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Rev 2987 Rev 3232
Line 133... Line 133...
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        push    1
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        push    1
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        push    esp
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        push    esp
136 
        push    edx
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        push    edx
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        push    [.sector_lo+12]
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        push    [.sector_lo+12]
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        mov     ecx, [.cache]
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        mov     ecx, [.cache+16]
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        mov     eax, edi
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        mov     eax, edi
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        shl     eax, 9
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        shl     eax, 9
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        add     eax, [ecx+DISKCACHE.data]
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        add     eax, [ecx+DISKCACHE.data]
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        push    eax
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        push    eax
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        mov     [esi], eax      ; sector number
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        mov     [esi], eax      ; sector number
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        mov     [esi+4], edx    ; sector number
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        mov     [esi+4], edx    ; sector number
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.yes_in_cache_write:
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.yes_in_cache_write:
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        mov     dword [esi+4], 2        ; write - differs from hd
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        mov     dword [esi+8], 2        ; write - differs from hd
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        ret
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        ret
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; This function is intended to replace the old 'write_cache' function.
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; This function is intended to replace the old 'write_cache' function.
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proc write_cache64 uses ecx edx esi edi, disk:dword
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proc write_cache64 uses ecx edx esi edi, disk:dword
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locals
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locals
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cache_chain_started     dd      ?
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cache_chain_started     dd      0
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cache_chain_size        dd      ?
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cache_chain_size        dd      ?
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cache_chain_pos         dd      ?
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cache_chain_pos         dd      ?
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cache_chain_ptr         dd      ?
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cache_chain_ptr         dd      ?
- 
 
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endl
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endl
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saved_esi_pos = 16+12 ; size of local variables + size of registers before esi
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; If there is no cache for this disk, nothing to do.
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; If there is no cache for this disk, nothing to do.
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        cmp     [esi+DISKCACHE.pointer], 0
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        cmp     [esi+DISKCACHE.pointer], 0
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        jz      .flush
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        jz      .flush
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;-----------------------------------------------------------
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;-----------------------------------------------------------
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        mov     [cache_chain_size], 1
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        mov     [cache_chain_size], 1
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        mov     [cache_chain_pos], edi
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        mov     [cache_chain_pos], edi
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.write_cache_chain:
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.write_cache_chain:
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        pusha
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        pusha
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        mov     edi, [cache_chain_pos]
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        mov     edi, [cache_chain_pos]
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        mov     ecx, [ebp-12]
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        mov     ecx, [ebp-saved_esi_pos]
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        shl     edi, 9
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        shl     edi, 9
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        add     edi, [ecx+DISKCACHE.data]
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        add     edi, [ecx+DISKCACHE.data]
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        mov     ecx, [cache_chain_size]
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        mov     ecx, [cache_chain_size]
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        push    ecx
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        push    ecx
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        push    esp     ; numsectors
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        push    esp     ; numsectors
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        mov     [esi+DISK.AppCache.data_size], eax
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        mov     [esi+DISK.AppCache.data_size], eax
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        mov     [esi+DISK.AppCache.pointer], edx
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        mov     [esi+DISK.AppCache.pointer], edx
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        mov     eax, [esi+DISK.SysCache.data_size]
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        mov     eax, [esi+DISK.SysCache.data_size]
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        push    ebx
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        push    ebx
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        call    calculate_for_hd
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        call    calculate_for_hd64
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        pop     ebx
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        pop     ebx
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        add     eax, [esi+DISK.SysCache.pointer]
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        add     eax, [esi+DISK.SysCache.pointer]
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        mov     [esi+DISK.SysCache.data], eax
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        mov     [esi+DISK.SysCache.data], eax
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        rep     stosd
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        rep     stosd
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        pop     edi
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        pop     edi
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        mov     eax, [esi+DISK.AppCache.data_size]
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        mov     eax, [esi+DISK.AppCache.data_size]
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        push    ebx
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        push    ebx
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        call    calculate_for_hd
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        call    calculate_for_hd64
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        pop     ebx
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        pop     ebx
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        add     eax, [esi+DISK.AppCache.pointer]
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        add     eax, [esi+DISK.AppCache.pointer]
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        mov     [esi+DISK.AppCache.data], eax
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        mov     [esi+DISK.AppCache.data], eax
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        mov     [esi+DISK.SysCache.pointer], eax
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        mov     [esi+DISK.SysCache.pointer], eax
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        mov     [esi+DISK.AppCache.pointer], eax
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        mov     [esi+DISK.AppCache.pointer], eax
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        mov     al, 1
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        mov     al, 1
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        ret
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        ret
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- 
 
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calculate_for_hd64:
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        push    eax
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        mov     ebx, eax
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        shr     eax, 9
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        lea     eax, [eax*3]
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        shl     eax, 2
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        sub     ebx, eax
- 
 
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        shr     ebx, 9
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        mov     ecx, ebx
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        shl     ebx, 9
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        pop     eax
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        sub     eax, ebx
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        dec     ecx
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        ret
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; This internal function is called from disk_media_dereference to free the
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; This internal function is called from disk_media_dereference to free the
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; allocated cache, if there is one.
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; allocated cache, if there is one.
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; esi = pointer to DISK structure
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; esi = pointer to DISK structure
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disk_free_cache:
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disk_free_cache: