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750 victor 1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2 
;;                                                              ;;
2465 Serge 3 
;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
750 victor 4 
;; Distributed under terms of the GNU General Public License    ;;
5 
;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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580 mario79 8 
;**************************************************************************
9 
;
10 
;   [cache_ide[X]_pointer]
11 
;   or [cache_ide[X]_data_pointer]  first entry in cache list
12 
;
13 
;            +0   - lba sector
14 
;            +4   - state of cache sector
15 
;                   0 = empty
16 
;                   1 = used for read  ( same as in hd )
17 
;                   2 = used for write ( differs from hd )
18 
;
19 
;  [cache_ide[X]_system_data]
20 
;  or [cache_ide[x]_appl_data] - cache entries
21 
;
22 
;**************************************************************************
593 mikedld 23 
 
750 victor 24 
$Revision: 3908 $
593 mikedld 25 
 
580 mario79 26 
align 4
585 mario79 27 
find_empty_slot_CD_cache:
28 
;-----------------------------------------------------------
29 
; find empty or read slot, flush cache if next 10% is used by write
30 
; output : edi = cache slot
31 
;-----------------------------------------------------------
32 
.search_again:
3555 Serge 33 
        call    cd_calculate_cache_3
585 mario79 34 
.search_for_empty:
3555 Serge 35 
        inc     edi
36 
        call    cd_calculate_cache_4
37 
        jbe     .inside_cache
2434 Serge 38 
        mov     edi, 1
585 mario79 39 
.inside_cache:
3555 Serge 40 
        call    cd_calculate_cache_5
41 
        ret
585 mario79 42 
;--------------------------------------------------------------------
43 
clear_CD_cache:
3555 Serge 44 
        pusha
585 mario79 45 
.ide0:
2434 Serge 46 
        xor     eax, eax
47 
        cmp     [cdpos], 1
3555 Serge 48 
        jne     .ide1
2434 Serge 49 
        mov     [cache_ide0_search_start], eax
50 
        mov     ecx, [cache_ide0_system_sad_size]
51 
        mov     edi, [cache_ide0_pointer]
3555 Serge 52 
        call    .clear
2434 Serge 53 
        mov     [cache_ide0_appl_search_start], eax
54 
        mov     ecx, [cache_ide0_appl_sad_size]
55 
        mov     edi, [cache_ide0_data_pointer]
3555 Serge 56 
        jmp     .continue
585 mario79 57 
.ide1:
2434 Serge 58 
        cmp     [cdpos], 2
3555 Serge 59 
        jne     .ide2
2434 Serge 60 
        mov     [cache_ide1_search_start], eax
61 
        mov     ecx, [cache_ide1_system_sad_size]
62 
        mov     edi, [cache_ide1_pointer]
3555 Serge 63 
        call    .clear
2434 Serge 64 
        mov     [cache_ide1_appl_search_start], eax
65 
        mov     ecx, [cache_ide1_appl_sad_size]
66 
        mov     edi, [cache_ide1_data_pointer]
3555 Serge 67 
        jmp     .continue
585 mario79 68 
.ide2:
2434 Serge 69 
        cmp     [cdpos], 3
3555 Serge 70 
        jne     .ide3
2434 Serge 71 
        mov     [cache_ide2_search_start], eax
72 
        mov     ecx, [cache_ide2_system_sad_size]
73 
        mov     edi, [cache_ide2_pointer]
3555 Serge 74 
        call    .clear
2434 Serge 75 
        mov     [cache_ide2_appl_search_start], eax
76 
        mov     ecx, [cache_ide2_appl_sad_size]
77 
        mov     edi, [cache_ide2_data_pointer]
3555 Serge 78 
        jmp     .continue
585 mario79 79 
.ide3:
2434 Serge 80 
        mov     [cache_ide3_search_start], eax
81 
        mov     ecx, [cache_ide3_system_sad_size]
82 
        mov     edi, [cache_ide3_pointer]
3555 Serge 83 
        call    .clear
2434 Serge 84 
        mov     [cache_ide3_appl_search_start], eax
85 
        mov     ecx, [cache_ide3_appl_sad_size]
86 
        mov     edi, [cache_ide3_data_pointer]
585 mario79 87 
.continue:
3555 Serge 88 
        call    .clear
89 
        popa
90 
        ret
585 mario79 91 
.clear:
2434 Serge 92 
        shl     ecx, 1
3555 Serge 93 
        cld
94 
        rep stosd
95 
        ret
585 mario79 96 
;--------------------------------------------------------------------
97 
align 4
98 
cd_calculate_cache:
99 
; 1 - IDE0 ... 4 - IDE3
100 
.ide0:
2434 Serge 101 
        cmp     [cdpos], 1
3555 Serge 102 
        jne     .ide1
2434 Serge 103 
        cmp     [cd_appl_data], 0
3555 Serge 104 
        jne     .ide0_appl_data
2434 Serge 105 
        mov     ecx, [cache_ide0_system_sad_size]
106 
        mov     esi, [cache_ide0_pointer]
3555 Serge 107 
        ret
585 mario79 108 
.ide0_appl_data:
2434 Serge 109 
        mov     ecx, [cache_ide0_appl_sad_size]
110 
        mov     esi, [cache_ide0_data_pointer]
3555 Serge 111 
        ret
585 mario79 112 
.ide1:
2434 Serge 113 
        cmp     [cdpos], 2
3555 Serge 114 
        jne     .ide2
2434 Serge 115 
        cmp     [cd_appl_data], 0
3555 Serge 116 
        jne     .ide1_appl_data
2434 Serge 117 
        mov     ecx, [cache_ide1_system_sad_size]
118 
        mov     esi, [cache_ide1_pointer]
3555 Serge 119 
        ret
585 mario79 120 
.ide1_appl_data:
2434 Serge 121 
        mov     ecx, [cache_ide1_appl_sad_size]
122 
        mov     esi, [cache_ide1_data_pointer]
3555 Serge 123 
        ret
585 mario79 124 
.ide2:
2434 Serge 125 
        cmp     [cdpos], 3
3555 Serge 126 
        jne     .ide3
2434 Serge 127 
        cmp     [cd_appl_data], 0
3555 Serge 128 
        jne     .ide2_appl_data
2434 Serge 129 
        mov     ecx, [cache_ide2_system_sad_size]
130 
        mov     esi, [cache_ide2_pointer]
3555 Serge 131 
        ret
585 mario79 132 
.ide2_appl_data:
2434 Serge 133 
        mov     ecx, [cache_ide2_appl_sad_size]
134 
        mov     esi, [cache_ide2_data_pointer]
3555 Serge 135 
        ret
585 mario79 136 
.ide3:
2434 Serge 137 
        cmp     [cd_appl_data], 0
3555 Serge 138 
        jne     .ide3_appl_data
2434 Serge 139 
        mov     ecx, [cache_ide3_system_sad_size]
140 
        mov     esi, [cache_ide3_pointer]
3555 Serge 141 
        ret
585 mario79 142 
.ide3_appl_data:
2434 Serge 143 
        mov     ecx, [cache_ide3_appl_sad_size]
144 
        mov     esi, [cache_ide3_data_pointer]
3555 Serge 145 
        ret
585 mario79 146 
;--------------------------------------------------------------------
147 
align 4
148 
cd_calculate_cache_1:
149 
; 1 - IDE0 ... 4 - IDE3
150 
.ide0:
2434 Serge 151 
        cmp     [cdpos], 1
3555 Serge 152 
        jne     .ide1
2434 Serge 153 
        cmp     [cd_appl_data], 0
3555 Serge 154 
        jne     .ide0_appl_data
2434 Serge 155 
        mov     esi, [cache_ide0_pointer]
3555 Serge 156 
        ret
585 mario79 157 
.ide0_appl_data:
2434 Serge 158 
        mov     esi, [cache_ide0_data_pointer]
3555 Serge 159 
        ret
585 mario79 160 
.ide1:
2434 Serge 161 
        cmp     [cdpos], 2
3555 Serge 162 
        jne     .ide2
2434 Serge 163 
        cmp     [cd_appl_data], 0
3555 Serge 164 
        jne     .ide1_appl_data
2434 Serge 165 
        mov     esi, [cache_ide1_pointer]
3555 Serge 166 
        ret
585 mario79 167 
.ide1_appl_data:
2434 Serge 168 
        mov     esi, [cache_ide1_data_pointer]
3555 Serge 169 
        ret
585 mario79 170 
.ide2:
2434 Serge 171 
        cmp     [cdpos], 3
3555 Serge 172 
        jne     .ide3
2434 Serge 173 
        cmp     [cd_appl_data], 0
3555 Serge 174 
        jne     .ide2_appl_data
2434 Serge 175 
        mov     esi, [cache_ide2_pointer]
3555 Serge 176 
        ret
585 mario79 177 
.ide2_appl_data:
2434 Serge 178 
        mov     esi, [cache_ide2_data_pointer]
3555 Serge 179 
        ret
585 mario79 180 
.ide3:
2434 Serge 181 
        cmp     [cd_appl_data], 0
3555 Serge 182 
        jne     .ide3_appl_data
2434 Serge 183 
        mov     esi, [cache_ide3_pointer]
3555 Serge 184 
        ret
585 mario79 185 
.ide3_appl_data:
2434 Serge 186 
        mov     esi, [cache_ide3_data_pointer]
3555 Serge 187 
        ret
585 mario79 188 
;--------------------------------------------------------------------
189 
align 4
190 
cd_calculate_cache_2:
191 
; 1 - IDE0 ... 4 - IDE3
192 
.ide0:
2434 Serge 193 
        cmp     [cdpos], 1
3555 Serge 194 
        jne     .ide1
2434 Serge 195 
        cmp     [cd_appl_data], 0
3555 Serge 196 
        jne     .ide0_appl_data
2434 Serge 197 
        mov     eax, [cache_ide0_system_data]
3555 Serge 198 
        ret
585 mario79 199 
.ide0_appl_data:
2434 Serge 200 
        mov     eax, [cache_ide0_appl_data]
3555 Serge 201 
        ret
585 mario79 202 
.ide1:
2434 Serge 203 
        cmp     [cdpos], 2
3555 Serge 204 
        jne     .ide2
2434 Serge 205 
        cmp     [cd_appl_data], 0
3555 Serge 206 
        jne     .ide1_appl_data
2434 Serge 207 
        mov     eax, [cache_ide1_system_data]
3555 Serge 208 
        ret
585 mario79 209 
.ide1_appl_data:
2434 Serge 210 
        mov     eax, [cache_ide1_appl_data]
3555 Serge 211 
        ret
585 mario79 212 
.ide2:
2434 Serge 213 
        cmp     [cdpos], 3
3555 Serge 214 
        jne     .ide3
2434 Serge 215 
        cmp     [cd_appl_data], 0
3555 Serge 216 
        jne     .ide2_appl_data
2434 Serge 217 
        mov     eax, [cache_ide2_system_data]
3555 Serge 218 
        ret
585 mario79 219 
.ide2_appl_data:
2434 Serge 220 
        mov     eax, [cache_ide2_appl_data]
3555 Serge 221 
        ret
585 mario79 222 
.ide3:
2434 Serge 223 
        cmp     [cd_appl_data], 0
3555 Serge 224 
        jne     .ide3_appl_data
2434 Serge 225 
        mov     eax, [cache_ide3_system_data]
3555 Serge 226 
        ret
585 mario79 227 
.ide3_appl_data:
2434 Serge 228 
        mov     eax, [cache_ide3_appl_data]
3555 Serge 229 
        ret
585 mario79 230 
;--------------------------------------------------------------------
231 
align 4
232 
cd_calculate_cache_3:
233 
;    mov   ecx,cache_max*10/100
234 
;    mov   edi,[cache_search_start]
235 
 
236 
; 1 - IDE0 ... 4 - IDE3
237 
.ide0:
2434 Serge 238 
        cmp     [cdpos], 1
3555 Serge 239 
        jne     .ide1
2434 Serge 240 
        cmp     [cd_appl_data], 0
3555 Serge 241 
        jne     .ide0_appl_data
2434 Serge 242 
        mov     edi, [cache_ide0_search_start]
3555 Serge 243 
        ret
585 mario79 244 
.ide0_appl_data:
2434 Serge 245 
        mov     edi, [cache_ide0_appl_search_start]
3555 Serge 246 
        ret
585 mario79 247 
.ide1:
2434 Serge 248 
        cmp     [cdpos], 2
3555 Serge 249 
        jne     .ide2
2434 Serge 250 
        cmp     [cd_appl_data], 0
3555 Serge 251 
        jne     .ide1_appl_data
2434 Serge 252 
        mov     edi, [cache_ide1_search_start]
3555 Serge 253 
        ret
585 mario79 254 
.ide1_appl_data:
2434 Serge 255 
        mov     edi, [cache_ide1_appl_search_start]
3555 Serge 256 
        ret
585 mario79 257 
.ide2:
2434 Serge 258 
        cmp     [cdpos], 3
3555 Serge 259 
        jne     .ide3
2434 Serge 260 
        cmp     [cd_appl_data], 0
3555 Serge 261 
        jne     .ide2_appl_data
2434 Serge 262 
        mov     edi, [cache_ide2_search_start]
3555 Serge 263 
        ret
585 mario79 264 
.ide2_appl_data:
2434 Serge 265 
        mov     edi, [cache_ide2_appl_search_start]
3555 Serge 266 
        ret
585 mario79 267 
.ide3:
2434 Serge 268 
        cmp     [cd_appl_data], 0
3555 Serge 269 
        jne     .ide3_appl_data
2434 Serge 270 
        mov     edi, [cache_ide3_search_start]
3555 Serge 271 
        ret
585 mario79 272 
.ide3_appl_data:
2434 Serge 273 
        mov     edi, [cache_ide3_appl_search_start]
3555 Serge 274 
        ret
585 mario79 275 
;--------------------------------------------------------------------
276 
align 4
277 
cd_calculate_cache_4:
278 
;    cmp   edi,cache_max
279 
; 1 - IDE0 ... 4 - IDE3
280 
.ide0:
2434 Serge 281 
        cmp     [cdpos], 1
3555 Serge 282 
        jne     .ide1
2434 Serge 283 
        cmp     [cd_appl_data], 0
3555 Serge 284 
        jne     .ide0_appl_data
2434 Serge 285 
        cmp     edi, [cache_ide0_system_sad_size]
3555 Serge 286 
        ret
585 mario79 287 
.ide0_appl_data:
2434 Serge 288 
        cmp     edi, [cache_ide0_appl_sad_size]
3555 Serge 289 
        ret
585 mario79 290 
.ide1:
2434 Serge 291 
        cmp     [cdpos], 2
3555 Serge 292 
        jne     .ide2
2434 Serge 293 
        cmp     [cd_appl_data], 0
3555 Serge 294 
        jne     .ide1_appl_data
2434 Serge 295 
        cmp     edi, [cache_ide1_system_sad_size]
3555 Serge 296 
        ret
585 mario79 297 
.ide1_appl_data:
2434 Serge 298 
        cmp     edi, [cache_ide1_appl_sad_size]
3555 Serge 299 
        ret
585 mario79 300 
.ide2:
2434 Serge 301 
        cmp     [cdpos], 3
3555 Serge 302 
        jne     .ide3
2434 Serge 303 
        cmp     [cd_appl_data], 0
3555 Serge 304 
        jne     .ide2_appl_data
2434 Serge 305 
        cmp     edi, [cache_ide2_system_sad_size]
3555 Serge 306 
        ret
585 mario79 307 
.ide2_appl_data:
2434 Serge 308 
        cmp     edi, [cache_ide2_appl_sad_size]
3555 Serge 309 
        ret
585 mario79 310 
.ide3:
2434 Serge 311 
        cmp     [cd_appl_data], 0
3555 Serge 312 
        jne     .ide3_appl_data
2434 Serge 313 
        cmp     edi, [cache_ide3_system_sad_size]
3555 Serge 314 
        ret
585 mario79 315 
.ide3_appl_data:
2434 Serge 316 
        cmp     edi, [cache_ide3_appl_sad_size]
3555 Serge 317 
        ret
585 mario79 318 
;--------------------------------------------------------------------
319 
align 4
320 
cd_calculate_cache_5:
321 
;    mov   [cache_search_start],edi
322 
; 1 - IDE0 ... 4 - IDE3
323 
.ide0:
2434 Serge 324 
        cmp     [cdpos], 1
3555 Serge 325 
        jne     .ide1
2434 Serge 326 
        cmp     [cd_appl_data], 0
3555 Serge 327 
        jne     .ide0_appl_data
2434 Serge 328 
        mov     [cache_ide0_search_start], edi
3555 Serge 329 
        ret
585 mario79 330 
.ide0_appl_data:
2434 Serge 331 
        mov     [cache_ide0_appl_search_start], edi
3555 Serge 332 
        ret
585 mario79 333 
.ide1:
2434 Serge 334 
        cmp     [cdpos], 2
3555 Serge 335 
        jne     .ide2
2434 Serge 336 
        cmp     [cd_appl_data], 0
3555 Serge 337 
        jne     .ide1_appl_data
2434 Serge 338 
        mov     [cache_ide1_search_start], edi
3555 Serge 339 
        ret
585 mario79 340 
.ide1_appl_data:
2434 Serge 341 
        mov     [cache_ide1_appl_search_start], edi
3555 Serge 342 
        ret
585 mario79 343 
.ide2:
2434 Serge 344 
        cmp     [cdpos], 3
3555 Serge 345 
        jne     .ide3
2434 Serge 346 
        cmp     [cd_appl_data], 0
3555 Serge 347 
        jne     .ide2_appl_data
2434 Serge 348 
        mov     [cache_ide2_search_start], edi
3555 Serge 349 
        ret
585 mario79 350 
.ide2_appl_data:
2434 Serge 351 
        mov     [cache_ide2_appl_search_start], edi
3555 Serge 352 
        ret
585 mario79 353 
.ide3:
2434 Serge 354 
        cmp     [cd_appl_data], 0
3555 Serge 355 
        jne     .ide3_appl_data
2434 Serge 356 
        mov     [cache_ide3_search_start], edi
3555 Serge 357 
        ret
585 mario79 358 
.ide3_appl_data:
2434 Serge 359 
        mov     [cache_ide3_appl_search_start], edi
3555 Serge 360 
        ret
585 mario79 361 
;--------------------------------------------------------------------
362 
;align 4
363 
;calculate_linear_to_real:
364 
;    shr eax, 12
365 
;    mov eax, [page_tabs+eax*4]
366 
;    and eax, 0xFFFFF000
367 
;    ret