mirror of https://github.com/cc65/cc65.git
44 lines
895 B
ArmAsm
44 lines
895 B
ArmAsm
;
|
|
; jede jede@oric.org 2017-01-22
|
|
;
|
|
|
|
.export _read
|
|
|
|
.import popax
|
|
|
|
.include "zeropage.inc"
|
|
.include "telestrat.inc"
|
|
|
|
;int read (int fd, void* buf, unsigned count);
|
|
|
|
.proc _read
|
|
|
|
sta ptr1 ; count
|
|
stx ptr1+1 ; count
|
|
jsr popax ; get buf
|
|
|
|
sta PTR_READ_DEST
|
|
stx PTR_READ_DEST+1
|
|
sta ptr2 ; in order to calculate nb of bytes read
|
|
stx ptr2+1
|
|
|
|
jsr popax ; get FD
|
|
|
|
tax ; send FD to X
|
|
|
|
lda ptr1
|
|
ldy ptr1+1
|
|
BRK_TELEMON XFREAD
|
|
; compute nb of bytes read
|
|
sec
|
|
lda PTR_READ_DEST
|
|
sbc ptr2
|
|
pha
|
|
lda PTR_READ_DEST+1
|
|
sbc ptr2+1
|
|
tax
|
|
pla
|
|
|
|
rts
|
|
.endproc
|