def load_value_int32(code, reg, value, clear = False):
# obviously, value should be 32 bit integer
code.add(spu.ilhu(reg, value / pow(2, 16))) # immediate load halfword upper
code.add(spu.iohl(reg, value % pow(2, 16))) # immediate or halfword lower
if clear:
code.add(spu.shlqbyi(reg, reg, 12)) # shift left qw by bytes, clears right bytes
return
def load_value_int32(code, reg, value, clear = False):
# obviously, value should be 32 bit integer
code.add(spu.ilhu(reg, value / pow(2, 16))) # immediate load halfword upper
code.add(spu.iohl(reg, value % pow(2, 16))) # immediate or halfword lower
if clear:
code.add(spu.shlqbyi(reg, reg, 12)) # shift left qw by bytes, clears right bytes
return
def _synthesize_prologue(self):
"""
Add raw_data_size/offest support code.
"""
InstructionStream._synthesize_prologue(self)
# Parallel parameters are passed in the prefered slot and the next
# slot of the user arugment.
self._prologue.add(spu.shlqbyi(self.r_rank, SPURegister(3, None), 4))
self._prologue.add(spu.shlqbyi(self.r_size, SPURegister(3, None), 8))
if self.raw_data_size is not None:
self.acquire_block_registers()
self._prologue.add(spu.shlqbyi(self.r_block_size, SPURegister(4, None), 4))
self._prologue.add(spu.shlqbyi(self.r_offset, SPURegister(4, None), 8))
else:
print 'no raw data'
return
def _synthesize_prologue(self):
"""
Add raw_data_size/offest support code.
"""
Program._synthesize_prologue(self)
# Parallel parameters are passed in the prefered slot and the next
# slot of the user arugment.
#p3 = self.acquire_register(reg_name = 3)
p3 = SPURegister("r3")
self._prologue.append(spu.shlqbyi(self.r_rank, p3, 4))
self._prologue.append(spu.shlqbyi(self.r_size, p3, 8))
if self.raw_data_size is not None:
self.acquire_block_registers()
#p4 = self.acquire_register(reg_name = 4)
p4 = SPURegister("r4")
self._prologue.append(spu.shlqbyi(self.r_block_size, p4, 4))
self._prologue.append(spu.shlqbyi(self.r_offset, p4, 8))
#else:
# print 'no raw data'
return
def _synthesize_prologue(self):
"""
Add raw_data_size/offest support code.
"""
Program._synthesize_prologue(self)
# Parallel parameters are passed in the prefered slot and the next
# slot of the user arugment.
#p3 = self.acquire_register(reg_name = 3)
p3 = SPURegister("r3")
self._prologue.append(spu.shlqbyi(self.r_rank, p3, 4))
self._prologue.append(spu.shlqbyi(self.r_size, p3, 8))
if self.raw_data_size is not None:
self.acquire_block_registers()
#p4 = self.acquire_register(reg_name = 4)
p4 = SPURegister("r4")
self._prologue.append(spu.shlqbyi(self.r_block_size, p4, 4))
self._prologue.append(spu.shlqbyi(self.r_offset, p4, 8))
#else:
# print 'no raw data'
return
def load_word(code, r_target, word, clear=False, zero=True):
"""If r0 is not set to 0, the zero parameter should be set to False"""
if zero and (-512 < word < 511):
code.add(spu.ai(r_target, code.r_zero, word))
elif (word & 0x7FFF) == word:
code.add(spu.il(r_target, word))
elif (word & 0x3FFFF) == word:
code.add(spu.ila(r_target, word))
else:
code.add(spu.ilhu(r_target, (word & 0xFFFF0000) >> 16))
code.add(spu.iohl(r_target, (word & 0xFFFF)))
if clear:
code.add(spu.shlqbyi(r_target, r_target, 12))
return
def load_word(code, r_target, word, clear = False, zero = True):
"""If r0 is not set to 0, the zero parameter should be set to False"""
#if zero and (-512 < word < 511):
# code.add(spu.ai(r_target, code.r_zero, word))
#elif (word & 0x7FFF) == word:
# code.add(spu.il(r_target, word))
if (word & 0x3FFFF) == word:
code.add(spu.ila(r_target, word))
else:
code.add(spu.ilhu(r_target, (word & 0xFFFF0000) >> 16))
if word & 0xFFFF != 0:
code.add(spu.iohl(r_target, (word & 0xFFFF)))
if clear:
code.add(spu.shlqbyi(r_target, r_target, 12))
return
