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Last change
on this file since 21786 was 21783, checked in by dmik, 14 years ago |
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Use underscores for symbols defined in .asm as they are cdecl.
IBM VAC seemed to detect they are ASM and not use underscores
when referencing them from C.
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File size:
4.7 KB
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| 1 | ; $Id: asmutil.asm,v 1.3 2003-03-27 14:13:10 sandervl Exp $
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| 2 |
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| 3 | ;/*
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| 4 | ; * Project Odin Software License can be found in LICENSE.TXT
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| 5 | ; * Win32 Exception handling + misc functions for OS/2
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| 6 | ; *
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| 7 | ; * Copyright 1998 Sander van Leeuwen
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| 8 | ; *
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| 9 | ; */
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| 10 | .386p
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| 11 | NAME except
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| 12 |
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| 13 | DATA32 segment dword use32 public 'DATA'
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| 14 | DATA32 ends
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| 15 | CONST32_RO segment dword use32 public 'CONST'
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| 16 | CONST32_RO ends
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| 17 | BSS32 segment dword use32 public 'BSS'
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| 18 | BSS32 ends
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| 19 | DGROUP group BSS32, DATA32
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| 20 | assume cs:FLAT, ds:FLAT, ss:FLAT, es:FLAT
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| 21 |
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| 22 | extrn Dos32TIB:abs
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| 23 |
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| 24 | CODE32 SEGMENT DWORD PUBLIC USE32 'CODE'
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| 25 |
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| 26 | PUBLIC _getEAX
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| 27 | _getEAX proc near
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| 28 | ret
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| 29 | _getEAX endp
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| 30 |
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| 31 | PUBLIC _getEDX
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| 32 | _getEDX proc near
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| 33 | mov EAX, EDX
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| 34 | ret
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| 35 | _getEDX endp
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| 36 |
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| 37 | PUBLIC _getEBX
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| 38 | _getEBX proc near
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| 39 | mov eax, ebx
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| 40 | ret
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| 41 | _getEBX endp
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| 42 |
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| 43 | IFNDEF __GNUC__
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| 44 |
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| 45 | PUBLIC GetFS
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| 46 | GetFS proc near
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| 47 | mov eax, fs
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| 48 | ret
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| 49 | GetFS endp
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| 50 |
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| 51 | PUBLIC SetFS
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| 52 | SetFS proc near
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| 53 | mov eax, [esp+4]
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| 54 | mov fs, eax
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| 55 | ret
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| 56 | SetFS endp
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| 57 |
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| 58 | ENDIF ; __GNUC__
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| 59 |
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| 60 | PUBLIC _getCS
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| 61 | _getCS proc near
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| 62 | mov eax, cs
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| 63 | ret
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| 64 | _getCS endp
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| 65 |
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| 66 | PUBLIC _getDS
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| 67 | _getDS proc near
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| 68 | mov eax, ds
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| 69 | ret
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| 70 | _getDS endp
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| 71 |
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| 72 | IFNDEF __GNUC__
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| 73 |
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| 74 | PUBLIC SetReturnFS
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| 75 | SetReturnFS proc near
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| 76 | push fs
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| 77 | mov eax, [esp+8]
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| 78 | mov fs, eax
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| 79 | pop eax
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| 80 | ret
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| 81 | SetReturnFS endp
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| 82 |
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| 83 | ENDIF ; __GNUC__
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| 84 |
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| 85 | PUBLIC _getSS
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| 86 | _getSS proc near
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| 87 | mov ax, ss
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| 88 | ret
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| 89 | _getSS endp
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| 90 |
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| 91 | PUBLIC _getES
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| 92 | _getES proc near
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| 93 | mov eax, es
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| 94 | ret
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| 95 | _getES endp
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| 96 |
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| 97 | PUBLIC _getGS
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| 98 | _getGS proc near
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| 99 | mov eax, gs
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| 100 | ret
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| 101 | _getGS endp
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| 102 |
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| 103 | PUBLIC _getESP
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| 104 | _getESP proc near
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| 105 | mov eax, esp
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| 106 | ret
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| 107 | _getESP endp
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| 108 |
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| 109 | IFNDEF __GNUC__
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| 110 |
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| 111 | PUBLIC RestoreOS2FS
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| 112 | RestoreOS2FS proc near
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| 113 | push Dos32TIB
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| 114 | mov ax, fs
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| 115 | pop fs
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| 116 | ret
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| 117 | RestoreOS2FS endp
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| 118 |
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| 119 | ENDIF ; __GNUC__
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| 120 |
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| 121 | PUBLIC _Mul32x32to64
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| 122 | _Mul32x32to64 proc near
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| 123 | push ebp
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| 124 | mov ebp, esp
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| 125 | push eax
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| 126 | push edx
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| 127 | push edi
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| 128 |
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| 129 | mov edi, [ebp+8] ;64 bits result
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| 130 | mov eax, [ebp+12] ;op1
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| 131 | mov edx, [ebp+16] ;op2
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| 132 | mul edx
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| 133 | mov [edi], eax
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| 134 | mov [edi+4], edx
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| 135 |
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| 136 | pop edi
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| 137 | pop edx
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| 138 | pop eax
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| 139 | pop ebp
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| 140 | ret
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| 141 | _Mul32x32to64 endp
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| 142 |
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| 143 | align 4h
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| 144 |
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| 145 | public _Sub64
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| 146 | _Sub64 proc
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| 147 |
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| 148 | ; 34 c = a - b;
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| 149 | push ebp
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| 150 | mov ebp, esp
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| 151 | push esi
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| 152 | push edi
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| 153 | push edx
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| 154 |
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| 155 | mov edi, [ebp+10h] ;&c
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| 156 | mov esi, [ebp+08h] ;&a
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| 157 | mov eax,[esi] ;a.low
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| 158 | mov edx,[esi+04h] ;a.high
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| 159 | mov esi, [ebp+0ch] ;&b
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| 160 | sub eax,[esi] ;b.low
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| 161 | sbb edx,[esi+04h] ;b.high
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| 162 |
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| 163 | mov [edi], eax ;c.low
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| 164 | mov [edi+4], edx ;c.high
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| 165 |
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| 166 | pop edx
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| 167 | pop edi
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| 168 | pop esi
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| 169 | leave
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| 170 | ret
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| 171 | _Sub64 endp
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| 172 |
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| 173 | align 4h
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| 174 |
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| 175 | public _Add64
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| 176 | _Add64 proc
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| 177 |
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| 178 | ; 25 c = a + b;
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| 179 | push ebp
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| 180 | mov ebp, esp
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| 181 | push esi
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| 182 | push edi
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| 183 | push edx
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| 184 |
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| 185 | mov edi, [ebp+10h] ;&c
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| 186 | mov esi, [ebp+08h] ;&a
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| 187 | mov eax,[esi] ;a.low
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| 188 | mov edx,[esi+04h] ;a.high
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| 189 | mov esi, [ebp+0ch] ;&b
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| 190 | add eax,[esi] ;b.low
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| 191 | adc edx,[esi+04h] ;b.high
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| 192 |
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| 193 | mov [edi], eax ;c.low
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| 194 | mov [edi+4], edx ;c.high
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| 195 |
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| 196 | pop edx
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| 197 | pop edi
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| 198 | pop esi
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| 199 | leave
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| 200 | ret
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| 201 |
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| 202 | _Add64 endp
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| 203 |
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| 204 |
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| 205 | align 4h
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| 206 |
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| 207 | public _set_bit
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| 208 | ;void CDECL set_bit(int bitnr, void *addr);
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| 209 | _set_bit proc near
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| 210 | push esi
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| 211 |
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| 212 | mov esi, [esp+12]
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| 213 | mov eax, [esp+8]
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| 214 |
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| 215 | bts dword ptr [esi], eax
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| 216 |
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| 217 | pop esi
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| 218 | ret
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| 219 | _set_bit endp
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| 220 |
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| 221 | align 4h
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| 222 |
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| 223 | public _test_bit
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| 224 | ;int CDECL test_bit(int bitnr, void *addr);
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| 225 | _test_bit proc near
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| 226 | push esi
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| 227 |
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| 228 | mov esi, [esp+12]
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| 229 | mov eax, [esp+8]
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| 230 |
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| 231 | bt dword ptr [esi], eax
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| 232 | setc al
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| 233 | movzx eax, al
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| 234 |
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| 235 | pop esi
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| 236 | ret
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| 237 | _test_bit endp
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| 238 |
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| 239 | public _clear_bit
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| 240 | ;void CDECL clear_bit(int bitnr, void *addr);
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| 241 | _clear_bit proc near
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| 242 | push esi
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| 243 |
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| 244 | mov esi, [esp+12]
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| 245 | mov eax, [esp+8]
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| 246 |
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| 247 | btr dword ptr [esi], eax
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| 248 |
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| 249 | pop esi
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| 250 | ret
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| 251 | _clear_bit endp
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| 252 |
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| 253 | rdtsc macro
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| 254 | db 0Fh, 31h
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| 255 | endm
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| 256 |
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| 257 | public GetPentiumTSC
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| 258 | GetPentiumTSC proc near
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| 259 | mov ecx , [esp + 4]
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| 260 | rdtsc
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| 261 | mov [ecx] , eax
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| 262 | mov [ecx + 4] , edx
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| 263 | xor eax , eax
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| 264 | ret
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| 265 | GetPentiumTSC endp
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| 266 |
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| 267 | CODE32 ENDS
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| 268 |
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| 269 | END
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