Mercurial > repos > blastem

annotate runtime_32.S @ 558:dc9f178085a0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use a typedef code_ptr in place of uint8_t * in 68K core to better support host instruction sets with different instruction word sizes. Make x86_68k_options contain a cpu_options so that gen_mem_fun can eventually be shared with the Z80 core.
author Mike Pavone <pavone@retrodev.com>
date Mon, 24 Feb 2014 01:30:16 -0800
parents 96489fb27dbf
children 5a6ff0d76032
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
550
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3 invalid_msg:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
4 .asciz "Invalid instruction at %X\n"
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
5
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
6 .global m68k_invalid
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
7 m68k_invalid:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
8 push %ecx
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
9 push invalid_msg
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
10 xor %eax, %eax
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
11 call printf
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
12 push $1
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
13 call exit
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
14
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
15 .global bcd_add
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
16 bcd_add:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
17 xchg %eax, %edi
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
18
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
19 mov %cl, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
20 mov %al, %ah
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
21 and $0xF, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
22 and $0xF, %ah
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
23 and $0xF0, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
24 and $0xF0, %al
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
25 add %ah, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
26 cmp $10, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
27 jb no_adjust
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
28 add $6, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
29 no_adjust:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
30 add %ch, %al
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
31 add %al, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
32 mov $0, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
33 jc def_adjust
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
34 cmp $0xA0, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
35 jb no_adjust_h
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
36 def_adjust:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
37 add $0x60, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
38 mov $1, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
39 no_adjust_h:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
40
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
41 mov %edi, %eax
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
42 ret
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
43
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
44 .global bcd_sub
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
45 bcd_sub:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
46 xchg %eax, %edi
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
47
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
48 mov %cl, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
49 mov %al, %ah
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
50 and $0xF, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
51 and $0xF, %ah
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
52 and $0xF0, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
53 and $0xF0, %al
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
54 sub %ah, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
55 cmp $10, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
56 jb no_adjusts
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
57 sub $6, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
58 no_adjusts:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
59 add %ch, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
60 sub %al, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
61 mov $0, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
62 jc def_adjusts
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
63 cmp $0xA0, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
64 jb no_adjust_hs
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
65 def_adjusts:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
66 sub $0x60, %cl
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
67 mov $1, %ch
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
68 no_adjust_hs:
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
69
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
70 mov %edi, %eax
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
71 ret
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
72
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
73
96489fb27dbf Apart from the Z80 core, BlastEm now supports 32-bit x86
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
74