Data commit

Task/Colour-bars-Display/6502-Assembly/colour-bars-display.6502

@@ -0,0 +1,50 @@
+lda #0
+tax
+tay        ;clear regs
+
+;video ram on Easy6502 is four pages ranging from $0200-$0500
+
+loop:
+sta $0200,x
+sta $0220,x
+sta $0240,x
+sta $0260,x
+sta $0280,x
+sta $02A0,x
+sta $02C0,x
+sta $02E0,x
+
+sta $0300,x
+sta $0320,x
+sta $0340,x
+sta $0360,x
+sta $0380,x
+sta $03A0,x
+sta $03C0,x
+sta $03E0,x
+
+sta $0400,x
+sta $0420,x
+sta $0440,x
+sta $0460,x
+sta $0480,x
+sta $04A0,x
+sta $04C0,x
+sta $04E0,x
+
+sta $0500,x
+sta $0520,x
+sta $0540,x
+sta $0560,x
+sta $0580,x
+sta $05A0,x
+sta $05C0,x
+sta $05E0,x
+
+inx
+txa      ;effectively increment A
+cpx #$20 ;32 columns of video memory
+beq exit
+jmp loop
+exit:
+brk       ;on easy6502 this terminates a program.