; Hacker's Delight, page 17, absolute value computations (abs) 
1 var 32 x
2 zero 32
3 const 5 11111
4 slt 1 1 2
5 neg 32 1
6 cond 32 4 5 1
7 sra 32 1 3

8 xor 32 1 7
9 sub 32 8 7
10 eq 1 6 9

11 add 32 1 7
12 xor 32 11 7 
13 eq 1 6 12

14 add 32 1 1
15 and 32 14 7
16 sub 32 1 15
17 eq 1 6 16

18 or 1 -10 -13
19 or 1 18 -17
20 root 1 19