c64 autoload viewer

2019-10-22 23:59:06 +02:00
parent a8e0beba6d
commit 796db2003d
4 changed files with 308 additions and 0 deletions
--- a/misc/c64viewer/test.asm
+++ b/misc/c64viewer/test.asm
@@ -0,0 +1,29 @@
+; vim:ts=8 sw=8:
+.word $0801
+.org  $0801
+	.word next, 1911	; next basic line and line number
+	.byte $9e,"2061",0	; SYS2061 
+next:	.word 0			; end of basic program
+start:
+	jsr $e544
+	lda #$00
+	sta $d020	; border
+	sta $d021	; background
+	ldx #$00
+loop:
+	lda text,x
+	sec
+	sbc #$40
+	sta $0400+40*12,x
+	inx
+	cpx #40
+	bne loop
+wait:
+	;jmp wait
+	;jsr $ffcf
+	jsr $ffe4	; GETIN
+	beq wait
+	rts
+
+text:
+.byte "              HELLO WORLD               "