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added boolean() builtin function and use it to get rid of !=0 comparisons

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This commit is contained in:
Irmen de Jong
2022-06-14 22:31:13 +02:00
parent bf9d120081
commit cc174b7b85
10 changed files with 87 additions and 71 deletions
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codeGenVirtual/src/prog8/codegen/virtual/BuiltinFuncGen.kt
+25
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@@ -32,6 +32,7 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
"callrom" -> throw AssemblyError("callrom() is for cx16 target only")
"msb" -> funcMsb(call, resultRegister)
"lsb" -> funcLsb(call, resultRegister)
"boolean" -> funcBoolean(call, resultRegister)
"memory" -> funcMemory(call, resultRegister)
"peek" -> funcPeek(call, resultRegister)
"peekw" -> funcPeekW(call, resultRegister)
@@ -354,6 +355,30 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
return code
}
private fun funcBoolean(call: PtBuiltinFunctionCall, resultRegister: Int): VmCodeChunk {
val code = VmCodeChunk()
val vmDt = codeGen.vmType(call.args[0].type)
when (vmDt) {
VmDataType.FLOAT -> {
val fpValueReg = codeGen.vmRegisters.nextFreeFloat()
val fpSignReg = codeGen.vmRegisters.nextFreeFloat()
code += exprGen.translateExpression(call.args.single(), -1, fpValueReg)
code += VmCodeInstruction(Opcode.SGN, VmDataType.FLOAT, fpReg1 = fpSignReg, fpReg2 = fpValueReg)
code += VmCodeInstruction(Opcode.FTOSB, VmDataType.FLOAT, reg1 = resultRegister, fpReg1 = fpSignReg)
}
VmDataType.WORD -> {
val msbReg = codeGen.vmRegisters.nextFree()
code += exprGen.translateExpression(call.args.single(), resultRegister, -1)
code += VmCodeInstruction(Opcode.MSIG, VmDataType.BYTE, reg1 = msbReg, reg2=resultRegister)
code += VmCodeInstruction(Opcode.OR, VmDataType.BYTE, reg1=resultRegister, reg2=msbReg)
}
else -> {
code += exprGen.translateExpression(call.args.single(), resultRegister, -1)
}
}
return code
}
private fun funcRolRor(opcode: Opcode, call: PtBuiltinFunctionCall, resultRegister: Int): VmCodeChunk {
val vmDt = codeGen.vmType(call.args[0].type)
val code = VmCodeChunk()