42 lines
1 KiB
C++
42 lines
1 KiB
C++
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#include <iostream>
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#include <cstdint>
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namespace plutoisa
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{
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using namespace std;
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uint8_t *registers = (uint8_t *)malloc(8 * sizeof(uint8_t));
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uint8_t *memory = (uint8_t *)malloc(128 * sizeof(uint8_t));
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uint8_t *pointer = (uint8_t *)malloc(sizeof(uint8_t));
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void cpuInstructions(uint8_t *rom)
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{
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switch (rom[*pointer])
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{
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case 0x00: // LOAD R0 M0
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registers[rom[*pointer + 1]] = memory[rom[*pointer + 2]];
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*pointer += 3;
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break;
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case 0x01: // STORE R0 M0
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memory[rom[*pointer + 2]] = registers[rom[*pointer + 1]];
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*pointer += 3;
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break;
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default:
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cout << "Invalid Instruction, expect broken behavior" << endl;
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exit(1);
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}
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}
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void cpuEmulation(uint8_t *rom)
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{
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*pointer = 0;
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memory[0] = 0x12;
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while (true)
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{
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cout << static_cast<int>(registers[0]) << endl;
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cpuInstructions(rom);
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}
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}
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}
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