SPU: correctly read negative ADPCM initial values. fixes #1261

2021-11-23 18:47:54 +01:00 · 2021-11-23 18:47:54 +01:00 · c04e43702c
parent 97e599f90f
commit c04e43702c
1 changed files with 1 additions and 1 deletions
--- a/src/SPU.cpp
+++ b/src/SPU.cpp
@ -394,7 +394,7 @@ void Channel::NextSample_ADPCM()
        {
            // setup ADPCM
            u32 header = FIFO_ReadData<u32>();
-            ADPCMVal = header & 0xFFFF;
+            ADPCMVal = (s32)(s16)(header & 0xFFFF);
            ADPCMIndex = (header >> 16) & 0x7F;
            if (ADPCMIndex > 88) ADPCMIndex = 88;