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Flatten more.

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This commit is contained in:
Chris Pressey 2018-03-05 15:32:08 +00:00
parent 1180d2fe2a
commit 8a7e3aaebb
1 changed files with 11 additions and 17 deletions
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28
src/sixtypical/compiler.py
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@ -379,23 +379,17 @@ class Compiler(object):
dest = instr.dest
src = instr.src
if isinstance(src, (LocationRef, ConstantRef)) and isinstance(dest, IndirectRef):
if src.type == TYPE_BYTE and isinstance(dest.ref.type, PointerType):
if isinstance(src, ConstantRef):
### copy 123, [ptr] + y
dest_label = self.get_label(dest.ref.name)
self.emitter.emit(LDA(Immediate(Byte(src.value))))
self.emitter.emit(STA(IndirectY(dest_label)))
elif isinstance(src, LocationRef):
### copy b, [ptr] + y
src_label = self.get_label(src.name)
dest_label = self.get_label(dest.ref.name)
self.emitter.emit(LDA(Absolute(src_label)))
self.emitter.emit(STA(IndirectY(dest_label)))
else:
raise NotImplementedError((src, dest))
else:
raise NotImplementedError((src, dest))
if isinstance(src, ConstantRef) and isinstance(dest, IndirectRef) and src.type == TYPE_BYTE and isinstance(dest.ref.type, PointerType):
### copy 123, [ptr] + y
dest_label = self.get_label(dest.ref.name)
self.emitter.emit(LDA(Immediate(Byte(src.value))))
self.emitter.emit(STA(IndirectY(dest_label)))
elif isinstance(src, LocationRef) and isinstance(dest, IndirectRef) and src.type == TYPE_BYTE and isinstance(dest.ref.type, PointerType):
### copy b, [ptr] + y
src_label = self.get_label(src.name)
dest_label = self.get_label(dest.ref.name)
self.emitter.emit(LDA(Absolute(src_label)))
self.emitter.emit(STA(IndirectY(dest_label)))
elif isinstance(src, IndirectRef) and isinstance(dest, LocationRef) and dest.type == TYPE_BYTE and isinstance(src.ref.type, PointerType):
### copy [ptr] + y, b
src_label = self.get_label(src.ref.name)