WebSVN – Kolibri OS – Diff – /kernel/trunk/fs/fat32.inc



;----------------------------------------------------------------
;
;  fs_HdReadFolder - LFN variant for reading hard disk folder
;
;  esi  points to filename
;  ebx  pointer to structure 32-bit number = first wanted block, 0+
;                          & flags (bitfields)
; flags: bit 0: 0=ANSI names, 1=UNICODE names
;  ecx  number of blocks to read, 0+
;  edx  mem location to return data
;
;  ret ebx = blocks read or 0xffffffff folder not found
;      eax = 0 ok read or other = errormsg
;
;--------------------------------------------------------------
fs_HdReadFolder:
 
        mov     eax, [ROOT_CLUSTER]
        push    edi
        cmp     byte [esi], 0
        jz      .doit
        call    hd_find_lfn

.doit:
        push    esi ecx
        push    ebp
        sub     esp, 262*2      ; reserve space for LFN
        mov     ebp, esp
        push    dword [ebx+4]   ; for fat_get_name: read ANSI/UNICODE name
        mov     ebx, [ebx]
; init header
        push    eax ecx
        mov     edi, edx
        mov     ecx, 32/4
        xor     eax, eax

Rev 77	Rev 78
Line 3200...	Line 3200...
3200	;----------------------------------------------------------------	3200	;----------------------------------------------------------------
3201	;	3201	;
3202	; fs_HdReadFolder - LFN variant for reading hard disk folder	3202	; fs_HdReadFolder - LFN variant for reading hard disk folder
3203	;	3203	;
3204	; esi points to filename	3204	; esi points to filename
3205	; ebx pointer to 32-bit number = first wanted block, 0+	3205	; ebx pointer to structure 32-bit number = first wanted block, 0+
-		3206	; & flags (bitfields)
-		3207	; flags: bit 0: 0=ANSI names, 1=UNICODE names
3206	; ecx number of blocks to read, 0+	3208	; ecx number of blocks to read, 0+
3207	; edx mem location to return data	3209	; edx mem location to return data
3208	;	3210	;
3209	; ret ebx = blocks read or 0xffffffff folder not found	3211	; ret ebx = blocks read or 0xffffffff folder not found
3210	; eax = 0 ok read or other = errormsg	3212	; eax = 0 ok read or other = errormsg
3211	;	3213	;
3212	;--------------------------------------------------------------	3214	;--------------------------------------------------------------
3213	fs_HdReadFolder:	3215	fs_HdReadFolder:
3214	mov ebx, [ebx]	-
3215	mov eax, [ROOT_CLUSTER]	3216	mov eax, [ROOT_CLUSTER]
3216	push edi	3217	push edi
3217	cmp byte [esi], 0	3218	cmp byte [esi], 0
3218	jz .doit	3219	jz .doit
3219	call hd_find_lfn	3220	call hd_find_lfn
Line 3235...	Line 3236...
3235	.doit:	3236	.doit:
3236	push esi ecx	3237	push esi ecx
3237	push ebp	3238	push ebp
3238	sub esp, 262*2 ; reserve space for LFN	3239	sub esp, 262*2 ; reserve space for LFN
3239	mov ebp, esp	3240	mov ebp, esp
3240	push 1 ; for fat_get_name: read UNICODE name	3241	push dword [ebx+4] ; for fat_get_name: read ANSI/UNICODE name
-		3242	mov ebx, [ebx]
3241	; init header	3243	; init header
3242	push eax ecx	3244	push eax ecx
3243	mov edi, edx	3245	mov edi, edx
3244	mov ecx, 32/4	3246	mov ecx, 32/4
3245	xor eax, eax	3247	xor eax, eax

Subversion Repositories Kolibri OS

(root)/kernel/trunk/fs/fat32.inc @ 431 – Rev 77 → 78