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Rev | Author | Line No. | Line |
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220 | heavyiron | 1 | ; flat assembler |
2 | ; Copyright (c) 1999-2006, Tomasz Grysztar |
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31 | halyavin | 3 | ; All rights reserved. |
4 | ; |
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5 | ; MenuetOS system.inc by VT |
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6 | |||
182 | serge | 7 | struc FILEIO |
8 | { .cmd dd ? |
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9 | .offset dd ? |
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10 | dd ? |
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11 | .count dd ? |
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12 | .buff dd ? |
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13 | db ? |
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14 | .name dd ? |
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15 | }; |
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16 | |||
17 | struc FILEINFO |
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18 | { .attr dd ? |
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19 | .flags dd ? |
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20 | .cr_time dd ? |
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21 | .cr_date dd ? |
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22 | .acc_time dd ? |
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23 | .acc_date dd ? |
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24 | .mod_time dd ? |
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25 | .mod_date dd ? |
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26 | .size dd ? |
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27 | } |
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28 | |||
29 | |||
30 | |||
31 | ;file_info_open: dd 0,0,0xffffff,0x20000,0xf0000 |
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174 | heavyiron | 32 | fullpath_open: ; db '/RD/1/EXAMPLE.ASM' |
31 | halyavin | 33 | times MAX_PATH db 0 |
34 | |||
174 | heavyiron | 35 | |
182 | serge | 36 | ;file_info_write: dd 1,0,0,0,0xf0000 |
174 | heavyiron | 37 | fullpath_write:; db '/RD/1/EXAMPLE' |
31 | halyavin | 38 | times MAX_PATH db 0 |
39 | |||
174 | heavyiron | 40 | file_info_start: ;this part is already rewrited to 70th function |
41 | dd 7 |
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42 | dd 0 |
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43 | dd 0 |
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44 | dd 0 |
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45 | dd 0 |
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46 | fullpath_start: ; db '/RD/1/EXAMPLE' |
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31 | halyavin | 47 | times MAX_PATH db 0 |
48 | |||
49 | _ramdisk db '/RD/1/' |
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50 | filepos dd 0x0 |
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51 | |||
52 | ; info by Privalov: starting from FASM 1.51 |
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53 | ; ~3/8 - additional memory |
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54 | ; ~5/8 - main memory |
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55 | init_memory: |
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56 | mov [memory_start],0x100000 |
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57 | mov [memory_end],0x100000+(APP_MEMORY-0x100000)/8*5 |
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58 | mov [additional_memory],0x100000+(APP_MEMORY-0x100000)/8*5 |
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59 | mov [additional_memory_end],APP_MEMORY |
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60 | ret |
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61 | |||
62 | exit_program: |
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63 | cmp [_mode],NORMAL_MODE |
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64 | je still |
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65 | or eax,-1 |
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66 | int 0x40 |
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67 | |||
68 | make_timestamp: |
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69 | push ebx |
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70 | mcall 26,9 |
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71 | imul eax,10 |
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72 | pop ebx |
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73 | ret |
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74 | |||
75 | get_environment_variable: |
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76 | mov ecx,[memory_end] |
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77 | sub ecx,edi |
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78 | cmp ecx,7 |
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79 | jb out_of_memory |
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80 | cmp dword[esi],'INCL' |
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81 | jne .finish |
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82 | mov esi,_ramdisk |
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83 | mov ecx,6 |
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84 | cld |
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85 | rep movsb |
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86 | .finish: |
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87 | ; stc |
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88 | ret |
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89 | |||
332 | diamond | 90 | alloc_handle: |
91 | call make_fullpaths |
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92 | mov ebx, fileinfos+4 |
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93 | @@: |
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94 | cmp dword [ebx], -1 |
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95 | jz .found |
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96 | add ebx, 4+20+MAX_PATH |
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97 | cmp ebx, fileinfos_end |
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98 | jb @b |
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99 | stc |
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100 | ret |
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101 | .found: |
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102 | and dword [ebx+4], 0 |
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103 | and dword [ebx+8], 0 |
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104 | push esi edi ecx |
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105 | mov esi, fullpath_open |
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106 | lea edi, [ebx+20] |
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107 | mov ecx, MAX_PATH |
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108 | rep movsb |
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109 | pop ecx edi esi |
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110 | ret ; CF=0 |
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31 | halyavin | 111 | |
112 | create: |
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332 | diamond | 113 | call alloc_handle |
114 | jc .ret |
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115 | and dword [ebx-4], 0 |
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116 | mov dword [ebx], 2 |
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117 | .ret: |
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118 | ret |
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31 | halyavin | 119 | |
182 | serge | 120 | |
121 | open: |
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122 | ; call make_fullpaths |
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123 | |||
124 | ;; mov eax,fullpath_open |
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125 | ;; DEBUGF '"%s"\n',eax |
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126 | |||
127 | ; mov dword[file_info_open+8],-1 |
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128 | ; mcall 58,file_info_open |
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129 | ; or eax,eax ; found |
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130 | ; jz @f |
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131 | ; cmp eax,6 |
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132 | ; jne file_error |
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133 | ;@@: mov [filesize],ebx |
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134 | ; clc |
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135 | ; ret |
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136 | ;file_error: |
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137 | ; stc |
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138 | ; ret |
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139 | |||
332 | diamond | 140 | call alloc_handle |
141 | jc .ret |
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142 | mov dword [ebx], 5 |
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143 | and dword [ebx+12], 0 |
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144 | mov dword [ebx+16], fileinfo |
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145 | mov eax, 70 |
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146 | push ebx |
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147 | int 0x40 |
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148 | pop ebx |
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149 | test eax, eax |
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150 | jnz .fail |
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151 | mov eax, [fileinfo.size] |
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152 | mov [ebx-4], eax |
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153 | and dword [ebx], 0 |
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154 | .ret: |
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155 | ret |
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182 | serge | 156 | .fail: |
332 | diamond | 157 | or dword [ebx], -1 ; close handle |
158 | stc |
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159 | ret |
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182 | serge | 160 | |
161 | read: |
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162 | ; pusha |
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163 | ; mov edi,edx |
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164 | ; mov esi,[filepos] |
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165 | ; add esi,0x20000 |
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166 | ; cld |
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167 | ; rep movsb |
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168 | ; popa |
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169 | ;; ret |
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170 | |||
332 | diamond | 171 | mov [ebx+12], ecx |
172 | mov [ebx+16], edx |
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173 | push ebx |
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174 | mov eax, 70 |
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175 | int 0x40 |
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176 | xchg eax, [esp] |
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177 | add [eax+4], ebx |
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178 | adc [eax+8], dword 0 |
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179 | mov ebx, eax |
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180 | pop eax |
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181 | test eax, eax |
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182 | jz .ok |
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183 | cmp eax, 6 |
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184 | jz .ok |
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185 | stc |
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186 | .ok: |
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187 | ret |
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188 | |||
182 | serge | 189 | close: |
332 | diamond | 190 | or dword [ebx], -1 |
191 | ret |
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182 | serge | 192 | |
193 | |||
31 | halyavin | 194 | ; ebx file handle |
195 | ; ecx count of bytes to write |
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196 | ; edx pointer to buffer |
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197 | write: |
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182 | serge | 198 | ; pusha |
199 | ; mov [file_info_write+8],ecx |
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200 | ; mov [file_info_write+12],edx |
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201 | ; mov [filesize],edx |
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202 | ; mov eax,58 |
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203 | ; mov ebx,file_info_write |
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204 | ; int 0x40 |
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205 | ; popa |
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206 | ; ret |
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31 | halyavin | 207 | |
332 | diamond | 208 | mov [ebx+12], ecx |
209 | mov [ebx+16], edx |
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210 | push ebx |
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211 | mov eax, 70 |
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212 | int 0x40 |
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213 | xchg eax, [esp] |
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214 | add [eax+4], ebx |
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215 | adc [eax+8], dword 0 |
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216 | mov ebx, eax |
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217 | pop eax |
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218 | mov byte [ebx], 3 |
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219 | cmp eax, 1 |
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220 | cmc |
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221 | ret |
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182 | serge | 222 | |
31 | halyavin | 223 | make_fullpaths: |
224 | pusha |
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225 | push edx |
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226 | |||
227 | mov esi,path ; open |
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228 | ; DEBUGF " '%s'",esi |
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229 | mov edi,fullpath_open |
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230 | cld |
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231 | newc1: |
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232 | movsb |
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233 | cmp byte[esi],0;' ' |
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234 | jne newc1 |
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235 | mov esi,[esp] |
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236 | |||
237 | cmp byte[esi],'/' |
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238 | jne @f |
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239 | mov edi,fullpath_open |
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240 | |||
241 | @@: |
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242 | lodsb |
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243 | stosb |
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244 | cmp al,0 |
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245 | jne @b |
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246 | ; mov ecx,12 |
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247 | ; cld |
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248 | ; rep movsb |
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249 | ; mov byte[edi],0 |
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250 | |||
251 | mov esi,path ; write |
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252 | mov edi,fullpath_write |
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253 | cld |
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254 | newc2: |
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255 | movsb |
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256 | cmp byte[esi],0;' ' |
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