lsnes/bsnes-patches/v085/0025-Fix-MSU-1-bug-where-write-to-MSU1BASE-4-is-mirred-to.patch
Ilari Liusvaara f49b82c989 Bus fixes: Reading of CPU MMIO registers does not update MDR
Also fixes controller timings to be more realistic.
2017-10-25 14:22:19 +03:00

26 lines
1 KiB
Diff

From d39571de650d49636778a73c66414aff372c08af Mon Sep 17 00:00:00 2001
From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Date: Mon, 7 Sep 2015 20:48:14 +0300
Subject: [PATCH 25/27] Fix MSU-1 bug where write to MSU1BASE+4 is mirred to
MSUBASE+5
---
snes/chip/msu1/msu1.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/snes/chip/msu1/msu1.cpp b/snes/chip/msu1/msu1.cpp
index 71700e60..ec1cf46a 100755
--- a/snes/chip/msu1/msu1.cpp
+++ b/snes/chip/msu1/msu1.cpp
@@ -107,7 +107,7 @@ void MSU1::mmio_write(unsigned addr, uint8 data) {
if(datafile.open()) datafile.seek(mmio.data_offset);
mmio.data_busy = false;
break;
- case 4: mmio.audio_track = (mmio.audio_track & 0xff00) | (data << 0);
+ case 4: mmio.audio_track = (mmio.audio_track & 0xff00) | (data << 0); break;
case 5: mmio.audio_track = (mmio.audio_track & 0x00ff) | (data << 8);
if(audiofile.open()) audiofile.close();
if(audiofile.open(interface->path(Cartridge::Slot::Base, { "-", (unsigned)mmio.audio_track, ".pcm" }), file::mode::read)) {
--
2.15.0.rc1