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SourMesen
e391fd8f9a
* Code: Add auto-formatting rules for C++ projects (clang-format) and enforce code style via "clang-format" and "dotnet format" * fix ui format warnings
32 lines
878 B
C++
32 lines
878 B
C++
#include "pch.h"
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#include "SNES/Input/Multitap.h"
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#include "SNES/SnesConsole.h"
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#include "SNES/InternalRegisters.h"
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#include "Shared/Emulator.h"
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Multitap::Multitap(SnesConsole* console, uint8_t port, ControllerConfig controllers[]) : ControllerHub(console->GetEmulator(), ControllerType::Multitap, port, controllers)
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{
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_internalRegs = console->GetInternalRegisters();
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}
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uint8_t Multitap::ReadRam(uint16_t addr)
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{
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uint8_t output = 0;
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if(IsCurrentPort(addr)) {
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StrobeProcessRead();
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uint8_t selectBit = 0x80 >> ((_port == 0) ? 1 : 0);
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uint8_t portSelect = (_internalRegs->GetIoPortOutput() & selectBit) ? 0 : 2;
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output = ReadPort(portSelect) & 0x01;
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output |= (ReadPort(portSelect + 1) & 0x01) << 1; //P3 & P5 are reported in bit 1
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if(_strobe) {
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//Bit 1 is always set and bit 0 is always clear (when strobe is high)
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return 0x02;
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}
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}
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return output;
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}
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