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Fix for i,$FF,downto,0

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Karol Stasiak 2018-06-12 23:35:26 +02:00
parent 5ee550af3b
commit 780bfa3428
1 changed files with 6 additions and 1 deletions
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7
src/main/scala/millfork/compiler/mos/MosStatementCompiler.scala
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@ -415,7 +415,12 @@ object MosStatementCompiler {
compile(ctx.addLabels(names, Label(end), Label(end)), Assignment(vex, LiteralExpression(s, ssize)) :: f.body) ++ labelChunk(end)
case (ForDirection.DownTo, Some(NumericConstant(s, ssize)), Some(NumericConstant(e, esize))) if s < e =>
Nil
case (ForDirection.DownTo, Some(NumericConstant(s, ssize)), Some(NumericConstant(0, esize))) if s > 0 =>
case (ForDirection.DownTo, Some(NumericConstant(s, 1)), Some(NumericConstant(0, _))) if s > 0 =>
compile(ctx, List(
Assignment(vex, FunctionCallExpression("lo", List(SumExpression(List(false -> f.start, false -> LiteralExpression(1, 2)), decimal = false)))),
DoWhileStatement(decrement :: f.body, Nil, FunctionCallExpression("!=", List(vex, f.end)), names)
))
case (ForDirection.DownTo, Some(NumericConstant(s, ssize)), Some(NumericConstant(0, _))) if s > 0 =>
compile(ctx, List(
Assignment(vex, SumExpression(List(false -> f.start, false -> LiteralExpression(1, 1)), decimal = false)),
DoWhileStatement(decrement :: f.body, Nil, FunctionCallExpression("!=", List(vex, f.end)), names)