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koncal stari sic format

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This commit is contained in:
aljazbrodar. 2025-12-06 14:55:21 +01:00
parent 12472d2590
commit b105f4cc6a
2 changed files with 133 additions and 3 deletions
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134
ass2/simulator/machine.cpp
View file

@ -172,6 +172,8 @@ bool Machine::execSICF3F4(int opcode, int ni, int operand) {
int operand2 = fetch();
int UA;
int UV;
int temp;
bool ready = false;
if (ni == 0) { // stari SIC (neposredno in enostavno naslavljanje)
if (((operand >> 7) & 0x1) == 1) { //preverimo ali je indeksno naslavljanje
x_val = getX();
@ -185,7 +187,6 @@ bool Machine::execSICF3F4(int opcode, int ni, int operand) {
}
UV = (memory[UA] << 16) | (memory[UA + 1] << 8) | memory[UA + 2]; //izracunamo operand oz. uporabno vrednost
switch (opcode) {
case Opcode::ADD:
setA(getA() + UV);
@ -194,10 +195,137 @@ bool Machine::execSICF3F4(int opcode, int ni, int operand) {
setA(getA() & UV);
return true;
case Opcode::COMP:
if (getA() < UV) {
temp = getA();
if (temp < UV) {
setSW(0x40);
} else if (temp == UV) {
setSW(0x0);
} else {
setSW(0x80);
}
return true;
break;
case Opcode::DIV:
if (UV == 0) {
cerr << "Error: Divison by zero." << endl;
return false;
}
setA(getA() / UV);
return true;
case Opcode::J:
setPC(UV);
return true;
case Opcode::JEQ:
if (getSW() == 0x00) {
setPC(UV);
}
return true;
case Opcode::JGT:
if (getSW() == 0x80) {
setPC(UV);
}
return true;
case Opcode::JLT:
if (getSW() == 0x40) {
setPC(UV);
}
return true;
case Opcode::JSUB:
setL(getPC());
setPC(UV);
return true;
case Opcode::LDA:
setA(UV);
return true;
case Opcode::LDB:
setB(UV);
return true;
case Opcode::LDCH:
setA((getA() & 0xFFFF00) | (UV & 0xFF));
return true;
case Opcode::LDL:
setL(UV);
return true;
case Opcode::LDS:
setS(UV);
return true;
case Opcode::LDT:
setT(UV);
return true;
case Opcode::LDX:
setX(UV);
return true;
case Opcode::MUL:
setA(getA() * UV);
return true;
case Opcode::OR:
setA(getA() | UV);
return true;
case Opcode::RD:
temp = UV & 0xFF;
if (devices[temp] != nullptr) {
setA(devices[temp]->read());
}
return true;
case Opcode::RSUB:
setPC(getL());
return true;
case Opcode::STA:
temp = getA();
memory[UV] = (temp >> 16) & 0xFF;
memory[UV + 1] = (temp >> 8) & 0xFF;
memory[UV + 2] = temp & 0xFF;
return true;
case Opcode::STCH:
temp = getA();
memory[UV] = temp & 0xFF;
return true;
case Opcode::STL:
temp = getL();
memory[UV] = (temp >> 16) & 0xFF;
memory[UV + 1] = (temp >> 8) & 0xFF;
memory[UV + 2] = temp & 0xFF;
return true;
case Opcode::STSW:
temp = getSW();
memory[UV] = (temp >> 16) & 0xFF;
memory[UV + 1] = (temp >> 8) & 0xFF;
memory[UV + 2] = temp & 0xFF;
return true;
case Opcode::STX:
temp = getX();
memory[UV] = (temp >> 16) & 0xFF;
memory[UV + 1] = (temp >> 8) & 0xFF;
memory[UV + 2] = temp & 0xFF;
return true;
case Opcode::SUB:
setA(getA() - UV);
return true;
case Opcode::TD:
temp = UV & 0xFF;
ready = false;
if (devices[temp] != nullptr) {
ready = devices[temp]->test();
}
if (ready) {
setSW(0X40);
} else {
setSW(0x00);
}
return true;
case Opcode::TIX:
temp = getX();
setX(temp + 1);
if (temp < UV) setSW(0x40);
else if (temp == UV) setSW(0x00);
else setSW(0x80);
return true;
case Opcode::WD:
temp = UV & 0xFF;
if (devices[temp] != nullptr) {
devices[temp]->write(getA() & 0xFF);
}
return true;
default:

2
ass2/simulator/machine.h
View file

@ -28,6 +28,7 @@ public:
int getS() { return S; }
int getX() { return X; }
int getPC() { return PC; }
int getSW() { return SW; }
double getF() { return F; }
void setA(int val) { A = val; }
@ -37,6 +38,7 @@ public:
void setS(int val) { S = val; }
void setX(int val) { X = val; }
void setPC(int val) { PC = val; }
void setSW(int val) { SW = val; }
void setF(double val) { F = val; }
int getReg(int reg);