hazemKrimi/jack-vm-translator
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Hazem Krimi
2024-04-26 12:51:07 +01:00
parent e79ab46844
commit 8262f49d85
6 changed files with 0 additions and 0 deletions
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include/memory.h
+161
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@@ -0,0 +1,161 @@
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
Segment determineSegment(string segment)
{
if (segment == "local")
return Segment::LCL;
if (segment == "argument")
return Segment::ARG;
if (segment == "this")
return Segment::THIS;
if (segment == "that")
return Segment::THAT;
if (segment == "pointer")
return Segment::POINTER;
if (segment == "static")
return Segment::STATIC;
if (segment == "temp")
return Segment::TEMP;
if (segment == "constant")
return Segment::CONSTANT;
return Segment::CONSTANT;
}
string translatePush(string filename, Segment segment, int index)
{
stringstream output;
switch (segment)
{
case LCL:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@LCL" << endl;
output << "A=D+M" << endl;
output << "D=M" << endl;
break;
case ARG:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@ARG" << endl;
output << "A=D+M" << endl;
output << "D=M" << endl;
break;
case THIS:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@THIS" << endl;
output << "A=D+M" << endl;
output << "D=M" << endl;
break;
case THAT:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@THAT" << endl;
output << "A=D+M" << endl;
output << "D=M" << endl;
break;
case POINTER:
output << (index == 0 ? "@THIS" : "@THAT") << endl;
output << "D=M" << endl;
break;
case STATIC:
output << "@" << filename << "." << index << endl;
output << "D=M" << endl;
break;
case TEMP:
output << "@" << index + 5 << endl;
output << "D=M" << endl;
break;
case CONSTANT:
default:
output << '@' << index << endl;
output << "D=A" << endl;
break;
}
output << "@SP" << endl;
output << "A=M" << endl;
output << "M=D" << endl;
output << "@SP" << endl;
output << "M=M+1" << endl;
return output.str();
}
string translatePop(string filename, Segment segment, int index)
{
stringstream output;
switch (segment)
{
case LCL:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@LCL" << endl;
output << "D=D+M" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case ARG:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@ARG" << endl;
output << "D=D+M" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case THIS:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@THIS" << endl;
output << "D=D+M" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case THAT:
output << "@" << index << endl;
output << "D=A" << endl;
output << "@THAT" << endl;
output << "D=D+M" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case POINTER:
output << (index == 0 ? "@THIS" : "@THAT") << endl;
output << "D=A" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case STATIC:
output << "@" << filename << "." << index << endl;
output << "D=A" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
case TEMP:
output << "@" << index + 5 << endl;
output << "D=A" << endl;
output << "@ADDR" << endl;
output << "M=D" << endl;
break;
default:
break;
}
output << "@SP" << endl;
output << "M=M-1" << endl;
output << "A=M" << endl;
output << "D=M" << endl;
output << "@ADDR" << endl;
output << "A=M" << endl;
output << "M=D" << endl;
return output.str();
}