COMP3000 HLAL Parser

/*
 * This file is part of COMP3000 high-level assembly language.
 *
 * Copyright (C) 2021 Kym Haines, Macquarie University.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

package org.mq.hasm

/**
* The top level object of the application.
*/
object Main {

    import Instr._

    import scala.io.Source
    import scala.collection.mutable.ListBuffer

    /**
    * Main entry point of the application.
    *
    * @param args the array of options and parameters passed on
    * the command line.
    */
    def main(args: Array[String]) {
        // open file to read lines
        val lines = Source.fromFile("main.hlal")
        var srcBuf = new ListBuffer[Txt]()

        // read each line and append to the list
        for(line <- lines.getLines())
            srcBuf += Txt(line)

        // close file and finalise lines
        lines.close()
        val src = srcBuf.toList

        setHeapSize(100)
        setStackSize(100)

        displayQuadInstr(assignAddresses(src))

        if(symbolsNotFound.size > 0)
        {
        println("Symbols not found:")
        symbolsNotFound foreach println
        return
        }
        if(!loadMemory()) return
        trace = false // set to true for tracing information
        displayMemory
        exec(1000)    // allow at most 1000 instructions to be executed
        displayRegisters
        displayMemory
    }
}