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import unittest
from peachpy import *
from peachpy.arm import *
class TestARM(unittest.TestCase):
def runTest(self):
# Implement function void add_1(const uint32_t *src, uint32_t *dst, size_t length)
source_arg = Argument(ptr(const_uint32_t))
destination_arg = Argument(ptr(uint32_t))
length_arg = Argument(size_t)
# This optimized kernel will target Intel Nehalem processors. Any instructions which are not
# supported on Intel Nehalem (e.g. AVX instructions) will generate an error. If you don't have
# a particular target in mind, use "Unknown"
with Function("add_1", (source_arg, destination_arg, length_arg), abi=ABI.GnuEABIHF, report_generation=False) as add_function:
# Load arguments into registers
(source, destination, length) = LOAD.ARGUMENTS()
# Main processing loop. Length must be a multiple of 4.
with Loop() as loop:
x = GeneralPurposeRegister()
LDR(x, [source], 4)
# Add 1 to x
ADD(x, x, 1)
STR(x, [destination], 4)
SUBS(length, 4)
BNE(loop.begin)
RETURN()
print add_function.assembly
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