Mercurial > repos > blastem

annotate z80inst.c @ 1637:95880d947257

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix for VRAM byte write order broke VDP FIFO testing ROM results. This change cleans up VRAM writes and fixes the regression while preserving the correct VRAM byte write order
author Michael Pavone <pavone@retrodev.com>
date Sun, 11 Nov 2018 22:39:29 -0800
parents 8519b54f9413
children e29ff59192ce
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 314
diff changeset
1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 314
diff changeset
2 Copyright 2013 Michael Pavone
651
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
3 This file is part of BlastEm.
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 314
diff changeset
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 314
diff changeset
5 */
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
6 #include "z80inst.h"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
7 #include <string.h>
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
8 #include <stdio.h>
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
9 #include <stddef.h>
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
10
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
11 #define NOP {Z80_NOP, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0}
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
12 #define USE_MAIN {Z80_USE_MAIN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0}
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
13
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
14 z80inst z80_tbl_a[256] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
15 //0
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
16 NOP,
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
17 {Z80_LD, Z80_BC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
18 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
19 {Z80_INC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
20 {Z80_INC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
21 {Z80_DEC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
22 {Z80_LD, Z80_B, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
23 {Z80_RLC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
24 {Z80_EX, Z80_AF, Z80_REG, Z80_AF, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
25 {Z80_ADD, Z80_HL, Z80_REG, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
26 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
27 {Z80_DEC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
28 {Z80_INC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
29 {Z80_DEC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
30 {Z80_LD, Z80_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
31 {Z80_RRC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
32 //1
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
33 {Z80_DJNZ, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
34 {Z80_LD, Z80_DE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
35 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
36 {Z80_INC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
37 {Z80_INC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
38 {Z80_DEC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
39 {Z80_LD, Z80_D, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
40 {Z80_RL, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
41 {Z80_JR, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
42 {Z80_ADD, Z80_HL, Z80_REG, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
43 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
44 {Z80_DEC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
45 {Z80_INC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
46 {Z80_DEC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
47 {Z80_LD, Z80_E, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
48 {Z80_RR, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
49 //2
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
50 {Z80_JRCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
51 {Z80_LD, Z80_HL, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
52 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
53 {Z80_INC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
54 {Z80_INC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
55 {Z80_DEC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
56 {Z80_LD, Z80_H, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
57 {Z80_DAA, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
58 {Z80_JRCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
59 {Z80_ADD, Z80_HL, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
60 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
61 {Z80_DEC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
62 {Z80_INC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
63 {Z80_DEC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
64 {Z80_LD, Z80_L, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
65 {Z80_CPL, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
66 //3
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
67 {Z80_JRCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
68 {Z80_LD, Z80_SP, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
69 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
70 {Z80_INC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
71 {Z80_INC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
72 {Z80_DEC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
73 {Z80_LD, Z80_USE_IMMED, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
74 {Z80_SCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
75 {Z80_JRCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
76 {Z80_ADD, Z80_HL, Z80_REG, Z80_SP, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
77 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
78 {Z80_DEC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
79 {Z80_INC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
80 {Z80_DEC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
81 {Z80_LD, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
82 {Z80_CCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
83 //4
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
84 {Z80_LD, Z80_B, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
85 {Z80_LD, Z80_B, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
86 {Z80_LD, Z80_B, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
87 {Z80_LD, Z80_B, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
88 {Z80_LD, Z80_B, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
89 {Z80_LD, Z80_B, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
90 {Z80_LD, Z80_B, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
91 {Z80_LD, Z80_B, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
92 {Z80_LD, Z80_C, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
93 {Z80_LD, Z80_C, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
94 {Z80_LD, Z80_C, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
95 {Z80_LD, Z80_C, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
96 {Z80_LD, Z80_C, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
97 {Z80_LD, Z80_C, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
98 {Z80_LD, Z80_C, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
99 {Z80_LD, Z80_C, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
100 //5
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
101 {Z80_LD, Z80_D, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
102 {Z80_LD, Z80_D, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
103 {Z80_LD, Z80_D, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
104 {Z80_LD, Z80_D, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
105 {Z80_LD, Z80_D, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
106 {Z80_LD, Z80_D, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
107 {Z80_LD, Z80_D, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
108 {Z80_LD, Z80_D, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
109 {Z80_LD, Z80_E, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
110 {Z80_LD, Z80_E, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
111 {Z80_LD, Z80_E, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
112 {Z80_LD, Z80_E, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
113 {Z80_LD, Z80_E, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
114 {Z80_LD, Z80_E, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
115 {Z80_LD, Z80_E, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
116 {Z80_LD, Z80_E, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
117 //6
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
118 {Z80_LD, Z80_H, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
119 {Z80_LD, Z80_H, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
120 {Z80_LD, Z80_H, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
121 {Z80_LD, Z80_H, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
122 {Z80_LD, Z80_H, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
123 {Z80_LD, Z80_H, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
124 {Z80_LD, Z80_H, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
125 {Z80_LD, Z80_H, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
126 {Z80_LD, Z80_L, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
127 {Z80_LD, Z80_L, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
128 {Z80_LD, Z80_L, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
129 {Z80_LD, Z80_L, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
130 {Z80_LD, Z80_L, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
131 {Z80_LD, Z80_L, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
132 {Z80_LD, Z80_L, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
133 {Z80_LD, Z80_L, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
134 //7
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
135 {Z80_LD, Z80_B, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
136 {Z80_LD, Z80_C, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
137 {Z80_LD, Z80_D, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
138 {Z80_LD, Z80_E, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
139 {Z80_LD, Z80_H, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
140 {Z80_LD, Z80_L, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
141 {Z80_HALT, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
142 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 {Z80_LD, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
144 {Z80_LD, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
145 {Z80_LD, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
146 {Z80_LD, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
147 {Z80_LD, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
148 {Z80_LD, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
149 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
150 {Z80_LD, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
151 //8
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
152 {Z80_ADD, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
153 {Z80_ADD, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
154 {Z80_ADD, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
155 {Z80_ADD, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
156 {Z80_ADD, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
157 {Z80_ADD, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
158 {Z80_ADD, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
159 {Z80_ADD, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
160 {Z80_ADC, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
161 {Z80_ADC, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
162 {Z80_ADC, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
163 {Z80_ADC, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
164 {Z80_ADC, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
165 {Z80_ADC, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
166 {Z80_ADC, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
167 {Z80_ADC, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
168 //9
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
169 {Z80_SUB, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
170 {Z80_SUB, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
171 {Z80_SUB, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
172 {Z80_SUB, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
173 {Z80_SUB, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
174 {Z80_SUB, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
175 {Z80_SUB, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
176 {Z80_SUB, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
177 {Z80_SBC, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
178 {Z80_SBC, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
179 {Z80_SBC, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
180 {Z80_SBC, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
181 {Z80_SBC, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
182 {Z80_SBC, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
183 {Z80_SBC, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
184 {Z80_SBC, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
185 //A
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
186 {Z80_AND, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
187 {Z80_AND, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
188 {Z80_AND, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
189 {Z80_AND, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
190 {Z80_AND, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
191 {Z80_AND, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
192 {Z80_AND, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
193 {Z80_AND, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
194 {Z80_XOR, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
195 {Z80_XOR, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
196 {Z80_XOR, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
197 {Z80_XOR, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
198 {Z80_XOR, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
199 {Z80_XOR, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
200 {Z80_XOR, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
201 {Z80_XOR, Z80_A, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
202 //B
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
203 {Z80_OR, Z80_A, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
204 {Z80_OR, Z80_A, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
205 {Z80_OR, Z80_A, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
206 {Z80_OR, Z80_A, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
207 {Z80_OR, Z80_A, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
208 {Z80_OR, Z80_A, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
209 {Z80_OR, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
210 {Z80_OR, Z80_A, Z80_REG, Z80_A, 0},
270
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
211 {Z80_CP, Z80_A, Z80_REG, Z80_B, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
212 {Z80_CP, Z80_A, Z80_REG, Z80_C, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
213 {Z80_CP, Z80_A, Z80_REG, Z80_D, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
214 {Z80_CP, Z80_A, Z80_REG, Z80_E, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
215 {Z80_CP, Z80_A, Z80_REG, Z80_H, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
216 {Z80_CP, Z80_A, Z80_REG, Z80_L, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
217 {Z80_CP, Z80_A, Z80_REG_INDIRECT, Z80_HL, 0},
df5bf4c113dc Fix decoding of CP.
Mike Pavone <pavone@retrodev.com>
parents: 256
diff changeset
218 {Z80_CP, Z80_A, Z80_REG, Z80_A, 0},
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
219 //C
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
220 {Z80_RETCC, Z80_CC_NZ, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
221 {Z80_POP, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
222 {Z80_JPCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
223 {Z80_JP, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
224 {Z80_CALLCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
225 {Z80_PUSH, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
226 {Z80_ADD, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
227 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
228 {Z80_RETCC, Z80_CC_Z, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
229 {Z80_RET, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
230 {Z80_JPCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
231 {0, 0, 0, 0, 0},//BITS Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
232 {Z80_CALLCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
233 {Z80_CALL, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
234 {Z80_ADC, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
235 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x8},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
236 //D
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
237 {Z80_RETCC, Z80_CC_NC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
238 {Z80_POP, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
239 {Z80_JPCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
240 {Z80_OUT, Z80_A, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
241 {Z80_CALLCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
242 {Z80_PUSH, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
243 {Z80_SUB, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
244 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x10},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
245 {Z80_RETCC, Z80_CC_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
246 {Z80_EXX, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
247 {Z80_JPCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
248 {Z80_IN, Z80_A, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
249 {Z80_CALLCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
250 {0, 0, 0, 0, 0},//IX Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
251 {Z80_SBC, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
252 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x18},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
253 //E
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
254 {Z80_RETCC, Z80_CC_PO, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
255 {Z80_POP, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
256 {Z80_JPCC, Z80_CC_PO, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
257 {Z80_EX, Z80_HL, Z80_REG_INDIRECT | Z80_DIR, Z80_SP, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
258 {Z80_CALLCC, Z80_CC_PO, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
259 {Z80_PUSH, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
260 {Z80_AND, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
261 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x20},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
262 {Z80_RETCC, Z80_CC_PE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
263 {Z80_JP, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
264 {Z80_JPCC, Z80_CC_PE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
265 {Z80_EX, Z80_DE, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
266 {Z80_CALLCC, Z80_CC_PE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
267 {0, 0, 0, 0, 0},//EXTD Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
268 {Z80_XOR, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
269 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x28},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
270 //F
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
271 {Z80_RETCC, Z80_CC_P, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
272 {Z80_POP, Z80_AF, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
273 {Z80_JPCC, Z80_CC_P, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
274 {Z80_DI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
275 {Z80_CALLCC, Z80_CC_P, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
276 {Z80_PUSH, Z80_AF, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
277 {Z80_OR, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
278 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x30},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
279 {Z80_RETCC, Z80_CC_M, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280 {Z80_LD, Z80_SP, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
281 {Z80_JPCC, Z80_CC_M, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
282 {Z80_EI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
283 {Z80_CALLCC, Z80_CC_M, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
284 {0, 0, 0, 0, 0},//IY Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
285 {Z80_CP, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
286 {Z80_RST, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0x38}
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
287 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
288
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
289 z80inst z80_tbl_extd[0xC0-0x40] = {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
290 //4
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
291 {Z80_IN, Z80_B, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
292 {Z80_OUT, Z80_B, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
293 {Z80_SBC, Z80_HL, Z80_REG, Z80_BC, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
294 {Z80_LD, Z80_BC, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
295 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
296 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
297 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
298 {Z80_LD, Z80_I, Z80_REG, Z80_A, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
299 {Z80_IN, Z80_C, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
300 {Z80_OUT, Z80_C, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
301 {Z80_ADC, Z80_HL, Z80_REG, Z80_BC, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
302 {Z80_LD, Z80_BC, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
303 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
304 {Z80_RETI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
305 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 3},//Set undocumented mode 0/1
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
306 {Z80_LD, Z80_R, Z80_REG, Z80_A, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
307 //5
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
308 {Z80_IN, Z80_D, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
309 {Z80_OUT, Z80_D, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
310 {Z80_SBC, Z80_HL, Z80_REG, Z80_DE, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
311 {Z80_LD, Z80_DE, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
312 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
313 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
314 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 1},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
315 {Z80_LD, Z80_A, Z80_REG, Z80_I, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
316 {Z80_IN, Z80_E, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
317 {Z80_OUT, Z80_E, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
318 {Z80_ADC, Z80_HL, Z80_REG, Z80_DE, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
319 {Z80_LD, Z80_DE, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
320 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
321 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
322 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 2},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
323 {Z80_LD, Z80_A, Z80_REG, Z80_R, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
324 //6
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
325 {Z80_IN, Z80_H, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
326 {Z80_OUT, Z80_H, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
327 {Z80_SBC, Z80_HL, Z80_REG, Z80_HL, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
328 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
329 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
330 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
331 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
332 {Z80_RRD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
333 {Z80_IN, Z80_L, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
334 {Z80_OUT, Z80_L, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
335 {Z80_ADC, Z80_HL, Z80_REG, Z80_HL, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
336 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
337 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
338 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
339 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 3},//Set undocumented mode 0/1
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
340 {Z80_RLD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
341 //7
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
342 {Z80_IN, Z80_UNUSED, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
343 {Z80_OUT, Z80_USE_IMMED, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
344 {Z80_SBC, Z80_HL, Z80_REG, Z80_SP, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
345 {Z80_LD, Z80_SP, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
346 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
347 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
348 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 1},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
349 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
350 {Z80_IN, Z80_A, Z80_REG_INDIRECT, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
351 {Z80_OUT, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_C, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
352 {Z80_ADC, Z80_HL, Z80_REG, Z80_SP, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
353 {Z80_LD, Z80_SP, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
354 {Z80_NEG, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
355 {Z80_RETN, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
356 {Z80_IM, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 2},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
357 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
358 //8
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
359 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
360 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
361 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
362 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
363 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
364 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
365 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
366 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
367 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
368 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
369 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
370 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
371 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
372 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
373 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
374 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
375 //9
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
376 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
377 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
378 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
379 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
380 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
381 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
382 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
383 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
384 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
385 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
386 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
387 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
388 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
389 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
390 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
391 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
392 //A
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
393 {Z80_LDI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
394 {Z80_CPI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
395 {Z80_INI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
396 {Z80_OUTI, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
397 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
398 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
399 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
400 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
401 {Z80_LDD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
402 {Z80_CPD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
403 {Z80_IND, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
404 {Z80_OUTD, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
405 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
406 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
407 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
408 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
409 //B
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
410 {Z80_LDIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
411 {Z80_CPIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
412 {Z80_INIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
413 {Z80_OTIR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
414 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
415 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
416 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
417 NOP,
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
418 {Z80_LDDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
419 {Z80_CPDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
420 {Z80_INDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
421 {Z80_OTDR, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
422 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
423 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
424 NOP,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
425 NOP
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
426 };
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
427
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
428 #define SHIFT_BLOCK(op) \
247
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
429 {op, Z80_B, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
430 {op, Z80_C, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
431 {op, Z80_D, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
432 {op, Z80_E, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
433 {op, Z80_H, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
434 {op, Z80_L, Z80_UNUSED, Z80_UNUSED, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
435 {op, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 1},\
682e505f5757 Implement rotation and bit set/reset instructions (untested).
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
436 {op, Z80_A, Z80_UNUSED, Z80_UNUSED, 1}
651
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
437
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
438 #define BIT_BLOCK(op, bit) \
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
439 {op, Z80_USE_IMMED, Z80_REG, Z80_B, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
440 {op, Z80_USE_IMMED, Z80_REG, Z80_C, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
441 {op, Z80_USE_IMMED, Z80_REG, Z80_D, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
442 {op, Z80_USE_IMMED, Z80_REG, Z80_E, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
443 {op, Z80_USE_IMMED, Z80_REG, Z80_H, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
444 {op, Z80_USE_IMMED, Z80_REG, Z80_L, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
445 {op, Z80_USE_IMMED, Z80_REG_INDIRECT, Z80_HL, bit},\
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
446 {op, Z80_USE_IMMED, Z80_REG, Z80_A, bit}
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
447
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
448 z80inst z80_tbl_bit[256] = {
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
449 //0
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
450 SHIFT_BLOCK(Z80_RLC),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
451 SHIFT_BLOCK(Z80_RRC),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
452 //1
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
453 SHIFT_BLOCK(Z80_RL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
454 SHIFT_BLOCK(Z80_RR),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
455 //2
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
456 SHIFT_BLOCK(Z80_SLA),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
457 SHIFT_BLOCK(Z80_SRA),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
458 //3
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
459 SHIFT_BLOCK(Z80_SLL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
460 SHIFT_BLOCK(Z80_SRL),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
461 //4
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
462 BIT_BLOCK(Z80_BIT, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
463 BIT_BLOCK(Z80_BIT, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
464 //5
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
465 BIT_BLOCK(Z80_BIT, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
466 BIT_BLOCK(Z80_BIT, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
467 //6
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
468 BIT_BLOCK(Z80_BIT, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
469 BIT_BLOCK(Z80_BIT, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
470 //7
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
471 BIT_BLOCK(Z80_BIT, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
472 BIT_BLOCK(Z80_BIT, 7),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
473 //8
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
474 BIT_BLOCK(Z80_RES, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
475 BIT_BLOCK(Z80_RES, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
476 //9
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
477 BIT_BLOCK(Z80_RES, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
478 BIT_BLOCK(Z80_RES, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
479 //A
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
480 BIT_BLOCK(Z80_RES, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
481 BIT_BLOCK(Z80_RES, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
482 //B
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
483 BIT_BLOCK(Z80_RES, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
484 BIT_BLOCK(Z80_RES, 7),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
485 //C
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
486 BIT_BLOCK(Z80_SET, 0),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
487 BIT_BLOCK(Z80_SET, 1),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
488 //D
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
489 BIT_BLOCK(Z80_SET, 2),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
490 BIT_BLOCK(Z80_SET, 3),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
491 //E
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
492 BIT_BLOCK(Z80_SET, 4),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
493 BIT_BLOCK(Z80_SET, 5),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
494 //F
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
495 BIT_BLOCK(Z80_SET, 6),
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
496 BIT_BLOCK(Z80_SET, 7)
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
497 };
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
498
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
499 z80inst z80_tbl_ix[256] = {
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
500 //0
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
501 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
502 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
503 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
504 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
505 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
506 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
507 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
508 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
509 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
510 {Z80_ADD, Z80_IX, Z80_REG, Z80_BC, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
511 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
512 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
513 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
514 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
515 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
516 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
517 //1
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
518 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
519 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
520 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
521 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
522 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
523 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
524 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
525 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
526 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
527 {Z80_ADD, Z80_IX, Z80_REG, Z80_DE, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
528 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
529 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
530 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
531 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
532 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
533 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
534 //2
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
535 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
536 {Z80_LD, Z80_IX, Z80_IMMED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
537 {Z80_LD, Z80_IX, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
538 {Z80_INC, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
539 {Z80_INC, Z80_IXH, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
540 {Z80_DEC, Z80_IXH, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
541 {Z80_LD, Z80_IXH, Z80_IMMED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
542 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
543 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
544 {Z80_ADD, Z80_IX, Z80_REG, Z80_IX, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
545 {Z80_LD, Z80_IX, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
546 {Z80_DEC, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
547 {Z80_INC, Z80_IXL, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
548 {Z80_DEC, Z80_IXL, Z80_UNUSED, Z80_UNUSED, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
549 {Z80_LD, Z80_IXL, Z80_IMMED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
550 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
551 //3
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
552 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
553 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
554 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
555 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
556 {Z80_INC, Z80_UNUSED, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
557 {Z80_DEC, Z80_UNUSED, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
558 {Z80_LD, Z80_USE_IMMED, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
559 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
560 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
561 {Z80_ADD, Z80_IX, Z80_REG, Z80_SP, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
562 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
563 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
564 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
565 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
566 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
567 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
568 //4
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
569 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
570 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
571 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
572 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
573 {Z80_LD, Z80_B, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
574 {Z80_LD, Z80_B, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
575 {Z80_LD, Z80_B, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
576 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
577 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
578 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
579 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
580 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
581 {Z80_LD, Z80_C, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
582 {Z80_LD, Z80_C, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
583 {Z80_LD, Z80_C, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
584 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
585 //5
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
586 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
587 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
588 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
589 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
590 {Z80_LD, Z80_D, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
591 {Z80_LD, Z80_D, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
592 {Z80_LD, Z80_D, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
593 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
594 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
595 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
596 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
597 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
598 {Z80_LD, Z80_E, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
599 {Z80_LD, Z80_E, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
600 {Z80_LD, Z80_E, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
601 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
602 //6
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
603 {Z80_LD, Z80_IXH, Z80_REG, Z80_B, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
604 {Z80_LD, Z80_IXH, Z80_REG, Z80_C, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
605 {Z80_LD, Z80_IXH, Z80_REG, Z80_D, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
606 {Z80_LD, Z80_IXH, Z80_REG, Z80_E, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
607 {Z80_LD, Z80_IXH, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
608 {Z80_LD, Z80_IXH, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
609 {Z80_LD, Z80_H, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
610 {Z80_LD, Z80_IXH, Z80_REG, Z80_A, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
611 {Z80_LD, Z80_IXL, Z80_REG, Z80_B, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
612 {Z80_LD, Z80_IXL, Z80_REG, Z80_C, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
613 {Z80_LD, Z80_IXL, Z80_REG, Z80_D, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
614 {Z80_LD, Z80_IXL, Z80_REG, Z80_E, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
615 {Z80_LD, Z80_IXL, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
616 {Z80_LD, Z80_IXL, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
617 {Z80_LD, Z80_L, Z80_IX_DISPLACE, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
618 {Z80_LD, Z80_IXL, Z80_REG, Z80_A, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
619 //7
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
620 {Z80_LD, Z80_B, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
621 {Z80_LD, Z80_C, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
622 {Z80_LD, Z80_D, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
623 {Z80_LD, Z80_E, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
624 {Z80_LD, Z80_H, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
625 {Z80_LD, Z80_L, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
626 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
627 {Z80_LD, Z80_A, Z80_IX_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
628 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
629 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
630 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
631 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
632 {Z80_LD, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
633 {Z80_LD, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
634 {Z80_LD, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
635 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
636 //8
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
637 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
638 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
639 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
640 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
641 {Z80_ADD, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
642 {Z80_ADD, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
643 {Z80_ADD, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
644 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
645 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
646 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
647 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
648 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
649 {Z80_ADC, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
650 {Z80_ADC, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
651 {Z80_ADC, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
652 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
653 //9
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
654 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
655 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
656 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
657 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
658 {Z80_SUB, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
659 {Z80_SUB, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
660 {Z80_SUB, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
661 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
662 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
663 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
664 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
665 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
666 {Z80_SBC, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
667 {Z80_SBC, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
668 {Z80_SBC, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
669 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
670 //A
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
671 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
672 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
673 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
674 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
675 {Z80_AND, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
676 {Z80_AND, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
677 {Z80_AND, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
678 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
679 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
680 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
681 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
682 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
683 {Z80_XOR, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
684 {Z80_XOR, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
685 {Z80_XOR, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
686 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
687 //B
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
688 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
689 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
690 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
691 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
692 {Z80_OR, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
693 {Z80_OR, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
694 {Z80_OR, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
695 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
696 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
697 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
698 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
699 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
700 {Z80_CP, Z80_A, Z80_REG, Z80_IXH, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
701 {Z80_CP, Z80_A, Z80_REG, Z80_IXL, 0},
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
702 {Z80_CP, Z80_A, Z80_IX_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
703 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
704 //C
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
705 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
706 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
707 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
708 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
709 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
710 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
711 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
712 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
713 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
714 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
715 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
716 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
717 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
718 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
719 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
720 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
721 //D
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
722 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
723 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
724 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
725 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
726 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
727 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
728 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
729 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
730 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
731 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
732 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
733 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
734 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
735 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
736 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
737 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
738 //E
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
739 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
740 {Z80_POP, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
741 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
742 {Z80_EX, Z80_IX, Z80_REG_INDIRECT | Z80_DIR, Z80_SP, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
743 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
744 {Z80_PUSH, Z80_IX, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
745 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
746 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
747 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
748 {Z80_JP, Z80_UNUSED, Z80_REG_INDIRECT, Z80_IX, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
749 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
750 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
751 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
752 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
753 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
754 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
755 //F
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
756 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
757 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
758 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
759 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
760 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
761 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
762 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
763 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
764 USE_MAIN,
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
765 {Z80_LD, Z80_SP, Z80_REG, Z80_IX, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
766 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
767 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
768 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
769 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
770 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
771 USE_MAIN
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
772 };
202
693ad04b965e Distinguish between 1-byte and 2-byte NOPs
Mike Pavone <pavone@retrodev.com>
parents: 201
diff changeset
773
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
774 #define SHIFT_BLOCK_IX(op) \
651
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
775 {op, Z80_B, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
776 {op, Z80_C, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
777 {op, Z80_D, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
778 {op, Z80_E, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
779 {op, Z80_H, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
780 {op, Z80_L, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
781 {op, Z80_UNUSED, Z80_IX_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
782 {op, Z80_A, Z80_IX_DISPLACE | Z80_DIR, 0, 1}
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
783
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
784 #define BIT_BLOCK_IX(bit) \
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
785 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
786 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
787 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
788 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
789 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
790 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
791 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
792 {Z80_BIT, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit}
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
793
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
794 #define BIT_BLOCK_IX_REG(op, bit) \
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
795 {op, Z80_B, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
796 {op, Z80_C, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
797 {op, Z80_D, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
798 {op, Z80_E, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
799 {op, Z80_H, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
800 {op, Z80_L, Z80_IX_DISPLACE | Z80_DIR, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
801 {op, Z80_USE_IMMED, Z80_IX_DISPLACE, 0, bit},\
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
802 {op, Z80_A, Z80_IX_DISPLACE | Z80_DIR, 0, bit}
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
803
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
804 z80inst z80_tbl_ix_bit[256] = {
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
805 //0
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
806 SHIFT_BLOCK_IX(Z80_RLC),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
807 SHIFT_BLOCK_IX(Z80_RRC),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
808 //1
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
809 SHIFT_BLOCK_IX(Z80_RL),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
810 SHIFT_BLOCK_IX(Z80_RR),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
811 //2
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
812 SHIFT_BLOCK_IX(Z80_SLA),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
813 SHIFT_BLOCK_IX(Z80_SRA),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
814 //3
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
815 SHIFT_BLOCK_IX(Z80_SLL),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
816 SHIFT_BLOCK_IX(Z80_SRL),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
817 //4
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
818 BIT_BLOCK_IX(0),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
819 BIT_BLOCK_IX(1),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
820 //5
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
821 BIT_BLOCK_IX(2),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
822 BIT_BLOCK_IX(3),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
823 //6
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
824 BIT_BLOCK_IX(4),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
825 BIT_BLOCK_IX(5),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
826 //7
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
827 BIT_BLOCK_IX(6),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
828 BIT_BLOCK_IX(7),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
829 //8
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
830 BIT_BLOCK_IX_REG(Z80_RES, 0),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
831 BIT_BLOCK_IX_REG(Z80_RES, 1),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
832 //9
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
833 BIT_BLOCK_IX_REG(Z80_RES, 2),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
834 BIT_BLOCK_IX_REG(Z80_RES, 3),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
835 //A
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
836 BIT_BLOCK_IX_REG(Z80_RES, 4),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
837 BIT_BLOCK_IX_REG(Z80_RES, 5),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
838 //B
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
839 BIT_BLOCK_IX_REG(Z80_RES, 6),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
840 BIT_BLOCK_IX_REG(Z80_RES, 7),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
841 //C
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
842 BIT_BLOCK_IX_REG(Z80_SET, 0),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
843 BIT_BLOCK_IX_REG(Z80_SET, 1),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
844 //D
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
845 BIT_BLOCK_IX_REG(Z80_SET, 2),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
846 BIT_BLOCK_IX_REG(Z80_SET, 3),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
847 //E
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
848 BIT_BLOCK_IX_REG(Z80_SET, 4),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
849 BIT_BLOCK_IX_REG(Z80_SET, 5),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
850 //F
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
851 BIT_BLOCK_IX_REG(Z80_SET, 6),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
852 BIT_BLOCK_IX_REG(Z80_SET, 7),
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
853 };
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
854
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
855 z80inst z80_tbl_iy[256] = {
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
856 //0
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
857 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
858 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
859 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
860 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
861 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
862 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
863 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
864 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
865 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
866 {Z80_ADD, Z80_IY, Z80_REG, Z80_BC, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
867 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
868 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
869 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
870 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
871 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
872 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
873 //1
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
874 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
875 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
876 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
877 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
878 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
879 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
880 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
881 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
882 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
883 {Z80_ADD, Z80_IY, Z80_REG, Z80_DE, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
884 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
885 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
886 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
887 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
888 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
889 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
890 //2
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
891 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
892 {Z80_LD, Z80_IY, Z80_IMMED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
893 {Z80_LD, Z80_IY, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
894 {Z80_INC, Z80_IY, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
895 {Z80_INC, Z80_IYH, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
896 {Z80_DEC, Z80_IYH, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
897 {Z80_LD, Z80_IYH, Z80_IMMED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
898 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
899 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
900 {Z80_ADD, Z80_IY, Z80_REG, Z80_IY, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
901 {Z80_LD, Z80_IY, Z80_IMMED_INDIRECT, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
902 {Z80_DEC, Z80_IY, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
903 {Z80_INC, Z80_IYL, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
904 {Z80_DEC, Z80_IYL, Z80_UNUSED, Z80_UNUSED, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
905 {Z80_LD, Z80_IYL, Z80_IMMED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
906 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
907 //3
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
908 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
909 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
910 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
911 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
912 {Z80_INC, Z80_UNUSED, Z80_IY_DISPLACE, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
913 {Z80_DEC, Z80_UNUSED, Z80_IY_DISPLACE, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
914 {Z80_LD, Z80_USE_IMMED, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
915 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
916 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
917 {Z80_ADD, Z80_IY, Z80_REG, Z80_SP, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
918 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
919 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
920 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
921 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
922 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
923 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
924 //4
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
925 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
926 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
927 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
928 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
929 {Z80_LD, Z80_B, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
930 {Z80_LD, Z80_B, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
931 {Z80_LD, Z80_B, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
932 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
933 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
934 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
935 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
936 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
937 {Z80_LD, Z80_C, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
938 {Z80_LD, Z80_C, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
939 {Z80_LD, Z80_C, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
940 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
941 //5
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
942 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
943 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
944 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
945 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
946 {Z80_LD, Z80_D, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
947 {Z80_LD, Z80_D, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
948 {Z80_LD, Z80_D, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
949 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
950 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
951 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
952 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
953 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
954 {Z80_LD, Z80_E, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
955 {Z80_LD, Z80_E, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
956 {Z80_LD, Z80_E, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
957 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
958 //6
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
959 {Z80_LD, Z80_IYH, Z80_REG, Z80_B, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
960 {Z80_LD, Z80_IYH, Z80_REG, Z80_C, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
961 {Z80_LD, Z80_IYH, Z80_REG, Z80_D, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
962 {Z80_LD, Z80_IYH, Z80_REG, Z80_E, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
963 {Z80_LD, Z80_IYH, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
964 {Z80_LD, Z80_IYH, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
965 {Z80_LD, Z80_H, Z80_IY_DISPLACE, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
966 {Z80_LD, Z80_IYH, Z80_REG, Z80_A, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
967 {Z80_LD, Z80_IYL, Z80_REG, Z80_B, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
968 {Z80_LD, Z80_IYL, Z80_REG, Z80_C, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
969 {Z80_LD, Z80_IYL, Z80_REG, Z80_D, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
970 {Z80_LD, Z80_IYL, Z80_REG, Z80_E, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
971 {Z80_LD, Z80_IYL, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
972 {Z80_LD, Z80_IYL, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
973 {Z80_LD, Z80_L, Z80_IY_DISPLACE, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
974 {Z80_LD, Z80_IYL, Z80_REG, Z80_A, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
975 //7
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
976 {Z80_LD, Z80_B, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
977 {Z80_LD, Z80_C, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
978 {Z80_LD, Z80_D, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
979 {Z80_LD, Z80_E, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
980 {Z80_LD, Z80_H, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
981 {Z80_LD, Z80_L, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
982 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
983 {Z80_LD, Z80_A, Z80_IY_DISPLACE | Z80_DIR, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
984 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
985 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
986 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
987 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
988 {Z80_LD, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
989 {Z80_LD, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
990 {Z80_LD, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
991 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
992 //8
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
993 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
994 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
995 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
996 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
997 {Z80_ADD, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
998 {Z80_ADD, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
999 {Z80_ADD, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1000 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1001 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1002 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1003 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1004 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1005 {Z80_ADC, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1006 {Z80_ADC, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1007 {Z80_ADC, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1008 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1009 //9
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1010 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1011 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1012 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1013 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1014 {Z80_SUB, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1015 {Z80_SUB, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1016 {Z80_SUB, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1017 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1018 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1019 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1020 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1021 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1022 {Z80_SBC, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1023 {Z80_SBC, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1024 {Z80_SBC, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1025 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1026 //A
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1027 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1028 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1029 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1030 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1031 {Z80_AND, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1032 {Z80_AND, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1033 {Z80_AND, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1034 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1035 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1036 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1037 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1038 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1039 {Z80_XOR, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1040 {Z80_XOR, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1041 {Z80_XOR, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1042 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1043 //B
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1044 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1045 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1046 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1047 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1048 {Z80_OR, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1049 {Z80_OR, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1050 {Z80_OR, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1051 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1052 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1053 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1054 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1055 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1056 {Z80_CP, Z80_A, Z80_REG, Z80_IYH, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1057 {Z80_CP, Z80_A, Z80_REG, Z80_IYL, 0},
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1058 {Z80_CP, Z80_A, Z80_IY_DISPLACE, 0, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1059 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1060 //C
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1061 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1062 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1063 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1064 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1065 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1066 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1067 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1068 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1069 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1070 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1071 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1072 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1073 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1074 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1075 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1076 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1077 //D
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1078 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1079 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1080 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1081 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1082 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1083 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1084 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1085 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1086 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1087 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1088 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1089 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1090 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1091 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1092 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1093 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1094 //E
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1095 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1096 {Z80_POP, Z80_IY, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1097 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1098 {Z80_EX, Z80_IY, Z80_REG_INDIRECT | Z80_DIR, Z80_SP, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1099 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1100 {Z80_PUSH, Z80_IY, Z80_UNUSED, Z80_UNUSED, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1101 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1102 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1103 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1104 {Z80_JP, Z80_UNUSED, Z80_REG_INDIRECT, Z80_IY, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1105 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1106 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1107 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1108 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1109 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1110 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1111 //F
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1112 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1113 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1114 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1115 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1116 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1117 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1118 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1119 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1120 USE_MAIN,
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1121 {Z80_LD, Z80_SP, Z80_REG, Z80_IY, 0},
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1122 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1123 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1124 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1125 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1126 USE_MAIN,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1127 USE_MAIN
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1128 };
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1129
206
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1130 #define SHIFT_BLOCK_IY(op) \
651
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1131 {op, Z80_B, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1132 {op, Z80_C, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1133 {op, Z80_D, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1134 {op, Z80_E, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1135 {op, Z80_H, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1136 {op, Z80_L, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1137 {op, Z80_UNUSED, Z80_IY_DISPLACE | Z80_DIR, 0, 1},\
103d5cabbe14 Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.
Michael Pavone <pavone@retrodev.com>
parents: 467
diff changeset
1138 {op, Z80_A, Z80_IY_DISPLACE | Z80_DIR, 0, 1}
206
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1139
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1140 #define BIT_BLOCK_IY(bit) \
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1141 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1142 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1143 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1144 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1145 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1146 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1147 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1148 {Z80_BIT, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit}
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1149
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1150 #define BIT_BLOCK_IY_REG(op, bit) \
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1151 {op, Z80_B, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1152 {op, Z80_C, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1153 {op, Z80_D, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1154 {op, Z80_E, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1155 {op, Z80_H, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1156 {op, Z80_L, Z80_IY_DISPLACE | Z80_DIR, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1157 {op, Z80_USE_IMMED, Z80_IY_DISPLACE, 0, bit},\
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1158 {op, Z80_A, Z80_IY_DISPLACE | Z80_DIR, 0, bit}
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1159
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1160 z80inst z80_tbl_iy_bit[256] = {
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1161 //0
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1162 SHIFT_BLOCK_IY(Z80_RLC),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1163 SHIFT_BLOCK_IY(Z80_RRC),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1164 //1
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1165 SHIFT_BLOCK_IY(Z80_RL),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1166 SHIFT_BLOCK_IY(Z80_RR),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1167 //2
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1168 SHIFT_BLOCK_IY(Z80_SLA),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1169 SHIFT_BLOCK_IY(Z80_SRA),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1170 //3
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1171 SHIFT_BLOCK_IY(Z80_SLL),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1172 SHIFT_BLOCK_IY(Z80_SRL),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1173 //4
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1174 BIT_BLOCK_IY(0),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1175 BIT_BLOCK_IY(1),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1176 //5
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1177 BIT_BLOCK_IY(2),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1178 BIT_BLOCK_IY(3),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1179 //6
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1180 BIT_BLOCK_IY(4),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1181 BIT_BLOCK_IY(5),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1182 //7
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1183 BIT_BLOCK_IY(6),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1184 BIT_BLOCK_IY(7),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1185 //8
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1186 BIT_BLOCK_IY_REG(Z80_RES, 0),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1187 BIT_BLOCK_IY_REG(Z80_RES, 1),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1188 //9
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1189 BIT_BLOCK_IY_REG(Z80_RES, 2),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1190 BIT_BLOCK_IY_REG(Z80_RES, 3),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1191 //A
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1192 BIT_BLOCK_IY_REG(Z80_RES, 4),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1193 BIT_BLOCK_IY_REG(Z80_RES, 5),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1194 //B
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1195 BIT_BLOCK_IY_REG(Z80_RES, 6),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1196 BIT_BLOCK_IY_REG(Z80_RES, 7),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1197 //C
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1198 BIT_BLOCK_IY_REG(Z80_SET, 0),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1199 BIT_BLOCK_IY_REG(Z80_SET, 1),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1200 //D
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1201 BIT_BLOCK_IY_REG(Z80_SET, 2),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1202 BIT_BLOCK_IY_REG(Z80_SET, 3),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1203 //E
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1204 BIT_BLOCK_IY_REG(Z80_SET, 4),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1205 BIT_BLOCK_IY_REG(Z80_SET, 5),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1206 //F
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1207 BIT_BLOCK_IY_REG(Z80_SET, 6),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1208 BIT_BLOCK_IY_REG(Z80_SET, 7),
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1209 };
807ca611b561 Add support for IY bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 205
diff changeset
1210
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1211 enum {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1212 NORMAL,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1213 USE_IX,
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1214 USE_IY
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1215 };
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1216
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1217 uint8_t * z80_decode(uint8_t * istream, z80inst * decoded)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1218 {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1219 uint8_t tmp;
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1220 uint8_t *start = istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1221 uint8_t ixiy = NORMAL;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1222 uint16_t ixiy_disp = 0x100;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1223 z80inst *base = NULL;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1224 while(!base)
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1225 {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1226 switch (*istream)
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1227 {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1228 case 0xCB:
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1229 istream++;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1230 if (ixiy == NORMAL) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1231 base = z80_tbl_bit + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1232 } else if (ixiy == USE_IX) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1233 ixiy_disp = *(istream++);
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1234 base = z80_tbl_ix_bit + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1235 } else {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1236 ixiy_disp = *(istream++);
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1237 base = z80_tbl_iy_bit + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1238 }
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1239 break;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1240 case 0xED:
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1241 istream++;
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1242 ixiy = NORMAL;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1243 if (*istream < 0x40 || *istream >= 0xC0) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1244 base = z80_tbl_extd + 0xBF;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1245 } else {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1246 base = z80_tbl_extd + *istream - 0x40;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1247 }
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1248 break;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1249 case 0xDD:
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1250 istream++;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1251 ixiy = USE_IX;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1252 break;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1253 case 0xFD:
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1254 istream++;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1255 ixiy = USE_IY;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1256 break;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1257 default:
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1258 if (ixiy == NORMAL) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1259 base = z80_tbl_a + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1260 } else if (ixiy == USE_IX) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1261 base = z80_tbl_ix + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1262 } else {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1263 base = z80_tbl_iy + *istream;
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1264 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1265 }
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1266 }
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1267 if (base->op == Z80_USE_MAIN) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1268 base = z80_tbl_a + *istream;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1269 ixiy = NORMAL;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1270 }
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1271 memcpy(decoded, base, offsetof(z80inst, opcode_bytes));
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1272 decoded->opcode_bytes = istream - start + 1;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1273 if (ixiy != NORMAL) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1274 if (ixiy_disp < 0x100) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1275 decoded->ea_reg = ixiy_disp;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1276 //don't count displacement byte as an opcode byte
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1277 decoded->opcode_bytes--;
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1278 } else if ((decoded->addr_mode & 0x1F) == Z80_IX_DISPLACE || (decoded->addr_mode & 0x1F) == Z80_IY_DISPLACE) {
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1279 decoded->ea_reg = *(++istream);
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1280 }
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1281 }
1044
1625555e346e Properly handle redundant prefixes
Michael Pavone <pavone@retrodev.com>
parents: 651
diff changeset
1282
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1283 if ((decoded->addr_mode & 0x1F) == Z80_IMMED && decoded->op != Z80_RST && decoded->op != Z80_IM) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1284 decoded->immed = *(++istream);
256
ce7ce2b9c2df Fix decoding of address in JP and JPCC instructions in the Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 247
diff changeset
1285 if ((decoded->reg >= Z80_BC && decoded->reg < Z80_UNUSED) || decoded->op == Z80_CALL || decoded->op == Z80_CALLCC || decoded->op == Z80_JP || decoded->op == Z80_JPCC) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1286 decoded->immed |= *(++istream) << 8;
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1287 } else if (decoded->immed & 0x80) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1288 decoded->immed |= 0xFF00;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1289 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1290 } else if ((decoded->addr_mode & 0x1F) == Z80_IMMED_INDIRECT) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1291 decoded->immed = *(++istream);
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1292 if (decoded->op != Z80_OUT && decoded->op != Z80_IN) {
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1293 decoded->immed |= *(++istream) << 8;
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1294 }
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1295 }
1159
8519b54f9413 Fix decoding of undocumented Z80 instruction out (c), 0
Michael Pavone <pavone@retrodev.com>
parents: 1044
diff changeset
1296 if (decoded->reg == Z80_USE_IMMED && decoded->op != Z80_BIT && decoded->op != Z80_RES && decoded->op != Z80_SET && decoded->op != Z80_OUT) {
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1297 decoded->immed = *(++istream);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1298 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1299 return istream+1;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1300 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1301
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1302 char *z80_mnemonics[Z80_OTDR+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1303 "ld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1304 "push",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1305 "pop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1306 "ex",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1307 "exx",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1308 "ldi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1309 "ldir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1310 "ldd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1311 "lddr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1312 "cpi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1313 "cpir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1314 "cpd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1315 "cpdr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1316 "add",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1317 "adc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1318 "sub",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1319 "sbc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1320 "and",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1321 "or",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1322 "xor",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1323 "cp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1324 "inc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1325 "dec",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1326 "daa",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1327 "cpl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1328 "neg",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1329 "ccf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1330 "scf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1331 "nop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1332 "halt",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1333 "di",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1334 "ei",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1335 "im",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1336 "rlc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1337 "rl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1338 "rrc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1339 "rr",
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
1340 "sla",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
1341 "sra",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
1342 "sll",
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
1343 "srl",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1344 "rld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1345 "rrd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1346 "bit",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1347 "set",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1348 "res",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1349 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1350 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1351 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1352 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1353 "djnz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1354 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1355 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1356 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1357 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1358 "reti",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1359 "retn",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1360 "rst",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1361 "in",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1362 "ini",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1363 "inir",
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1364 "ind",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1365 "indr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1366 "out",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1367 "outi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1368 "otir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1369 "outd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1370 "otdr"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1371 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1372
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1373 char * z80_regs[Z80_USE_IMMED] = {
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents: 213
diff changeset
1374 "c",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1375 "b",
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents: 213
diff changeset
1376 "e",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1377 "d",
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents: 213
diff changeset
1378 "l",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1379 "h",
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents: 213
diff changeset
1380 "ixl",
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1381 "ixh",
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents: 213
diff changeset
1382 "iyl",
204
02dfa5962522 Add support for 2-byte IY instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 203
diff changeset
1383 "iyh",
200
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1384 "i",
d3066ceb29d1 Add support for EXTD group 2-byte Z80 instructions in decoder
Mike Pavone <pavone@retrodev.com>
parents: 199
diff changeset
1385 "r",
213
4d4559b04c59 Make reset trigger debug exit to make it easier to test the same cases in blastem and musashi. Fix asl #1 overflow flag.
Mike Pavone <pavone@retrodev.com>
parents: 206
diff changeset
1386 "a",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1387 "bc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1388 "de",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1389 "hl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1390 "sp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1391 "af",
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1392 "ix",
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1393 "iy",
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1394 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1395
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1396 char * z80_conditions[Z80_CC_M+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1397 "nz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1398 "z",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1399 "nc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1400 "c",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1401 "po",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1402 "pe",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1403 "p",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1404 "m"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1405 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1406
314
54c0e5f22198 Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 313
diff changeset
1407 int z80_disasm(z80inst * decoded, char * dst, uint16_t address)
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1408 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1409 int len = sprintf(dst, "%s", z80_mnemonics[decoded->op]);
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1410 uint8_t needcomma;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1411 if (decoded->addr_mode & Z80_DIR) {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1412 needcomma = 1;
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1413 switch (decoded->addr_mode & 0x1F)
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1414 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1415 case Z80_REG:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1416 len += sprintf(dst+len, " %s", z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1417 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1418 case Z80_REG_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1419 len += sprintf(dst+len, " (%s)", z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1420 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1421 case Z80_IMMED:
278
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1422 if (decoded->immed >= 63 || decoded->op == Z80_JP || decoded->op == Z80_JPCC || decoded->op == Z80_CALL || decoded->op == Z80_CALLCC || decoded->op == Z80_RST)
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1423 {
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1424 len += sprintf(dst+len, " $%X", decoded->immed);
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1425 } else {
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1426 len += sprintf(dst+len, " %d", decoded->immed);
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1427 }
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1428 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1429 case Z80_IMMED_INDIRECT:
278
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1430 len += sprintf(dst+len, " ($%X)", decoded->immed);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1431 break;
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1432 case Z80_IX_DISPLACE:
297
147e31983730 Fix printing of negative displacements in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 292
diff changeset
1433 len += sprintf(dst+len, " (ix+%d)", decoded->ea_reg & 0x80 ? decoded->ea_reg - 256 : decoded->ea_reg);
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1434 break;
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1435 case Z80_IY_DISPLACE:
297
147e31983730 Fix printing of negative displacements in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 292
diff changeset
1436 len += sprintf(dst+len, " (iy+%d)", decoded->ea_reg & 0x80 ? decoded->ea_reg - 256 : decoded->ea_reg);
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1437 break;
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1438 default:
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1439 needcomma = 0;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1440 }
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1441 if (decoded->reg & Z80_IMMED_FLAG) {
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1442 len += sprintf(dst+len, "%s %d", needcomma ? "," : "", decoded->immed);
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1443 }
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1444 if ((decoded->reg & 0x1F) != Z80_UNUSED) {
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1445 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1446 len += sprintf(dst+len, "%s %s", needcomma ? "," : "", z80_conditions[decoded->reg & 0x1F]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1447 } else {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1448 len += sprintf(dst+len, "%s %s", needcomma ? "," : "", z80_regs[decoded->reg & 0x1F]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1449 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1450 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1451 } else {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1452 needcomma = 0;
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1453 if (decoded->reg & Z80_IMMED_FLAG) {
201
2d2fa345e1fc Add support for bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 200
diff changeset
1454 len += sprintf(dst+len, " %d", decoded->immed);
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1455 needcomma = 1;
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1456 }
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1457 if ((decoded->reg & 0x1F) != Z80_UNUSED) {
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1458 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1459 len += sprintf(dst+len, " %s", z80_conditions[decoded->reg & 0x1F]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1460 } else {
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1461 len += sprintf(dst+len, " %s", z80_regs[decoded->reg & 0x1F]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1462 }
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1463 needcomma = 1;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1464 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1465 switch (decoded->addr_mode)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1466 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1467 case Z80_REG:
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1468 len += sprintf(dst+len, "%s %s", needcomma ? "," : "" , z80_regs[decoded->ea_reg]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1469 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1470 case Z80_REG_INDIRECT:
205
19b323614309 Add support for IX bit instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 204
diff changeset
1471 len += sprintf(dst+len, "%s (%s)", needcomma ? "," : "" , z80_regs[decoded->ea_reg]);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1472 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1473 case Z80_IMMED:
314
54c0e5f22198 Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 313
diff changeset
1474 if (decoded->op == Z80_JR || decoded->op == Z80_JRCC || decoded->op == Z80_DJNZ) {
54c0e5f22198 Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 313
diff changeset
1475 address += 2 + decoded->immed;
54c0e5f22198 Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 313
diff changeset
1476 len += sprintf(dst+len, "%s %X", needcomma ? "," : "" , address);
54c0e5f22198 Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 313
diff changeset
1477 } else if (decoded->immed >= 63 || decoded->op == Z80_JP || decoded->op == Z80_JPCC || decoded->op == Z80_CALL || decoded->op == Z80_CALLCC || decoded->op == Z80_RST)
278
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1478 {
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1479 len += sprintf(dst+len, "%s $%X", needcomma ? "," : "" , decoded->immed);
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1480 } else {
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1481 len += sprintf(dst+len, "%s %d", needcomma ? "," : "" , decoded->immed);
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1482 }
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1483 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1484 case Z80_IMMED_INDIRECT:
278
9578e5dea147 Use hex where appropriate in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 270
diff changeset
1485 len += sprintf(dst+len, "%s ($%X)", needcomma ? "," : "" , decoded->immed);
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1486 break;
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1487 case Z80_IX_DISPLACE:
297
147e31983730 Fix printing of negative displacements in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 292
diff changeset
1488 len += sprintf(dst+len, "%s (ix+%d)", needcomma ? "," : "" , decoded->ea_reg & 0x80 ? decoded->ea_reg - 256 : decoded->ea_reg);
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1489 break;
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1490 case Z80_IY_DISPLACE:
297
147e31983730 Fix printing of negative displacements in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents: 292
diff changeset
1491 len += sprintf(dst+len, "%s (iy+%d)", needcomma ? "," : "" , decoded->ea_reg & 0x80 ? decoded->ea_reg - 256 : decoded->ea_reg);
203
0ae589d4c3f9 Add support for 2-byte IX instructions to decoder
Mike Pavone <pavone@retrodev.com>
parents: 202
diff changeset
1492 break;
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1493 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1494 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1495 return len;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1496 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1497
292
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1498 uint8_t z80_high_reg(uint8_t reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1499 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1500 switch(reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1501 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1502 case Z80_C:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1503 case Z80_BC:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1504 return Z80_B;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1505 case Z80_E:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1506 case Z80_DE:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1507 return Z80_D;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1508 case Z80_L:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1509 case Z80_HL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1510 return Z80_H;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1511 case Z80_IXL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1512 case Z80_IX:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1513 return Z80_IXH;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1514 case Z80_IYL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1515 case Z80_IY:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1516 return Z80_IYH;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1517 default:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1518 return Z80_UNUSED;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1519 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1520 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1521
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1522 uint8_t z80_low_reg(uint8_t reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1523 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1524 switch(reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1525 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1526 case Z80_B:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1527 case Z80_BC:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1528 return Z80_C;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1529 case Z80_D:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1530 case Z80_DE:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1531 return Z80_E;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1532 case Z80_H:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1533 case Z80_HL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1534 return Z80_L;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1535 case Z80_IXH:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1536 case Z80_IX:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1537 return Z80_IXL;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1538 case Z80_IYH:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1539 case Z80_IY:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1540 return Z80_IYL;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1541 default:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1542 return Z80_UNUSED;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1543 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1544 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1545
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1546 uint8_t z80_word_reg(uint8_t reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1547 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1548 switch(reg)
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1549 {
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1550 case Z80_B:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1551 case Z80_C:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1552 return Z80_BC;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1553 case Z80_D:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1554 case Z80_E:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1555 return Z80_DE;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1556 case Z80_H:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1557 case Z80_L:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1558 return Z80_HL;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1559 case Z80_IXH:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1560 case Z80_IXL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1561 return Z80_IX;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1562 case Z80_IYH:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1563 case Z80_IYL:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1564 return Z80_IY;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1565 default:
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1566 return Z80_UNUSED;
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1567 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1568 }
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1569
313
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1570 uint8_t z80_is_terminal(z80inst * inst)
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1571 {
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1572 return inst->op == Z80_RET || inst->op == Z80_RETI || inst->op == Z80_RETN || inst->op == Z80_JP
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1573 || inst->op == Z80_JR || inst->op == Z80_HALT || (inst->op == Z80_NOP && inst->immed == 42);
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1574 }
292
b970ea214ecb Added z80 test generator and z80 test runner.
Mike Pavone <pavone@retrodev.com>
parents: 278
diff changeset
1575
313
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1576
a13329645ea3 Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents: 297
diff changeset
1577