cc65/libsrc/runtime/ldec.s

;
; Ullrich von Bassewitz, 29.12.1999
;
; CC65 runtime: Decrement eax by value in Y
;

       	.export	       	deceaxy
	.importzp	sreg, tmp1

deceaxy:
	sty	tmp1
	sec
	sbc	tmp1
	sta	tmp1
	txa
	sbc	#0
	tax
	lda	sreg
	sbc	#0
	sta	sreg
	lda	sreg+1
	sbc	#0
	sta	sreg+1
	lda	tmp1
	rts
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`;`
			`; Ullrich von Bassewitz, 29.12.1999`
			`;`
			`; CC65 runtime: Decrement eax by value in Y`
			`;`

			`.export deceaxy`
Several SBC optimizations suggested by Piotr Fusik git-svn-id: svn://svn.cc65.org/cc65/trunk@1121 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-11-17 11:25:12 +00:00			`.importzp sreg, tmp1`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00
			`deceaxy:`
Several SBC optimizations suggested by Piotr Fusik git-svn-id: svn://svn.cc65.org/cc65/trunk@1121 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-11-17 11:25:12 +00:00			`sty tmp1`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`sec`
Several SBC optimizations suggested by Piotr Fusik git-svn-id: svn://svn.cc65.org/cc65/trunk@1121 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-11-17 11:25:12 +00:00			`sbc tmp1`
			`sta tmp1`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`txa`
			`sbc #0`
			`tax`
			`lda sreg`
			`sbc #0`
			`sta sreg`
			`lda sreg+1`
			`sbc #0`
			`sta sreg+1`
Several SBC optimizations suggested by Piotr Fusik git-svn-id: svn://svn.cc65.org/cc65/trunk@1121 b7a2c559-68d2-44c3-8de9-860c34a00d81 2001-11-17 11:25:12 +00:00			`lda tmp1`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`rts`