Mercurial > repos > blastem
annotate zdis.c @ 950:938c72a2f7a9
Initial work on pause menu
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Mon, 11 Apr 2016 20:56:48 -0700 |
parents | a634ed0a92cf |
children | 137dbd05ceab |
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 |
140af5509ce7
Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents:
314
diff
changeset
|
3 This file is part of BlastEm. |
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 <stdio.h> |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 #include <stdlib.h> |
805 | 9 #include <stdarg.h> |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 uint8_t visited[(64*1024)/8]; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
12 uint8_t label[(64*1024)/8]; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
13 |
805 | 14 void fatal_error(char *format, ...) |
15 { | |
16 va_list args; | |
17 va_start(args, format); | |
18 vfprintf(stderr, format, args); | |
19 va_end(args); | |
20 exit(1); | |
21 } | |
22 | |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
23 void visit(uint16_t address) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
24 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
25 visited[address/8] |= 1 << (address % 8); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
26 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
27 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
28 void reference(uint16_t address) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
29 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
30 //printf("referenced: %X\n", address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
31 label[address/8] |= 1 << (address % 8); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
32 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
33 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
34 uint8_t is_visited(uint16_t address) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
35 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
36 return visited[address/8] & (1 << (address % 8)); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
37 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
38 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
39 uint8_t is_label(uint16_t address) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
40 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
41 return label[address/8] & (1 << (address % 8)); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
42 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
43 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
44 typedef struct deferred { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
45 uint16_t address; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
46 struct deferred *next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
47 } deferred; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
48 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
49 deferred * defer(uint16_t address, deferred * next) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
50 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
51 if (is_visited(address)) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
52 return next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
53 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
54 //printf("deferring %X\n", address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
55 deferred * d = malloc(sizeof(deferred)); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
56 d->address = address; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
57 d->next = next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
58 return d; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
59 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
60 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
61 uint8_t labels = 0; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
62 uint8_t addr = 0; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
63 uint8_t only = 0; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
64 |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
65 int main(int argc, char ** argv) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
66 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
67 long filesize; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
68 uint8_t *filebuf; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
69 char disbuf[1024]; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
70 z80inst instbuf; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
71 uint8_t * cur; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
72 FILE * f = fopen(argv[1], "rb"); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
73 fseek(f, 0, SEEK_END); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
74 filesize = ftell(f); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
75 fseek(f, 0, SEEK_SET); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
76 filebuf = malloc(filesize); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
77 fread(filebuf, 1, filesize, f); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
78 fclose(f); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
79 deferred *def = NULL, *tmpd; |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
80 uint16_t offset = 0; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
81 for(uint8_t opt = 2; opt < argc; ++opt) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
82 if (argv[opt][0] == '-') { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
83 FILE * address_log; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
84 switch (argv[opt][1]) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
85 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
86 case 'l': |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
87 labels = 1; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
88 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
89 case 'a': |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
90 addr = 1; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
91 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
92 case 'o': |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
93 only = 1; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
94 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
95 case 'f': |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
96 opt++; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
97 if (opt >= argc) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
98 fputs("-f must be followed by a filename\n", stderr); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
99 exit(1); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
100 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
101 address_log = fopen(argv[opt], "r"); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
102 if (!address_log) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
103 fprintf(stderr, "Failed to open %s for reading\n", argv[opt]); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
104 exit(1); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
105 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
106 while (fgets(disbuf, sizeof(disbuf), address_log)) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
107 if (disbuf[0]) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
108 uint16_t address = strtol(disbuf, NULL, 16); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
109 if (address) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
110 def = defer(address, def); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
111 reference(address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
112 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
113 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
114 } |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
115 break; |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
116 case 's': |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
117 opt++; |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
118 if (opt >= argc) { |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
119 fputs("-s must be followed by a start offset in hex\n", stderr); |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
120 exit(1); |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
121 } |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
122 offset = strtol(argv[opt], NULL, 16); |
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
123 break; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
124 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
125 } else { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
126 uint16_t address = strtol(argv[opt], NULL, 16); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
127 def = defer(address, def); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
128 reference(address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
129 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
130 } |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
131 uint16_t start = offset; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
132 uint8_t *encoded, *next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
133 uint32_t size; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
134 if (!def || !only) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
135 def = defer(start, def); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
136 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
137 uint16_t address; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
138 while(def) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
139 do { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
140 encoded = NULL; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
141 address = def->address; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
142 if (!is_visited(address)) { |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
143 encoded = filebuf + address - offset; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
144 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
145 tmpd = def; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
146 def = def->next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
147 free(tmpd); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
148 } while(def && encoded == NULL); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
149 if (!encoded) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
150 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
151 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
152 for(;;) { |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
153 if ((address - offset) > filesize || is_visited(address) || address < offset) { |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
154 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
155 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
156 visit(address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
157 next = z80_decode(encoded, &instbuf); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
158 address += (next-encoded); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
159 encoded = next; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
160 |
258
852b8765bba6
Fix infinite loop in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents:
199
diff
changeset
|
161 //z80_disasm(&instbuf, disbuf); |
852b8765bba6
Fix infinite loop in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents:
199
diff
changeset
|
162 //printf("%X: %s\n", address, disbuf); |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
163 switch (instbuf.op) |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
164 { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
165 case Z80_JR: |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
166 address += instbuf.immed; |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
167 encoded = filebuf + address - offset; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
168 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
169 case Z80_JRCC: |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
170 reference(address + instbuf.immed); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
171 def = defer(address + instbuf.immed, def); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
172 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
173 case Z80_JP: |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
174 address = instbuf.immed; |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
175 encoded = filebuf + address - offset; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
176 break; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
177 case Z80_JPCC: |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
178 case Z80_CALL: |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
179 case Z80_CALLCC: |
313
a13329645ea3
Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents:
258
diff
changeset
|
180 case Z80_RST: |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
181 reference(instbuf.immed); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
182 def = defer(instbuf.immed, def); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
183 break; |
313
a13329645ea3
Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents:
258
diff
changeset
|
184 default: |
a13329645ea3
Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents:
258
diff
changeset
|
185 if (z80_is_terminal(&instbuf)) { |
a13329645ea3
Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents:
258
diff
changeset
|
186 address = filesize + 1; |
a13329645ea3
Fix terminal instruction detection in disassembler
Mike Pavone <pavone@retrodev.com>
parents:
258
diff
changeset
|
187 } |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
188 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
189 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
190 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
191 if (labels) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
192 for (address = filesize; address < (64*1024); address++) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
193 if (is_label(address)) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
194 printf("ADR_%X equ $%X\n", address, address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
195 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
196 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
197 puts(""); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
198 } |
818
a634ed0a92cf
Small fix to start offset support in Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
817
diff
changeset
|
199 for (address = offset; address < filesize + offset; address++) { |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
200 if (is_visited(address)) { |
817
e95978c0988c
Added a -s paramter for specifying a start offset in the Z80 disassembler
Michael Pavone <pavone@retrodev.com>
parents:
805
diff
changeset
|
201 encoded = filebuf + address - offset; |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
202 z80_decode(encoded, &instbuf); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
203 if (labels) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
204 /*m68k_disasm_labels(&instbuf, disbuf); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
205 if (is_label(instbuf.address)) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
206 printf("ADR_%X:\n", instbuf.address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
207 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
208 if (addr) { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
209 printf("\t%s\t;%X\n", disbuf, instbuf.address); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
210 } else { |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
211 printf("\t%s\n", disbuf); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
212 }*/ |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
213 } else { |
314
54c0e5f22198
Show absolute addresses for JR, JRCC and DJNZ in Z80 disassembler
Mike Pavone <pavone@retrodev.com>
parents:
313
diff
changeset
|
214 z80_disasm(&instbuf, disbuf, address); |
199
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
215 printf("%X: %s\n", address, disbuf); |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
216 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
217 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
218 } |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
219 return 0; |
69585e7d474f
Add initial stab at Z80 decoder and disassembler
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
220 } |