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
parent 579491e8a4
commit 53dd513176
847 changed files with 91345 additions and 0 deletions
--- a/libsrc/runtime/asreax2.s
+++ b/libsrc/runtime/asreax2.s
@@ -0,0 +1,26 @@
+;
+; Ullrich von Bassewitz, 06.08.1998
+;
+; CC65 runtime: Scale the 32 bit primary register by 4
+;
+
+	.export		asreax2
+	.importzp	sreg, tmp1
+
+asreax2:
+	stx	tmp1
+       	ldx    	sreg+1
+       	cpx	#$80  		; Get bit 7 into carry
+       	ror	sreg+1
+       	ror	sreg
+       	ror	tmp1
+       	ror	a
+       	ldx    	sreg+1
+       	cpx	#$80  		; Get bit 7 into carry
+       	ror	sreg+1
+       	ror	sreg
+       	ror	tmp1
+       	ror	a
+       	ldx	tmp1
+       	rts
+