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annotate z80inst.c @ 199:69585e7d474f

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Add initial stab at Z80 decoder and disassembler
author Mike Pavone <pavone@retrodev.com>
date Sun, 20 Jan 2013 19:11:24 -0800
parents
children d3066ceb29d1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
199
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
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diff changeset
1 #include "z80inst.h"
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
2 #include <string.h>
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
3 #include <stdio.h>
69585e7d474f Add initial stab at Z80 decoder and disassembler
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4
69585e7d474f Add initial stab at Z80 decoder and disassembler
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5 z80inst z80_tbl_a[256] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
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6 //0
69585e7d474f Add initial stab at Z80 decoder and disassembler
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7 {Z80_NOP, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
8 {Z80_LD, Z80_BC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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9 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
10 {Z80_INC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
11 {Z80_INC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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12 {Z80_DEC, Z80_B, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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13 {Z80_LD, Z80_B, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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14 {Z80_RLC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
15 {Z80_EX, Z80_AF, Z80_REG, Z80_AF, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
16 {Z80_ADD, Z80_HL, Z80_REG, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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17 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_BC, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
18 {Z80_DEC, Z80_BC, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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19 {Z80_INC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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20 {Z80_DEC, Z80_C, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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21 {Z80_LD, Z80_C, Z80_IMMED, Z80_UNUSED, 0},
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22 {Z80_RRC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
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23 //1
69585e7d474f Add initial stab at Z80 decoder and disassembler
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24 {Z80_DJNZ, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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25 {Z80_LD, Z80_DE, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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26 {Z80_LD, Z80_A, Z80_REG_INDIRECT | Z80_DIR, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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27 {Z80_INC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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28 {Z80_INC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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29 {Z80_DEC, Z80_D, Z80_UNUSED, Z80_UNUSED, 0},
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30 {Z80_LD, Z80_D, Z80_IMMED, Z80_UNUSED, 0},
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31 {Z80_RL, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
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32 {Z80_JR, Z80_UNUSED, Z80_IMMED, Z80_UNUSED, 0},
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33 {Z80_ADD, Z80_HL, Z80_REG, Z80_DE, 0},
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34 {Z80_LD, Z80_A, Z80_REG_INDIRECT, Z80_DE, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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35 {Z80_DEC, Z80_DE, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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36 {Z80_INC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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37 {Z80_DEC, Z80_E, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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38 {Z80_LD, Z80_E, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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39 {Z80_RR, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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40 //2
69585e7d474f Add initial stab at Z80 decoder and disassembler
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41 {Z80_JRCC, Z80_CC_NZ, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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42 {Z80_LD, Z80_HL, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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43 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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44 {Z80_INC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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45 {Z80_INC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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46 {Z80_DEC, Z80_H, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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47 {Z80_LD, Z80_H, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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48 {Z80_DAA, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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49 {Z80_JRCC, Z80_CC_Z, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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50 {Z80_ADD, Z80_HL, Z80_REG, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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51 {Z80_LD, Z80_HL, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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52 {Z80_DEC, Z80_HL, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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53 {Z80_INC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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54 {Z80_DEC, Z80_L, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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55 {Z80_LD, Z80_L, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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56 {Z80_CPL, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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57 //3
69585e7d474f Add initial stab at Z80 decoder and disassembler
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58 {Z80_JRCC, Z80_CC_NC, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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59 {Z80_LD, Z80_SP, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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60 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT | Z80_DIR, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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61 {Z80_INC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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62 {Z80_INC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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63 {Z80_DEC, Z80_UNUSED, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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64 {Z80_LD, Z80_USE_IMMED, Z80_REG_INDIRECT | Z80_DIR, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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65 {Z80_SCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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66 {Z80_JRCC, Z80_CC_C, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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67 {Z80_ADD, Z80_HL, Z80_REG, Z80_SP, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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68 {Z80_LD, Z80_A, Z80_IMMED_INDIRECT, Z80_IMMED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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69 {Z80_DEC, Z80_SP, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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70 {Z80_INC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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71 {Z80_DEC, Z80_A, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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72 {Z80_LD, Z80_A, Z80_IMMED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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73 {Z80_CCF, Z80_UNUSED, Z80_UNUSED, Z80_UNUSED, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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74 //4
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75 {Z80_LD, Z80_B, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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76 {Z80_LD, Z80_B, Z80_REG, Z80_C, 0},
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77 {Z80_LD, Z80_B, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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78 {Z80_LD, Z80_B, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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79 {Z80_LD, Z80_B, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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80 {Z80_LD, Z80_B, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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81 {Z80_LD, Z80_B, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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82 {Z80_LD, Z80_B, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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83 {Z80_LD, Z80_C, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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84 {Z80_LD, Z80_C, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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85 {Z80_LD, Z80_C, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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86 {Z80_LD, Z80_C, Z80_REG, Z80_E, 0},
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87 {Z80_LD, Z80_C, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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88 {Z80_LD, Z80_C, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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89 {Z80_LD, Z80_C, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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90 {Z80_LD, Z80_C, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
91 //5
69585e7d474f Add initial stab at Z80 decoder and disassembler
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92 {Z80_LD, Z80_D, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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93 {Z80_LD, Z80_D, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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94 {Z80_LD, Z80_D, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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95 {Z80_LD, Z80_D, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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96 {Z80_LD, Z80_D, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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97 {Z80_LD, Z80_D, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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98 {Z80_LD, Z80_D, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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99 {Z80_LD, Z80_D, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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100 {Z80_LD, Z80_E, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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101 {Z80_LD, Z80_E, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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102 {Z80_LD, Z80_E, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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103 {Z80_LD, Z80_E, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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104 {Z80_LD, Z80_E, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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105 {Z80_LD, Z80_E, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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parents:
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106 {Z80_LD, Z80_E, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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107 {Z80_LD, Z80_E, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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108 //6
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109 {Z80_LD, Z80_H, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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110 {Z80_LD, Z80_H, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
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diff changeset
111 {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
112 {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
113 {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
114 {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
115 {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
116 {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
117 {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
118 {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
119 {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
120 {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
121 {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
122 {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
123 {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
124 {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
125 //7
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
126 {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
127 {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
128 {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
129 {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
130 {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
131 {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
132 {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
133 {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
134 {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
135 {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
136 {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
137 {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
138 {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
139 {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
140 {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
141 {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
142 //8
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 {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
144 {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
145 {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
146 {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
147 {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
148 {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
149 {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
150 {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
151 {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
152 {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
153 {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
154 {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
155 {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
156 {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
157 {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
158 {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
159 //9
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
160 {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
161 {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
162 {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
163 {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
164 {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
165 {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
166 {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
167 {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
168 {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
169 {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
170 {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
171 {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
172 {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
173 {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
174 {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
175 {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
176 //A
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
177 {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
178 {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
179 {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
180 {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
181 {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
182 {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
183 {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
184 {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
185 {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
186 {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
187 {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
188 {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
189 {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
190 {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
191 {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
192 {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
193 //B
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
194 {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
195 {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
196 {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
197 {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
198 {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
199 {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
200 {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
201 {Z80_OR, 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 {Z80_OR, Z80_CP, Z80_REG, Z80_B, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
203 {Z80_OR, Z80_CP, Z80_REG, Z80_C, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
204 {Z80_OR, Z80_CP, Z80_REG, Z80_D, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
205 {Z80_OR, Z80_CP, Z80_REG, Z80_E, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
206 {Z80_OR, Z80_CP, Z80_REG, Z80_H, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
207 {Z80_OR, Z80_CP, Z80_REG, Z80_L, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
208 {Z80_OR, Z80_CP, Z80_REG_INDIRECT, Z80_HL, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
209 {Z80_OR, Z80_CP, Z80_REG, Z80_A, 0},
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
210 //C
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
211 {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
212 {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
213 {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
214 {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
215 {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
216 {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
217 {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
218 {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
219 {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
220 {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
221 {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
222 {0, 0, 0, 0, 0},//BITS Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
223 {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
224 {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
225 {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
226 {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
227 //D
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
228 {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
229 {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
230 {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
231 {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
232 {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
233 {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
234 {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
235 {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
236 {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
237 {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
238 {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
239 {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
240 {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
241 {0, 0, 0, 0, 0},//IX Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
242 {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
243 {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
244 //E
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
245 {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
246 {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
247 {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
248 {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
249 {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
250 {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
251 {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
252 {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
253 {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
254 {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
255 {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
256 {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
257 {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
258 {0, 0, 0, 0, 0},//EXTD Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
259 {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
260 {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
261 //F
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
262 {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
263 {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
264 {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
265 {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
266 {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
267 {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
268 {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
269 {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
270 {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
271 {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
272 {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
273 {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
274 {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
275 {0, 0, 0, 0, 0},//IY Prefix
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
276 {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
277 {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
278 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
279
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
280 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
281 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
282 if (*istream == 0xCB) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
283 } else if (*istream == 0xDD) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
284 } else if (*istream == 0xED) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
285 } else if (*istream == 0xFD) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
286 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
287 memcpy(decoded, z80_tbl_a + *istream, sizeof(z80inst));
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
288 if (decoded->addr_mode == Z80_IMMED && decoded->op != Z80_RST) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
289 decoded->immed = *(++istream);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
290 if (decoded->reg >= Z80_BC) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
291 decoded->immed |= *(++istream) << 8;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
292 } else if (decoded->immed & 0x80) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
293 decoded->immed |= 0xFF00;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
294 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
295 } else if (decoded->addr_mode == Z80_IMMED_INDIRECT) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
296 decoded->immed = *(++istream);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
297 if (decoded->op != Z80_OUT && decoded->op != Z80_IN) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
298 decoded->immed |= *(++istream) << 8;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
299 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
300 } else if (decoded->reg == Z80_USE_IMMED) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
301 decoded->immed = *(++istream);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
302 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
303 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
304 return istream+1;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
305 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
306
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
307 char *z80_mnemonics[Z80_OTDR+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
308 "ld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
309 "push",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
310 "pop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
311 "ex",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
312 "exx",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
313 "ldi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
314 "ldir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
315 "ldd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
316 "lddr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
317 "cpi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
318 "cpir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
319 "cpd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
320 "cpdr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
321 "add",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
322 "adc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
323 "sub",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
324 "sbc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
325 "and",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
326 "or",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
327 "xor",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
328 "cp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
329 "inc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
330 "dec",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
331 "daa",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
332 "cpl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
333 "neg",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
334 "ccf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
335 "scf",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
336 "nop",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
337 "halt",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
338 "di",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
339 "ei",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
340 "im",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
341 "rlc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
342 "rl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
343 "rrc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
344 "rr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
345 "sl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
346 "rld",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
347 "rrd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
348 "bit",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
349 "set",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
350 "res",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
351 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
352 "jp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
353 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
354 "jr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
355 "djnz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
356 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
357 "call",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
358 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
359 "ret",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
360 "reti",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
361 "retn",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
362 "rst",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
363 "in",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
364 "ini",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
365 "inir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
366 "indr",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
367 "out",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
368 "outi",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
369 "otir",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
370 "outd",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
371 "otdr"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
372 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
373
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
374 char * z80_regs[Z80_USE_IMMED] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
375 "b",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
376 "c",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
377 "d",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
378 "e",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
379 "h",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
380 "l",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
381 "",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
382 "a",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
383 "bc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
384 "de",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
385 "hl",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
386 "sp",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
387 "af",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
388 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
389
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
390 char * z80_conditions[Z80_CC_M+1] = {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
391 "nz",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
392 "z",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
393 "nc",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
394 "c",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
395 "po",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
396 "pe",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
397 "p",
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
398 "m"
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
399 };
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
400
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
401 int z80_disasm(z80inst * decoded, char * dst)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
402 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
403 int len = sprintf(dst, "%s", z80_mnemonics[decoded->op]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
404 if (decoded->addr_mode & Z80_DIR) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
405 switch (decoded->addr_mode)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
406 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
407 case Z80_REG:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
408 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
409 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
410 case Z80_REG_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
411 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
412 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
413 case Z80_IMMED:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
414 len += sprintf(dst+len, " %d", decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
415 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
416 case Z80_IMMED_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
417 len += sprintf(dst+len, " (%d)", decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
418 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
419 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
420 if (decoded->reg != Z80_UNUSED) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
421 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
422 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_conditions[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
423 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
424 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
425 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
426 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
427 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
428 if (decoded->reg != Z80_UNUSED) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
429 if (decoded->op == Z80_JRCC || decoded->op == Z80_JPCC || decoded->op == Z80_CALLCC || decoded->op == Z80_RETCC) {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
430 len += sprintf(dst+len, " %s", z80_conditions[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
431 } else {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
432 len += sprintf(dst+len, " %s", z80_regs[decoded->reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
433 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
434 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
435 switch (decoded->addr_mode)
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
436 {
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
437 case Z80_REG:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
438 len += sprintf(dst+len, "%s %s", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
439 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
440 case Z80_REG_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
441 len += sprintf(dst+len, "%s (%s)", decoded->reg == Z80_UNUSED ? "" : "," , z80_regs[decoded->ea_reg]);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
442 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
443 case Z80_IMMED:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
444 len += sprintf(dst+len, "%s %d", decoded->reg == Z80_UNUSED ? "" : "," , decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
445 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
446 case Z80_IMMED_INDIRECT:
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
447 len += sprintf(dst+len, "%s (%d)", decoded->reg == Z80_UNUSED ? "" : "," , decoded->immed);
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
448 break;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
449 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
450 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
451 return len;
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
452 }
69585e7d474f Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
453