MIPS

Microprocessor without Interlocked Pipeline Stages

Registers

number	name	description
0	zero	always zero
1	at	temporary
2-3	v0-v1	return value from a function call
4-7	a0-a3	first four parameters of a function call
8-15	t0-t7	temporary variables need not to be preserved
16-23	s0-s7	function variables, must be preserved
24-25	t8-t9	two more temporary variables
26-27	k0-k1	kernel use registers
28	gp	global pointer
29	st	stack pointer
30	fp	frame pointer
31	ra	return address register

Instruction set

Instruction	short name	description
slti r, s, imm	Set on less than immediate (signed)	If s is less than immediate, t is set to one. It gets zero otherwise.

Links

• MIPS alternative registers name
• Cheat sheet
• MIPS Basic Training Course
• MIPS32® Instruction Set Quick Reference
• MIPS: non-virtualizable architecture (Part 1)
• Exceptions in MIPS
• MIPS binary repo
• The MIPS R4000
• Introduction
• 32-bit integer calculations
• MIPS architecture overview