def scale_down(self, ref, out):
if self.type.scale != 1:
# TODO extract to constant reference
scaleparam = out.allocate_temp()
out.write(c.SetConst(scaleparam, self.type.scale))
out.write(c.OpDiv(ref, scaleparam))
out.free_temp(scaleparam)
def scale_other_to_this(self, other, otherref, out):
factor = self.type.scale / other.type.scale
op = c.OpMul
if factor < 1:
factor = 1 / factor
op = c.OpDiv
factor = int(factor)
if factor == 1:
return otherref, False
scaled = out.allocate_temp()
out.write(c.OpAssign(scaled, otherref))
# TODO extract to constant reference
scaleparam = out.allocate_temp()
out.write(c.SetConst(scaleparam, factor))
out.write(op(scaled, scaleparam))
out.free_temp(scaleparam)
return scaled, True
def _branch_apply(out, if_true, if_false, apply):
inverted = not if_true
if inverted:
if_true, if_false = if_false, if_true
have_false = if_false is not None
if have_false:
# Workaround: execute store doesn't set success to 0 if failed
# See MC-125058
# Can't use execute store anyway because it locks the success
# tracker. See MC-125145
out.write(c.SetConst(c.Var('success_tracker'), 0))
true_fn = c.Function(if_true.global_name)
out.write(
apply(c.ExecuteChain().cond('unless' if inverted else 'if')).run(
true_fn))
if have_false:
false_fn = c.Function(if_false.global_name)
out.write(c.ExecuteChain().cond('if').score_range(
c.Var('success_tracker'), c.ScoreRange(0, 0)).run(false_fn))
def set_const_val(self, value, out):
out.write(c.SetConst(self.ref, self.to_int(value)))
def apply(self, out, chain, storechain):
with chain.context(self.var.open_for_write(out)) as ref:
if storechain.store_type == 'success':
out.write(c.SetConst(ref, 0)) # MC-125058
storechain.score(ref)
def apply_const_src(self, ref, val, out):
srcref = out.allocate_temp()
out.write(c.SetConst(srcref, val))
out.write(self.with_ref(ref, srcref))
out.free_temp(srcref)
def extended_setup(self, up, down):
for i in range(self.page_size):
slot = c.Var('memory_slot_%d' % i)
up.append(c.SetConst(slot, 0).resolve(self.scope))
