MIPS instructions to set a register to 1 -

this question has appeared in few past papers cannot find on internet.

what 6 single instruction mips can set $v1 hold decimal value of 1?

against common misconception, li, la or move not single instruction, pseudo instructions, taking multiple machine instructions execute. because of guess don't come option.

here instructions can such thing

addi $v1, $zero, 1 addui $v1, $zero, 1 ori $v1, $zero, 1 xori $v1, $zero, 1  # these use comparison slt $v1, $zero, $31  # last 1 can non-empty register slti $v1, $zero, 1 sltu $v1, $zero, $31  # last 1 can non-empty register sltiu $v1, $zero, 1  # these use memory lb $v1, one($zero) lbu $v1, one($zero) lh $v1, one($zero) lhu $v1, one($zero) lw $v1, one($zero)  one: .word 1 

when counting pseudo instructions, li , la come available too.