gmod-lcpu/native/projects/riscv_test_harness/main.cpp

37 lines
755 B
C++

#include <riscv/Bus.hpp>
#include <riscv/CPU.hpp>
#include <riscv/Devices/RamDevice.hpp>
#include "riscv/Types.hpp"
/// simple 16550 UART implementation
struct SimpleUartDevice : public riscv::Bus::MmioDevice {
constexpr static riscv::AddressT BASE_ADDRESS = 0x10000000;
riscv::AddressT Base() const override { return BASE_ADDRESS; }
riscv::AddressT Size() const override { return 5; }
// TODO: emulate properly
u32 Peek(riscv::AddressT address) override {
switch(address) {
case BASE_ADDRESS:
break;
case BASE_ADDRESS + 5:
break;
}
return 0;
}
void Poke(riscv::AddressT address, u32 value) override {
if(address == BASE_ADDRESS) { // write to data buffer
printf("%c\n", value);
}
}
};
int main() {
return 0;
}