byte_swap.byte_swap_64_bit() - Code Metrics - myems/myems-modbus-tcp - Measure and Improve Code Quality continuously with Scrutinizer

↳ Parent: byte_swap

Conditions

Total Lines	18
Code Lines	15

Lines	0
Ratio	0 %

Changes

1			import struct
2			########################################################################################################################
3			# Swap adjacent bytes
4			# This is not big-endian and little-endian swapping.
5			########################################################################################################################
6
7
8			# swap adjacent bytes of 32bits (4bytes) data,
9			# abcd => badc
10			def byte_swap_32_bit(x):
11			x_type = type(x)
12			if x_type is float:
13			x = struct.unpack('>I', struct.pack('>f', x))[0]
14
15			a = ((x >> 8) & 0x00FF0000)
16			b = ((x << 8) & 0xFF000000)
17			c = ((x >> 8) & 0x000000FF)
18			d = ((x << 8) & 0x0000FF00)
19
20			if x_type is float:
21			return struct.unpack('>f', struct.pack('>I', b \| a \| d \| c))[0]
22			else:
23			return b \| a \| d \| c
24
25
26			# swap adjacent bytes of 64bits (8bytes) data,
27			# abcdefgh => badcfehg
28			def byte_swap_64_bit(x):
29			x_type = type(x)
30			if x_type is float:
31			x = struct.unpack('>Q', struct.pack('>d', x))[0]
32
33			a = ((x >> 8) & 0x00FF000000000000)
34			b = ((x << 8) & 0xFF00000000000000)
35			c = ((x >> 8) & 0x000000FF00000000)
36			d = ((x << 8) & 0x0000FF0000000000)
37			e = ((x >> 8) & 0x0000000000FF0000)
38			f = ((x << 8) & 0x00000000FF000000)
39			g = ((x >> 8) & 0x00000000000000FF)
40			h = ((x << 8) & 0x000000000000FF00)
41
42			if x_type is float:
43			return struct.unpack('>d', struct.pack('>Q', b \| a \| d \| c \| f \| e \| h \| g))[0]
44			else:
45			return b \| a \| d \| c \| f \| e \| h \| g
46

myems / myems-modbus-tcp