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