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annotate src/hermes/mmx_main.asm @ 1856:21f13c787b46

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Date: Mon, 22 May 2006 01:16:47 -0400 From: Mike Frysinger Subject: [SDL] [patch] fix sed expression in sdl-config just noticed that sdl-config uses '[a-z]' with sed in sdl-config without forcing the locale to C ... this could cause problems with locales where the letter 'z' is not the last letter in the alphabet
author Sam Lantinga <slouken@libsdl.org>
date Tue, 23 May 2006 15:07:56 +0000
parents 2d6dc7de1145
children 393092a3ebf6
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1 ;
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2 ; mmx format converter main loops for HERMES
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3 ; Some routines Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk)
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4 ; This source code is licensed under the GNU LGPL
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5 ;
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6 ; Please refer to the file COPYING.LIB contained in the distribution for
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7 ; licensing conditions
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8 ;
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9
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10 BITS 32
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11
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12 GLOBAL _ConvertMMX
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13 GLOBAL _mmxreturn
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14
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15 SECTION .text
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16
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17 ;; _ConvertMMX:
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18 ;; [ESP+8] ConverterInfo*
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19 ;; --------------------------------------------------------------------------
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20 ;; ConverterInfo (ebp+..)
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21 ;; 0: void *s_pixels
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22 ;; 4: int s_width
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23 ;; 8: int s_height
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24 ;; 12: int s_add
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25 ;; 16: void *d_pixels
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26 ;; 20: int d_width
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27 ;; 24: int d_height
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28 ;; 28: int d_add
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29 ;; 32: void (*converter_function)()
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30 ;; 36: int32 *lookup
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31
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32 _ConvertMMX:
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33 push ebp
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34 mov ebp,esp
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35
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36 ; Save the registers used by the blitters, necessary for optimized code
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37 pusha
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38
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39 mov eax,[ebp+8]
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40
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41 cmp dword [eax+4],BYTE 0
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42 je endconvert
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43
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44 mov ebp,eax
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45
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46 mov esi,[ebp+0]
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47 mov edi,[ebp+16]
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48
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49 y_loop:
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50 mov ecx,[ebp+4]
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51
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52 jmp [ebp+32]
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53
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54 _mmxreturn:
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55 add esi,[ebp+12]
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56 add edi,[ebp+28]
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57
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58 dec dword [ebp+8]
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59 jnz y_loop
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60
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61
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62 ; Restore the registers used by the blitters, necessary for optimized code
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63 popa
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64
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65 pop ebp
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66
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67 endconvert:
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68 emms
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69
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70 ret
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71
1199
2d6dc7de1145 From: Mike Frysinger <vapier@gentoo.org>
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72 %ifidn __OUTPUT_FORMAT__,elf
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73 section .note.GNU-stack noalloc noexec nowrite progbits
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74 %endif