added dio interface, standard mouse and joystick functions, osmaperrno

git-svn-id: svn://svn.cc65.org/cc65/trunk@773 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-07-03 20:24:28 +00:00
parent 6a988b4859
commit 823329443f
16 changed files with 871 additions and 11 deletions
--- a/libsrc/geos/mousesprite/readjoy.s
+++ b/libsrc/geos/mousesprite/readjoy.s
@@ -0,0 +1,40 @@
+;
+; Ullrich von Bassewitz, 23.09.1998
+;
+; unsigned readjoy (unsigned char joy);
+;
+
+     	.export		_readjoy
+
+	.include	"../inc/geossym.inc"
+
+.proc	_readjoy
+
+	tax			; Joystick number into X
+	bne    	joy2
+
+; Read joystick 1
+
+joy1:	lda	#$7F
+     	sei
+     	sta	cia1base
+     	lda	cia1base+1
+     	cli
+     	and	#$1F
+     	eor	#$1F
+     	rts
+
+; Read joystick 2
+
+joy2:	ldx	#0
+	lda	#$E0
+	ldy	#$FF
+	sta	cia1base+2
+	lda	cia1base+1
+	sty	cia1base+2
+	and	#$1F
+	eor	#$1F
+	rts
+
+.endproc
+