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-rw-r--r--src/core/hle/service/dsp_dsp.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/core/hle/service/dsp_dsp.cpp b/src/core/hle/service/dsp_dsp.cpp
index fe8a6c2d6..39711ea97 100644
--- a/src/core/hle/service/dsp_dsp.cpp
+++ b/src/core/hle/service/dsp_dsp.cpp
@@ -303,6 +303,24 @@ static void WriteProcessPipe(Service::Interface* self) {
message[i] = Memory::Read8(buffer + i);
}
+ // This behaviour was confirmed by RE.
+ // The likely reason for this is that games tend to pass in garbage at these bytes
+ // because they read random bytes off the stack.
+ switch (pipe) {
+ case DSP::HLE::DspPipe::Audio:
+ ASSERT(message.size() >= 4);
+ message[2] = 0;
+ message[3] = 0;
+ break;
+ case DSP::HLE::DspPipe::Binary:
+ ASSERT(message.size() >= 8);
+ message[4] = 1;
+ message[5] = 0;
+ message[6] = 0;
+ message[7] = 0;
+ break;
+ }
+
DSP::HLE::PipeWrite(pipe, message);
cmd_buff[0] = IPC::MakeHeader(0xD, 1, 0);