mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 04:30:10 +00:00
30 lines
511 B
ArmAsm
30 lines
511 B
ArmAsm
|
;
|
||
|
|
; write(iocb, buf, nbytes)->nbytes written
|
||
|
|
;
|
||
|
|
.include "atari.inc"
|
||
|
|
.import __rwsetup,__do_oserror,__inviocb,__oserror
|
||
|
|
.export _write
|
||
|
|
_write:
|
||
|
|
jsr __rwsetup ; do common setup
|
||
|
|
beq write9 ; if size 0, it's a no-op
|
||
|
|
cpx #$FF ; invalid iocb?
|
||
|
|
beq _inviocb
|
||
|
|
lda #PUTCHR
|
||
|
|
sta ICCOM,x
|
||
|
|
jsr CIOV
|
||
|
|
bpl write9
|
||
|
|
jmp __do_oserror ; update errno
|
||
|
|
|
||
|
|
write9:
|
||
|
|
lda ICBLL,x ; get buf len lo
|
||
|
|
pha
|
||
|
|
lda ICBLH,x ; buf len hi
|
||
|
|
tax
|
||
|
|
lda #0
|
||
|
|
sta __oserror ; clear system dependend error code
|
||
|
|
pla
|
||
|
|
rts
|
||
|
|
|
||
|
|
_inviocb:
|
||
|
|
jmp __inviocb
|