mirror of
https://github.com/irmen/prog8.git
synced 2024-11-22 15:33:02 +00:00
asmsubroutines now also return their value on the evalstack (this fixes their use in expressions)
This commit is contained in:
Irmen de Jong
parent
8811d2f7c5
commit
95f7c9bad0
@ -790,7 +790,7 @@ data class AssignTarget(val register: Register?,
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fun shortString(withTypePrefix: Boolean=false): String {
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if(register!=null)
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return (if(withTypePrefix) "0register::" else "") + register.toString()
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return (if(withTypePrefix) "0register::" else "") + register.name
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if(identifier!=null)
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return (if(withTypePrefix) "3identifier::" else "") + identifier.nameInSource.last()
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if(arrayindexed!=null)
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@ -1137,9 +1137,9 @@ private class AstChecker(private val namespace: INameScope,
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checkResult.add(ExpressionError("cannot assign word to byte, use msb() or lsb()?", position))
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}
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else if(sourceDatatype==DataType.FLOAT && targetDatatype in IntegerDatatypes)
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checkResult.add(ExpressionError("cannot assign float to ${targetDatatype.toString().toLowerCase()}; possible loss of precision. Suggestion: round the value or revert to integer arithmetic", position))
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checkResult.add(ExpressionError("cannot assign float to ${targetDatatype.name.toLowerCase()}; possible loss of precision. Suggestion: round the value or revert to integer arithmetic", position))
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else
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checkResult.add(ExpressionError("cannot assign ${sourceDatatype.toString().toLowerCase()} to ${targetDatatype.toString().toLowerCase()}", position))
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checkResult.add(ExpressionError("cannot assign ${sourceDatatype.name.toLowerCase()} to ${targetDatatype.name.toLowerCase()}", position))
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return false
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}
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@ -615,7 +615,7 @@ internal class Compiler(private val rootModule: Module,
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private fun translate(expr: IExpression) {
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when(expr) {
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is RegisterExpr -> {
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prog.instr(Opcode.PUSH_VAR_BYTE, callLabel = expr.register.toString())
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prog.instr(Opcode.PUSH_VAR_BYTE, callLabel = expr.register.name)
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}
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is PrefixExpression -> {
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translate(expr.expression)
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@ -645,7 +645,7 @@ internal class Compiler(private val rootModule: Module,
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if(target is BuiltinFunctionStatementPlaceholder) {
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// call to a builtin function (some will just be an opcode!)
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val funcname = expr.target.nameInSource[0]
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translateFunctionCall(funcname, expr.arglist)
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translateBuiltinFunctionCall(funcname, expr.arglist)
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} else {
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when(target) {
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is Subroutine -> translateSubroutineCall(target, expr.arglist, expr.position)
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@ -761,7 +761,7 @@ internal class Compiler(private val rootModule: Module,
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val targetStmt = stmt.target.targetStatement(namespace)!!
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if(targetStmt is BuiltinFunctionStatementPlaceholder) {
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val funcname = stmt.target.nameInSource[0]
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translateFunctionCall(funcname, stmt.arglist)
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translateBuiltinFunctionCall(funcname, stmt.arglist)
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return
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}
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@ -771,20 +771,18 @@ internal class Compiler(private val rootModule: Module,
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is Subroutine -> {
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translateSubroutineCall(targetStmt, stmt.arglist, stmt.position)
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// make sure we clean up the unused result values from the stack
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// only if they're non-register return values!
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if(targetStmt.asmReturnvaluesRegisters.isEmpty())
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for(rv in targetStmt.returntypes) {
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val opcode=opcodeDiscard(rv)
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prog.instr(opcode)
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}
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for(rv in targetStmt.returntypes) {
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val opcode=opcodeDiscard(rv)
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prog.instr(opcode)
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}
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}
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else ->
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throw AstException("invalid call target node type: ${targetStmt::class}")
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}
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}
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private fun translateFunctionCall(funcname: String, args: List<IExpression>) {
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// some functions are implemented as vm opcodes
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private fun translateBuiltinFunctionCall(funcname: String, args: List<IExpression>) {
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// some builtin functions are implemented directly as vm opcodes
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if(funcname == "swap") {
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translateSwap(args)
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@ -1000,157 +998,7 @@ internal class Compiler(private val rootModule: Module,
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// We don't bother about saving A and Y. They're considered expendable.
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if(subroutine.isAsmSubroutine) {
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if(subroutine.parameters.size!=subroutine.asmParameterRegisters.size)
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throw CompilerException("no support for mix of register and non-register subroutine arguments")
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// only register arguments (or status-flag bits)
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var carryParam: Boolean? = null
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for(arg in arguments.zip(subroutine.asmParameterRegisters)) {
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if(arg.second.statusflag!=null) {
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if(arg.second.statusflag==Statusflag.Pc)
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carryParam = arg.first.constValue(namespace, heap)!!.asBooleanValue
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else
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throw CompilerException("no support for status flag parameter: ${arg.second.statusflag}")
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} else {
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when (arg.second.registerOrPair!!) {
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A -> {
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val assign = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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X -> {
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if(!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val assign = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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Y -> {
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val assign = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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AX -> {
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if(!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val valueA: IExpression
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val valueX: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueA=arg.first
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valueX=LiteralValue.optimalInteger(0, callPosition)
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val assignA = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, valueA, callPosition)
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val assignX = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, valueX, callPosition)
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assignA.linkParents(arguments[0].parent)
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assignX.linkParents(arguments[0].parent)
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translate(assignA)
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translate(assignX)
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}
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DataType.UWORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers AX at $callPosition")
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}
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}
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AY -> {
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val valueA: IExpression
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val valueY: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueA=arg.first
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valueY=LiteralValue.optimalInteger(0, callPosition)
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val assignA = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, valueA, callPosition)
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val assignY = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, valueY, callPosition)
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assignA.linkParents(arguments[0].parent)
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assignY.linkParents(arguments[0].parent)
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translate(assignA)
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translate(assignY)
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}
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DataType.UWORD, DataType.WORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers AY at $callPosition")
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}
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}
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XY -> {
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if(!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val valueX: IExpression
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val valueY: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueX=arg.first
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valueY=LiteralValue.optimalInteger(0, callPosition)
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val assignX = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, valueX, callPosition)
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val assignY = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, valueY, callPosition)
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assignX.linkParents(arguments[0].parent)
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assignY.linkParents(arguments[0].parent)
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translate(assignX)
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translate(assignY)
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}
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DataType.UWORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers XY at $callPosition")
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}
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}
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}
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}
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}
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// carry is set last, to avoid clobbering it when loading the other parameters
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when(carryParam) {
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true -> prog.instr(Opcode.SEC)
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false -> prog.instr(Opcode.CLC)
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}
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restoreX = translateAsmSubCallArguments(subroutine, arguments, callPosition, restoreX)
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} else {
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// only regular (non-register) arguments
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// "assign" the arguments to the locally scoped parameter variables for this subroutine
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@ -1165,6 +1013,176 @@ internal class Compiler(private val rootModule: Module,
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prog.instr(Opcode.CALL, callLabel = subroutine.scopedname)
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if(restoreX)
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prog.instr(Opcode.RRESTOREX)
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if(subroutine.isAsmSubroutine && subroutine.asmReturnvaluesRegisters.isNotEmpty()) {
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// the result values of the asm-subroutine that are returned in registers, have to be pushed on the stack
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// (in reversed order) otherwise the asm-subroutine can't be used in expressions.
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for(rv in subroutine.asmReturnvaluesRegisters.reversed()) {
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if(rv.statusflag!=null)
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TODO("not yet supported: return values in cpu status flag $rv $subroutine")
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when(rv.registerOrPair) {
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A,X,Y -> prog.instr(Opcode.PUSH_VAR_BYTE, callLabel = rv.registerOrPair.name)
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AX, AY, XY -> prog.instr(Opcode.PUSH_VAR_WORD, callLabel = rv.registerOrPair.name)
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null -> {}
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}
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}
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}
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}
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private fun translateAsmSubCallArguments(subroutine: Subroutine, arguments: List<IExpression>, callPosition: Position, restoreXinitial: Boolean): Boolean {
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var restoreX = restoreXinitial
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if (subroutine.parameters.size != subroutine.asmParameterRegisters.size)
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TODO("no support yet for mix of register and non-register subroutine arguments")
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// only register arguments (or status-flag bits)
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var carryParam: Boolean? = null
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for (arg in arguments.zip(subroutine.asmParameterRegisters)) {
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if (arg.second.statusflag != null) {
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if (arg.second.statusflag == Statusflag.Pc)
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carryParam = arg.first.constValue(namespace, heap)!!.asBooleanValue
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else
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throw CompilerException("no support for status flag parameter: ${arg.second.statusflag}")
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} else {
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when (arg.second.registerOrPair!!) {
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A -> {
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val assign = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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X -> {
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if (!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val assign = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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Y -> {
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val assign = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, arg.first, callPosition)
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assign.linkParents(arguments[0].parent)
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translate(assign)
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}
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AX -> {
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if (!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val valueA: IExpression
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val valueX: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueA = arg.first
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valueX = LiteralValue.optimalInteger(0, callPosition)
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val assignA = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, valueA, callPosition)
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val assignX = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, valueX, callPosition)
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assignA.linkParents(arguments[0].parent)
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assignX.linkParents(arguments[0].parent)
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translate(assignA)
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translate(assignX)
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}
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DataType.UWORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAX_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers AX at $callPosition")
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}
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}
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AY -> {
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val valueA: IExpression
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val valueY: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueA = arg.first
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valueY = LiteralValue.optimalInteger(0, callPosition)
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val assignA = Assignment(listOf(AssignTarget(Register.A, null, null, null, callPosition)), null, valueA, callPosition)
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val assignY = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, valueY, callPosition)
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assignA.linkParents(arguments[0].parent)
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assignY.linkParents(arguments[0].parent)
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translate(assignA)
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translate(assignY)
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}
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DataType.UWORD, DataType.WORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGAY_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers AY at $callPosition")
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}
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}
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XY -> {
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if (!restoreX) {
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prog.instr(Opcode.RSAVEX)
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restoreX = true
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}
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val valueX: IExpression
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val valueY: IExpression
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val paramDt = arg.first.resultingDatatype(namespace, heap)
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when (paramDt) {
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DataType.UBYTE -> {
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valueX = arg.first
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valueY = LiteralValue.optimalInteger(0, callPosition)
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val assignX = Assignment(listOf(AssignTarget(Register.X, null, null, null, callPosition)), null, valueX, callPosition)
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val assignY = Assignment(listOf(AssignTarget(Register.Y, null, null, null, callPosition)), null, valueY, callPosition)
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assignX.linkParents(arguments[0].parent)
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assignY.linkParents(arguments[0].parent)
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translate(assignX)
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translate(assignY)
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}
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DataType.UWORD -> {
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translate(arg.first)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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DataType.STR, DataType.STR_S -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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DataType.FLOAT -> {
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pushFloatAddress(arg.first)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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in ArrayDatatypes -> {
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pushStringAddress(arg.first, false)
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prog.instr(Opcode.POP_REGXY_WORD)
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}
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else -> TODO("pass parameter of type $paramDt in registers XY at $callPosition")
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}
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}
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}
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}
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}
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// carry is set last, to avoid clobbering it when loading the other parameters
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when (carryParam) {
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true -> prog.instr(Opcode.SEC)
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false -> prog.instr(Opcode.CLC)
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}
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return restoreX
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}
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private fun translateBinaryOperator(operator: String, dt: DataType) {
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@ -1442,8 +1460,8 @@ internal class Compiler(private val rootModule: Module,
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prog.line(stmt.position)
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when {
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stmt.target.register != null -> when(stmt.operator) {
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"++" -> prog.instr(Opcode.INC_VAR_UB, callLabel = stmt.target.register.toString())
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"--" -> prog.instr(Opcode.DEC_VAR_UB, callLabel = stmt.target.register.toString())
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"++" -> prog.instr(Opcode.INC_VAR_UB, callLabel = stmt.target.register!!.name)
|
||||
"--" -> prog.instr(Opcode.DEC_VAR_UB, callLabel = stmt.target.register!!.name)
|
||||
}
|
||||
stmt.target.identifier != null -> {
|
||||
val targetStatement = stmt.target.identifier!!.targetStatement(namespace) as VarDecl
|
||||
@ -1541,15 +1559,6 @@ internal class Compiler(private val rootModule: Module,
|
||||
if(stmt.aug_op!=null)
|
||||
throw CompilerException("augmented assignment should have been converted to regular assignment already")
|
||||
|
||||
if(stmt.value is FunctionCall) {
|
||||
val sub = (stmt.value as FunctionCall).target.targetStatement(namespace)
|
||||
if(sub is Subroutine && sub.asmReturnvaluesRegisters.isNotEmpty()) {
|
||||
// the subroutine call returns its values in registers
|
||||
storeRegisterIntoTarget(sub.asmReturnvaluesRegisters.single(), assignTarget, stmt)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// pop the result value back into the assignment target
|
||||
val datatype = assignTarget.determineDatatype(namespace, heap, stmt)!!
|
||||
popValueIntoTarget(assignTarget, datatype)
|
||||
@ -1581,6 +1590,7 @@ internal class Compiler(private val rootModule: Module,
|
||||
private fun translateMultiReturnAssignment(stmt: Assignment) {
|
||||
val targetStmt = (stmt.value as? FunctionCall)?.target?.targetStatement(namespace)
|
||||
if(targetStmt is Subroutine && targetStmt.isAsmSubroutine) {
|
||||
// TODO check correctness of multi-return values (they should be on the stack rather than directly assigned!)
|
||||
// we're dealing with the one case where multiple assignment targets are allowed: a call to an asmsub with multiple return values
|
||||
// for now, we only support multiple return values as long as they're returned in registers as well.
|
||||
if(targetStmt.asmReturnvaluesRegisters.isEmpty())
|
||||
@ -1667,7 +1677,7 @@ internal class Compiler(private val rootModule: Module,
|
||||
}
|
||||
} else throw CompilerException("invalid assignment target type ${target::class}")
|
||||
}
|
||||
assignTarget.register != null -> prog.instr(Opcode.POP_VAR_BYTE, callLabel = assignTarget.register.toString())
|
||||
assignTarget.register != null -> prog.instr(Opcode.POP_VAR_BYTE, callLabel = assignTarget.register.name)
|
||||
assignTarget.arrayindexed != null -> translate(assignTarget.arrayindexed, true) // write value to it
|
||||
assignTarget.memoryAddress != null -> {
|
||||
val address = assignTarget.memoryAddress?.addressExpression?.constValue(namespace, heap)?.asIntegerValue
|
||||
@ -1703,7 +1713,7 @@ internal class Compiler(private val rootModule: Module,
|
||||
|
||||
if(loop.loopRegister!=null) {
|
||||
val reg = loop.loopRegister
|
||||
loopVarName = reg.toString()
|
||||
loopVarName = reg.name
|
||||
loopVarDt = DataType.UBYTE
|
||||
} else {
|
||||
val loopvar = (loop.loopVar!!.targetStatement(namespace) as VarDecl)
|
||||
@ -2036,7 +2046,7 @@ internal class Compiler(private val rootModule: Module,
|
||||
postIncr.linkParents(body)
|
||||
translate(postIncr)
|
||||
if(lvTarget.register!=null)
|
||||
prog.instr(Opcode.PUSH_VAR_BYTE, callLabel =lvTarget.register.toString())
|
||||
prog.instr(Opcode.PUSH_VAR_BYTE, callLabel =lvTarget.register.name)
|
||||
else {
|
||||
val opcode = opcodePushvar(targetStatement!!.datatype)
|
||||
prog.instr(opcode, callLabel = targetStatement.scopedname)
|
||||
|
||||
@ -23,10 +23,10 @@ open class Instruction(val opcode: Opcode,
|
||||
}
|
||||
opcode in opcodesWithVarArgument -> {
|
||||
// opcodes that manipulate a variable
|
||||
"${opcode.toString().toLowerCase()} ${callLabel?:""} ${callLabel2?:""}".trimEnd()
|
||||
"${opcode.name.toLowerCase()} ${callLabel?:""} ${callLabel2?:""}".trimEnd()
|
||||
}
|
||||
callLabel==null -> "${opcode.toString().toLowerCase()} $argStr"
|
||||
else -> "${opcode.toString().toLowerCase()} $callLabel $argStr"
|
||||
callLabel==null -> "${opcode.name.toLowerCase()} $argStr"
|
||||
else -> "${opcode.name.toLowerCase()} $callLabel $argStr"
|
||||
}
|
||||
.trimEnd()
|
||||
|
||||
|
||||
@ -462,11 +462,11 @@ class IntermediateProgram(val name: String, var loadAddress: Int, val heap: Heap
|
||||
heap.allEntries().forEach {
|
||||
when {
|
||||
it.value.str!=null ->
|
||||
out.println("${it.key} ${it.value.type.toString().toLowerCase()} \"${escape(it.value.str!!)}\"")
|
||||
out.println("${it.key} ${it.value.type.name.toLowerCase()} \"${escape(it.value.str!!)}\"")
|
||||
it.value.array!=null ->
|
||||
out.println("${it.key} ${it.value.type.toString().toLowerCase()} ${it.value.array!!.toList()}")
|
||||
out.println("${it.key} ${it.value.type.name.toLowerCase()} ${it.value.array!!.toList()}")
|
||||
it.value.doubleArray!=null ->
|
||||
out.println("${it.key} ${it.value.type.toString().toLowerCase()} ${it.value.doubleArray!!.toList()}")
|
||||
out.println("${it.key} ${it.value.type.name.toLowerCase()} ${it.value.doubleArray!!.toList()}")
|
||||
else -> throw CompilerException("invalid heap entry $it")
|
||||
}
|
||||
}
|
||||
@ -477,12 +477,12 @@ class IntermediateProgram(val name: String, var loadAddress: Int, val heap: Heap
|
||||
out.println("%variables")
|
||||
for(variable in blk.variables) {
|
||||
val valuestr = variable.value.toString()
|
||||
out.println("${variable.key} ${variable.value.type.toString().toLowerCase()} $valuestr")
|
||||
out.println("${variable.key} ${variable.value.type.name.toLowerCase()} $valuestr")
|
||||
}
|
||||
out.println("%end_variables")
|
||||
out.println("%memorypointers")
|
||||
for(iconst in blk.memoryPointers) {
|
||||
out.println("${iconst.key} ${iconst.value.second.toString().toLowerCase()} uw:${iconst.value.first.toString(16)}")
|
||||
out.println("${iconst.key} ${iconst.value.second.name.toLowerCase()} uw:${iconst.value.first.toString(16)}")
|
||||
}
|
||||
out.println("%end_memorypointers")
|
||||
out.println("%instructions")
|
||||
|
||||
@ -514,8 +514,9 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
Syscall.FUNC_MAX_F,
|
||||
Syscall.FUNC_MIN_F,
|
||||
Syscall.FUNC_AVG_F,
|
||||
Syscall.FUNC_SUM_F -> " jsr c64flt.${call.toString().toLowerCase()}"
|
||||
else -> " jsr prog8_lib.${call.toString().toLowerCase()}"
|
||||
Syscall.FUNC_SUM_F -> " jsr c64flt.${call.name.toLowerCase()}"
|
||||
null -> ""
|
||||
else -> " jsr prog8_lib.${call.name.toLowerCase()}"
|
||||
}
|
||||
}
|
||||
Opcode.BREAKPOINT -> {
|
||||
|
||||
@ -357,7 +357,6 @@ waitkey:
|
||||
ubyte yp2 = ypos+2
|
||||
ubyte yp3 = ypos+3
|
||||
|
||||
; @todo the boolean expression below currently doesn't work because the result of an asmsub call (getchr) is not put on the stack right now
|
||||
if(currentBlock[0] and c64scr.getchr(x, ypos)!=32)
|
||||
return false
|
||||
if(currentBlock[4] and c64scr.getchr(x, yp1)!=32)
|
||||
@ -414,7 +413,6 @@ waitkey:
|
||||
ubyte yp2 = ypos+2
|
||||
ubyte yp3 = ypos+3
|
||||
|
||||
; @todo the boolean expression below currently doesn't work because the result of an asmsub call (getchr) is not put on the stack right now
|
||||
if(currentBlock[3] and c64scr.getchr(x, ypos)!=32)
|
||||
return false
|
||||
if(currentBlock[7] and c64scr.getchr(x, yp1)!=32)
|
||||
|
||||
@ -7,16 +7,46 @@
|
||||
|
||||
; @todo see looplabelproblem.p8
|
||||
|
||||
|
||||
;ubyte x = rnd82() % 6 ; @todo fix compiler crash + always 0???
|
||||
|
||||
; if(X and c64scr.getcc(1,1)!=32) ... @todo the result value of the asmsub getcc is not put on the eval stack when used in an expression
|
||||
|
||||
sub start() {
|
||||
ubyte xx
|
||||
|
||||
c64scr.print_ub(X)
|
||||
c64.CHROUT('\n')
|
||||
|
||||
A=c64scr.getchr(20,1)
|
||||
c64scr.print_ub(A)
|
||||
c64.CHROUT('\n')
|
||||
xx=c64scr.getchr(20,1)
|
||||
c64scr.print_ub(xx)
|
||||
c64.CHROUT('\n')
|
||||
c64scr.print_ub(X)
|
||||
c64.CHROUT('\n')
|
||||
|
||||
A=1+c64scr.getchr(20,1)
|
||||
c64scr.print_ub(A)
|
||||
c64.CHROUT('\n')
|
||||
xx=1+c64scr.getchr(20,1)
|
||||
c64scr.print_ub(xx)
|
||||
c64.CHROUT('\n')
|
||||
c64scr.print_ub(X)
|
||||
c64.CHROUT('\n')
|
||||
|
||||
A=c64scr.getchr(20,1)+1
|
||||
c64scr.print_ub(A)
|
||||
c64.CHROUT('\n')
|
||||
xx=c64scr.getchr(20,1)+1
|
||||
c64scr.print_ub(xx)
|
||||
c64.CHROUT('\n')
|
||||
c64scr.print_ub(X)
|
||||
c64.CHROUT('\n')
|
||||
|
||||
|
||||
}
|
||||
|
||||
asmsub asm_routine(ubyte arg1 @ A, ubyte arg2 @ Y) -> clobbers() -> (ubyte @ A) {
|
||||
return A+Y
|
||||
}
|
||||
|
||||
sub drawNext(ubyte x) {
|
||||
A=x
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user