simple conio support for GEOS

git-svn-id: svn://svn.cc65.org/cc65/trunk@1093 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-10-27 17:13:22 +00:00
parent 0fe03a4643
commit 8ce6c9bcac
17 changed files with 504 additions and 1 deletions
--- a/libsrc/geos/conio/cursor.s
+++ b/libsrc/geos/conio/cursor.s
@@ -0,0 +1,35 @@
+
+;
+; Maciej 'YTM/Elysium' Witkowiak
+;
+; 27.10.2001
+
+; unsigned char cursor (unsigned char onoff);
+
+	    .export _cursor
+	    .include "../inc/jumptab.inc"
+	    .include "../inc/geossym.inc"
+	    .include "cursor.inc"
+
+_cursor:
+
+	tay			; onoff into Y
+	ldx	#0		; High byte of result
+	ldx	cursor_flag	; Get old value
+	sty	cursor_flag	; Set new value
+	tya
+	beq	L1
+	lda	curHeight	; prepare cursor
+	jsr	InitTextPrompt
+	lda	cursor_x	; position it on screen
+	sta	r4L
+	lda	cursor_x+1
+	sta	r4H
+	lda	cursor_y
+	sec
+	sbc	curHeight
+	sta	r5L
+	lda	#1
+	sta	r3L
+	jsr	PosSprite
+L1:	rts