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

28 lines
422 B
ArmAsm
Raw Normal View History

;
; Ullrich von Bassewitz, 24.06.2000
;
; void _maperrno(void);
; /* Map an OS error to a system independent error code */
;
.export __maperrno
.import __errno
.import __oserror
.import __osmaperrno
.code
__maperrno:
lda __oserror ; Get the error code
beq @L1 ; Jump if no error
ldx #$00 ; Clear error
stx __oserror
jsr __osmaperrno ; Map the code
sta __errno
stx __errno+1
@L1: rts