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correctly allow codegen to proceed for byte->word register assignment. Fixes crash #58

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This commit is contained in:
Irmen de Jong 2021-09-06 23:22:43 +02:00
parent af99173cd7
commit 754664aefa
1 changed files with 4 additions and 2 deletions
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6
compiler/src/prog8/compiler/target/cpu6502/codegen/assignment/AssignmentAsmGen.kt
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@ -1359,8 +1359,10 @@ internal class AssignmentAsmGen(private val program: Program, private val asmgen
}
internal fun assignRegisterByte(target: AsmAssignTarget, register: CpuRegister) {
// we make an exception in the type check for assigning something to a cx16 virtual register
if(target.register !in Cx16VirtualRegisters) {
// we make an exception in the type check for assigning something to a cx16 virtual register, or a register pair
// these will be correctly typecasted from a byte to a word value
if(target.register !in Cx16VirtualRegisters &&
target.register!=RegisterOrPair.AX && target.register!=RegisterOrPair.AY && target.register!=RegisterOrPair.XY) {
if(target.kind==TargetStorageKind.VARIABLE) {
val parts = target.asmVarname.split('.')
if (parts.size != 2 || parts[0] != "cx16")