MIPS assembly instructions

The MIPS instruction set is very small, so to do more complicated tasks we need to employ assembler macros called pseudoinstructions.

List of Pseudoinstructions[edit]

The following is a list of the standard MIPS instructions that are implemented as pseudoinstructions:

• blt
• bgt
• ble
• neg
• not
• bge
• li
• la
• lw
• move
• sge
• sgt

Branch Pseudoinstructions[edit]

Branch if less than (blt)

The blt instruction compares 2 registers, treating them as signed integers, and takes a branch if one register is less than another.

blt $8, $9, label

translates to

slt $1, $8, $9 bne $1, $0, label

Other Pseudoinstructions[edit]

Load Immediate (li)

The li pseudo instruction loads an immediate value into a register.

li $8, 0x3BF20

lui $8, 0x0003 ori $8, $8, 0xBF20

Move (move)

The move pseudo instruction moves the contents of one register into another register.

move $1, $2