; Get a hard copy on Amazon for $10.

[0x3a]
dec [xchg rax,rax] inc 
mov      rdx,rax
neg      rdx
and      rax,rdx

mov      rdx,0x218a392cd3d5dbf
mul      rdx
shr      rax,0x3a

xlatb
; xorpd(&)xorpd.net