Mercurial > sdl-ios-xcode
annotate src/hermes/x86_main.asm @ 1790:828a17e05192
Date: Mon, 8 May 2006 14:19:30 -0700
From: Bob Ippolito
Subject: SDL trunk (r2346) and Mac OS X
The current state of the trunk doesn't quite compile on Mac OS X,
I've attached a series of patches that gets it to compile and kills a
few warnings.
sdl-trunk-r2346-dlcompat-warnings.diff:
The dlcompat thing is just loaded with incorrect type signatures ..
some of them have changed since 10.2 and others are just flat wrong.
This puts it in sync with the latest headers. People on 10.2 will get
the warnings instead of people with new kits.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 09 May 2006 07:26:58 +0000 |
| parents | 3202d727bb4b |
| children | 393092a3ebf6 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; x86 format converters for HERMES | |
| 3 ; Some routines Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) | |
| 4 ; This source code is licensed under the GNU LGPL | |
| 5 ; | |
| 6 ; Please refer to the file COPYING.LIB contained in the distribution for | |
| 7 ; licensing conditions | |
| 8 ; | |
| 9 ; Most routines are (c) Glenn Fiedler (ptc@gaffer.org), used with permission | |
| 10 ; | |
| 11 | |
| 12 BITS 32 | |
| 13 | |
| 14 GLOBAL _ConvertX86 | |
| 15 GLOBAL _x86return | |
| 16 | |
| 17 GLOBAL _Hermes_X86_CPU | |
| 18 | |
| 19 SECTION .text | |
| 20 | |
| 21 ;; _ConvertX86: | |
| 22 ;; [ESP+8] ConverterInfo* | |
| 23 ;; -------------------------------------------------------------------------- | |
| 24 ;; ConverterInfo (ebp+..) | |
| 25 ;; 0: void *s_pixels | |
| 26 ;; 4: int s_width | |
| 27 ;; 8: int s_height | |
| 28 ;; 12: int s_add | |
| 29 ;; 16: void *d_pixels | |
| 30 ;; 20: int d_width | |
| 31 ;; 24: int d_height | |
| 32 ;; 28: int d_add | |
| 33 ;; 32: void (*converter_function)() | |
| 34 ;; 36: int32 *lookup | |
| 35 | |
| 36 _ConvertX86: | |
| 37 push ebp | |
| 38 mov ebp,esp | |
| 39 | |
| 40 ; Save the registers used by the blitters, necessary for optimized code | |
| 41 pusha | |
| 42 | |
| 43 mov eax,[ebp+8] | |
| 44 | |
| 45 cmp dword [eax+4],BYTE 0 | |
| 46 je endconvert | |
| 47 | |
| 48 mov ebp,eax | |
| 49 | |
| 50 mov esi,[ebp+0] | |
| 51 mov edi,[ebp+16] | |
| 52 | |
| 53 y_loop: | |
| 54 mov ecx,[ebp+4] | |
| 55 | |
| 56 jmp [ebp+32] | |
| 57 | |
| 58 _x86return: | |
| 59 add esi,[ebp+12] | |
| 60 add edi,[ebp+28] | |
| 61 | |
| 62 dec dword [ebp+8] | |
| 63 jnz y_loop | |
| 64 | |
| 65 ; Restore the registers used by the blitters, necessary for optimized code | |
| 66 popa | |
| 67 | |
| 68 pop ebp | |
| 69 | |
| 70 endconvert: | |
| 71 ret | |
| 72 | |
| 73 | |
| 74 | |
| 75 ;; Hermes_X86_CPU returns the CPUID flags in eax | |
| 76 | |
| 77 _Hermes_X86_CPU: | |
| 78 pushfd | |
| 79 pop eax | |
| 80 | |
| 81 mov ecx,eax | |
| 82 | |
| 83 xor eax,040000h | |
| 84 push eax | |
| 85 | |
| 86 popfd | |
| 87 pushfd | |
| 88 | |
| 89 pop eax | |
| 90 xor eax,ecx | |
| 91 jz .L1 ; Processor is 386 | |
| 92 | |
| 93 push ecx | |
| 94 popfd | |
| 95 | |
| 96 mov eax,ecx | |
| 97 xor eax,200000h | |
| 98 | |
| 99 push eax | |
| 100 popfd | |
| 101 pushfd | |
| 102 | |
| 103 pop eax | |
| 104 xor eax,ecx | |
| 105 je .L1 | |
| 106 | |
|
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From Mike Frysinger and/or Gentoo:
Ryan C. Gordon <icculus@icculus.org>
parents:
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107 push ebx |
|
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From Mike Frysinger and/or Gentoo:
Ryan C. Gordon <icculus@icculus.org>
parents:
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108 |
| 0 | 109 mov eax,1 |
| 110 cpuid | |
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Ryan C. Gordon <icculus@icculus.org>
parents:
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111 mov eax,edx |
| 0 | 112 |
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From Mike Frysinger and/or Gentoo:
Ryan C. Gordon <icculus@icculus.org>
parents:
1199
diff
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113 pop ebx |
| 0 | 114 |
| 115 .L1: | |
| 116 ret | |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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117 |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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118 %ifidn __OUTPUT_FORMAT__,elf |
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2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
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119 section .note.GNU-stack noalloc noexec nowrite progbits |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
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120 %endif |