mirror of
https://github.com/irmen/prog8.git
synced 2024-12-24 01:29:28 +00:00
vm: implementing more fp instructions
This commit is contained in:
Irmen de Jong
parent
fa357a450b
commit
86cc2f1075
@ -380,10 +380,22 @@ class CodeGen(internal val program: PtProgram,
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return code
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}
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internal fun multiplyByConstFloat(fpReg: Int, factor: Float): VmCodeChunk {
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val code = VmCodeChunk()
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if(factor==1f)
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return code
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if(factor==0f) {
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code += VmCodeInstruction(Opcode.LOAD, VmDataType.FLOAT, fpReg1 = fpReg, fpValue = 0f)
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} else {
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val factorReg = vmRegisters.nextFreeFloat()
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code += VmCodeInstruction(Opcode.MUL, VmDataType.FLOAT, fpReg1 = fpReg, fpReg2 = fpReg, fpReg3 = factorReg)
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}
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return code
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}
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internal val powersOfTwo = (0..16).map { 2.0.pow(it.toDouble()).toInt() }
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internal fun multiplyByConst(dt: VmDataType, reg: Int, factor: Int): VmCodeChunk {
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// TODO support floating-point factors
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val code = VmCodeChunk()
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if(factor==1)
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return code
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@ -62,7 +62,7 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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is PtTypeCast -> code += translate(expr, resultRegister)
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is PtPrefix -> code += translate(expr, resultRegister)
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is PtArrayIndexer -> code += translate(expr, resultRegister)
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is PtBinaryExpression -> code += translate(expr, resultRegister)
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is PtBinaryExpression -> code += translate(expr, resultRegister, resultFpRegister)
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is PtBuiltinFunctionCall -> code += codeGen.translateBuiltinFunc(expr, resultRegister)
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is PtFunctionCall -> code += translate(expr, resultRegister, resultFpRegister)
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is PtContainmentCheck -> code += translate(expr, resultRegister, resultFpRegister)
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@ -269,13 +269,13 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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return code
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}
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private fun translate(binExpr: PtBinaryExpression, resultRegister: Int): VmCodeChunk {
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private fun translate(binExpr: PtBinaryExpression, resultRegister: Int, resultFpRegister: Int): VmCodeChunk {
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val vmDt = codeGen.vmType(binExpr.left.type)
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val signed = binExpr.left.type in SignedDatatypes
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return when(binExpr.operator) {
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"+" -> operatorPlus(binExpr, vmDt, resultRegister)
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"-" -> operatorMinus(binExpr, vmDt, resultRegister)
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"*" -> operatorMultiply(binExpr, vmDt, resultRegister)
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"*" -> operatorMultiply(binExpr, vmDt, resultRegister, resultFpRegister )
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"/" -> operatorDivide(binExpr, vmDt, resultRegister)
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"%" -> operatorModulo(binExpr, vmDt, resultRegister)
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"|", "or" -> operatorOr(binExpr, vmDt, resultRegister)
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@ -398,6 +398,8 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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}
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private fun operatorModulo(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int): VmCodeChunk {
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if(vmDt==VmDataType.FLOAT)
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throw IllegalArgumentException("floating-point modulo not supported")
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val code = VmCodeChunk()
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val leftResultReg = codeGen.vmRegisters.nextFree()
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val rightResultReg = codeGen.vmRegisters.nextFree()
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@ -410,6 +412,9 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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private fun operatorDivide(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int): VmCodeChunk {
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val code = VmCodeChunk()
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val constFactorRight = binExpr.right as? PtNumber
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if(vmDt==VmDataType.FLOAT) {
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TODO("div float")
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} else {
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if(constFactorRight!=null && constFactorRight.type!=DataType.FLOAT) {
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code += translateExpression(binExpr.left, resultRegister, -1)
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val factor = constFactorRight.number.toInt()
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@ -421,13 +426,31 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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code += translateExpression(binExpr.right, rightResultReg, -1)
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code += VmCodeInstruction(Opcode.DIV, vmDt, reg1=resultRegister, reg2=leftResultReg, reg3=rightResultReg)
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}
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}
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return code
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}
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private fun operatorMultiply(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int): VmCodeChunk {
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private fun operatorMultiply(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int, resultFpRegister: Int): VmCodeChunk {
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val code = VmCodeChunk()
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val constFactorLeft = binExpr.left as? PtNumber
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val constFactorRight = binExpr.right as? PtNumber
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if(vmDt==VmDataType.FLOAT) {
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if(constFactorLeft!=null) {
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code += translateExpression(binExpr.right, -1, resultFpRegister)
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val factor = constFactorLeft.number.toFloat()
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code += codeGen.multiplyByConstFloat(resultFpRegister, factor)
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} else if(constFactorRight!=null) {
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code += translateExpression(binExpr.left, -1, resultFpRegister)
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val factor = constFactorRight.number.toFloat()
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code += codeGen.multiplyByConstFloat(resultFpRegister, factor)
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} else {
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val leftResultFpReg = codeGen.vmRegisters.nextFreeFloat()
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val rightResultFpReg = codeGen.vmRegisters.nextFreeFloat()
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code += translateExpression(binExpr.left, -1, leftResultFpReg)
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code += translateExpression(binExpr.right, -1, rightResultFpReg)
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code += VmCodeInstruction(Opcode.MUL, vmDt, fpReg1 = resultFpRegister, reg2=leftResultFpReg, reg3=rightResultFpReg)
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}
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} else {
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if(constFactorLeft!=null && constFactorLeft.type!=DataType.FLOAT) {
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code += translateExpression(binExpr.right, resultRegister, -1)
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val factor = constFactorLeft.number.toInt()
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@ -443,11 +466,15 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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code += translateExpression(binExpr.right, rightResultReg, -1)
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code += VmCodeInstruction(Opcode.MUL, vmDt, reg1=resultRegister, reg2=leftResultReg, reg3=rightResultReg)
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}
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}
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return code
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}
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private fun operatorMinus(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int): VmCodeChunk {
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val code = VmCodeChunk()
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if(vmDt==VmDataType.FLOAT) {
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TODO("minus float")
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} else {
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if((binExpr.right as? PtNumber)?.number==1.0) {
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code += translateExpression(binExpr.left, resultRegister, -1)
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code += VmCodeInstruction(Opcode.DEC, vmDt, reg1=resultRegister)
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@ -459,11 +486,15 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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code += translateExpression(binExpr.right, rightResultReg, -1)
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code += VmCodeInstruction(Opcode.SUB, vmDt, reg1=resultRegister, reg2=leftResultReg, reg3=rightResultReg)
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}
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}
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return code
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}
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private fun operatorPlus(binExpr: PtBinaryExpression, vmDt: VmDataType, resultRegister: Int): VmCodeChunk {
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val code = VmCodeChunk()
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if(vmDt==VmDataType.FLOAT) {
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TODO("plus float")
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} else {
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if((binExpr.left as? PtNumber)?.number==1.0) {
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code += translateExpression(binExpr.right, resultRegister, -1)
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code += VmCodeInstruction(Opcode.INC, vmDt, reg1=resultRegister)
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@ -479,6 +510,7 @@ internal class ExpressionGen(private val codeGen: CodeGen) {
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code += translateExpression(binExpr.right, rightResultReg, -1)
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code += VmCodeInstruction(Opcode.ADD, vmDt, reg1=resultRegister, reg2=leftResultReg, reg3=rightResultReg)
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}
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}
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return code
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}
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@ -184,47 +184,76 @@ sub str2ubyte(str string) -> ubyte {
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; -- returns in A the unsigned byte value of the string number argument in AY
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; the number may NOT be preceded by a + sign and may NOT contain spaces
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; (any non-digit character will terminate the number string that is parsed)
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; TODO
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return 0
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return str2uword(string) as ubyte
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}
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sub str2byte(str string) -> byte {
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; -- returns in A the signed byte value of the string number argument in AY
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; the number may be preceded by a + or - sign but may NOT contain spaces
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; (any non-digit character will terminate the number string that is parsed)
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; TODO
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return 0
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return str2word(string) as byte
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}
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sub str2uword(str string) -> uword {
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; -- returns the unsigned word value of the string number argument in AY
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; the number may NOT be preceded by a + sign and may NOT contain spaces
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; (any non-digit character will terminate the number string that is parsed)
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; TODO
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return 0
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%asm {{
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loadm.w r0, {conv.str2uword.string}
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syscall 11
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return
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}}
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}
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sub str2word(str string) -> word {
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; -- returns the signed word value of the string number argument in AY
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; the number may be preceded by a + or - sign but may NOT contain spaces
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; (any non-digit character will terminate the number string that is parsed)
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; TODO
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return 0
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%asm {{
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loadm.w r0, {conv.str2word.string}
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syscall 12
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return
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}}
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}
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sub hex2uword(str string) -> uword {
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; -- hexadecimal string (with or without '$') to uword.
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; string may be in petscii or c64-screencode encoding.
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; stops parsing at the first character that's not a hex digit (except leading $)
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; TODO
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return 0
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; TODO fix this result
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uword result
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ubyte char
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if @(string)=='$'
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string++
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repeat {
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char = @(string)
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if char==0
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return result
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result <<= 4
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if char>='0' and char<='9'
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result |= char-'0'
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else
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result |= char-'a'+10
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string++
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}
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}
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sub bin2uword(str string) -> uword {
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; -- binary string (with or without '%') to uword.
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; stops parsing at the first character that's not a 0 or 1. (except leading %)
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; TODO
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return 0
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; TODO fix this result
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uword result
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ubyte char
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if @(string)=='%'
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string++
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repeat {
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char = @(string)
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if char==0
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return result
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result <<= 1
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if char=='1'
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result |= 1
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string++
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}
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}
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}
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@ -19,17 +19,15 @@ sub print_f(float value) {
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}
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sub pow(float value, float power) -> float {
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; TODO fpow.f instruction
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%asm {{
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loadm.f fr0,{floats.pow.value}
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loadm.f fr1,{floats.pow.power}
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fpow.f fr0,fr0
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fpow.f fr0,fr0,fr1
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return
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}}
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}
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sub fabs(float value) -> float {
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; TODO fabs.f instruction
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%asm {{
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loadm.f fr0,{floats.fabs.value}
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fabs.f fr0,fr0
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@ -38,7 +36,6 @@ sub fabs(float value) -> float {
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}
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sub sin(float angle) -> float {
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; TODO fsin.f instruction
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%asm {{
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loadm.f fr0,{floats.sin.angle}
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fsin.f fr0,fr0
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@ -47,7 +44,6 @@ sub sin(float angle) -> float {
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}
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sub cos(float angle) -> float {
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; TODO fcos.f instruction
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%asm {{
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loadm.f fr0,{floats.cos.angle}
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fcos.f fr0,fr0
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@ -56,7 +52,6 @@ sub cos(float angle) -> float {
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}
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sub tan(float value) -> float {
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; TODO ftan.f instruction
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%asm {{
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loadm.f fr0,{floats.tan.value}
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ftan.f fr0,fr0
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@ -65,7 +60,6 @@ sub tan(float value) -> float {
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}
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sub atan(float value) -> float {
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; TODO fatan.f instruction
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%asm {{
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loadm.f fr0,{floats.atan.value}
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fatan.f fr0,fr0
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@ -74,7 +68,6 @@ sub atan(float value) -> float {
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}
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sub ln(float value) -> float {
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; TODO fln.f instruction
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%asm {{
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loadm.f fr0,{floats.ln.value}
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fln.f fr0,fr0
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@ -83,16 +76,14 @@ sub ln(float value) -> float {
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}
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sub log2(float value) -> float {
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; TODO flog2.f instruction
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%asm {{
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loadm.f fr0,{floats.log2.value}
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flog2.f fr0,fr0
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flog.f fr0,fr0
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return
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}}
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}
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sub sqrt(float value) -> float {
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; TODO fsqrt.f instruction
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%asm {{
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loadm.f fr0,{floats.sqrt.value}
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fsqrt.f fr0,fr0
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@ -111,7 +102,6 @@ sub deg(float angle) -> float {
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}
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sub round(float value) -> float {
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; TODO fround.f instruction
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%asm {{
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loadm.f fr0,{floats.round.value}
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fround.f fr0,fr0
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@ -120,7 +110,6 @@ sub round(float value) -> float {
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}
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sub floor(float value) -> float {
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; TODO ffloor.f instruction
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%asm {{
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loadm.f fr0,{floats.floor.value}
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ffloor.f fr0,fr0
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@ -130,7 +119,6 @@ sub floor(float value) -> float {
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sub ceil(float value) -> float {
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; -- ceil: tr = int(f); if tr==f -> return else return tr+1
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; TODO fceil.f instruction
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%asm {{
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loadm.f fr0,{floats.ceil.value}
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fceil.f fr0,fr0
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@ -139,9 +127,8 @@ sub ceil(float value) -> float {
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}
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sub rndf() -> float {
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; TODO frnd.f instruction
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%asm {{
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frnd.f fr0
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rnd.f fr0
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return
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}}
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}
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@ -3,8 +3,12 @@ TODO
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For next release
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^^^^^^^^^^^^^^^^
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- vm: fix fp reg out of bounds
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- vm: implement missing floating point functions
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- vm: fix if @(string)=='$' string++ not working on ea31
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- vm: fix conv hex2uword and bin2uword
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- vm: implement float div, minus, plus
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- vm: implement float type casts to integer types
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- vm: implement float any, all, reverse, sort
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- vm: fix test fp calc result being 0
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- vm: get rid of intermediate floats.xxx() functions somehow, instead generate the float instructions directly?
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- pipe operator: allow non-unary function calls in the pipe that specify the other argument(s) in the calls.
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- allow "xxx" * constexpr (where constexpr is not a number literal), now gives expression error not same type
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@ -8,15 +8,61 @@
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main {
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sub start() {
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float fl = 500.0
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txt.print("rad 180 = ")
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floats.print_f(floats.rad(180.0))
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txt.print("rad 360 = ")
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floats.print_f(floats.rad(360.0))
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txt.print("deg 2 = ")
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floats.print_f(floats.deg(2.0))
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txt.print("deg pi = ")
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floats.print_f(floats.deg(floats.PI))
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ubyte ub = conv.str2ubyte("234")
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txt.print_ub(ub)
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txt.nl()
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byte sb = conv.str2byte("-123")
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txt.print_b(sb)
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txt.nl()
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uword uw = conv.str2uword("54321")
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txt.print_uw(uw)
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txt.nl()
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word sw = conv.str2word("-12345")
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txt.print_w(sw)
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txt.nl()
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txt.nl()
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; TODO fix hex2uword and bin2uword
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uw = conv.hex2uword("0")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.hex2uword("1")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.hex2uword("a")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.bin2uword("0")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.bin2uword("1")
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txt.print_uw(uw)
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txt.nl()
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txt.nl()
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uw = conv.hex2uword("$ea31")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.hex2uword("ea31")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.bin2uword("%100000111011101")
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txt.print_uw(uw)
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txt.nl()
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uw = conv.bin2uword("100000111011101")
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txt.print_uw(uw)
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txt.nl()
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; float fl = 500.0
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; txt.print("rad 180 = ")
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; floats.print_f(floats.rad(180.0))
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; txt.print("rad 360 = ")
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; floats.print_f(floats.rad(360.0))
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; txt.print("deg 2 = ")
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; floats.print_f(floats.deg(2.0))
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; txt.print("deg pi = ")
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; floats.print_f(floats.deg(floats.PI))
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sys.exit(42)
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; floats.print_f(-42.42)
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; float f1 = 1.2345
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@ -58,21 +104,21 @@ main {
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; "deg", "round", "floor", "ceil", "rndf"
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; a "pixelshader":
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sys.gfx_enable(0) ; enable lo res screen
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ubyte shifter
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repeat {
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uword xx
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uword yy = 0
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repeat 240 {
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xx = 0
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repeat 320 {
|
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sys.gfx_plot(xx, yy, xx*yy + shifter as ubyte)
|
||||
xx++
|
||||
}
|
||||
yy++
|
||||
}
|
||||
shifter+=4
|
||||
}
|
||||
; sys.gfx_enable(0) ; enable lo res screen
|
||||
; ubyte shifter
|
||||
;
|
||||
; repeat {
|
||||
; uword xx
|
||||
; uword yy = 0
|
||||
; repeat 240 {
|
||||
; xx = 0
|
||||
; repeat 320 {
|
||||
; sys.gfx_plot(xx, yy, xx*yy + shifter as ubyte)
|
||||
; xx++
|
||||
; }
|
||||
; yy++
|
||||
; }
|
||||
; shifter+=4
|
||||
; }
|
||||
}
|
||||
}
|
||||
|
||||
@ -18,8 +18,6 @@ a few fp conversion instructions to
|
||||
*only* LOAD AND STORE instructions have a possible memory operand, all other instructions use only registers or immediate value.
|
||||
|
||||
|
||||
TODO all floating point arithmethic functions as fp-instructions.
|
||||
|
||||
LOAD/STORE
|
||||
----------
|
||||
All have type b or w or f.
|
||||
@ -130,8 +128,8 @@ rol reg1 - rotate reg1 left by 1bits, not us
|
||||
roxl reg1 - rotate reg1 left by 1bits, using carry, + set Carry to shifted bit
|
||||
|
||||
|
||||
FLOATING POINT CONVERSIONS
|
||||
--------------------------
|
||||
FLOATING POINT CONVERSIONS AND FUNCTIONS
|
||||
----------------------------------------
|
||||
ffromub fpreg1, reg1 - fpreg1 = reg1 from usigned byte
|
||||
ffromsb fpreg1, reg1 - fpreg1 = reg1 from signed byte
|
||||
ffromuw fpreg1, reg1 - fpreg1 = reg1 from unsigned word
|
||||
@ -140,6 +138,8 @@ ftoub reg1, fpreg1 - reg1 = fpreg1 as unsigned byte
|
||||
ftosb reg1, fpreg1 - reg1 = fpreg1 as signed byte
|
||||
ftouw reg1, fpreg1 - reg1 = fpreg1 as unsigned word
|
||||
ftosw reg1, fpreg1 - reg1 = fpreg1 as signed word
|
||||
fpow fpreg1, fpreg2, fpreg3 - fpreg1 = fpreg2 to the power of fpreg3
|
||||
fabs fpreg1, fpreg2 - fpreg1 = abs(fpreg2)
|
||||
|
||||
|
||||
MISC
|
||||
@ -248,6 +248,18 @@ enum class Opcode {
|
||||
FTOSB,
|
||||
FTOUW,
|
||||
FTOSW,
|
||||
FPOW,
|
||||
FABS,
|
||||
FSIN,
|
||||
FCOS,
|
||||
FTAN,
|
||||
FATAN,
|
||||
FLN,
|
||||
FLOG,
|
||||
FSQRT,
|
||||
FROUND,
|
||||
FFLOOR,
|
||||
FCEIL,
|
||||
|
||||
CLC,
|
||||
SEC,
|
||||
@ -512,6 +524,18 @@ val instructionFormats = mutableMapOf(
|
||||
Opcode.FTOSB to InstructionFormat.from("F,r1,fr1"),
|
||||
Opcode.FTOUW to InstructionFormat.from("F,r1,fr1"),
|
||||
Opcode.FTOSW to InstructionFormat.from("F,r1,fr1"),
|
||||
Opcode.FPOW to InstructionFormat.from("F,fr1,fr2,fr3"),
|
||||
Opcode.FABS to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FSIN to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FCOS to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FTAN to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FATAN to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FLN to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FLOG to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FSQRT to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FROUND to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FFLOOR to InstructionFormat.from("F,fr1,fr2"),
|
||||
Opcode.FCEIL to InstructionFormat.from("F,fr1,fr2"),
|
||||
|
||||
Opcode.MSIG to InstructionFormat.from("BW,r1,r2"),
|
||||
Opcode.PUSH to InstructionFormat.from("BW,r1"),
|
||||
|
||||
@ -16,8 +16,8 @@ SYSCALLS:
|
||||
8 = gfx_enable ; enable graphics window r0.b = 0 -> lores 320x240, r0.b = 1 -> hires 640x480
|
||||
9 = gfx_clear ; clear graphics window with shade in r0.b
|
||||
10 = gfx_plot ; plot pixel in graphics window, r0.w/r1.w contain X and Y coordinates, r2.b contains brightness
|
||||
11 = <unused 1>
|
||||
12 = <unused 2>
|
||||
11 = decimal string to word (unsigned)
|
||||
12 = decimal string to word (signed)
|
||||
13 = wait ; wait certain amount of jiffies (1/60 sec)
|
||||
14 = waitvsync ; wait on vsync
|
||||
15 = sort_ubyte array
|
||||
@ -55,8 +55,8 @@ enum class Syscall {
|
||||
GFX_ENABLE,
|
||||
GFX_CLEAR,
|
||||
GFX_PLOT,
|
||||
UNUSED_1,
|
||||
UNUSED_2,
|
||||
STR_TO_UWORD,
|
||||
STR_TO_WORD,
|
||||
WAIT,
|
||||
WAITVSYNC,
|
||||
SORT_UBYTE,
|
||||
@ -301,6 +301,16 @@ object SysCalls {
|
||||
val value = vm.registers.getFloat(0)
|
||||
print(value)
|
||||
}
|
||||
Syscall.STR_TO_UWORD -> {
|
||||
val stringAddr = vm.registers.getUW(0)
|
||||
val string = vm.memory.getString(stringAddr.toInt())
|
||||
vm.registers.setUW(0, string.toUShort())
|
||||
}
|
||||
Syscall.STR_TO_WORD -> {
|
||||
val stringAddr = vm.registers.getUW(0)
|
||||
val string = vm.memory.getString(stringAddr.toInt())
|
||||
vm.registers.setSW(0, string.toShort())
|
||||
}
|
||||
else -> TODO("syscall ${call.name}")
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user