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simulator work

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This commit is contained in:
aljazbrodar. 2025-11-23 17:47:09 +01:00
parent 27b8de1bc2
commit 9cc0c10e35
584 changed files with 29988 additions and 0 deletions
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73
ass2/simulator/machine.cpp Normal file
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#include "machine.h"
#include <stdexcept>
Machine::Machine() {
A = B = L = T = S = X = PC = SW = 0;
F = 0.0;
}
int Machine::getReg(int reg)
{
switch (reg) {
case 0: return A;
case 1: return X;
case 2: return L;
case 3: return B;
case 4: return S;
case 5: return T;
case 6: return F;
case 8: return PC;
case 9: return SW;
default: return -1;
}
}
void Machine::setReg(int reg, int val)
{
switch (reg) {
case 0: A = val; break;
case 1: X = val; break;
case 2: L = val; break;
case 3: B = val; break;
case 4: S = val; break;
case 5: T = val; break;
case 8: PC = val; break;
case 9: PC = val; break;
}
}
int getWord(int addr);
void setWord(int addr, int val);
unsigned char Machine::readByte(unsigned int address) {
if (address > MAX_ADDRESS) {
throw std::out_of_range("Memory read out of range");
}
return memory[address];
}
void Machine::writeByte(unsigned int address, unsigned char val) {
if (address > MAX_ADDRESS) {
throw std::out_of_range("Memory write out of range");
}
memory[address] = val;
}
unsigned int Machine::getWord(unsigned int address) {
if (address + 2 > MAX_ADDRESS) {
throw std::out_of_range("Memory write out of range");
}
unsigned int B1 = memory[address + 2];
unsigned int B2 = memory[address + 1];
unsigned int B3 = memory[address];
return B1 | (B2 << 8) | (B3 << 16);
}
void Machine::setWord(unsigned int address, unsigned int val) {
if (address + 2 > MAX_ADDRESS) {
throw std::out_of_range("Memory write out of range");
}
memory[address + 2] = val & 0xFF;
memory[address + 1] = (val >> 8) & 0xFF;
memory[address] = (val >> 16) & 0xFF;
}