search for: getcachesector

...ndex 5975557..b8eda9f 100644 --- a/core/cache.inc +++ b/core/cache.inc @@ -43,6 +43,8 @@ initcache: ; and if it is already there, return a pointer in GS:SI ; otherwise load it and return said pointer. ; +; DX Cache priority; 0 -> store as least recently used +; ; Assumes CS == DS. ; getcachesector: @@ -82,6 +84,10 @@ getcachesector: ; Update LRU, then compute buffer address TRACER 'H' + ; Skip LRU update if DX == 0 + and dx,dx ; Set ZF + jz .hit_no_lru + ; Remove from current position in the list mov bx,[si+cptr.prev] mov di,[si+cptr.next] @@ -95,6 +101,8 @@ getcac...

...si + push es + push fs ; Using fs to store the current es (from COMBOOT) + push gs + mov bp,es + mov fs,bp + cmp si,0 + jz .fail +.load_handle: + mov eax,[ds:si+file_sector] ; Current sector + mov ebx,[ds:si+file_bytesleft] ; Current offset + cmp eax,0 + jz .fail +.fetch_cache: + call getcachesector +.move_current: + add si,bx ; Resume last position in sector + mov ecx,SECTOR_SIZE ; 0 out high part + sub cx,bx + shr cx,5 ; Number of entries left +.scanentry: + cmp byte [gs:si],0 + jz .fail + cmp word [gs:si+11],0Fh ; Long filename + jne .short_entry + +.vfat_entry: + push eax + push...

...directory handle's data is incremented to reflect a name read. +; +readdir: + push ecx + push si + push gs + cmp si,0 + jz .fail +.load_handle: + mov eax,[ds:si+file_sector] ; Current sector + mov ebx,[ds:si+file_bytesleft] ; Current offset + cmp eax,0 + jz .fail +.fetch_cache: + call getcachesector +.move_current: + add si,bx ; Resume last position in sector + mov ecx,SECTOR_SIZE ; 0 out high part + sub cx,bx + shr cx,5 ; Number of entries left +.scanentry: + cmp byte [gs:si],0 + jz .fail + cmp word [gs:si+11],0Fh ; Long filename + jne .short_entry + +.vfat_entry: + push eax + push...