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https://github.com/irmen/prog8.git
synced 2024-12-23 09:32:43 +00:00
no need for intermediary returnvalue var for prefix expressions
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77c2b2b326
commit
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@ -312,22 +312,21 @@ internal class FunctionCallAsmGen(private val program: Program, private val asmg
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is IdentifierReference -> {
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val sourceName = asmgen.asmVariableName(value)
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asmgen.out("""
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pha
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clc
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lda $sourceName
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beq +
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sec
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+ pla
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""")
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pha
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clc
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lda $sourceName
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beq +
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sec
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+ pla""")
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}
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else -> {
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asmgen.assignExpressionToRegister(value, RegisterOrPair.A)
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asmgen.out("""
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beq +
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sec
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bcs ++
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+ clc
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+""")
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beq +
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sec
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bcs ++
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+ clc
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+""")
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}
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}
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} else throw AssemblyError("can only use Carry as status flag parameter")
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@ -1824,18 +1824,18 @@ internal class AugmentableAssignmentAsmGen(private val program: Program,
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cmp #0
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beq +
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lda #1
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+ eor #1""")
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+ eor #1""")
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RegisterOrPair.X -> asmgen.out("""
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txa
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beq +
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lda #1
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+ eor #1
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+ eor #1
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tax""")
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RegisterOrPair.Y -> asmgen.out("""
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tya
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beq +
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lda #1
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+ eor #1
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+ eor #1
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tay""")
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else -> throw AssemblyError("invalid reg dt for byte not")
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}
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@ -466,21 +466,13 @@ class StatementOptimizer(private val program: Program,
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return null
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}
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when(returnStmt.value) {
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is PrefixExpression -> {
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val mod = returnViaIntermediaryVar(returnStmt.value!!)
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if(mod!=null)
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return mod
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}
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is BinaryExpression -> {
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val mod = returnViaIntermediaryVar(returnStmt.value!!)
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if(mod!=null)
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return mod
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}
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else -> {}
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if(returnStmt.value is BinaryExpression) {
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val mod = returnViaIntermediaryVar(returnStmt.value!!)
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if(mod!=null)
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return mod
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}
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return super.after(returnStmt, parent)
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return noModifications
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}
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private fun hasBreak(scope: IStatementContainer): Boolean {
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@ -3,10 +3,6 @@ TODO
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For next compiler release (7.6)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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why does the following use a intermediate return value and not just A?
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sub pushing_start() -> ubyte {
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return joy_info & 16
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}
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...
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