From fedfcaaadadfec42acf78c3f46ae9e27cc619a53 Mon Sep 17 00:00:00 2001
From: Benjamin Ramhorst <59868635+bo3z@users.noreply.github.com>
Date: Thu, 28 May 2020 14:42:02 -0700
Subject: [PATCH] Added most of the code for generating the instruction MIF.
 Still need to do a big if-else statement for every instruction.

---
 InstructionGenerator.cpp | 124 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 InstructionGenerator.cpp

diff --git a/InstructionGenerator.cpp b/InstructionGenerator.cpp
new file mode 100644
index 0000000..6724f5f
--- /dev/null
+++ b/InstructionGenerator.cpp
@@ -0,0 +1,124 @@
+#include <iostream>
+#include <sstream>
+#include <string>
+#include <vector>
+#include <cassert>
+
+using namespace std;
+
+#define pb push_back
+
+#define endl "\n"
+#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL);
+
+const unsigned int RAM_SIZE = 2048;
+const unsigned int INSTRUCTION_LENGTH = 16;
+
+vector<string> getWords(string line){
+  vector<string> ans;
+  istringstream stream(line);
+  while (stream){
+    string temp;
+    stream >> temp;
+    ans.pb(temp);
+  }
+  return ans;
+}
+
+string convertBinaryToHex(string binary4){
+  if(binary4=="0000"){
+    return "0";
+  }else if(binary4=="0001"){
+    return "1";
+  }else if(binary4=="0010"){
+    return "2";
+  }else if(binary4=="0011"){
+    return "3";
+  }else if(binary4=="0100"){
+    return "4";
+  }else if(binary4=="0101"){
+    return "5";
+  }else if(binary4=="0110"){
+    return "6";
+  }else if(binary4=="0111"){
+    return "7";
+  }else if(binary4=="1000"){
+    return "8";
+  }else if(binary4=="1001"){
+    return "9";
+  }else if(binary4=="1010"){
+    return "A";
+  }else if(binary4=="1011"){
+    return "B";
+  }else if(binary4=="1100"){
+    return "C";
+  }else if(binary4=="1101"){
+    return "D";
+  }else if(binary4=="1110"){
+    return "E";
+  }else if(binary4=="1111"){
+    return "F";
+  }else{
+    assert(0);
+  }
+}
+
+string convertInstructionToHex(string binaryInstruction){
+  string ans="";
+  string temp="";
+  assert(binaryInstruction.size()==16);
+  for (int i=0; i<16; i++){
+    temp+=binaryInstr.at(i);
+    if(i==3 || i==7 ||i==11 || i==15){
+      ans+=convertBinaryToHex(temp);
+      temp=""
+    }
+  }
+  return ans;
+}
+
+string getInstructionHex(string instruction){
+  string binary;
+  string opcode, rs1, rs2, rd;
+
+  if (opcode=="LDA" || opcode=="STA"){
+    binary="1";
+    if(opcode=="LDA"){
+
+    }else if (opcode=="STA"){
+
+    }else {
+      assert(0);
+    }
+  }else{
+    switch (opcode) {
+      case "":
+        // Add code
+        break;
+    }
+  }
+  return ans;
+}
+
+void generateMIF(vector<string> instructions){
+  cout << "DEPTH = " << RAM_SIZE << ";" << endl;
+  cout << "WIDTH = " << INSTRUCTION_LENGTH << ";" << endl;
+  cout << "ADDRESS_RADIX = DEC;" << endl;
+  cout << "DATA_RADIX = HEX;" << endl;
+  cout << "CONTENT" << endl;
+  cout << "BEGIN" << endl;
+  cout << "[0..2047]: 0;" << endl;
+  for (int i = 0; i <= instruction.size(); i++){
+    cout << i << " : " << instruction.at(i) << ";" << endl;
+  }
+}
+
+int main(){
+  IOS;
+  string temp;
+  vector<string> hexCodes;
+  while(getline(cin, temp)){
+    hexCodes.pb(getInstructionHex(temp));
+  }
+  generateMIF(hexCodes);
+}