vim, 75 bytes

Result

WA

Code [DL]

00000000  22 61 78 22 62 78 22 63  78 22 64 78 22 65 78 22  |"ax"bx"cx"dx"ex"|
00000010  66 78 22 67 78 22 68 73  12 3d 40 61 2a 31 32 38  |fx"gx"hs.=@a*128|
00000020  2b 40 62 2a 36 34 2b 40  63 2a 33 32 2b 40 64 2a  |+@b*64+@c*32+@d*|
00000030  31 36 2b 40 65 2a 38 2b  40 66 2a 34 2b 40 67 2a  |16+@e*8+@f*4+@g*|
00000040  32 2b 40 68 0d 0a 1b 5a  5a 0d 0a                 |[email protected]..|
0000004b

Disassembly

"ax"bx"cx"dx"ex"fx"gx"hs<C-R>=@a*128+@b*64+@c*32+@d*16+@e*8+@f*4+@g*2+@h<CR><NL><Esc>ZZ<CR><NL>

stdin

00010101
00000001
00011100
11111101
00001011
01011011
01100010
11101010
11111011
00111001
00001010
10011001
01101001
10101001
10000110
11100001
10011100
10111110
01100100
01000010
11100111
01111000
11001011
11010110
00100100
00000011
11010011
01011011
01111101
00100111
01001110
00000110
10101011
11010010
01010100
00100000
00000000
01001011
10001000
00110000
11110000
00110111
11011100
00000100
11110011
00001111
11001101
01000010
00101101
00110101

stdout

21

00000001
00011100
11111101
00001011
01011011
01100010
11101010
11111011
00111001
00001010
10011001
01101001
10101001
10000110
11100001
10011100
10111110
01100100
01000010
11100111
01111000
11001011
11010110
00100100
00000011
11010011
01011011
01111101
00100111
01001110
00000110
10101011
11010010
01010100
00100000
00000000
01001011
10001000
00110000
11110000
00110111
11011100
00000100
11110011
00001111
11001101
01000010
00101101
00110101

stderr

strace