def machine_mem_rw_test():
mem = MockMemory()
mem.w8(0x100, 42)
assert mem.r8(0x100) == 42
mem.w16(0x200, 0xDEAD)
assert mem.r16(0x200) == 0xDEAD
mem.w32(0x300, 0xCAFEBABE)
assert mem.r32(0x300) == 0xCAFEBABE
mem.write(0, 0x101, 43)
assert mem.read(0, 0x101) == 43
mem.write(1, 0x202, 0x1234)
assert mem.read(1, 0x202) == 0x1234
mem.write(2, 0x304, 0x11223344)
assert mem.read(2, 0x304) == 0x11223344
# invalid values
with pytest.raises(ValueError):
mem.w8(0x100, 0x100)
with pytest.raises(ValueError):
mem.w8(0x100, -1)
# invalid values
with pytest.raises(struct.error):
mem.w16(0x100, 0x10000)
with pytest.raises(struct.error):
mem.w16(0x100, -2)
# invalid values
with pytest.raises(struct.error):
mem.w32(0x100, 0x100000000)
with pytest.raises(struct.error):
mem.w32(0x100, -3)
# invalid type
with pytest.raises(TypeError):
mem.w8(0x100, "hello")
# invalid type
with pytest.raises(struct.error):
mem.w16(0x100, "hello")
# invalid type
with pytest.raises(struct.error):
mem.w32(0x100, "hello")
# invalid width
with pytest.raises(ValueError):
mem.write(7, 0x202, 12)
with pytest.raises(ValueError):
mem.read(7, 0x202)
def mem_cache_rwx_read_test():
mem = MockMemory()
# build main mem contents
mem.w8(0x100, 42)
assert mem.r8(0x100) == 42
mem.w16(0x200, 0xdead)
assert mem.r16(0x200) == 0xdead
mem.w32(0x300, 0xcafebabe)
assert mem.r32(0x300) == 0xcafebabe
mem.write(0, 0x101, 43)
assert mem.read(0, 0x101) == 43
mem.write(1, 0x202, 0x1234)
assert mem.read(1, 0x202) == 0x1234
mem.write(2, 0x304, 0x11223344)
assert mem.read(2, 0x304) == 0x11223344
# write to cache
cmem = MemoryCache(0x100, 0x210)
cmem.read_cache(mem)
# check cache mem
assert cmem.r8(0x100) == 42
assert cmem.r16(0x200) == 0xdead
assert cmem.r32(0x300) == 0xcafebabe
assert cmem.read(0, 0x101) == 43
assert cmem.read(1, 0x202) == 0x1234
assert cmem.read(2, 0x304) == 0x11223344
def mem_cache_rwx_read_test(): mem = MockMemory() # build main mem contents mem.w8(0x100, 42) assert mem.r8(0x100) == 42 mem.w16(0x200, 0xdead) assert mem.r16(0x200) == 0xdead mem.w32(0x300, 0xcafebabe) assert mem.r32(0x300) == 0xcafebabe mem.write(0, 0x101, 43) assert mem.read(0, 0x101) == 43 mem.write(1, 0x202, 0x1234) assert mem.read(1, 0x202) == 0x1234 mem.write(2, 0x304, 0x11223344) assert mem.read(2, 0x304) == 0x11223344 # write to cache cmem = MemoryCache(0x100, 0x210) cmem.read_cache(mem) # check cache mem assert cmem.r8(0x100) == 42 assert cmem.r16(0x200) == 0xdead assert cmem.r32(0x300) == 0xcafebabe assert cmem.read(0, 0x101) == 43 assert cmem.read(1, 0x202) == 0x1234 assert cmem.read(2, 0x304) == 0x11223344
def machine_mem_rw_test():
mem = MockMemory()
mem.w8(0x100, 42)
assert mem.r8(0x100) == 42
mem.w16(0x200, 0xdead)
assert mem.r16(0x200) == 0xdead
mem.w32(0x300, 0xcafebabe)
assert mem.r32(0x300) == 0xcafebabe
mem.write(0, 0x101, 43)
assert mem.read(0, 0x101) == 43
mem.write(1, 0x202, 0x1234)
assert mem.read(1, 0x202) == 0x1234
mem.write(2, 0x304, 0x11223344)
assert mem.read(2, 0x304) == 0x11223344
# invalid values
with pytest.raises(ValueError):
mem.w8(0x100, 0x100)
with pytest.raises(ValueError):
mem.w8(0x100, -1)
# invalid values
with pytest.raises(struct.error):
mem.w16(0x100, 0x10000)
with pytest.raises(struct.error):
mem.w16(0x100, -2)
# invalid values
with pytest.raises(struct.error):
mem.w32(0x100, 0x100000000)
with pytest.raises(struct.error):
mem.w32(0x100, -3)
# invalid type
with pytest.raises(ValueError):
mem.w8(0x100, 'hello')
# invalid type
with pytest.raises(struct.error):
mem.w16(0x100, 'hello')
# invalid type
with pytest.raises(struct.error):
mem.w32(0x100, 'hello')
# invalid width
with pytest.raises(ValueError):
mem.write(7, 0x202, 12)
with pytest.raises(ValueError):
mem.read(7, 0x202)
