1 | ;/* inffas32.asm is a hand tuned assembler version of inffast.c -- fast decoding
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2 | ; *
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3 | ; * inffas32.asm is derivated from inffas86.c, with translation of assembly code
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4 | ; *
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5 | ; * Copyright (C) 1995-2003 Mark Adler
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6 | ; * For conditions of distribution and use, see copyright notice in zlib.h
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7 | ; *
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8 | ; * Copyright (C) 2003 Chris Anderson <[email protected]>
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9 | ; * Please use the copyright conditions above.
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10 | ; *
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11 | ; * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
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12 | ; * the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
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13 | ; * the moment. I have successfully compiled and tested this code with gcc2.96,
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14 | ; * gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
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15 | ; * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
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16 | ; * enabled. I will attempt to merge the MMX code into this version. Newer
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17 | ; * versions of this and inffast.S can be found at
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18 | ; * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
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19 | ; *
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20 | ; * 2005 : modification by Gilles Vollant
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21 | ; */
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22 | ; For Visual C++ 4.x and higher and ML 6.x and higher
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23 | ; ml.exe is in directory \MASM611C of Win95 DDK
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24 | ; ml.exe is also distributed in http://www.masm32.com/masmdl.htm
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25 | ; and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/
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26 | ;
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27 | ;
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28 | ; compile with command line option
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29 | ; ml /coff /Zi /c /Flinffas32.lst inffas32.asm
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30 |
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31 | ; if you define NO_GZIP (see inflate.h), compile with
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32 | ; ml /coff /Zi /c /Flinffas32.lst /DNO_GUNZIP inffas32.asm
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33 |
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34 |
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35 | ; zlib122sup is 0 fort zlib 1.2.2.1 and lower
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36 | ; zlib122sup is 8 fort zlib 1.2.2.2 and more (with addition of dmax and head
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37 | ; in inflate_state in inflate.h)
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38 | zlib1222sup equ 8
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39 |
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40 |
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41 | IFDEF GUNZIP
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42 | INFLATE_MODE_TYPE equ 11
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43 | INFLATE_MODE_BAD equ 26
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44 | ELSE
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45 | IFNDEF NO_GUNZIP
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46 | INFLATE_MODE_TYPE equ 11
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47 | INFLATE_MODE_BAD equ 26
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48 | ELSE
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49 | INFLATE_MODE_TYPE equ 3
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50 | INFLATE_MODE_BAD equ 17
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51 | ENDIF
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52 | ENDIF
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53 |
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54 |
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55 | ; 75 "inffast.S"
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56 | ;FILE "inffast.S"
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57 |
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58 | ;;;GLOBAL _inflate_fast
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59 |
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60 | ;;;SECTION .text
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61 |
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62 |
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63 |
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64 | .586p
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65 | .mmx
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66 |
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67 | name inflate_fast_x86
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68 | .MODEL FLAT
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69 |
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70 | _DATA segment
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71 | inflate_fast_use_mmx:
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72 | dd 1
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73 |
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74 |
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75 | _TEXT segment
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76 |
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77 |
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78 |
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79 | ALIGN 4
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80 | db 'Fast decoding Code from Chris Anderson'
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81 | db 0
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82 |
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83 | ALIGN 4
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84 | invalid_literal_length_code_msg:
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85 | db 'invalid literal/length code'
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86 | db 0
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87 |
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88 | ALIGN 4
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89 | invalid_distance_code_msg:
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90 | db 'invalid distance code'
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91 | db 0
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92 |
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93 | ALIGN 4
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94 | invalid_distance_too_far_msg:
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95 | db 'invalid distance too far back'
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96 | db 0
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97 |
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98 |
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99 | ALIGN 4
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100 | inflate_fast_mask:
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101 | dd 0
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102 | dd 1
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103 | dd 3
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104 | dd 7
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105 | dd 15
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106 | dd 31
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107 | dd 63
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108 | dd 127
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109 | dd 255
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110 | dd 511
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111 | dd 1023
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112 | dd 2047
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113 | dd 4095
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114 | dd 8191
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115 | dd 16383
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116 | dd 32767
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117 | dd 65535
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118 | dd 131071
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119 | dd 262143
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120 | dd 524287
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121 | dd 1048575
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122 | dd 2097151
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123 | dd 4194303
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124 | dd 8388607
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125 | dd 16777215
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126 | dd 33554431
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127 | dd 67108863
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128 | dd 134217727
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129 | dd 268435455
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130 | dd 536870911
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131 | dd 1073741823
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132 | dd 2147483647
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133 | dd 4294967295
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134 |
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135 |
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136 | mode_state equ 0 ;/* state->mode */
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137 | wsize_state equ (32+zlib1222sup) ;/* state->wsize */
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138 | write_state equ (36+4+zlib1222sup) ;/* state->write */
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139 | window_state equ (40+4+zlib1222sup) ;/* state->window */
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140 | hold_state equ (44+4+zlib1222sup) ;/* state->hold */
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141 | bits_state equ (48+4+zlib1222sup) ;/* state->bits */
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142 | lencode_state equ (64+4+zlib1222sup) ;/* state->lencode */
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143 | distcode_state equ (68+4+zlib1222sup) ;/* state->distcode */
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144 | lenbits_state equ (72+4+zlib1222sup) ;/* state->lenbits */
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145 | distbits_state equ (76+4+zlib1222sup) ;/* state->distbits */
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146 |
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147 |
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148 | ;;SECTION .text
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149 | ; 205 "inffast.S"
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150 | ;GLOBAL inflate_fast_use_mmx
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151 |
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152 | ;SECTION .data
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153 |
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154 |
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155 | ; GLOBAL inflate_fast_use_mmx:object
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156 | ;.size inflate_fast_use_mmx, 4
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157 | ; 226 "inffast.S"
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158 | ;SECTION .text
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159 |
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160 | ALIGN 4
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161 | _inflate_fast proc near
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162 | .FPO (16, 4, 0, 0, 1, 0)
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163 | push edi
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164 | push esi
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165 | push ebp
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166 | push ebx
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167 | pushfd
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168 | sub esp,64
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169 | cld
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170 |
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171 |
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172 |
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173 |
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174 | mov esi, [esp+88]
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175 | mov edi, [esi+28]
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176 |
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177 |
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178 |
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179 |
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180 |
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181 |
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182 |
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183 | mov edx, [esi+4]
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184 | mov eax, [esi+0]
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185 |
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186 | add edx,eax
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187 | sub edx,11
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188 |
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189 | mov [esp+44],eax
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190 | mov [esp+20],edx
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191 |
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192 | mov ebp, [esp+92]
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193 | mov ecx, [esi+16]
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194 | mov ebx, [esi+12]
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195 |
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196 | sub ebp,ecx
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197 | neg ebp
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198 | add ebp,ebx
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199 |
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200 | sub ecx,257
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201 | add ecx,ebx
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202 |
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203 | mov [esp+60],ebx
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204 | mov [esp+40],ebp
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205 | mov [esp+16],ecx
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206 | ; 285 "inffast.S"
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207 | mov eax, [edi+lencode_state]
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208 | mov ecx, [edi+distcode_state]
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209 |
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210 | mov [esp+8],eax
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211 | mov [esp+12],ecx
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212 |
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213 | mov eax,1
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214 | mov ecx, [edi+lenbits_state]
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215 | shl eax,cl
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216 | dec eax
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217 | mov [esp+0],eax
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218 |
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219 | mov eax,1
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220 | mov ecx, [edi+distbits_state]
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221 | shl eax,cl
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222 | dec eax
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223 | mov [esp+4],eax
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224 |
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225 | mov eax, [edi+wsize_state]
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226 | mov ecx, [edi+write_state]
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227 | mov edx, [edi+window_state]
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228 |
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229 | mov [esp+52],eax
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230 | mov [esp+48],ecx
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231 | mov [esp+56],edx
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232 |
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233 | mov ebp, [edi+hold_state]
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234 | mov ebx, [edi+bits_state]
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235 | ; 321 "inffast.S"
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236 | mov esi, [esp+44]
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237 | mov ecx, [esp+20]
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238 | cmp ecx,esi
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239 | ja L_align_long
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240 |
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241 | add ecx,11
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242 | sub ecx,esi
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243 | mov eax,12
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244 | sub eax,ecx
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245 | lea edi, [esp+28]
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246 | rep movsb
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247 | mov ecx,eax
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248 | xor eax,eax
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249 | rep stosb
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250 | lea esi, [esp+28]
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251 | mov [esp+20],esi
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252 | jmp L_is_aligned
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253 |
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254 |
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255 | L_align_long:
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256 | test esi,3
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257 | jz L_is_aligned
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258 | xor eax,eax
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259 | mov al, [esi]
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260 | inc esi
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261 | mov ecx,ebx
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262 | add ebx,8
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263 | shl eax,cl
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264 | or ebp,eax
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265 | jmp L_align_long
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266 |
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267 | L_is_aligned:
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268 | mov edi, [esp+60]
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269 | ; 366 "inffast.S"
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270 | L_check_mmx:
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271 | cmp dword ptr [inflate_fast_use_mmx],2
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272 | je L_init_mmx
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273 | ja L_do_loop
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274 |
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275 | push eax
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276 | push ebx
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277 | push ecx
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278 | push edx
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279 | pushfd
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280 | mov eax, [esp]
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281 | xor dword ptr [esp],0200000h
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282 |
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283 |
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284 |
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285 |
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286 | popfd
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287 | pushfd
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288 | pop edx
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289 | xor edx,eax
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290 | jz L_dont_use_mmx
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291 | xor eax,eax
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292 | cpuid
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293 | cmp ebx,0756e6547h
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294 | jne L_dont_use_mmx
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295 | cmp ecx,06c65746eh
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296 | jne L_dont_use_mmx
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297 | cmp edx,049656e69h
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298 | jne L_dont_use_mmx
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299 | mov eax,1
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300 | cpuid
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301 | shr eax,8
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302 | and eax,15
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303 | cmp eax,6
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304 | jne L_dont_use_mmx
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305 | test edx,0800000h
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306 | jnz L_use_mmx
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307 | jmp L_dont_use_mmx
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308 | L_use_mmx:
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309 | mov dword ptr [inflate_fast_use_mmx],2
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310 | jmp L_check_mmx_pop
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311 | L_dont_use_mmx:
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312 | mov dword ptr [inflate_fast_use_mmx],3
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313 | L_check_mmx_pop:
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314 | pop edx
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315 | pop ecx
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316 | pop ebx
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317 | pop eax
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318 | jmp L_check_mmx
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319 | ; 426 "inffast.S"
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320 | ALIGN 4
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321 | L_do_loop:
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322 | ; 437 "inffast.S"
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323 | cmp bl,15
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324 | ja L_get_length_code
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325 |
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326 | xor eax,eax
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327 | lodsw
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328 | mov cl,bl
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329 | add bl,16
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330 | shl eax,cl
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331 | or ebp,eax
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332 |
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333 | L_get_length_code:
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334 | mov edx, [esp+0]
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335 | mov ecx, [esp+8]
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336 | and edx,ebp
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337 | mov eax, [ecx+edx*4]
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338 |
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339 | L_dolen:
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340 |
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341 |
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342 |
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343 |
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344 |
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345 |
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346 | mov cl,ah
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347 | sub bl,ah
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348 | shr ebp,cl
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349 |
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350 |
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351 |
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352 |
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353 |
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354 |
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355 | test al,al
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356 | jnz L_test_for_length_base
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357 |
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358 | shr eax,16
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359 | stosb
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360 |
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361 | L_while_test:
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362 |
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363 |
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364 | cmp [esp+16],edi
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365 | jbe L_break_loop
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366 |
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367 | cmp [esp+20],esi
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368 | ja L_do_loop
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369 | jmp L_break_loop
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370 |
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371 | L_test_for_length_base:
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372 | ; 502 "inffast.S"
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373 | mov edx,eax
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374 | shr edx,16
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375 | mov cl,al
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376 |
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377 | test al,16
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378 | jz L_test_for_second_level_length
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379 | and cl,15
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380 | jz L_save_len
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381 | cmp bl,cl
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382 | jae L_add_bits_to_len
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383 |
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384 | mov ch,cl
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385 | xor eax,eax
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386 | lodsw
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387 | mov cl,bl
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388 | add bl,16
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389 | shl eax,cl
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390 | or ebp,eax
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391 | mov cl,ch
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392 |
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393 | L_add_bits_to_len:
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394 | mov eax,1
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395 | shl eax,cl
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396 | dec eax
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397 | sub bl,cl
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398 | and eax,ebp
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399 | shr ebp,cl
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400 | add edx,eax
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401 |
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402 | L_save_len:
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403 | mov [esp+24],edx
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404 |
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405 |
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406 | L_decode_distance:
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407 | ; 549 "inffast.S"
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408 | cmp bl,15
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409 | ja L_get_distance_code
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410 |
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411 | xor eax,eax
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412 | lodsw
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413 | mov cl,bl
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414 | add bl,16
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415 | shl eax,cl
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416 | or ebp,eax
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417 |
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418 | L_get_distance_code:
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419 | mov edx, [esp+4]
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420 | mov ecx, [esp+12]
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421 | and edx,ebp
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422 | mov eax, [ecx+edx*4]
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423 |
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424 |
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425 | L_dodist:
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426 | mov edx,eax
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427 | shr edx,16
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428 | mov cl,ah
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429 | sub bl,ah
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430 | shr ebp,cl
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431 | ; 584 "inffast.S"
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432 | mov cl,al
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433 |
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434 | test al,16
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435 | jz L_test_for_second_level_dist
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436 | and cl,15
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437 | jz L_check_dist_one
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438 | cmp bl,cl
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439 | jae L_add_bits_to_dist
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440 |
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441 | mov ch,cl
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442 | xor eax,eax
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443 | lodsw
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444 | mov cl,bl
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445 | add bl,16
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446 | shl eax,cl
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447 | or ebp,eax
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448 | mov cl,ch
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449 |
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450 | L_add_bits_to_dist:
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451 | mov eax,1
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452 | shl eax,cl
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453 | dec eax
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454 | sub bl,cl
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455 | and eax,ebp
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456 | shr ebp,cl
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457 | add edx,eax
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458 | jmp L_check_window
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459 |
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460 | L_check_window:
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461 | ; 625 "inffast.S"
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462 | mov [esp+44],esi
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463 | mov eax,edi
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464 | sub eax, [esp+40]
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465 |
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466 | cmp eax,edx
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467 | jb L_clip_window
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468 |
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469 | mov ecx, [esp+24]
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470 | mov esi,edi
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471 | sub esi,edx
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472 |
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473 | sub ecx,3
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474 | mov al, [esi]
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475 | mov [edi],al
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476 | mov al, [esi+1]
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477 | mov dl, [esi+2]
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478 | add esi,3
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479 | mov [edi+1],al
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480 | mov [edi+2],dl
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481 | add edi,3
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482 | rep movsb
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483 |
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484 | mov esi, [esp+44]
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485 | jmp L_while_test
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486 |
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487 | ALIGN 4
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488 | L_check_dist_one:
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489 | cmp edx,1
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490 | jne L_check_window
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491 | cmp [esp+40],edi
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492 | je L_check_window
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493 |
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494 | dec edi
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495 | mov ecx, [esp+24]
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496 | mov al, [edi]
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497 | sub ecx,3
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498 |
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499 | mov [edi+1],al
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500 | mov [edi+2],al
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501 | mov [edi+3],al
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502 | add edi,4
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503 | rep stosb
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504 |
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505 | jmp L_while_test
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506 |
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507 | ALIGN 4
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508 | L_test_for_second_level_length:
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509 |
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510 |
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511 |
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512 |
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513 | test al,64
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514 | jnz L_test_for_end_of_block
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515 |
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516 | mov eax,1
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517 | shl eax,cl
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518 | dec eax
|
---|
519 | and eax,ebp
|
---|
520 | add eax,edx
|
---|
521 | mov edx, [esp+8]
|
---|
522 | mov eax, [edx+eax*4]
|
---|
523 | jmp L_dolen
|
---|
524 |
|
---|
525 | ALIGN 4
|
---|
526 | L_test_for_second_level_dist:
|
---|
527 |
|
---|
528 |
|
---|
529 |
|
---|
530 |
|
---|
531 | test al,64
|
---|
532 | jnz L_invalid_distance_code
|
---|
533 |
|
---|
534 | mov eax,1
|
---|
535 | shl eax,cl
|
---|
536 | dec eax
|
---|
537 | and eax,ebp
|
---|
538 | add eax,edx
|
---|
539 | mov edx, [esp+12]
|
---|
540 | mov eax, [edx+eax*4]
|
---|
541 | jmp L_dodist
|
---|
542 |
|
---|
543 | ALIGN 4
|
---|
544 | L_clip_window:
|
---|
545 | ; 721 "inffast.S"
|
---|
546 | mov ecx,eax
|
---|
547 | mov eax, [esp+52]
|
---|
548 | neg ecx
|
---|
549 | mov esi, [esp+56]
|
---|
550 |
|
---|
551 | cmp eax,edx
|
---|
552 | jb L_invalid_distance_too_far
|
---|
553 |
|
---|
554 | add ecx,edx
|
---|
555 | cmp dword ptr [esp+48],0
|
---|
556 | jne L_wrap_around_window
|
---|
557 |
|
---|
558 | sub eax,ecx
|
---|
559 | add esi,eax
|
---|
560 | ; 749 "inffast.S"
|
---|
561 | mov eax, [esp+24]
|
---|
562 | cmp eax,ecx
|
---|
563 | jbe L_do_copy1
|
---|
564 |
|
---|
565 | sub eax,ecx
|
---|
566 | rep movsb
|
---|
567 | mov esi,edi
|
---|
568 | sub esi,edx
|
---|
569 | jmp L_do_copy1
|
---|
570 |
|
---|
571 | cmp eax,ecx
|
---|
572 | jbe L_do_copy1
|
---|
573 |
|
---|
574 | sub eax,ecx
|
---|
575 | rep movsb
|
---|
576 | mov esi,edi
|
---|
577 | sub esi,edx
|
---|
578 | jmp L_do_copy1
|
---|
579 |
|
---|
580 | L_wrap_around_window:
|
---|
581 | ; 793 "inffast.S"
|
---|
582 | mov eax, [esp+48]
|
---|
583 | cmp ecx,eax
|
---|
584 | jbe L_contiguous_in_window
|
---|
585 |
|
---|
586 | add esi, [esp+52]
|
---|
587 | add esi,eax
|
---|
588 | sub esi,ecx
|
---|
589 | sub ecx,eax
|
---|
590 |
|
---|
591 |
|
---|
592 | mov eax, [esp+24]
|
---|
593 | cmp eax,ecx
|
---|
594 | jbe L_do_copy1
|
---|
595 |
|
---|
596 | sub eax,ecx
|
---|
597 | rep movsb
|
---|
598 | mov esi, [esp+56]
|
---|
599 | mov ecx, [esp+48]
|
---|
600 | cmp eax,ecx
|
---|
601 | jbe L_do_copy1
|
---|
602 |
|
---|
603 | sub eax,ecx
|
---|
604 | rep movsb
|
---|
605 | mov esi,edi
|
---|
606 | sub esi,edx
|
---|
607 | jmp L_do_copy1
|
---|
608 |
|
---|
609 | L_contiguous_in_window:
|
---|
610 | ; 836 "inffast.S"
|
---|
611 | add esi,eax
|
---|
612 | sub esi,ecx
|
---|
613 |
|
---|
614 |
|
---|
615 | mov eax, [esp+24]
|
---|
616 | cmp eax,ecx
|
---|
617 | jbe L_do_copy1
|
---|
618 |
|
---|
619 | sub eax,ecx
|
---|
620 | rep movsb
|
---|
621 | mov esi,edi
|
---|
622 | sub esi,edx
|
---|
623 |
|
---|
624 | L_do_copy1:
|
---|
625 | ; 862 "inffast.S"
|
---|
626 | mov ecx,eax
|
---|
627 | rep movsb
|
---|
628 |
|
---|
629 | mov esi, [esp+44]
|
---|
630 | jmp L_while_test
|
---|
631 | ; 878 "inffast.S"
|
---|
632 | ALIGN 4
|
---|
633 | L_init_mmx:
|
---|
634 | emms
|
---|
635 |
|
---|
636 |
|
---|
637 |
|
---|
638 |
|
---|
639 |
|
---|
640 | movd mm0,ebp
|
---|
641 | mov ebp,ebx
|
---|
642 | ; 896 "inffast.S"
|
---|
643 | movd mm4,dword ptr [esp+0]
|
---|
644 | movq mm3,mm4
|
---|
645 | movd mm5,dword ptr [esp+4]
|
---|
646 | movq mm2,mm5
|
---|
647 | pxor mm1,mm1
|
---|
648 | mov ebx, [esp+8]
|
---|
649 | jmp L_do_loop_mmx
|
---|
650 |
|
---|
651 | ALIGN 4
|
---|
652 | L_do_loop_mmx:
|
---|
653 | psrlq mm0,mm1
|
---|
654 |
|
---|
655 | cmp ebp,32
|
---|
656 | ja L_get_length_code_mmx
|
---|
657 |
|
---|
658 | movd mm6,ebp
|
---|
659 | movd mm7,dword ptr [esi]
|
---|
660 | add esi,4
|
---|
661 | psllq mm7,mm6
|
---|
662 | add ebp,32
|
---|
663 | por mm0,mm7
|
---|
664 |
|
---|
665 | L_get_length_code_mmx:
|
---|
666 | pand mm4,mm0
|
---|
667 | movd eax,mm4
|
---|
668 | movq mm4,mm3
|
---|
669 | mov eax, [ebx+eax*4]
|
---|
670 |
|
---|
671 | L_dolen_mmx:
|
---|
672 | movzx ecx,ah
|
---|
673 | movd mm1,ecx
|
---|
674 | sub ebp,ecx
|
---|
675 |
|
---|
676 | test al,al
|
---|
677 | jnz L_test_for_length_base_mmx
|
---|
678 |
|
---|
679 | shr eax,16
|
---|
680 | stosb
|
---|
681 |
|
---|
682 | L_while_test_mmx:
|
---|
683 |
|
---|
684 |
|
---|
685 | cmp [esp+16],edi
|
---|
686 | jbe L_break_loop
|
---|
687 |
|
---|
688 | cmp [esp+20],esi
|
---|
689 | ja L_do_loop_mmx
|
---|
690 | jmp L_break_loop
|
---|
691 |
|
---|
692 | L_test_for_length_base_mmx:
|
---|
693 |
|
---|
694 | mov edx,eax
|
---|
695 | shr edx,16
|
---|
696 |
|
---|
697 | test al,16
|
---|
698 | jz L_test_for_second_level_length_mmx
|
---|
699 | and eax,15
|
---|
700 | jz L_decode_distance_mmx
|
---|
701 |
|
---|
702 | psrlq mm0,mm1
|
---|
703 | movd mm1,eax
|
---|
704 | movd ecx,mm0
|
---|
705 | sub ebp,eax
|
---|
706 | and ecx, [inflate_fast_mask+eax*4]
|
---|
707 | add edx,ecx
|
---|
708 |
|
---|
709 | L_decode_distance_mmx:
|
---|
710 | psrlq mm0,mm1
|
---|
711 |
|
---|
712 | cmp ebp,32
|
---|
713 | ja L_get_dist_code_mmx
|
---|
714 |
|
---|
715 | movd mm6,ebp
|
---|
716 | movd mm7,dword ptr [esi]
|
---|
717 | add esi,4
|
---|
718 | psllq mm7,mm6
|
---|
719 | add ebp,32
|
---|
720 | por mm0,mm7
|
---|
721 |
|
---|
722 | L_get_dist_code_mmx:
|
---|
723 | mov ebx, [esp+12]
|
---|
724 | pand mm5,mm0
|
---|
725 | movd eax,mm5
|
---|
726 | movq mm5,mm2
|
---|
727 | mov eax, [ebx+eax*4]
|
---|
728 |
|
---|
729 | L_dodist_mmx:
|
---|
730 |
|
---|
731 | movzx ecx,ah
|
---|
732 | mov ebx,eax
|
---|
733 | shr ebx,16
|
---|
734 | sub ebp,ecx
|
---|
735 | movd mm1,ecx
|
---|
736 |
|
---|
737 | test al,16
|
---|
738 | jz L_test_for_second_level_dist_mmx
|
---|
739 | and eax,15
|
---|
740 | jz L_check_dist_one_mmx
|
---|
741 |
|
---|
742 | L_add_bits_to_dist_mmx:
|
---|
743 | psrlq mm0,mm1
|
---|
744 | movd mm1,eax
|
---|
745 | movd ecx,mm0
|
---|
746 | sub ebp,eax
|
---|
747 | and ecx, [inflate_fast_mask+eax*4]
|
---|
748 | add ebx,ecx
|
---|
749 |
|
---|
750 | L_check_window_mmx:
|
---|
751 | mov [esp+44],esi
|
---|
752 | mov eax,edi
|
---|
753 | sub eax, [esp+40]
|
---|
754 |
|
---|
755 | cmp eax,ebx
|
---|
756 | jb L_clip_window_mmx
|
---|
757 |
|
---|
758 | mov ecx,edx
|
---|
759 | mov esi,edi
|
---|
760 | sub esi,ebx
|
---|
761 |
|
---|
762 | sub ecx,3
|
---|
763 | mov al, [esi]
|
---|
764 | mov [edi],al
|
---|
765 | mov al, [esi+1]
|
---|
766 | mov dl, [esi+2]
|
---|
767 | add esi,3
|
---|
768 | mov [edi+1],al
|
---|
769 | mov [edi+2],dl
|
---|
770 | add edi,3
|
---|
771 | rep movsb
|
---|
772 |
|
---|
773 | mov esi, [esp+44]
|
---|
774 | mov ebx, [esp+8]
|
---|
775 | jmp L_while_test_mmx
|
---|
776 |
|
---|
777 | ALIGN 4
|
---|
778 | L_check_dist_one_mmx:
|
---|
779 | cmp ebx,1
|
---|
780 | jne L_check_window_mmx
|
---|
781 | cmp [esp+40],edi
|
---|
782 | je L_check_window_mmx
|
---|
783 |
|
---|
784 | dec edi
|
---|
785 | mov ecx,edx
|
---|
786 | mov al, [edi]
|
---|
787 | sub ecx,3
|
---|
788 |
|
---|
789 | mov [edi+1],al
|
---|
790 | mov [edi+2],al
|
---|
791 | mov [edi+3],al
|
---|
792 | add edi,4
|
---|
793 | rep stosb
|
---|
794 |
|
---|
795 | mov ebx, [esp+8]
|
---|
796 | jmp L_while_test_mmx
|
---|
797 |
|
---|
798 | ALIGN 4
|
---|
799 | L_test_for_second_level_length_mmx:
|
---|
800 | test al,64
|
---|
801 | jnz L_test_for_end_of_block
|
---|
802 |
|
---|
803 | and eax,15
|
---|
804 | psrlq mm0,mm1
|
---|
805 | movd ecx,mm0
|
---|
806 | and ecx, [inflate_fast_mask+eax*4]
|
---|
807 | add ecx,edx
|
---|
808 | mov eax, [ebx+ecx*4]
|
---|
809 | jmp L_dolen_mmx
|
---|
810 |
|
---|
811 | ALIGN 4
|
---|
812 | L_test_for_second_level_dist_mmx:
|
---|
813 | test al,64
|
---|
814 | jnz L_invalid_distance_code
|
---|
815 |
|
---|
816 | and eax,15
|
---|
817 | psrlq mm0,mm1
|
---|
818 | movd ecx,mm0
|
---|
819 | and ecx, [inflate_fast_mask+eax*4]
|
---|
820 | mov eax, [esp+12]
|
---|
821 | add ecx,ebx
|
---|
822 | mov eax, [eax+ecx*4]
|
---|
823 | jmp L_dodist_mmx
|
---|
824 |
|
---|
825 | ALIGN 4
|
---|
826 | L_clip_window_mmx:
|
---|
827 |
|
---|
828 | mov ecx,eax
|
---|
829 | mov eax, [esp+52]
|
---|
830 | neg ecx
|
---|
831 | mov esi, [esp+56]
|
---|
832 |
|
---|
833 | cmp eax,ebx
|
---|
834 | jb L_invalid_distance_too_far
|
---|
835 |
|
---|
836 | add ecx,ebx
|
---|
837 | cmp dword ptr [esp+48],0
|
---|
838 | jne L_wrap_around_window_mmx
|
---|
839 |
|
---|
840 | sub eax,ecx
|
---|
841 | add esi,eax
|
---|
842 |
|
---|
843 | cmp edx,ecx
|
---|
844 | jbe L_do_copy1_mmx
|
---|
845 |
|
---|
846 | sub edx,ecx
|
---|
847 | rep movsb
|
---|
848 | mov esi,edi
|
---|
849 | sub esi,ebx
|
---|
850 | jmp L_do_copy1_mmx
|
---|
851 |
|
---|
852 | cmp edx,ecx
|
---|
853 | jbe L_do_copy1_mmx
|
---|
854 |
|
---|
855 | sub edx,ecx
|
---|
856 | rep movsb
|
---|
857 | mov esi,edi
|
---|
858 | sub esi,ebx
|
---|
859 | jmp L_do_copy1_mmx
|
---|
860 |
|
---|
861 | L_wrap_around_window_mmx:
|
---|
862 |
|
---|
863 | mov eax, [esp+48]
|
---|
864 | cmp ecx,eax
|
---|
865 | jbe L_contiguous_in_window_mmx
|
---|
866 |
|
---|
867 | add esi, [esp+52]
|
---|
868 | add esi,eax
|
---|
869 | sub esi,ecx
|
---|
870 | sub ecx,eax
|
---|
871 |
|
---|
872 |
|
---|
873 | cmp edx,ecx
|
---|
874 | jbe L_do_copy1_mmx
|
---|
875 |
|
---|
876 | sub edx,ecx
|
---|
877 | rep movsb
|
---|
878 | mov esi, [esp+56]
|
---|
879 | mov ecx, [esp+48]
|
---|
880 | cmp edx,ecx
|
---|
881 | jbe L_do_copy1_mmx
|
---|
882 |
|
---|
883 | sub edx,ecx
|
---|
884 | rep movsb
|
---|
885 | mov esi,edi
|
---|
886 | sub esi,ebx
|
---|
887 | jmp L_do_copy1_mmx
|
---|
888 |
|
---|
889 | L_contiguous_in_window_mmx:
|
---|
890 |
|
---|
891 | add esi,eax
|
---|
892 | sub esi,ecx
|
---|
893 |
|
---|
894 |
|
---|
895 | cmp edx,ecx
|
---|
896 | jbe L_do_copy1_mmx
|
---|
897 |
|
---|
898 | sub edx,ecx
|
---|
899 | rep movsb
|
---|
900 | mov esi,edi
|
---|
901 | sub esi,ebx
|
---|
902 |
|
---|
903 | L_do_copy1_mmx:
|
---|
904 |
|
---|
905 |
|
---|
906 | mov ecx,edx
|
---|
907 | rep movsb
|
---|
908 |
|
---|
909 | mov esi, [esp+44]
|
---|
910 | mov ebx, [esp+8]
|
---|
911 | jmp L_while_test_mmx
|
---|
912 | ; 1174 "inffast.S"
|
---|
913 | L_invalid_distance_code:
|
---|
914 |
|
---|
915 |
|
---|
916 |
|
---|
917 |
|
---|
918 |
|
---|
919 | mov ecx, invalid_distance_code_msg
|
---|
920 | mov edx,INFLATE_MODE_BAD
|
---|
921 | jmp L_update_stream_state
|
---|
922 |
|
---|
923 | L_test_for_end_of_block:
|
---|
924 |
|
---|
925 |
|
---|
926 |
|
---|
927 |
|
---|
928 |
|
---|
929 | test al,32
|
---|
930 | jz L_invalid_literal_length_code
|
---|
931 |
|
---|
932 | mov ecx,0
|
---|
933 | mov edx,INFLATE_MODE_TYPE
|
---|
934 | jmp L_update_stream_state
|
---|
935 |
|
---|
936 | L_invalid_literal_length_code:
|
---|
937 |
|
---|
938 |
|
---|
939 |
|
---|
940 |
|
---|
941 |
|
---|
942 | mov ecx, invalid_literal_length_code_msg
|
---|
943 | mov edx,INFLATE_MODE_BAD
|
---|
944 | jmp L_update_stream_state
|
---|
945 |
|
---|
946 | L_invalid_distance_too_far:
|
---|
947 |
|
---|
948 |
|
---|
949 |
|
---|
950 | mov esi, [esp+44]
|
---|
951 | mov ecx, invalid_distance_too_far_msg
|
---|
952 | mov edx,INFLATE_MODE_BAD
|
---|
953 | jmp L_update_stream_state
|
---|
954 |
|
---|
955 | L_update_stream_state:
|
---|
956 |
|
---|
957 | mov eax, [esp+88]
|
---|
958 | test ecx,ecx
|
---|
959 | jz L_skip_msg
|
---|
960 | mov [eax+24],ecx
|
---|
961 | L_skip_msg:
|
---|
962 | mov eax, [eax+28]
|
---|
963 | mov [eax+mode_state],edx
|
---|
964 | jmp L_break_loop
|
---|
965 |
|
---|
966 | ALIGN 4
|
---|
967 | L_break_loop:
|
---|
968 | ; 1243 "inffast.S"
|
---|
969 | cmp dword ptr [inflate_fast_use_mmx],2
|
---|
970 | jne L_update_next_in
|
---|
971 |
|
---|
972 |
|
---|
973 |
|
---|
974 | mov ebx,ebp
|
---|
975 |
|
---|
976 | L_update_next_in:
|
---|
977 | ; 1266 "inffast.S"
|
---|
978 | mov eax, [esp+88]
|
---|
979 | mov ecx,ebx
|
---|
980 | mov edx, [eax+28]
|
---|
981 | shr ecx,3
|
---|
982 | sub esi,ecx
|
---|
983 | shl ecx,3
|
---|
984 | sub ebx,ecx
|
---|
985 | mov [eax+12],edi
|
---|
986 | mov [edx+bits_state],ebx
|
---|
987 | mov ecx,ebx
|
---|
988 |
|
---|
989 | lea ebx, [esp+28]
|
---|
990 | cmp [esp+20],ebx
|
---|
991 | jne L_buf_not_used
|
---|
992 |
|
---|
993 | sub esi,ebx
|
---|
994 | mov ebx, [eax+0]
|
---|
995 | mov [esp+20],ebx
|
---|
996 | add esi,ebx
|
---|
997 | mov ebx, [eax+4]
|
---|
998 | sub ebx,11
|
---|
999 | add [esp+20],ebx
|
---|
1000 |
|
---|
1001 | L_buf_not_used:
|
---|
1002 | mov [eax+0],esi
|
---|
1003 |
|
---|
1004 | mov ebx,1
|
---|
1005 | shl ebx,cl
|
---|
1006 | dec ebx
|
---|
1007 |
|
---|
1008 |
|
---|
1009 |
|
---|
1010 |
|
---|
1011 |
|
---|
1012 | cmp dword ptr [inflate_fast_use_mmx],2
|
---|
1013 | jne L_update_hold
|
---|
1014 |
|
---|
1015 |
|
---|
1016 |
|
---|
1017 | psrlq mm0,mm1
|
---|
1018 | movd ebp,mm0
|
---|
1019 |
|
---|
1020 | emms
|
---|
1021 |
|
---|
1022 | L_update_hold:
|
---|
1023 |
|
---|
1024 |
|
---|
1025 |
|
---|
1026 | and ebp,ebx
|
---|
1027 | mov [edx+hold_state],ebp
|
---|
1028 |
|
---|
1029 |
|
---|
1030 |
|
---|
1031 |
|
---|
1032 | mov ebx, [esp+20]
|
---|
1033 | cmp ebx,esi
|
---|
1034 | jbe L_last_is_smaller
|
---|
1035 |
|
---|
1036 | sub ebx,esi
|
---|
1037 | add ebx,11
|
---|
1038 | mov [eax+4],ebx
|
---|
1039 | jmp L_fixup_out
|
---|
1040 | L_last_is_smaller:
|
---|
1041 | sub esi,ebx
|
---|
1042 | neg esi
|
---|
1043 | add esi,11
|
---|
1044 | mov [eax+4],esi
|
---|
1045 |
|
---|
1046 |
|
---|
1047 |
|
---|
1048 |
|
---|
1049 | L_fixup_out:
|
---|
1050 |
|
---|
1051 | mov ebx, [esp+16]
|
---|
1052 | cmp ebx,edi
|
---|
1053 | jbe L_end_is_smaller
|
---|
1054 |
|
---|
1055 | sub ebx,edi
|
---|
1056 | add ebx,257
|
---|
1057 | mov [eax+16],ebx
|
---|
1058 | jmp L_done
|
---|
1059 | L_end_is_smaller:
|
---|
1060 | sub edi,ebx
|
---|
1061 | neg edi
|
---|
1062 | add edi,257
|
---|
1063 | mov [eax+16],edi
|
---|
1064 |
|
---|
1065 |
|
---|
1066 |
|
---|
1067 |
|
---|
1068 |
|
---|
1069 | L_done:
|
---|
1070 | add esp,64
|
---|
1071 | popfd
|
---|
1072 | pop ebx
|
---|
1073 | pop ebp
|
---|
1074 | pop esi
|
---|
1075 | pop edi
|
---|
1076 | ret
|
---|
1077 | _inflate_fast endp
|
---|
1078 |
|
---|
1079 | _TEXT ends
|
---|
1080 | end
|
---|