Encode request:
VPINSRB EOSZ:3, IMM0:0xff, IMM_WIDTH:8, MODE:2, REG0:XMM1, REG1:XMM2, REG2:EAX, SMODE:2
OPERAND ORDER: REG0 REG1 REG2 IMM0 

Encodable! C4E36920C8FF