USEL   UR, UR, INT_IMM, UP
WRITE UR (1 slots) READ UR (1 slots)

distilled: @UP0 USEL UR0, UR0, 0x0, UP0;

key: USEL_UR_UR_I_UP

0123456701234567012345670123456701234567012345670123456701234567
111000010001predicateoperand 00operand 10operand 2
0123456701234567012345670123456701234567012345670123456701234567
0000000000000000000000operand 3cNOT10000000000000stallyr-barw-barb-maskreuse00
USEL   UR, UR, UR, UP
WRITE UR (1 slots) READ UR (1 slots) READ UR (1 slots)

distilled: @UP0 USEL UR0, UR0, UR0, UP0;

key: USEL_UR_UR_UR_UP

0123456701234567012345670123456701234567012345670123456701234567
111000010100predicateoperand 00operand 10operand 20000000000000000000000000
0123456701234567012345670123456701234567012345670123456701234567
0000000000000000000000operand 3cNOT10000000000000stallyr-barw-barb-maskreuse00