cc65/libsrc/runtime/decsp4.s

;
; Ullrich von Bassewitz, 25.10.2000
;
; CC65 runtime: Decrement the stackpointer by 4
;

       	.export	      	decsp4
       	.importzp	sp

.proc	decsp4

	lda	sp
	sec
	sbc	#4
	sta	sp
	bcc	@L1
	rts

@L1:	dec	sp+1
	rts

.endproc
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00			`;`
			`; Ullrich von Bassewitz, 25.10.2000`
			`;`
			`; CC65 runtime: Decrement the stackpointer by 4`
			`;`

			`.export decsp4`
Rewrite the decsp and subysp functions now since they are used more often. git-svn-id: svn://svn.cc65.org/cc65/trunk@665 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-03-24 16:15:01 +00:00			`.importzp sp`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00
			`.proc decsp4`

Rewrite the decsp and subysp functions now since they are used more often. git-svn-id: svn://svn.cc65.org/cc65/trunk@665 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-03-24 16:15:01 +00:00			`lda sp`
			`sec`
			`sbc #4`
			`sta sp`
			`bcc @L1`
			`rts`

			`@L1: dec sp+1`
			`rts`
More module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@393 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-25 19:53:22 +00:00
			`.endproc`




Rewrite the decsp and subysp functions now since they are used more often. git-svn-id: svn://svn.cc65.org/cc65/trunk@665 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-03-24 16:15:01 +00:00