Rev 584 | Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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580 | mario79 | 1 | ;cache_ide0_pointer dd 0 |
2 | ;cache_ide0_size dd 0 ; not use |
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3 | ;cache_ide0_data_pointer dd 0 |
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4 | ;cache_ide0_system_data_size dd 0 ; not use |
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5 | ;cache_ide0_appl_data_size dd 0 ; not use |
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6 | ;cache_ide0_system_data dd 0 |
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7 | ;cache_ide0_appl_data dd 0 |
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8 | ;cache_ide0_system_sad_size dd 0 |
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9 | ;cache_ide0_appl_sad_size dd 0 |
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10 | |||
11 | pusha |
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12 | |||
13 | mov eax,[pg_data.pages_free] |
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14 | ; 1/32 |
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15 | shr eax,5 |
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16 | ; round off up to 8 pages |
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17 | shr eax,3 |
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18 | shl eax,3 |
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19 | ; translate pages in butes *4096 |
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20 | shl eax,12 |
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21 | ; check a upper size of the cache, no more than 1 Mb on the physical device |
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22 | cmp eax,1024*1024 |
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23 | jbe @f |
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24 | mov eax,1024*1024 |
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25 | jmp .continue |
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26 | @@: |
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27 | ; check a lower size of the cache, not less than 128 Kb on the physical device |
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28 | cmp eax,128*1024 |
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29 | jae @f |
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30 | mov eax,128*1024 |
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31 | @@: |
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32 | .continue: |
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33 | mov [cache_ide0_size],eax |
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34 | mov [cache_ide1_size],eax |
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35 | mov [cache_ide2_size],eax |
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36 | mov [cache_ide3_size],eax |
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37 | xor eax,eax |
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38 | mov [cache_ide0_search_start],eax |
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39 | mov [cache_ide0_appl_search_start],eax |
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40 | mov [cache_ide1_search_start],eax |
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41 | mov [cache_ide1_appl_search_start],eax |
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42 | mov [cache_ide2_search_start],eax |
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43 | mov [cache_ide2_appl_search_start],eax |
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44 | mov [cache_ide3_search_start],eax |
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45 | mov [cache_ide3_appl_search_start],eax |
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46 | mov [hdd_appl_data],1 ;al |
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47 | |||
48 | mov cl,[DRIVE_DATA+1] |
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49 | mov ch,cl |
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50 | and cl,11b |
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51 | cmp cl,0 |
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52 | je .ide2 |
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53 | call get_cache_ide3 |
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54 | .ide2: |
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55 | mov cl,ch |
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56 | and cl,1100b |
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57 | cmp cl,0 |
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58 | je .ide1 |
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59 | call get_cache_ide2 |
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60 | .ide1: |
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61 | mov cl,ch |
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62 | and cl,110000b |
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63 | cmp cl,0 |
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64 | je .ide0 |
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65 | call get_cache_ide1 |
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66 | .ide0: |
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67 | mov cl,ch |
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68 | and cl,11000000b |
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69 | cmp cl,0 |
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70 | je end_get_cache |
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71 | call get_cache_ide0 |
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72 | jmp end_get_cache |
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73 | |||
74 | get_cache_ide0: |
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75 | push ecx |
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76 | stdcall kernel_alloc,[cache_ide0_size] |
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77 | mov [cache_ide0_pointer],eax |
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78 | pop ecx |
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79 | mov edx,eax |
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80 | mov eax,[cache_ide0_size] |
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81 | shr eax,3 |
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82 | mov [cache_ide0_system_data_size],eax |
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83 | mov ebx,eax |
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84 | imul eax,7 |
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85 | mov [cache_ide0_appl_data_size],eax |
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86 | add ebx,edx |
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87 | mov [cache_ide0_data_pointer],ebx |
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88 | |||
89 | cmp cl,10000000b |
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90 | je .cd |
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91 | push ecx |
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92 | mov eax,[cache_ide0_system_data_size] |
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93 | call calculate_for_hd |
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94 | add eax,[cache_ide0_pointer] |
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95 | mov [cache_ide0_system_data],eax |
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96 | mov [cache_ide0_system_sad_size],ecx |
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97 | |||
98 | push edi |
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99 | mov edi,[cache_ide0_pointer] |
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100 | call clear_ide_cache |
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101 | pop edi |
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102 | |||
103 | mov eax,[cache_ide0_appl_data_size] |
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104 | call calculate_for_hd |
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105 | add eax,[cache_ide0_data_pointer] |
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106 | mov [cache_ide0_appl_data],eax |
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107 | mov [cache_ide0_appl_sad_size],ecx |
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108 | |||
109 | push edi |
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110 | mov edi,[cache_ide0_data_pointer] |
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111 | call clear_ide_cache |
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112 | pop edi |
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113 | |||
114 | pop ecx |
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115 | ret |
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116 | .cd: |
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117 | push ecx |
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118 | mov eax,[cache_ide0_system_data_size] |
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119 | call calculate_for_cd |
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120 | add eax,[cache_ide0_pointer] |
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121 | mov [cache_ide0_system_data],eax |
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122 | mov [cache_ide0_system_sad_size],ecx |
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123 | |||
124 | push edi |
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125 | mov edi,[cache_ide0_pointer] |
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126 | call clear_ide_cache |
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127 | pop edi |
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128 | |||
129 | mov eax,[cache_ide0_appl_data_size] |
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130 | call calculate_for_cd |
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131 | add eax,[cache_ide0_data_pointer] |
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132 | mov [cache_ide0_appl_data],eax |
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133 | mov [cache_ide0_appl_sad_size],ecx |
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134 | |||
135 | push edi |
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136 | mov edi,[cache_ide0_data_pointer] |
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137 | call clear_ide_cache |
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138 | pop edi |
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139 | |||
140 | pop ecx |
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141 | ret |
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142 | |||
143 | get_cache_ide1: |
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144 | push ecx |
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145 | stdcall kernel_alloc,[cache_ide1_size] |
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146 | mov [cache_ide1_pointer],eax |
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147 | pop ecx |
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148 | mov edx,eax |
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149 | mov eax,[cache_ide1_size] |
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150 | shr eax,3 |
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151 | mov [cache_ide1_system_data_size],eax |
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152 | mov ebx,eax |
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153 | imul eax,7 |
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154 | mov [cache_ide1_appl_data_size],eax |
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155 | add ebx,edx |
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156 | mov [cache_ide1_data_pointer],ebx |
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157 | |||
158 | cmp cl,100000b |
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159 | je .cd |
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160 | push ecx |
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161 | mov eax,[cache_ide1_system_data_size] |
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162 | call calculate_for_hd |
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163 | add eax,[cache_ide1_pointer] |
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164 | mov [cache_ide1_system_data],eax |
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165 | mov [cache_ide1_system_sad_size],ecx |
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166 | |||
167 | push edi |
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168 | mov edi,[cache_ide1_pointer] |
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169 | call clear_ide_cache |
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170 | pop edi |
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171 | |||
172 | mov eax,[cache_ide1_appl_data_size] |
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173 | call calculate_for_hd |
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174 | add eax,[cache_ide1_data_pointer] |
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175 | mov [cache_ide1_appl_data],eax |
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176 | mov [cache_ide1_appl_sad_size],ecx |
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177 | |||
178 | push edi |
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179 | mov edi,[cache_ide1_data_pointer] |
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180 | call clear_ide_cache |
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181 | pop edi |
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182 | |||
183 | pop ecx |
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184 | ret |
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185 | .cd: |
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186 | push ecx |
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187 | mov eax,[cache_ide1_system_data_size] |
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188 | call calculate_for_cd |
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189 | add eax,[cache_ide1_pointer] |
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190 | mov [cache_ide1_system_data],eax |
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191 | mov [cache_ide1_system_sad_size],ecx |
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192 | |||
193 | push edi |
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194 | mov edi,[cache_ide1_pointer] |
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195 | call clear_ide_cache |
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196 | pop edi |
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197 | |||
198 | mov eax,[cache_ide1_appl_data_size] |
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199 | call calculate_for_cd |
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200 | add eax,[cache_ide1_data_pointer] |
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201 | mov [cache_ide1_appl_data],eax |
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202 | mov [cache_ide1_appl_sad_size],ecx |
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203 | |||
204 | push edi |
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205 | mov edi,[cache_ide1_data_pointer] |
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206 | call clear_ide_cache |
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207 | pop edi |
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208 | |||
209 | pop ecx |
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210 | ret |
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211 | |||
212 | get_cache_ide2: |
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213 | push ecx |
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214 | stdcall kernel_alloc,[cache_ide2_size] |
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215 | mov [cache_ide2_pointer],eax |
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216 | pop ecx |
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217 | mov edx,eax |
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218 | mov eax,[cache_ide2_size] |
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219 | shr eax,3 |
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220 | mov [cache_ide2_system_data_size],eax |
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221 | mov ebx,eax |
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222 | imul eax,7 |
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223 | mov [cache_ide2_appl_data_size],eax |
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224 | add ebx,edx |
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225 | mov [cache_ide2_data_pointer],ebx |
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226 | |||
227 | cmp cl,1000b |
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228 | je .cd |
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229 | push ecx |
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230 | mov eax,[cache_ide2_system_data_size] |
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231 | call calculate_for_hd |
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232 | add eax,[cache_ide2_pointer] |
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233 | mov [cache_ide2_system_data],eax |
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234 | mov [cache_ide2_system_sad_size],ecx |
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235 | |||
236 | push edi |
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237 | mov edi,[cache_ide2_pointer] |
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238 | call clear_ide_cache |
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239 | pop edi |
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240 | |||
241 | mov eax,[cache_ide2_appl_data_size] |
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242 | call calculate_for_hd |
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243 | add eax,[cache_ide2_data_pointer] |
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244 | mov [cache_ide2_appl_data],eax |
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245 | mov [cache_ide2_appl_sad_size],ecx |
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246 | |||
247 | push edi |
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248 | mov edi,[cache_ide2_data_pointer] |
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249 | call clear_ide_cache |
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250 | pop edi |
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251 | |||
252 | pop ecx |
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253 | ret |
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254 | .cd: |
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255 | push ecx |
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256 | mov eax,[cache_ide2_system_data_size] |
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257 | call calculate_for_cd |
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258 | add eax,[cache_ide2_pointer] |
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259 | mov [cache_ide2_system_data],eax |
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260 | mov [cache_ide2_system_sad_size],ecx |
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261 | |||
262 | push edi |
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263 | mov edi,[cache_ide2_pointer] |
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264 | call clear_ide_cache |
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265 | pop edi |
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266 | |||
267 | mov eax,[cache_ide2_appl_data_size] |
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268 | call calculate_for_cd |
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269 | add eax,[cache_ide2_data_pointer] |
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270 | mov [cache_ide2_appl_data],eax |
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271 | mov [cache_ide2_appl_sad_size],ecx |
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272 | |||
273 | push edi |
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274 | mov edi,[cache_ide2_data_pointer] |
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275 | call clear_ide_cache |
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276 | pop edi |
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277 | |||
278 | pop ecx |
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279 | ret |
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280 | |||
281 | get_cache_ide3: |
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282 | push ecx |
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283 | stdcall kernel_alloc,[cache_ide3_size] |
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284 | mov [cache_ide3_pointer],eax |
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285 | pop ecx |
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286 | mov edx,eax |
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287 | mov eax,[cache_ide3_size] |
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288 | shr eax,3 |
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289 | mov [cache_ide3_system_data_size],eax |
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290 | mov ebx,eax |
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291 | imul eax,7 |
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292 | mov [cache_ide3_appl_data_size],eax |
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293 | add ebx,edx |
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294 | mov [cache_ide3_data_pointer],ebx |
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295 | |||
296 | cmp cl,10b |
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297 | je .cd |
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298 | push ecx |
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299 | mov eax,[cache_ide3_system_data_size] |
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300 | call calculate_for_hd |
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301 | add eax,[cache_ide3_pointer] |
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302 | mov [cache_ide3_system_data],eax |
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303 | mov [cache_ide3_system_sad_size],ecx |
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304 | |||
305 | push edi |
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306 | mov edi,[cache_ide3_pointer] |
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307 | call clear_ide_cache |
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308 | pop edi |
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309 | |||
310 | mov eax,[cache_ide3_appl_data_size] |
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311 | call calculate_for_hd |
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312 | add eax,[cache_ide3_data_pointer] |
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313 | mov [cache_ide3_appl_data],eax |
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314 | mov [cache_ide3_appl_sad_size],ecx |
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315 | |||
316 | push edi |
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317 | mov edi,[cache_ide3_data_pointer] |
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318 | call clear_ide_cache |
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319 | pop edi |
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320 | |||
321 | pop ecx |
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322 | ret |
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323 | .cd: |
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324 | push ecx |
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325 | mov eax,[cache_ide3_system_data_size] |
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326 | call calculate_for_cd |
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327 | add eax,[cache_ide3_pointer] |
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328 | mov [cache_ide3_system_data],eax |
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329 | mov [cache_ide3_system_sad_size],ecx |
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330 | |||
331 | push edi |
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332 | mov edi,[cache_ide3_pointer] |
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333 | call clear_ide_cache |
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334 | pop edi |
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335 | |||
336 | mov eax,[cache_ide3_appl_data_size] |
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337 | call calculate_for_cd |
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338 | add eax,[cache_ide3_data_pointer] |
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339 | mov [cache_ide3_appl_data],eax |
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340 | mov [cache_ide3_appl_sad_size],ecx |
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341 | |||
342 | push edi |
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343 | mov edi,[cache_ide3_data_pointer] |
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344 | call clear_ide_cache |
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345 | pop edi |
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346 | |||
347 | pop ecx |
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348 | ret |
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349 | |||
350 | calculate_for_hd: |
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351 | push eax |
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352 | mov ebx,eax |
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353 | shr eax,9 |
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354 | shl eax,3 |
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355 | sub ebx,eax |
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356 | shr ebx,9 |
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357 | mov ecx,ebx |
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358 | shl ebx,9 |
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359 | pop eax |
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360 | sub eax,ebx |
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361 | ret |
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362 | |||
363 | calculate_for_cd: |
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364 | push eax |
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365 | mov ebx,eax |
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366 | shr eax,11 |
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367 | shl eax,3 |
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368 | sub ebx,eax |
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369 | shr ebx,11 |
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370 | mov ecx,ebx |
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371 | shl ebx,11 |
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372 | pop eax |
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373 | sub eax,ebx |
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374 | ret |
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375 | |||
376 | clear_ide_cache: |
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377 | push eax |
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378 | shl ecx,1 |
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379 | xor eax,eax |
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380 | cld |
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381 | rep stosd |
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382 | pop eax |
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383 | ret |
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384 | |||
385 | end_get_cache: |
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386 | ; mov [cache_ide0_pointer],HD_CACHE |
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387 | ; mov [cache_ide0_system_data],HD_CACHE+65536 |
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388 | ; mov [cache_ide0_system_sad_size],1919 |
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389 | popa |