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author AJR <ariedlmayer@gmail.com>2026-04-10 10:23:03 -0400
committer AJR <ariedlmayer@gmail.com>2026-04-10 10:24:30 -0400
commitda47296b4b2f9c7499a66698a93a8d30a0b36c5e (patch)
tree9bf22f072f55f82926d9e9c0316bf30854ccdf75
parent38c61be7730d8939fbd9ab02b628b977b049299b (diff)
kaneko/djboy.cpp: Update notes
-rw-r--r--src/mame/kaneko/djboy.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/kaneko/djboy.cpp b/src/mame/kaneko/djboy.cpp
index d149c4f18cd..fe1f99d186f 100644
--- a/src/mame/kaneko/djboy.cpp
+++ b/src/mame/kaneko/djboy.cpp
@@ -15,7 +15,7 @@ Self Test has two parts:
irq (0x30) - processes sprites
nmi: wakes up this CPU
-- CPU1 manages the protection device, palette, and tilemap(s)
+- CPU1 manages the protection device, coin counters, palette, and tilemap(s)
nmi: resets this CPU
irq: game update
@@ -24,6 +24,8 @@ Self Test has two parts:
nmi: handle sound command
- The "BEAST" protection device has access to DIP switches and player inputs.
+ It also counts coins and attempts to manage counters and lockouts much like
+ "MERMAID" (hvyunit), but fails to update corresponding outputs due to a bug.
PCB Layout