MIPS pseudo instructions

MIPS assembler recognizes, but not real instructions

Name	Assemly Syntax	Expantion
Load immediate	`li reg, value`	`lui reg, upper_hi` `ori reg, reg, valure_lo`</br>
move	`move $t, $s`	`add $t, $zero, $s`

li $t, 0x1234abcd
->
lui $t, 0x1234
ori $t, 0xabcd

move $t, $s
->
add $t, $0, $s