Mercurial > sdl-ios-xcode
annotate src/hermes/x86_main.asm @ 4311:1238da4a7112 SDL-1.2
Debian patch: f230_manpages.diff
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 10 Oct 2009 10:09:01 +0000 |
| parents | 540466e900db |
| children |
| 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 | |
|
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eb4d9d99849b
Renamed, per Mike's comment on bug #157
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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14 %include "common.inc" |
| 1871 | 15 |
| 16 SDL_FUNC _ConvertX86 | |
| 0 | 17 |
| 18 SECTION .text | |
| 19 | |
| 20 ;; _ConvertX86: | |
| 21 ;; [ESP+8] ConverterInfo* | |
| 22 ;; -------------------------------------------------------------------------- | |
| 23 ;; ConverterInfo (ebp+..) | |
| 24 ;; 0: void *s_pixels | |
| 25 ;; 4: int s_width | |
| 26 ;; 8: int s_height | |
| 27 ;; 12: int s_add | |
| 28 ;; 16: void *d_pixels | |
| 29 ;; 20: int d_width | |
| 30 ;; 24: int d_height | |
| 31 ;; 28: int d_add | |
| 32 ;; 32: void (*converter_function)() | |
| 33 ;; 36: int32 *lookup | |
| 34 | |
| 35 _ConvertX86: | |
| 36 push ebp | |
| 37 mov ebp,esp | |
| 38 | |
| 39 ; Save the registers used by the blitters, necessary for optimized code | |
| 40 pusha | |
| 41 | |
| 42 mov eax,[ebp+8] | |
| 43 | |
| 44 cmp dword [eax+4],BYTE 0 | |
| 45 je endconvert | |
| 46 | |
| 47 mov ebp,eax | |
| 48 | |
| 49 mov esi,[ebp+0] | |
| 50 mov edi,[ebp+16] | |
| 51 | |
| 52 y_loop: | |
| 53 mov ecx,[ebp+4] | |
| 54 | |
|
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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55 call [ebp+32] |
| 0 | 56 |
| 57 add esi,[ebp+12] | |
| 58 add edi,[ebp+28] | |
| 59 | |
| 60 dec dword [ebp+8] | |
| 61 jnz y_loop | |
| 62 | |
| 63 ; Restore the registers used by the blitters, necessary for optimized code | |
| 64 popa | |
| 65 | |
| 66 pop ebp | |
| 67 | |
| 68 endconvert: | |
| 69 ret | |
| 70 | |
| 71 | |
| 72 | |
|
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2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
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73 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
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74 section .note.GNU-stack noalloc noexec nowrite progbits |
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2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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changeset
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75 %endif |