def filled(self, params, ctx):
reads = set()
writes = set()
values = dict()
loads = []
for x in self.reads:
if x.startswith("#"):
assert(len(x) == 2)
value = params[x[1]]
operand = placeholders.get(x[1], value)
if hasattr(operand, 'target'):
reads.add('mem')
reads |= regutil.splitRegister('HL') # TODO: XXX: bad
else:
reads |= regutil.splitRegister(operand.name)
else:
reads |= regutil.splitRegister(x)
for x in self.writes:
if x.startswith("#"):
assert(len(x) == 2)
value = params[x[1]]
operand = placeholders.get(x[1], value)
if hasattr(operand, 'target'):
name = '['+operand.target.name+']'
writes.add('mem')
reads |= regutil.splitRegister('HL') # TODO: XXX: bad
else:
name = operand.name
writes |= regutil.splitRegister(name)
if x in self.values:
e = expression.parse(self.values[x])
values[name] = e.optimizedWithContext(ctx)
loads.append((name, values[name]))
else:
writes |= regutil.splitRegister(x)
if x in self.values:
e = expression.parse(self.values[x])
values[x] = e.optimizedWithContext(ctx)
loads.append((x, values[x]))
#values = dict() # TODO: XXX:
#loads = []
return reads, writes, values, loads
def make_context(params, argument, next_addr):
ctx = context.Context()
if next_addr.bank() > 0:
ctx.setValue('ROMBANK', operand.Constant(next_addr.bank()))
ctx.setValue('v8', operand.Constant(argument))
ctx.setValue('FF00_v8', operand.Constant(0xFF00 + argument))
ctx.setValue('v16', operand.Constant(argument))
offset = argument
if offset & 0x80: # convert to signed offset
offset -= 0x100
ctx.setValue('v8_rel', operand.Constant(next_addr.offset(offset).virtual()))
for p in params:
value = placeholders.get(p, params[p])
ctx.setValue('#'+p, value)
return ctx
