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cc65/libsrc/common/maperrno.s
cuz 9468b05231 Separated _maperrno and _errno
git-svn-id: svn://svn.cc65.org/cc65/trunk@121 b7a2c559-68d2-44c3-8de9-860c34a00d81
2000-06-24 09:10:16 +00:00

28 lines
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ArmAsm

;
; 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