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Add machine-code weaver

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Gabriel Tofvesson 2019-04-05 23:19:05 +02:00
parent e2f3ab756d
commit e6a0351942
1 changed files with 155 additions and 0 deletions
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import java.io.*
class MachineState {
val programMemory = ShortArray(256)// PM
val microMemory = IntArray(128) // MyM
val k1 = ByteArray(16) // K1
val k2 = ByteArray(4) // K2
var pc: Byte = 0.toByte() // PC
var asr: Byte = 0.toByte() // ASR
var ar: Short = 0.toShort() // AR
var hr: Short = 0.toShort() // HR
var gr0: Short = 0.toShort() // GR0
var gr1: Short = 0.toShort() // GR0
var gr2: Short = 0.toShort() // GR0
var gr3: Short = 0.toShort() // GR0
var ir: Byte = 0.toByte() // IR
var uPC: Byte = 0.toByte() // MyPC
var uSP: Byte = 0.toByte() // SMyPC
var lc: Byte = 0.toByte() // LC
override fun toString(): String {
val builder = StringBuilder("PM:\n")
for(index in 0 until programMemory.size)
builder.append(index.toUHex()).append(": ").append(programMemory[index].toUHex()).append("\n")
builder.append("\nMyM:\n")
for(index in 0 until microMemory.size)
builder.append(index.toUHex()).append(": ").append(microMemory[index].toShortUHex()).append("\n")
builder.append("\nK1:\n")
for(index in 0 until k1.size)
builder.append(index.toUHex()).append(": ").append(k1[index].toUHex()).append("\n")
builder.append("\nK2:\n")
for(index in 0 until k2.size)
builder.append(index.toUHex()).append(": ").append(k2[index].toUHex()).append("\n")
return builder
.append("\nPC:\n")
.append(pc.toUHex())
.append("\n\nASR:\n")
.append(asr.toUHex())
.append("\n\nAR:\n")
.append(ar.toUHex())
.append("\n\nHR:\n")
.append(hr.toUHex())
.append("\n\nGR0:\n")
.append(gr0.toUHex())
.append("\n\nGR1:\n")
.append(gr1.toUHex())
.append("\n\nGR2:\n")
.append(gr2.toUHex())
.append("\n\nGR3:\n")
.append(gr3.toUHex())
.append("\n\nIR:\nb")
.append(ir.toInt().or(1 shl 30).toString(2).substring(28))
.append("\n\nMyPC:\n")
.append(uPC.toUHex())
.append("\n\nSMyPC:\n")
.append(uSP.toUHex())
.append("\n\nLC:\n")
.append(lc.toUHex())
.append("\n\nO_flag:\n\nC_flag:\n\nN_flag:\n\nZ_flag:\n\nL_flag:\nEnd_of_dump_file")
.toString()
}
companion object {
fun parseState(rawState: String): MachineState {
val state = MachineState()
val lines = rawState.replace("\r", "").split("\n").toTypedArray()
// Read PM
for(index in 0 until 256)
state.programMemory[index] = Integer.parseInt(lines[index + 1].substring(4), 16).toShort()
// Read MyM
for(index in 0 until 128)
state.microMemory[index] = Integer.parseInt(lines[index + 3 + 256].substring(4), 16)
// Read K1
for(index in 0 until 16)
state.k1[index] = Integer.parseInt(lines[index + 5 + 256 + 128].substring(4), 16).toByte()
// Read K2
for(index in 0 until 4)
state.k2[index] = Integer.parseInt(lines[index + 7 + 256 + 128 + 16].substring(4), 16).toByte()
state.pc = Integer.parseInt(lines[413], 16).toByte()
state.asr = Integer.parseInt(lines[416], 16).toByte()
state.ar = Integer.parseInt(lines[419], 16).toShort()
state.hr = Integer.parseInt(lines[422], 16).toShort()
state.gr0 = Integer.parseInt(lines[425], 16).toShort()
state.gr1 = Integer.parseInt(lines[428], 16).toShort()
state.gr2 = Integer.parseInt(lines[431], 16).toShort()
state.gr3 = Integer.parseInt(lines[434], 16).toShort()
state.ir = Integer.parseInt(lines[437].substring(1), 2).toByte()
state.uPC = Integer.parseInt(lines[440], 16).toByte()
state.uSP = Integer.parseInt(lines[443], 16).toByte()
state.lc = Integer.parseInt(lines[446], 16).toByte()
return state
}
}
}
inline fun error(message: String){
System.err.println(message)
println("Usage:\n\tkotlin WeaverKt [machineCodeFile] [outputFile]\nor\n\tkotlin WeaverKt [machineCodeFile] [inputState] [outputFile]")
System.exit(1)
}
fun main(args: Array<String>){
if(args.size > 3) error("Too many arguments!")
if(args.size < 2) error("Too few arguments!")
val weaveFile = File(args[0])
if(!weaveFile.isFile) error("Given machine code file doesn't exist!")
val state: MachineState
if(args.size == 2) state = MachineState()
else{
val file = File(args[1])
if(file.isFile) state = MachineState.parseState(file.readText())
else{
error("Machine state file (${args[1]}) doesn't exist!")
state = MachineState()
}
}
val weaveData = weaveFile.readText().replace("\r", "").split("\n").toTypedArray()
var subtract = 0
for(index in weaveData.indices)
if(weaveData[index].length == 0 || weaveData[index].startsWith("#")) ++subtract
else if((index - subtract) > state.programMemory.size) error("Program memory out of bounds! Did you pass too much data?")
else if(weaveData[index].length != 4) error("Cannot weave data of bad length: ${weaveData[index]}")
else try{
state.programMemory[index - subtract] = Integer.parseInt(weaveData[index], 16).toShort()
}catch(e: NumberFormatException){
error("Cannot weave non-hex data: ${weaveData[index]}")
}
val outputFile = if(args.size == 3) File(args[2]) else File(args[1])
if(outputFile.isFile) outputFile.delete()
outputFile.createNewFile()
val machineData = state.toString()
outputFile.bufferedWriter().use{ it.write(machineData, 0, machineData.length) }
}
fun Short.toUHex() = toInt().and(0xFFFF.toInt()).or(1.shl(30)).toString(16).substring(4)
fun Int.toUHex() = and(0xFF).or(1.shl(30)).toString(16).substring(6)
fun Int.toShortUHex() = and((-1 ushr 7)).or(1.shl(30)).toString(16).substring(1)
fun Byte.toUHex() = toInt().and(0xFF.toInt()).or(1.shl(30)).toString(16).substring(6)