1
0
mirror of https://github.com/cc65/cc65.git synced 2024-12-23 04:30:10 +00:00
cc65/libsrc/atari/close.s

30 lines
497 B
ArmAsm
Raw Normal View History

;
; Christian Groessler, May-2000
;
; int __fastcall__ close(int fd);
;
.include "atari.inc"
.export _close
.import __do_oserror,popax,__oserror
.import fdtoiocb_down,__inviocb
.proc _close
jsr fdtoiocb_down ; get iocb index into X and decr. usage count
bmi inverr
bne ok ; not last one -> don't close yet
lda #CLOSE
sta ICCOM,x
jsr CIOV
bmi closerr
ok: ldx #0
stx __oserror ; clear system specific error code
txa
rts
inverr: jmp __inviocb
closerr:jmp __do_oserror
.endproc