From 1978afbc18ffb227f0ce36663648e00d1d2d7945 Mon Sep 17 00:00:00 2001
From: Miquel Sabaté Solà <mssola@mssola.com>
Date: Thu, 9 Apr 2026 00:33:04 +0200
Subject: Add the sound/beep.s example
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This is the most simple example you can come up when it comes to
producing sound on the NES/Famicom. Basically, a single note is
delivered to the APU which is continuously on.

Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>
---
 shared/ppu.s | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'shared/ppu.s')

diff --git a/shared/ppu.s b/shared/ppu.s
index 42acb06..8b548e9 100644
--- a/shared/ppu.s
+++ b/shared/ppu.s
@@ -9,3 +9,12 @@
     lda #value
     sta $2007
 .endmacro
+
+.scope PPU
+    m_control = $2000
+    m_mask    = $2001
+    m_status  = $2002
+    m_scroll  = $2005
+    m_address = $2006
+    m_data    = $2007
+.endscope
-- 
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