bswap(12345678) = 78563412
bswap16(1234) = 3412
cntlz(12345678) = 3
fsqrt(3.141590) = 1.772453
read_16_rev = 3412
read_32_rev = efbeadde
after write_16_rev: 9a78
after write_32_rev: 78563412
CSE write_32_rev: ok