ReC98/libs/BorlandC/reada.asm

68 lines
1.0 KiB
NASM

; int _CType _read( int fd, void *buf, unsigned len )
public __rtl_write
__rtl_read proc
@@fd = word ptr dPtrSize + 2
@@buf = DPTR_ dPtrSize + 4
@@len = word ptr dPtrSize + 4 + dPtrSize
push bp
mov bp, sp
push si
push di
mov bx, [bp+@@fd]
add bx, bx
test byte ptr _openfd[bx], 2
jz short @@readDo
mov ax, 5
push ax
jmp short @@readDenied
@@readDo:
pushDS_
mov ah, 3Fh
mov bx, [bp+@@fd]
mov cx, [bp+@@len]
LDS_ dx, [bp+@@buf]
int 21h
popDS_
jb short @@readFailed
jmp short @@readRet
@@readFailed:
push ax
@@readDenied:
call __IOERROR
@@readRet:
pop di
pop si
pop bp
ret
__rtl_read endp
; int __cdecl _read(int fd, const void *buf, unsigned len)
public __read
__read proc
@@fd = word ptr dPtrSize + 2
@@buf = DPTR_ dPtrSize + 4
@@len = word ptr dPtrSize + 4 + dPtrSize
push bp
mov bp, sp
push si
push di
push [bp+@@len]
if LDATA
push word ptr [bp+@@buf+2]
endif
push word ptr [bp+@@buf]
push [bp+@@fd]
call __rtl_read
add sp, 4 + dPtrSize
pop di
pop si
pop bp
ret
__read endp