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got rid of unnecessary cast of boolean expressions by making their type dynamically adjust to byte or word

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This commit is contained in:
Irmen de Jong
2022-04-04 23:43:55 +02:00
parent 1d342cc6af
commit 036d9dbe59
8 changed files with 50 additions and 32 deletions
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17
codeGenVirtual/src/prog8/codegen/virtual/BuiltinFuncGen.kt
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@@ -3,6 +3,7 @@ package prog8.codegen.virtual
import prog8.code.ast.PtBuiltinFunctionCall
import prog8.code.ast.PtNumber
import prog8.code.ast.PtString
import prog8.code.core.WordDatatypes
import prog8.vm.Opcode
import prog8.vm.Syscall
import prog8.vm.VmDataType
@@ -82,6 +83,7 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
code += VmCodeInstruction(Opcode.LOADR, VmDataType.BYTE, reg1=resultRegister, reg2=0)
}
"peek" -> {
// should just be a memory read
val addressReg = codeGen.vmRegisters.nextFree()
code += exprGen.translateExpression(call.args.single(), addressReg)
code += VmCodeInstruction(Opcode.LOADI, VmDataType.BYTE, reg1 = resultRegister, reg2=addressReg)
@@ -91,6 +93,21 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
code += exprGen.translateExpression(call.args.single(), addressReg)
code += VmCodeInstruction(Opcode.LOADI, VmDataType.WORD, reg1 = resultRegister, reg2=addressReg)
}
"poke" -> {
// should just be a memory write
val addressReg = codeGen.vmRegisters.nextFree()
val valueReg = codeGen.vmRegisters.nextFree()
code += exprGen.translateExpression(call.args[0], addressReg)
code += exprGen.translateExpression(call.args[1], valueReg)
code += VmCodeInstruction(Opcode.STOREI, VmDataType.BYTE, reg1 = addressReg, reg2=valueReg)
}
"pokew" -> {
val addressReg = codeGen.vmRegisters.nextFree()
val valueReg = codeGen.vmRegisters.nextFree()
code += exprGen.translateExpression(call.args[0], addressReg)
code += exprGen.translateExpression(call.args[1], valueReg)
code += VmCodeInstruction(Opcode.STOREI, VmDataType.WORD, reg1 = addressReg, reg2=valueReg)
}
"mkword" -> {
val msbReg = codeGen.vmRegisters.nextFree()
val lsbReg = codeGen.vmRegisters.nextFree()