public void interpret()
{
Console.WriteLine("asd" + pc);
Pcode tempCode = pcodeList[pc++];
//output += pc.ToString() + "\t" + Pcode.PCODE[(int)tempCode.f].ToString() + "\t" + tempCode.l.ToString() + "\t" + tempCode.a.ToString() + "\n";
switch (tempCode.f)
{
case Pcode.PC.LIT:
runtimeStack[sp++] = tempCode.a;
break;
case Pcode.PC.OPR:
//Console.WriteLine("vvvvvvv");
switch (tempCode.a)
{
case 0:
sp = bp;
pc = runtimeStack[sp + 2];
bp = runtimeStack[sp + 1];
break;
case 1:
runtimeStack[sp - 1] = -runtimeStack[sp - 1];
break;
case 2:
sp--;
runtimeStack[sp - 1] += runtimeStack[sp];
break;
case 3:
sp--;
runtimeStack[sp - 1] -= runtimeStack[sp];
break;
case 4:
sp--;
runtimeStack[sp - 1] *= runtimeStack[sp];
break;
case 5:
sp--;
runtimeStack[sp - 1] /= runtimeStack[sp];
break;
case 6:
sp--;
runtimeStack[sp - 1] %= 2;
break;
case 7:
sp--;
runtimeStack[sp - 1] %= runtimeStack[sp];
break;
case 8:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp] == runtimeStack[sp - 1] ? 1 : 0);
break;
case 9:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp] != runtimeStack[sp - 1] ? 1 : 0);
break;
case 10:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp - 1] < runtimeStack[sp] ? 1 : 0);
break;
case 11:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp - 1] >= runtimeStack[sp] ? 1 : 0);
break;
case 12:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp - 1] > runtimeStack[sp] ? 1 : 0);
break;
case 13:
sp--;
runtimeStack[sp - 1] = (runtimeStack[sp - 1] <= runtimeStack[sp] ? 1 : 0);
break;
case 14:
outputFlag = 1;
output += runtimeStack[sp - 1];
break;
case 15:
outputFlag = 1;
output += "\n";
break;
case 16:
inputFlag = 1;
break;
}
break;
case Pcode.PC.LOD:
runtimeStack[sp] = runtimeStack[getBasePtr(tempCode.l, runtimeStack, bp) + tempCode.a];
sp++;
break;
case Pcode.PC.STO:
sp--;
runtimeStack[getBasePtr(tempCode.l, runtimeStack, bp) + tempCode.a] = runtimeStack[sp];
break;
case Pcode.PC.CAL:
runtimeStack[sp] = getBasePtr(tempCode.l, runtimeStack, bp);
runtimeStack[sp + 1] = bp;
runtimeStack[sp + 2] = pc;
bp = sp;
pc = tempCode.a;
break;
case Pcode.PC.INT:
sp += tempCode.a;
break;
case Pcode.PC.JMP:
pc = tempCode.a;
break;
case Pcode.PC.JPC:
sp--;
if (runtimeStack[sp] == 0)
{
pc = tempCode.a;
}
break;
}
}
//生成P-Code代码
public void produceCodes(Pcode.PC f, int l, int a)
{
pcodeList[arrayPtr++] = new Pcode(f, l, a);
}