diff options
Diffstat (limited to 'scroll/include/ppu.s')
| -rw-r--r-- | scroll/include/ppu.s | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/scroll/include/ppu.s b/scroll/include/ppu.s index 34410a0..f62d702 100644 --- a/scroll/include/ppu.s +++ b/scroll/include/ppu.s @@ -1,3 +1,15 @@ +;; WRITE_PPU_DATA is a macro that will write into PPUADDR the given address and +;; into PPUDATA the given byte value. +.macro WRITE_PPU_DATA address, value + bit $2002 + lda #.HIBYTE(address) + sta $2006 + lda #.LOBYTE(address) + sta $2006 + lda #value + sta $2007 +.endmacro + .scope PPU CONTROL = $2000 MASK = $2001 |