def end(self, branch = True):
if self.mode == CTR and branch:
self.code.add(ppc.bdnz(self.start_label))
elif 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(ppc.bgt(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:
self.code.add(ppc.cmpw(0, self.r_count, self.r_stop))
#self.code.add(ppc.cmp_(0, 2, self.r_count, self.r_stop))
self.code.add(ppc.blt(self.start_label))
# Reset the the current value in case this is a nested loop
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)
self.r_count = None
if self.r_stop is not None and not self.external_stop:
self.code.prgm.release_register(self.r_stop)
self.r_count = None
return
r = proc.execute(prgm, mode='int', debug=True)
print "int result:",r
assert(r == -1)
code.reset()
ppc.addi(prgm.gp_return, 0, 16)
ppc.mtctr(prgm.gp_return)
ppc.addi(prgm.gp_return, 0, 0)
lbl_loop = prgm.get_label("LOOP")
code.add(lbl_loop)
ppc.addi(prgm.gp_return, prgm.gp_return, 2)
ppc.bdnz(lbl_loop)
#prgm.print_code(hex = True)
r = proc.execute(prgm, mode='int', debug=True)
print "int result:",r
assert(r == 32)
#sys.exit(0)
# ------------------------------------------------------------
# Variables/Exprsesions
# ------------------------------------------------------------
# Without active code
ppc.set_active_code(None)
code.reset()
load_word(code, code.gp_return, 0xFFFFFFFF)
r = proc.execute(code, mode='int', debug=True)
print "int result:", r
assert (r == -1)
code.reset()
ppc.addi(code.gp_return, 0, 16)
ppc.mtctr(code.gp_return)
ppc.addi(code.gp_return, 0, 0)
lbl_loop = code.get_label("LOOP")
code.add(lbl_loop)
ppc.addi(code.gp_return, code.gp_return, 2)
ppc.bdnz(lbl_loop)
code.print_code(hex=True)
r = proc.execute(code, mode='int', debug=True)
print "int result:", r
assert (r == 32)
sys.exit(0)
# ------------------------------------------------------------
# Variables/Exprsesions
# ------------------------------------------------------------
# Without active code
ppc.set_active_code(None)
code.reset()