- Understanding the x86’s Decimal Adjust after Addition (DAA) instruction (righto.com)
I’ve been looking at the DAA machine instruction on x86 processors, a special instruction for binary-coded decimal arithmetic. Intel’s manuals document each instruction in detail, but the DAA description doesn’t make much sense. I ran an extensive assembly-language test of DAA on a real machine to determine exactly how the instruction behaves. In this blog post, I explain how the instruction works, in case anyone wants a better understanding.
- Palo Alto, California (Wikipedia)
Palo Alto (/ˌpæloʊ ˈæltoʊ/; Spanish for ’tall stick’) is a charter city in the northwestern corner of Santa Clara County, California, United States, in the San Francisco Bay Area, named after a coastal redwood tree known as El Palo Alto.
