Draw another tile

2022-06-15 11:14:37 -07:00 · 2022-06-15 11:14:37 -07:00 · 8f947ae232
commit 8f947ae232
parent 0de9c89162
2 changed files with 30 additions and 0 deletions
--- a/homebrew-tutorial/charset.asm
+++ b/homebrew-tutorial/charset.asm
@ -35,4 +35,25 @@ charset:
        .byte   %11111111 ; row 7, color 0
        .byte   %00000000 ; row 7, color 1

+    ; tile 0x02
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+    .byte %00000000
+    .byte %11111111
+
+
+
 charset_end:
--- a/homebrew-tutorial/main.asm
+++ b/homebrew-tutorial/main.asm
@ -85,6 +85,15 @@ start:
    sta VMDATAL
    stz VMDATAH

+    ; write tile 2 to position (4, 8)
+    TILE_X2= 4
+    TILE_Y2= 8
+    ldx #(VRAM_BG1 + (TILE_Y2* 32) + TILE_X2)
+    stx VMADDL
+    lda #$02
+    sta VMDATAL
+    stz VMDATAH
+
    ; Show bg1
    lda #%00000001
    sta TM