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dsp_dsp: Messages are modified by service before being sent to DSP
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ff28080091
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@ -303,6 +303,24 @@ static void WriteProcessPipe(Service::Interface* self) {
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message[i] = Memory::Read8(buffer + i);
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message[i] = Memory::Read8(buffer + i);
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}
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}
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// This behaviour was confirmed by RE.
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// The likely reason for this is that games tend to pass in garbage at these bytes
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// because they read random bytes off the stack.
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switch (pipe) {
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case DSP::HLE::DspPipe::Audio:
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ASSERT(message.size() >= 4);
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message[2] = 0;
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message[3] = 0;
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break;
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case DSP::HLE::DspPipe::Binary:
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ASSERT(message.size() >= 8);
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message[4] = 1;
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message[5] = 0;
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message[6] = 0;
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message[7] = 0;
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break;
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}
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DSP::HLE::PipeWrite(pipe, message);
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DSP::HLE::PipeWrite(pipe, message);
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cmd_buff[0] = IPC::MakeHeader(0xD, 1, 0);
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cmd_buff[0] = IPC::MakeHeader(0xD, 1, 0);
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