Mercurial > sdl-ios-xcode
annotate src/hermes/mmx_main.asm @ 1622:5bbfc3e20e10
Fixed bug #191
[I opted to go for a warning, since I often tweak configure.in, but don't want to rebuild the entire project]
One thing that was lost in the switch from automake to the new build system is
that there is now no rule to build configure from configure.in.
IMHO, if configure.in gets changed, then at the very least, the build system
should print out a warning (better, again IMHO, an error) about this fact.
Else, you easily forget about this when modifying configure.in.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 13 Apr 2006 13:23:56 +0000 |
| parents | 2d6dc7de1145 |
| children | 393092a3ebf6 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; mmx format converter main loops for HERMES | |
| 3 ; Some routines Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) | |
| 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 | |
| 10 BITS 32 | |
| 11 | |
| 12 GLOBAL _ConvertMMX | |
| 13 GLOBAL _mmxreturn | |
| 14 | |
| 15 SECTION .text | |
| 16 | |
| 17 ;; _ConvertMMX: | |
| 18 ;; [ESP+8] ConverterInfo* | |
| 19 ;; -------------------------------------------------------------------------- | |
| 20 ;; ConverterInfo (ebp+..) | |
| 21 ;; 0: void *s_pixels | |
| 22 ;; 4: int s_width | |
| 23 ;; 8: int s_height | |
| 24 ;; 12: int s_add | |
| 25 ;; 16: void *d_pixels | |
| 26 ;; 20: int d_width | |
| 27 ;; 24: int d_height | |
| 28 ;; 28: int d_add | |
| 29 ;; 32: void (*converter_function)() | |
| 30 ;; 36: int32 *lookup | |
| 31 | |
| 32 _ConvertMMX: | |
| 33 push ebp | |
| 34 mov ebp,esp | |
| 35 | |
| 36 ; Save the registers used by the blitters, necessary for optimized code | |
| 37 pusha | |
| 38 | |
| 39 mov eax,[ebp+8] | |
| 40 | |
| 41 cmp dword [eax+4],BYTE 0 | |
| 42 je endconvert | |
| 43 | |
| 44 mov ebp,eax | |
| 45 | |
| 46 mov esi,[ebp+0] | |
| 47 mov edi,[ebp+16] | |
| 48 | |
| 49 y_loop: | |
| 50 mov ecx,[ebp+4] | |
| 51 | |
| 52 jmp [ebp+32] | |
| 53 | |
| 54 _mmxreturn: | |
| 55 add esi,[ebp+12] | |
| 56 add edi,[ebp+28] | |
| 57 | |
| 58 dec dword [ebp+8] | |
| 59 jnz y_loop | |
| 60 | |
| 61 | |
| 62 ; Restore the registers used by the blitters, necessary for optimized code | |
| 63 popa | |
| 64 | |
| 65 pop ebp | |
| 66 | |
| 67 endconvert: | |
| 68 emms | |
| 69 | |
| 70 ret | |
| 71 | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
72 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
73 section .note.GNU-stack noalloc noexec nowrite progbits |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
74 %endif |