raster time display

2025-04-18 18:39:09 -05:00 · 2025-04-18 18:39:09 -05:00 · 84eb84b89f
parent dc42a1d910
commit 84eb84b89f
1 changed files with 18 additions and 0 deletions
--- a/src/asm/6502/nes/test.s
+++ b/src/asm/6502/nes/test.s
@ -85,9 +85,27 @@ startPlayer:
 loop:
  lda pendingTick
  beq loop
+  ; wait a bit so we can see the raster
+  ldy #$ff
+  ldx #$03
+
+- dey
+  bne -
+  dex
+  bne -
+
+  ; raster time display
+  lda #$0f
+  sta PPUMASK
+
  jsr fcsTick
  lda #0
  sta pendingTick
+
+  ; raster time display end
+  lda #$0e
+  sta PPUMASK
+
  jmp loop

 ; interrupt handlers