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Rev | Author | Line No. | Line |
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750 | victor | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
580 | mario79 | 8 | ;************************************************************************** |
9 | ; |
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10 | ; [cache_ide[X]_pointer] |
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11 | ; or [cache_ide[X]_data_pointer] first entry in cache list |
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12 | ; |
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13 | ; +0 - lba sector |
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14 | ; +4 - state of cache sector |
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15 | ; 0 = empty |
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16 | ; 1 = used for read ( same as in hd ) |
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17 | ; 2 = used for write ( differs from hd ) |
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18 | ; |
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19 | ; [cache_ide[X]_system_data] |
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20 | ; or [cache_ide[x]_appl_data] - cache entries |
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21 | ; |
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22 | ;************************************************************************** |
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593 | mikedld | 23 | |
750 | victor | 24 | $Revision: 750 $ |
593 | mikedld | 25 | |
26 | |||
580 | mario79 | 27 | align 4 |
28 | write_cache: |
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29 | ;----------------------------------------------------------- |
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30 | ; write all changed sectors to disk |
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31 | ;----------------------------------------------------------- |
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32 | push eax ecx edx esi edi |
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33 | |||
34 | ; write difference ( 2 ) from cache to hd |
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35 | call calculate_cache |
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36 | add esi,8 |
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37 | mov edi,1 |
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585 | mario79 | 38 | write_cache_more: |
39 | cmp dword [esi+4],2 ; if cache slot is not different |
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580 | mario79 | 40 | jne .write_chain |
585 | mario79 | 41 | mov dword [esi+4],1 ; same as in hd |
42 | mov eax,[esi] ; eax = sector to write |
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580 | mario79 | 43 | cmp eax,[PARTITION_START] |
585 | mario79 | 44 | jb danger |
580 | mario79 | 45 | cmp eax,[PARTITION_END] |
585 | mario79 | 46 | ja danger |
709 | diamond | 47 | cmp [hdpos], 0x80 |
48 | jae @f |
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580 | mario79 | 49 | ; DMA write is permitted only if [allow_dma_access]=1 |
585 | mario79 | 50 | cmp [allow_dma_access], 2 |
51 | jae .nodma |
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52 | cmp [dma_hdd], 1 |
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53 | jnz .nodma |
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709 | diamond | 54 | @@: |
580 | mario79 | 55 | ; Объединяем запись цепочки последовательных секторов в одно обращение к диску |
585 | mario79 | 56 | cmp ecx, 1 |
57 | jz .nonext |
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58 | cmp dword [esi+8+4], 2 |
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59 | jnz .nonext |
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60 | push eax |
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61 | inc eax |
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62 | cmp eax, [esi+8] |
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63 | pop eax |
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64 | jnz .nonext |
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65 | cmp [cache_chain_started], 1 |
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66 | jz @f |
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67 | mov [cache_chain_started], 1 |
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68 | mov [cache_chain_size], 0 |
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69 | mov [cache_chain_pos], edi |
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70 | mov [cache_chain_ptr], esi |
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580 | mario79 | 71 | @@: |
585 | mario79 | 72 | inc [cache_chain_size] |
709 | diamond | 73 | cmp [cache_chain_size], 16 |
585 | mario79 | 74 | jnz .continue |
75 | jmp .write_chain |
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580 | mario79 | 76 | .nonext: |
585 | mario79 | 77 | call flush_cache_chain |
78 | mov [cache_chain_size], 1 |
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79 | mov [cache_chain_ptr], esi |
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80 | call write_cache_sector |
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81 | jmp .continue |
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580 | mario79 | 82 | .nodma: |
585 | mario79 | 83 | call cache_write_pio |
580 | mario79 | 84 | .write_chain: |
585 | mario79 | 85 | call flush_cache_chain |
580 | mario79 | 86 | .continue: |
585 | mario79 | 87 | danger: |
580 | mario79 | 88 | add esi,8 |
89 | inc edi |
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90 | dec ecx |
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91 | jnz write_cache_more |
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585 | mario79 | 92 | call flush_cache_chain |
580 | mario79 | 93 | return_02: |
94 | pop edi esi edx ecx eax |
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95 | ret |
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96 | |||
97 | flush_cache_chain: |
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585 | mario79 | 98 | cmp [cache_chain_started], 0 |
99 | jz @f |
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100 | call write_cache_chain |
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101 | mov [cache_chain_started], 0 |
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580 | mario79 | 102 | @@: |
585 | mario79 | 103 | ret |
104 | ;-------------------------------------------------------------------- |
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580 | mario79 | 105 | align 4 |
106 | find_empty_slot: |
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107 | ;----------------------------------------------------------- |
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108 | ; find empty or read slot, flush cache if next 10% is used by write |
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109 | ; output : edi = cache slot |
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110 | ;----------------------------------------------------------- |
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111 | ; push ecx esi |
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112 | |||
585 | mario79 | 113 | search_again: |
580 | mario79 | 114 | call calculate_cache_3 |
585 | mario79 | 115 | shr ecx,3 |
116 | search_for_empty: |
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580 | mario79 | 117 | inc edi |
118 | call calculate_cache_4 |
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119 | jbe inside_cache |
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120 | mov edi,1 |
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585 | mario79 | 121 | inside_cache: |
580 | mario79 | 122 | push esi |
123 | call calculate_cache_1 |
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124 | cmp dword [edi*8+esi+4],2 |
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125 | pop esi |
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585 | mario79 | 126 | jb found_slot ; it's empty or read |
580 | mario79 | 127 | dec ecx |
128 | jnz search_for_empty |
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585 | mario79 | 129 | call write_cache ; no empty slots found, write all |
580 | mario79 | 130 | cmp [hd_error],0 |
131 | jne found_slot_access_denied |
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585 | mario79 | 132 | jmp search_again ; and start again |
133 | found_slot: |
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580 | mario79 | 134 | call calculate_cache_5 |
585 | mario79 | 135 | found_slot_access_denied: |
580 | mario79 | 136 | ret |
585 | mario79 | 137 | ;-------------------------------------------------------------------- |
580 | mario79 | 138 | align 4 |
139 | clear_hd_cache: |
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140 | mov [fat_in_cache],-1 |
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141 | mov [fat_change],0 |
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142 | ret |
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143 | ;-------------------------------------------------------------------- |
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144 | align 4 |
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145 | calculate_cache: |
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146 | ; mov ecx,cache_max ; entries in cache |
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147 | ; mov esi,HD_CACHE+8 |
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148 | |||
149 | ; 1 - IDE0 ... 4 - IDE3 |
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150 | .ide0: |
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151 | cmp [hdpos],1 |
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152 | jne .ide1 |
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153 | cmp [hdd_appl_data],0 |
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154 | jne .ide0_appl_data |
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155 | mov ecx,[cache_ide0_system_sad_size] |
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156 | mov esi,[cache_ide0_pointer] |
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157 | ret |
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158 | .ide0_appl_data: |
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159 | mov ecx,[cache_ide0_appl_sad_size] |
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160 | mov esi,[cache_ide0_data_pointer] |
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161 | ret |
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162 | .ide1: |
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163 | cmp [hdpos],2 |
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164 | jne .ide2 |
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165 | cmp [hdd_appl_data],0 |
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166 | jne .ide1_appl_data |
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167 | mov ecx,[cache_ide1_system_sad_size] |
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168 | mov esi,[cache_ide1_pointer] |
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169 | ret |
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170 | .ide1_appl_data: |
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171 | mov ecx,[cache_ide1_appl_sad_size] |
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172 | mov esi,[cache_ide1_data_pointer] |
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173 | ret |
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174 | .ide2: |
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175 | cmp [hdpos],3 |
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176 | jne .ide3 |
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177 | cmp [hdd_appl_data],0 |
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178 | jne .ide2_appl_data |
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179 | mov ecx,[cache_ide2_system_sad_size] |
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585 | mario79 | 180 | mov esi,[cache_ide2_pointer] |
580 | mario79 | 181 | ret |
182 | .ide2_appl_data: |
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183 | mov ecx,[cache_ide2_appl_sad_size] |
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184 | mov esi,[cache_ide2_data_pointer] |
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185 | ret |
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186 | .ide3: |
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709 | diamond | 187 | cmp [hdpos],4 |
188 | jne .noide |
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580 | mario79 | 189 | cmp [hdd_appl_data],0 |
190 | jne .ide3_appl_data |
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191 | mov ecx,[cache_ide3_system_sad_size] |
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585 | mario79 | 192 | mov esi,[cache_ide3_pointer] |
580 | mario79 | 193 | ret |
194 | .ide3_appl_data: |
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195 | mov ecx,[cache_ide3_appl_sad_size] |
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196 | mov esi,[cache_ide3_data_pointer] |
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197 | ret |
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709 | diamond | 198 | .noide: |
199 | push eax |
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200 | mov eax,[hdpos] |
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201 | sub eax,80h |
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202 | cmp byte [BiosDisksData+eax*4+2], -1 |
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203 | jz @f |
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204 | movzx eax,byte [BiosDisksData+eax*4+2] |
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205 | imul eax,cache_ide1-cache_ide0 |
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206 | add eax,cache_ide0 |
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207 | jmp .get |
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208 | @@: |
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209 | imul eax,cache_ide1-cache_ide0 |
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210 | add eax,BiosDiskCaches |
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211 | .get: |
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212 | cmp [hdd_appl_data],0 |
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213 | jne .bd_appl_data |
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214 | mov ecx,[cache_ide0_system_sad_size-cache_ide0+eax] |
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215 | mov esi,[cache_ide0_pointer-cache_ide0+eax] |
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216 | pop eax |
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217 | ret |
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218 | .bd_appl_data: |
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219 | mov ecx,[cache_ide0_appl_sad_size-cache_ide0+eax] |
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220 | mov esi,[cache_ide0_data_pointer-cache_ide0+eax] |
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221 | pop eax |
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222 | ret |
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580 | mario79 | 223 | ;-------------------------------------------------------------------- |
224 | align 4 |
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225 | calculate_cache_1: |
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226 | ; lea esi,[edi*8+HD_CACHE] |
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227 | ; 1 - IDE0 ... 4 - IDE3 |
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228 | .ide0: |
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229 | cmp [hdpos],1 |
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230 | jne .ide1 |
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231 | cmp [hdd_appl_data],0 |
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232 | jne .ide0_appl_data |
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233 | mov esi,[cache_ide0_pointer] |
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234 | ret |
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235 | .ide0_appl_data: |
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236 | mov esi,[cache_ide0_data_pointer] |
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237 | ret |
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238 | .ide1: |
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239 | cmp [hdpos],2 |
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240 | jne .ide2 |
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241 | cmp [hdd_appl_data],0 |
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242 | jne .ide1_appl_data |
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243 | mov esi,[cache_ide1_pointer] |
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244 | ret |
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245 | .ide1_appl_data: |
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246 | mov esi,[cache_ide1_data_pointer] |
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247 | ret |
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248 | .ide2: |
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249 | cmp [hdpos],3 |
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250 | jne .ide3 |
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251 | cmp [hdd_appl_data],0 |
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252 | jne .ide2_appl_data |
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253 | mov esi,[cache_ide2_pointer] |
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254 | ret |
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255 | .ide2_appl_data: |
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256 | mov esi,[cache_ide2_data_pointer] |
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257 | ret |
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258 | .ide3: |
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709 | diamond | 259 | cmp [hdpos],4 |
260 | jne .noide |
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580 | mario79 | 261 | cmp [hdd_appl_data],0 |
262 | jne .ide3_appl_data |
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585 | mario79 | 263 | mov esi,[cache_ide3_pointer] |
580 | mario79 | 264 | ret |
265 | .ide3_appl_data: |
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266 | mov esi,[cache_ide3_data_pointer] |
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267 | ret |
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709 | diamond | 268 | .noide: |
269 | push eax |
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270 | mov eax,[hdpos] |
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271 | sub eax,80h |
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272 | cmp byte [BiosDisksData+eax*4+2], -1 |
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273 | jz @f |
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274 | movzx eax,byte [BiosDisksData+eax*4+2] |
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275 | imul eax,cache_ide1-cache_ide0 |
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276 | add eax,cache_ide0 |
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277 | jmp .get |
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278 | @@: |
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279 | imul eax,cache_ide1-cache_ide0 |
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280 | add eax,BiosDiskCaches |
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281 | .get: |
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282 | cmp [hdd_appl_data],0 |
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283 | jne .bd_appl_data |
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284 | mov esi,[cache_ide0_pointer-cache_ide0+eax] |
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285 | pop eax |
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286 | ret |
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287 | .bd_appl_data: |
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288 | mov esi,[cache_ide0_data_pointer-cache_ide0+eax] |
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289 | pop eax |
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290 | ret |
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291 | |||
580 | mario79 | 292 | ;-------------------------------------------------------------------- |
293 | align 4 |
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294 | calculate_cache_2: |
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295 | ; add esi,HD_CACHE+65536 |
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296 | ; 1 - IDE0 ... 4 - IDE3 |
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297 | .ide0: |
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298 | cmp [hdpos],1 |
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299 | jne .ide1 |
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300 | cmp [hdd_appl_data],0 |
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301 | jne .ide0_appl_data |
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585 | mario79 | 302 | mov eax,[cache_ide0_system_data] |
580 | mario79 | 303 | ret |
304 | .ide0_appl_data: |
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305 | mov eax,[cache_ide0_appl_data] |
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306 | ret |
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307 | .ide1: |
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308 | cmp [hdpos],2 |
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309 | jne .ide2 |
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310 | cmp [hdd_appl_data],0 |
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311 | jne .ide1_appl_data |
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312 | mov eax,[cache_ide1_system_data] |
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313 | ret |
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314 | .ide1_appl_data: |
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315 | mov eax,[cache_ide1_appl_data] |
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316 | ret |
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317 | .ide2: |
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318 | cmp [hdpos],3 |
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319 | jne .ide3 |
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320 | cmp [hdd_appl_data],0 |
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321 | jne .ide2_appl_data |
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322 | mov eax,[cache_ide2_system_data] |
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323 | ret |
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324 | .ide2_appl_data: |
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325 | mov eax,[cache_ide2_appl_data] |
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326 | ret |
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327 | .ide3: |
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709 | diamond | 328 | cmp [hdpos],4 |
329 | jne .noide |
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580 | mario79 | 330 | cmp [hdd_appl_data],0 |
331 | jne .ide3_appl_data |
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585 | mario79 | 332 | mov eax,[cache_ide3_system_data] |
580 | mario79 | 333 | ret |
334 | .ide3_appl_data: |
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335 | mov eax,[cache_ide3_appl_data] |
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336 | ret |
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709 | diamond | 337 | .noide: |
338 | mov eax,[hdpos] |
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339 | sub eax,80h |
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340 | cmp byte [BiosDisksData+eax*4+2], -1 |
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341 | jz @f |
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342 | movzx eax,byte [BiosDisksData+eax*4+2] |
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343 | imul eax,cache_ide1-cache_ide0 |
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344 | add eax,cache_ide0 |
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345 | jmp .get |
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346 | @@: |
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347 | imul eax,cache_ide1-cache_ide0 |
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348 | add eax,BiosDiskCaches |
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349 | .get: |
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350 | cmp [hdd_appl_data],0 |
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351 | jne .bd_appl_data |
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352 | mov eax,[cache_ide0_system_data-cache_ide0+eax] |
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353 | ret |
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354 | .bd_appl_data: |
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355 | mov eax,[cache_ide0_appl_data-cache_ide0+eax] |
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356 | ret |
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580 | mario79 | 357 | ;-------------------------------------------------------------------- |
358 | align 4 |
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359 | calculate_cache_3: |
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360 | ; mov ecx,cache_max*10/100 |
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361 | ; mov edi,[cache_search_start] |
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362 | |||
363 | ; 1 - IDE0 ... 4 - IDE3 |
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364 | .ide0: |
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365 | cmp [hdpos],1 |
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366 | jne .ide1 |
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367 | cmp [hdd_appl_data],0 |
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368 | jne .ide0_appl_data |
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369 | mov ecx,[cache_ide0_system_sad_size] |
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370 | mov edi,[cache_ide0_search_start] |
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371 | ret |
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372 | .ide0_appl_data: |
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373 | mov ecx,[cache_ide0_appl_sad_size] |
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374 | mov edi,[cache_ide0_appl_search_start] |
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375 | ret |
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376 | .ide1: |
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377 | cmp [hdpos],2 |
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378 | jne .ide2 |
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379 | cmp [hdd_appl_data],0 |
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380 | jne .ide1_appl_data |
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381 | mov ecx,[cache_ide1_system_sad_size] |
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382 | mov edi,[cache_ide1_search_start] |
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383 | ret |
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384 | .ide1_appl_data: |
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385 | mov ecx,[cache_ide1_appl_sad_size] |
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386 | mov edi,[cache_ide1_appl_search_start] |
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387 | ret |
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388 | .ide2: |
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389 | cmp [hdpos],3 |
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390 | jne .ide3 |
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391 | cmp [hdd_appl_data],0 |
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392 | jne .ide2_appl_data |
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393 | mov ecx,[cache_ide2_system_sad_size] |
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585 | mario79 | 394 | mov edi,[cache_ide2_search_start] |
580 | mario79 | 395 | ret |
396 | .ide2_appl_data: |
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397 | mov ecx,[cache_ide2_appl_sad_size] |
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398 | mov edi,[cache_ide2_appl_search_start] |
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399 | ret |
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400 | .ide3: |
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709 | diamond | 401 | cmp [hdpos],4 |
402 | jne .noide |
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580 | mario79 | 403 | cmp [hdd_appl_data],0 |
404 | jne .ide3_appl_data |
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405 | mov ecx,[cache_ide3_system_sad_size] |
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585 | mario79 | 406 | mov edi,[cache_ide3_search_start] |
580 | mario79 | 407 | ret |
408 | .ide3_appl_data: |
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409 | mov ecx,[cache_ide3_appl_sad_size] |
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410 | mov edi,[cache_ide3_appl_search_start] |
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411 | ret |
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709 | diamond | 412 | .noide: |
413 | push eax |
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414 | mov eax,[hdpos] |
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415 | sub eax,80h |
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416 | cmp byte [BiosDisksData+eax*4+2], -1 |
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417 | jz @f |
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418 | movzx eax,byte [BiosDisksData+eax*4+2] |
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419 | imul eax,cache_ide1-cache_ide0 |
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420 | add eax,cache_ide0 |
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421 | jmp .get |
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422 | @@: |
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423 | imul eax,cache_ide1-cache_ide0 |
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424 | add eax,BiosDiskCaches |
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425 | .get: |
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426 | cmp [hdd_appl_data],0 |
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427 | jne .bd_appl_data |
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428 | mov ecx,[cache_ide0_system_sad_size-cache_ide0+eax] |
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429 | mov edi,[cache_ide0_search_start-cache_ide0+eax] |
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430 | pop eax |
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431 | ret |
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432 | .bd_appl_data: |
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433 | mov ecx,[cache_ide0_appl_sad_size-cache_ide0+eax] |
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434 | mov edi,[cache_ide0_appl_search_start-cache_ide0+eax] |
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435 | pop eax |
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436 | ret |
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580 | mario79 | 437 | ;-------------------------------------------------------------------- |
438 | align 4 |
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439 | calculate_cache_4: |
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440 | ; cmp edi,cache_max |
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441 | ; 1 - IDE0 ... 4 - IDE3 |
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442 | .ide0: |
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443 | cmp [hdpos],1 |
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444 | jne .ide1 |
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445 | cmp [hdd_appl_data],0 |
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446 | jne .ide0_appl_data |
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447 | cmp edi,[cache_ide0_system_sad_size] |
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448 | ret |
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449 | .ide0_appl_data: |
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450 | cmp edi,[cache_ide0_appl_sad_size] |
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451 | ret |
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452 | .ide1: |
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453 | cmp [hdpos],2 |
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454 | jne .ide2 |
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455 | cmp [hdd_appl_data],0 |
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456 | jne .ide1_appl_data |
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457 | cmp edi,[cache_ide1_system_sad_size] |
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458 | ret |
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459 | .ide1_appl_data: |
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460 | cmp edi,[cache_ide1_appl_sad_size] |
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461 | ret |
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462 | .ide2: |
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463 | cmp [hdpos],3 |
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464 | jne .ide3 |
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465 | cmp [hdd_appl_data],0 |
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466 | jne .ide2_appl_data |
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467 | cmp edi,[cache_ide2_system_sad_size] |
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468 | ret |
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469 | .ide2_appl_data: |
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470 | cmp edi,[cache_ide2_appl_sad_size] |
||
471 | ret |
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472 | .ide3: |
||
709 | diamond | 473 | cmp [hdpos],4 |
474 | jne .noide |
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580 | mario79 | 475 | cmp [hdd_appl_data],0 |
476 | jne .ide3_appl_data |
||
477 | cmp edi,[cache_ide3_system_sad_size] |
||
478 | ret |
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479 | .ide3_appl_data: |
||
480 | cmp edi,[cache_ide3_appl_sad_size] |
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481 | ret |
||
709 | diamond | 482 | .noide: |
483 | push eax |
||
484 | mov eax,[hdpos] |
||
485 | sub eax,80h |
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486 | cmp byte [BiosDisksData+eax*4+2], -1 |
||
487 | jz @f |
||
488 | movzx eax,byte [BiosDisksData+eax*4+2] |
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489 | imul eax,cache_ide1-cache_ide0 |
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490 | add eax,cache_ide0 |
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491 | jmp .get |
||
492 | @@: |
||
493 | imul eax,cache_ide1-cache_ide0 |
||
494 | add eax,BiosDiskCaches |
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495 | .get: |
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496 | cmp [hdd_appl_data],0 |
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497 | jne .bd_appl_data |
||
498 | cmp edi,[cache_ide0_system_sad_size-cache_ide0+eax] |
||
499 | pop eax |
||
500 | ret |
||
501 | .bd_appl_data: |
||
502 | cmp edi,[cache_ide0_appl_sad_size-cache_ide0+eax] |
||
503 | pop eax |
||
504 | ret |
||
505 | |||
580 | mario79 | 506 | ;-------------------------------------------------------------------- |
507 | align 4 |
||
508 | calculate_cache_5: |
||
509 | ; mov [cache_search_start],edi |
||
510 | ; 1 - IDE0 ... 4 - IDE3 |
||
511 | .ide0: |
||
512 | cmp [hdpos],1 |
||
513 | jne .ide1 |
||
514 | cmp [hdd_appl_data],0 |
||
515 | jne .ide0_appl_data |
||
585 | mario79 | 516 | mov [cache_ide0_search_start],edi |
580 | mario79 | 517 | ret |
518 | .ide0_appl_data: |
||
519 | mov [cache_ide0_appl_search_start],edi |
||
520 | ret |
||
521 | .ide1: |
||
522 | cmp [hdpos],2 |
||
523 | jne .ide2 |
||
524 | cmp [hdd_appl_data],0 |
||
525 | jne .ide1_appl_data |
||
526 | mov [cache_ide1_search_start],edi |
||
527 | ret |
||
528 | .ide1_appl_data: |
||
529 | mov [cache_ide1_appl_search_start],edi |
||
530 | ret |
||
531 | .ide2: |
||
532 | cmp [hdpos],3 |
||
533 | jne .ide3 |
||
534 | cmp [hdd_appl_data],0 |
||
535 | jne .ide2_appl_data |
||
536 | mov [cache_ide2_search_start],edi |
||
537 | ret |
||
538 | .ide2_appl_data: |
||
539 | mov [cache_ide2_appl_search_start],edi |
||
540 | ret |
||
541 | .ide3: |
||
709 | diamond | 542 | cmp [hdpos],4 |
543 | jne .noide |
||
580 | mario79 | 544 | cmp [hdd_appl_data],0 |
545 | jne .ide3_appl_data |
||
585 | mario79 | 546 | mov [cache_ide3_search_start],edi |
580 | mario79 | 547 | ret |
548 | .ide3_appl_data: |
||
549 | mov [cache_ide3_appl_search_start],edi |
||
550 | ret |
||
709 | diamond | 551 | .noide: |
552 | push eax |
||
553 | mov eax,[hdpos] |
||
554 | sub eax,80h |
||
555 | cmp byte [BiosDisksData+eax*4+2], -1 |
||
556 | jz @f |
||
557 | movzx eax,byte [BiosDisksData+eax*4+2] |
||
558 | imul eax,cache_ide1-cache_ide0 |
||
559 | add eax,cache_ide0 |
||
560 | jmp .get |
||
561 | @@: |
||
562 | imul eax,cache_ide1-cache_ide0 |
||
563 | add eax,BiosDiskCaches |
||
564 | .get: |
||
565 | cmp [hdd_appl_data],0 |
||
566 | jne .bd_appl_data |
||
567 | mov [cache_ide0_search_start-cache_ide0+eax],edi |
||
568 | pop eax |
||
569 | ret |
||
570 | .bd_appl_data: |
||
571 | mov [cache_ide0_appl_search_start-cache_ide0+eax],edi |
||
572 | pop eax |
||
573 | ret |
||
585 | mario79 | 574 | |
580 | mario79 | 575 | ;-------------------------------------------------------------------- |
576 | align 4 |
||
585 | mario79 | 577 | find_empty_slot_CD_cache: |
578 | ;----------------------------------------------------------- |
||
579 | ; find empty or read slot, flush cache if next 10% is used by write |
||
580 | ; output : edi = cache slot |
||
581 | ;----------------------------------------------------------- |
||
582 | .search_again: |
||
583 | call cd_calculate_cache_3 |
||
584 | .search_for_empty: |
||
585 | inc edi |
||
586 | call cd_calculate_cache_4 |
||
587 | jbe .inside_cache |
||
588 | mov edi,1 |
||
589 | .inside_cache: |
||
590 | call cd_calculate_cache_5 |
||
580 | mario79 | 591 | ret |
585 | mario79 | 592 | ;-------------------------------------------------------------------- |
593 | clear_CD_cache: |
||
594 | pusha |
||
595 | .ide0: |
||
596 | xor eax,eax |
||
597 | cmp [cdpos],1 |
||
598 | jne .ide1 |
||
599 | mov [cache_ide0_search_start],eax |
||
600 | mov ecx,[cache_ide0_system_sad_size] |
||
601 | mov edi,[cache_ide0_pointer] |
||
602 | call .clear |
||
603 | mov [cache_ide0_appl_search_start],eax |
||
604 | mov ecx,[cache_ide0_appl_sad_size] |
||
605 | mov edi,[cache_ide0_data_pointer] |
||
606 | jmp .continue |
||
607 | .ide1: |
||
608 | cmp [cdpos],2 |
||
609 | jne .ide2 |
||
610 | mov [cache_ide1_search_start],eax |
||
611 | mov ecx,[cache_ide1_system_sad_size] |
||
612 | mov edi,[cache_ide1_pointer] |
||
613 | call .clear |
||
614 | mov [cache_ide1_appl_search_start],eax |
||
615 | mov ecx,[cache_ide1_appl_sad_size] |
||
616 | mov edi,[cache_ide1_data_pointer] |
||
617 | jmp .continue |
||
618 | .ide2: |
||
619 | cmp [cdpos],3 |
||
620 | jne .ide3 |
||
621 | mov [cache_ide2_search_start],eax |
||
622 | mov ecx,[cache_ide2_system_sad_size] |
||
623 | mov edi,[cache_ide2_pointer] |
||
624 | call .clear |
||
625 | mov [cache_ide2_appl_search_start],eax |
||
626 | mov ecx,[cache_ide2_appl_sad_size] |
||
627 | mov edi,[cache_ide2_data_pointer] |
||
628 | jmp .continue |
||
629 | .ide3: |
||
630 | mov [cache_ide3_search_start],eax |
||
631 | mov ecx,[cache_ide3_system_sad_size] |
||
632 | mov edi,[cache_ide3_pointer] |
||
633 | call .clear |
||
634 | mov [cache_ide3_appl_search_start],eax |
||
635 | mov ecx,[cache_ide3_appl_sad_size] |
||
636 | mov edi,[cache_ide3_data_pointer] |
||
637 | .continue: |
||
638 | call .clear |
||
639 | popa |
||
640 | ret |
||
641 | .clear: |
||
642 | shl ecx,1 |
||
643 | cld |
||
644 | rep stosd |
||
645 | ret |
||
646 | ;-------------------------------------------------------------------- |
||
647 | align 4 |
||
648 | cd_calculate_cache: |
||
649 | ; mov ecx,cache_max ; entries in cache |
||
650 | ; mov esi,HD_CACHE+8 |
||
651 | |||
652 | ; 1 - IDE0 ... 4 - IDE3 |
||
653 | .ide0: |
||
654 | cmp [cdpos],1 |
||
655 | jne .ide1 |
||
656 | cmp [cd_appl_data],0 |
||
657 | jne .ide0_appl_data |
||
658 | mov ecx,[cache_ide0_system_sad_size] |
||
659 | mov esi,[cache_ide0_pointer] |
||
660 | ret |
||
661 | .ide0_appl_data: |
||
662 | mov ecx,[cache_ide0_appl_sad_size] |
||
663 | mov esi,[cache_ide0_data_pointer] |
||
664 | ret |
||
665 | .ide1: |
||
666 | cmp [cdpos],2 |
||
667 | jne .ide2 |
||
668 | cmp [cd_appl_data],0 |
||
669 | jne .ide1_appl_data |
||
670 | mov ecx,[cache_ide1_system_sad_size] |
||
671 | mov esi,[cache_ide1_pointer] |
||
672 | ret |
||
673 | .ide1_appl_data: |
||
674 | mov ecx,[cache_ide1_appl_sad_size] |
||
675 | mov esi,[cache_ide1_data_pointer] |
||
676 | ret |
||
677 | .ide2: |
||
678 | cmp [cdpos],3 |
||
679 | jne .ide3 |
||
680 | cmp [cd_appl_data],0 |
||
681 | jne .ide2_appl_data |
||
682 | mov ecx,[cache_ide2_system_sad_size] |
||
683 | mov esi,[cache_ide2_pointer] |
||
684 | ret |
||
685 | .ide2_appl_data: |
||
686 | mov ecx,[cache_ide2_appl_sad_size] |
||
687 | mov esi,[cache_ide2_data_pointer] |
||
688 | ret |
||
689 | .ide3: |
||
690 | cmp [cd_appl_data],0 |
||
691 | jne .ide3_appl_data |
||
692 | mov ecx,[cache_ide3_system_sad_size] |
||
693 | mov esi,[cache_ide3_pointer] |
||
694 | ret |
||
695 | .ide3_appl_data: |
||
696 | mov ecx,[cache_ide3_appl_sad_size] |
||
697 | mov esi,[cache_ide3_data_pointer] |
||
698 | ret |
||
699 | ;-------------------------------------------------------------------- |
||
700 | align 4 |
||
701 | cd_calculate_cache_1: |
||
702 | ; lea esi,[edi*8+HD_CACHE] |
||
703 | ; 1 - IDE0 ... 4 - IDE3 |
||
704 | .ide0: |
||
705 | cmp [cdpos],1 |
||
706 | jne .ide1 |
||
707 | cmp [cd_appl_data],0 |
||
708 | jne .ide0_appl_data |
||
709 | mov esi,[cache_ide0_pointer] |
||
710 | ret |
||
711 | .ide0_appl_data: |
||
712 | mov esi,[cache_ide0_data_pointer] |
||
713 | ret |
||
714 | .ide1: |
||
715 | cmp [cdpos],2 |
||
716 | jne .ide2 |
||
717 | cmp [cd_appl_data],0 |
||
718 | jne .ide1_appl_data |
||
719 | mov esi,[cache_ide1_pointer] |
||
720 | ret |
||
721 | .ide1_appl_data: |
||
722 | mov esi,[cache_ide1_data_pointer] |
||
723 | ret |
||
724 | .ide2: |
||
725 | cmp [cdpos],3 |
||
726 | jne .ide3 |
||
727 | cmp [cd_appl_data],0 |
||
728 | jne .ide2_appl_data |
||
729 | mov esi,[cache_ide2_pointer] |
||
730 | ret |
||
731 | .ide2_appl_data: |
||
732 | mov esi,[cache_ide2_data_pointer] |
||
733 | ret |
||
734 | .ide3: |
||
735 | cmp [cd_appl_data],0 |
||
736 | jne .ide3_appl_data |
||
737 | mov esi,[cache_ide3_pointer] |
||
738 | ret |
||
739 | .ide3_appl_data: |
||
740 | mov esi,[cache_ide3_data_pointer] |
||
741 | ret |
||
742 | ;-------------------------------------------------------------------- |
||
743 | align 4 |
||
744 | cd_calculate_cache_2: |
||
745 | ; add esi,HD_CACHE+65536 |
||
746 | ; 1 - IDE0 ... 4 - IDE3 |
||
747 | .ide0: |
||
748 | cmp [cdpos],1 |
||
749 | jne .ide1 |
||
750 | cmp [cd_appl_data],0 |
||
751 | jne .ide0_appl_data |
||
752 | mov eax,[cache_ide0_system_data] |
||
753 | ret |
||
754 | .ide0_appl_data: |
||
755 | mov eax,[cache_ide0_appl_data] |
||
756 | ret |
||
757 | .ide1: |
||
758 | cmp [cdpos],2 |
||
759 | jne .ide2 |
||
760 | cmp [cd_appl_data],0 |
||
761 | jne .ide1_appl_data |
||
762 | mov eax,[cache_ide1_system_data] |
||
763 | ret |
||
764 | .ide1_appl_data: |
||
765 | mov eax,[cache_ide1_appl_data] |
||
766 | ret |
||
767 | .ide2: |
||
768 | cmp [cdpos],3 |
||
769 | jne .ide3 |
||
770 | cmp [cd_appl_data],0 |
||
771 | jne .ide2_appl_data |
||
772 | mov eax,[cache_ide2_system_data] |
||
773 | ret |
||
774 | .ide2_appl_data: |
||
775 | mov eax,[cache_ide2_appl_data] |
||
776 | ret |
||
777 | .ide3: |
||
778 | cmp [cd_appl_data],0 |
||
779 | jne .ide3_appl_data |
||
780 | mov eax,[cache_ide3_system_data] |
||
781 | ret |
||
782 | .ide3_appl_data: |
||
783 | mov eax,[cache_ide3_appl_data] |
||
784 | ret |
||
785 | ;-------------------------------------------------------------------- |
||
786 | align 4 |
||
787 | cd_calculate_cache_3: |
||
788 | ; mov ecx,cache_max*10/100 |
||
789 | ; mov edi,[cache_search_start] |
||
790 | |||
791 | ; 1 - IDE0 ... 4 - IDE3 |
||
792 | .ide0: |
||
793 | cmp [cdpos],1 |
||
794 | jne .ide1 |
||
795 | cmp [cd_appl_data],0 |
||
796 | jne .ide0_appl_data |
||
797 | mov edi,[cache_ide0_search_start] |
||
798 | ret |
||
799 | .ide0_appl_data: |
||
800 | mov edi,[cache_ide0_appl_search_start] |
||
801 | ret |
||
802 | .ide1: |
||
803 | cmp [cdpos],2 |
||
804 | jne .ide2 |
||
805 | cmp [cd_appl_data],0 |
||
806 | jne .ide1_appl_data |
||
807 | mov edi,[cache_ide1_search_start] |
||
808 | ret |
||
809 | .ide1_appl_data: |
||
810 | mov edi,[cache_ide1_appl_search_start] |
||
811 | ret |
||
812 | .ide2: |
||
813 | cmp [cdpos],3 |
||
814 | jne .ide3 |
||
815 | cmp [cd_appl_data],0 |
||
816 | jne .ide2_appl_data |
||
817 | mov edi,[cache_ide2_search_start] |
||
818 | ret |
||
819 | .ide2_appl_data: |
||
820 | mov edi,[cache_ide2_appl_search_start] |
||
821 | ret |
||
822 | .ide3: |
||
823 | cmp [cd_appl_data],0 |
||
824 | jne .ide3_appl_data |
||
825 | mov edi,[cache_ide3_search_start] |
||
826 | ret |
||
827 | .ide3_appl_data: |
||
828 | mov edi,[cache_ide3_appl_search_start] |
||
829 | ret |
||
830 | ;-------------------------------------------------------------------- |
||
831 | align 4 |
||
832 | cd_calculate_cache_4: |
||
833 | ; cmp edi,cache_max |
||
834 | ; 1 - IDE0 ... 4 - IDE3 |
||
835 | .ide0: |
||
836 | cmp [cdpos],1 |
||
837 | jne .ide1 |
||
838 | cmp [cd_appl_data],0 |
||
839 | jne .ide0_appl_data |
||
840 | cmp edi,[cache_ide0_system_sad_size] |
||
841 | ret |
||
842 | .ide0_appl_data: |
||
843 | cmp edi,[cache_ide0_appl_sad_size] |
||
844 | ret |
||
845 | .ide1: |
||
846 | cmp [cdpos],2 |
||
847 | jne .ide2 |
||
848 | cmp [cd_appl_data],0 |
||
849 | jne .ide1_appl_data |
||
850 | cmp edi,[cache_ide1_system_sad_size] |
||
851 | ret |
||
852 | .ide1_appl_data: |
||
853 | cmp edi,[cache_ide1_appl_sad_size] |
||
854 | ret |
||
855 | .ide2: |
||
856 | cmp [cdpos],3 |
||
857 | jne .ide3 |
||
858 | cmp [cd_appl_data],0 |
||
859 | jne .ide2_appl_data |
||
860 | cmp edi,[cache_ide2_system_sad_size] |
||
861 | ret |
||
862 | .ide2_appl_data: |
||
863 | cmp edi,[cache_ide2_appl_sad_size] |
||
864 | ret |
||
865 | .ide3: |
||
866 | cmp [cd_appl_data],0 |
||
867 | jne .ide3_appl_data |
||
868 | cmp edi,[cache_ide3_system_sad_size] |
||
869 | ret |
||
870 | .ide3_appl_data: |
||
871 | cmp edi,[cache_ide3_appl_sad_size] |
||
872 | ret |
||
873 | ;-------------------------------------------------------------------- |
||
874 | align 4 |
||
875 | cd_calculate_cache_5: |
||
876 | ; mov [cache_search_start],edi |
||
877 | ; 1 - IDE0 ... 4 - IDE3 |
||
878 | .ide0: |
||
879 | cmp [cdpos],1 |
||
880 | jne .ide1 |
||
881 | cmp [cd_appl_data],0 |
||
882 | jne .ide0_appl_data |
||
883 | mov [cache_ide0_search_start],edi |
||
884 | ret |
||
885 | .ide0_appl_data: |
||
886 | mov [cache_ide0_appl_search_start],edi |
||
887 | ret |
||
888 | .ide1: |
||
889 | cmp [cdpos],2 |
||
890 | jne .ide2 |
||
891 | cmp [cd_appl_data],0 |
||
892 | jne .ide1_appl_data |
||
893 | mov [cache_ide1_search_start],edi |
||
894 | ret |
||
895 | .ide1_appl_data: |
||
896 | mov [cache_ide1_appl_search_start],edi |
||
897 | ret |
||
898 | .ide2: |
||
899 | cmp [cdpos],3 |
||
900 | jne .ide3 |
||
901 | cmp [cd_appl_data],0 |
||
902 | jne .ide2_appl_data |
||
903 | mov [cache_ide2_search_start],edi |
||
904 | ret |
||
905 | .ide2_appl_data: |
||
906 | mov [cache_ide2_appl_search_start],edi |
||
907 | ret |
||
908 | .ide3: |
||
909 | cmp [cd_appl_data],0 |
||
910 | jne .ide3_appl_data |
||
911 | mov [cache_ide3_search_start],edi |
||
912 | ret |
||
913 | .ide3_appl_data: |
||
914 | mov [cache_ide3_appl_search_start],edi |
||
915 | ret |
||
916 | ;-------------------------------------------------------------------- |
||
917 | ;align 4 |
||
918 | ;calculate_linear_to_real: |
||
919 | ; shr eax, 12 |
||
920 | ; mov eax, [page_tabs+eax*4] |
||
921 | ; and eax, 0xFFFFF000 |
||
922 | ; ret |