I am doing some practice problems involving MIPS assembly instructions and machine code(in hex). I am doing a problem but am uncertain if it is correct. This is the problem, and what I did:

addi $8, $9, -150

It is an I-type instruction, so I write it accordingly.

opcode: 001000
rs: 01001
rt: 01000
immediate: 1111111101101010

The answer I came up with is: OX2128FF6A

If anyone can check it and let me know if I have done it incorrectly or if you can offer any help/advice, I'd appreciate it. Thank you.

  • \$\begingroup\$ Your answer looks ok. \$\endgroup\$ – tcrosley May 29 '15 at 23:22

This handy site agrees with you.

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