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Interesting dead end we've got ourselves into here.

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This commit is contained in:
Chris Pressey 2015-10-18 23:31:17 +01:00
parent 645079f03a
commit e3fe337730
2 changed files with 33 additions and 2 deletions
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23
eg/intr1.60p Normal file
View File

@ -0,0 +1,23 @@
byte vic_border @ 53280
vector cinv @ 788
vector save_cinv
routine our_cinv
inputs vic_border
outputs vic_border
trashes z, n
{
inc vic_border
}
routine main
inputs cinv, our_cinv
outputs cinv, save_cinv
trashes a, n, z
{
with interrupts off {
copy cinv, save_cinv
copy our_cinv, cinv
}
}

12
src/sixtypical/compiler.py
View File

@ -3,7 +3,7 @@
from sixtypical.ast import Program, Routine, Block, Instr from sixtypical.ast import Program, Routine, Block, Instr
from sixtypical.model import ( from sixtypical.model import (
ConstantRef, LocationRef, ConstantRef, LocationRef,
TYPE_BIT, TYPE_BIT, TYPE_ROUTINE, TYPE_VECTOR,
REG_A, REG_X, REG_Y, FLAG_Z, FLAG_N, FLAG_V, FLAG_C REG_A, REG_X, REG_Y, FLAG_Z, FLAG_N, FLAG_V, FLAG_C
) )
from sixtypical.emitter import Label, Byte from sixtypical.emitter import Label, Byte
@ -241,5 +241,13 @@ class Compiler(object):
self.emitter.emit(SEI()) self.emitter.emit(SEI())
self.compile_block(instr.block) self.compile_block(instr.block)
self.emitter.emit(CLI()) self.emitter.emit(CLI())
elif opcode == 'copy':
if src.type in (TYPE_ROUTINE, TYPE_VECTOR) and dest.type == TYPE_VECTOR:
self.emitter.emit(LDA(Absolute(self.labels[src.name])))
self.emitter.emit(STA(Absolute(self.labels[dest.name])))
self.emitter.emit(LDA(Absolute(self.labels[src.name].clone(offset=1))))
self.emitter.emit(STA(Absolute(self.labels[dest.name].clone(offset=1))))
else:
raise NotImplementedError(src.type)
else: else:
raise NotImplementedError raise NotImplementedError(opcode)