| MIPS: instructions | |||||||||||
| ALU performs arithmetic and logical operations (instructions) | |||||||||||
| Instruction specifies | |||||||||||
| 1. The operation to perform. | |||||||||||
| 2. The first operand (usually in a register). | |||||||||||
| 3. The second operand (usually in a register). | |||||||||||
| 4. The register that receives the result. | |||||||||||
| MIPS has about 111 different instructions | |||||||||||
| all 32 bits, 3 different formats | |||||||||||