def _set_literal_value(self, value):
# Put the lower 16 bits into r-temp
self.code.add(x86.addi(self.reg, 0, value))
# Addis r-temp with the upper 16 bits (shifted add immediate) and
# put the result in r-target
if (value & 0x7FFF) != value:
self.code.add(x86.addis(self.reg, self.reg, ((value + 32768) >> 16)))
return
def _set_literal_value(self, value):
# Put the lower 16 bits into r-temp
self.code.add(x86.addi(self.reg, 0, value))
# Addis r-temp with the upper 16 bits (shifted add immediate) and
# put the result in r-target
if (value & 0x7FFF) != value:
self.code.add(
x86.addis(self.reg, self.reg, ((value + 32768) >> 16)))
return
def SimpleTest():
"""
Just make sure things are working...
"""
from corepy.arch.x86.platform import Processor, InstructionStream
code = InstructionStream()
proc = Processor()
# Without active code
a = SignedWord(11, code)
b = SignedWord(31, reg=code.acquire_register())
c = SignedWord(reg=code.gp_return)
byte_mask = Bits(0xFF, code)
code.add(x86.addi(code.gp_return, 0, 31))
# c.v = a + SignedWord.cast(b & byte_mask) + 12
c.v = a + (byte_mask & b) + 12
if True:
r = proc.execute(code)
assert (r == (42 + 12))
# With active code
code.reset()
x86.set_active_code(code)
a = SignedWord(11)
b = SignedWord(31)
c = SignedWord(reg=code.gp_return)
byte_mask = Bits(0xFF)
c.v = a + (b & byte_mask)
x86.set_active_code(None)
r = proc.execute(code)
# code.print_code()
assert (r == 42)
return
def SimpleTest():
"""
Just make sure things are working...
"""
from corepy.arch.x86.platform import Processor, InstructionStream
code = InstructionStream()
proc = Processor()
# Without active code
a = SignedWord(11, code)
b = SignedWord(31, reg = code.acquire_register())
c = SignedWord(reg = code.gp_return)
byte_mask = Bits(0xFF, code)
code.add(x86.addi(code.gp_return, 0, 31))
# c.v = a + SignedWord.cast(b & byte_mask) + 12
c.v = a + (byte_mask & b) + 12
if True:
r = proc.execute(code)
assert(r == (42 + 12))
# With active code
code.reset()
x86.set_active_code(code)
a = SignedWord(11)
b = SignedWord(31)
c = SignedWord(reg = code.gp_return)
byte_mask = Bits(0xFF)
c.v = a + (b & byte_mask)
x86.set_active_code(None)
r = proc.execute(code)
# code.print_code()
assert(r == 42)
return
def copy_register(self, other):
return self.code.add(x86.addi(self, other, 0))
def copy_register(self, other): return self.code.add(x86.addi(self, other, 0))
