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author cam900 <dbtlrchl@naver.com>2020-03-02 21:07:19 +0900
committer GitHub <noreply@github.com>2020-03-02 21:07:19 +0900
commit9b9c6c3ab38eac5ba632459fb2bb34d82d212fd7 (patch)
tree776f8c7aa1d99397bae4198b2be4067707e8ad22 /src/devices
parent635f469c7dd0b5166455bafeddb0e898b1081165 (diff)
k054321.cpp : Add notes of unknown writes
Diffstat (limited to 'src/devices')
-rw-r--r--src/devices/machine/k054321.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/machine/k054321.cpp b/src/devices/machine/k054321.cpp
index 9a809e2d7cb..2c56cd7827d 100644
--- a/src/devices/machine/k054321.cpp
+++ b/src/devices/machine/k054321.cpp
@@ -40,6 +40,7 @@ DEFINE_DEVICE_TYPE(K054321, k054321_device, "k054321", "K054321 Maincpu-Soundcpu
void k054321_device::main_map(address_map &map)
{
map(0x0, 0x0).w(FUNC(k054321_device::active_w));
+ //map(0x1, 0x1) Used but unknown, xexex(0xd6002) writes 0x0000
map(0x2, 0x2).w(FUNC(k054321_device::volume_reset_w));
map(0x3, 0x3).w(FUNC(k054321_device::volume_up_w));
map(0x4, 0x4).w(FUNC(k054321_device::dummy_w));