def block(self, d, a, b): code = self.get_active_code() temp = code.prgm.acquire_register() spu.cgt(temp, a, b) spu.ceq(d, a, b) spu.or_(d, d, temp) code.prgm.release_register(temp) return
def end(self, branch = True):
"""Do post-loop iterator code"""
if self.hint == True:
self.code.add(spu.hbrr(self.branch_label, self.start_label))
if self.mode == DEC:
# branch if r_count is not zero (CR)
# Note that this relies on someone (e.g. cleanup()) setting the
# condition register properly.
if branch:
self.code.add(self.branch_label)
self.code.add(spu.brnz(self.r_count, self.start_label))
# Reset the counter in case this is a nested loop
util.load_word(self.code, self.r_count, self.get_count())
elif self.mode == INC:
# branch if r_current < r_stop
if branch:
r_cmp_gt = self.code.prgm.acquire_register()
self.code.add(spu.cgt(r_cmp_gt, self.r_stop, self.r_count))
self.code.add(self.branch_label)
self.code.add(spu.brnz(r_cmp_gt, self.start_label))
self.code.prgm.release_register(r_cmp_gt)
# Reset the the current value in case this is a nested loop
if self._external_start:
self.code.add(spu.ai(self.r_count, self.r_start, 0))
else:
util.load_word(self.code, self.r_count, self.get_start())
if self.r_count is not None:
self.code.prgm.release_register(self.r_count)
if self.r_stop is not None and not self._external_stop:
self.code.prgm.release_register(self.r_stop)
return
def block(self, d, a, b): spu.cgt(d, b, a) return