cc65/libsrc/runtime/lbneg.s

;
; Ullrich von Bassewitz, 06.08.1998
;
; CC65 runtime: boolean negation for longs
;

 	.export		bnegeax
	.import		return0, return1
	.importzp	sreg, tmp1

bnegeax:
	stx	tmp1
	ldx	#0		; High byte of result
	ora	tmp1
	ora	sreg
	ora	sreg+1
	bne	@L0
	lda	#1
	rts

@L0:	txa			; X is zero
	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, 06.08.1998`
			`;`
			`; CC65 runtime: boolean negation for longs`
			`;`

			`.export bnegeax`
			`.import return0, return1`
Minor optimization git-svn-id: svn://svn.cc65.org/cc65/trunk@46 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-06-10 16:05:59 +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
			`bnegeax:`
Minor optimization git-svn-id: svn://svn.cc65.org/cc65/trunk@46 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-06-10 16:05:59 +00:00			`stx tmp1`
			`ldx #0 ; High byte of result`
			`ora tmp1`
			`ora sreg`
			`ora sreg+1`
			`bne @L0`
			`lda #1`
			`rts`

			`@L0: txa ; X is zero`
			`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