Month: January 2026

For small, binary integer multiplications, you can use MH or MHI. With MHI, the second operand is stored as an immediate constant inside the instruction. The condition code isn’t set, so you have to be careful not to overflow the limits of the computation. Still, it’s a handy instruction. See some examples, and learn the details here.

I write mysteries when I’m not working with assembler or playing with my dog, Rocco. I recently did an an interview with author Marcia James about my novels, the second of which contains a dog as an important part of the story. You can read about it on her site here. Order a novel (On Amazon) as a way to support the site!