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git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/common/errno.s

@@ -0,0 +1,33 @@
+;
+; Ullrich von Bassewitz, 06.06.1998
+;
+; int _errno;
+;
+; void _maperrno(void);
+; /* Map an OS error to a system independent error code */
+;
+
+	.export		__maperrno
+      	.export		__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
+
+
+.bss
+
+__errno:
+	.word	0
+