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| author | Miquel Sabaté Solà <mssola@mssola.com> | 2026-04-09 13:30:34 +0200 |
|---|---|---|
| committer | Miquel Sabaté Solà <mssola@mssola.com> | 2026-04-10 13:33:30 +0200 |
| commit | 00e470a4c8cefcc8e9514c6965dcd61f448d10e8 (patch) | |
| tree | e9a63c8797f25292daa74f9fd8c0b53702cc30dd /shared/apu.s | |
| parent | 1978afbc18ffb227f0ce36663648e00d1d2d7945 (diff) | |
| download | code.nes-00e470a4c8cefcc8e9514c6965dcd61f448d10e8.tar.gz code.nes-00e470a4c8cefcc8e9514c6965dcd61f448d10e8.zip | |
Add the sound/select.s example
This is an iteration over the sound/beep.s example, but it covers three
channels instead of just square 1. Moreover, you can use the joypad to
select which channel you want to hear and, of course, you can combine
them all at will.
Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>
Diffstat (limited to 'shared/apu.s')
| -rw-r--r-- | shared/apu.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/shared/apu.s b/shared/apu.s index 814c446..f876d91 100644 --- a/shared/apu.s +++ b/shared/apu.s @@ -1,7 +1,15 @@ .scope APU m_square_1_envelope = $4000 + m_square_1_sweep = $4001 m_square_1_low = $4002 m_square_1_high = $4003 + m_square_2_envelope = $4004 + m_square_2_sweep = $4005 + m_square_2_low = $4006 + m_square_2_high = $4007 + m_triangle_control = $4008 + m_triangle_low = $400A + m_triangle_high = $400B m_dmc = $4010 m_status = $4015 m_frame_counter = $4017 |