Decimal V Binary??

From: Stan Barr <>
Date: Sun Oct 10 03:09:09 2004


Tom Jennings <> said:

> The lowly 8080 had DAA, Decimal Adjust for Addition. If I recall,
> it handled "carry" from bit5 (and Cy?) after adding a BCD pair
> in A.

The even lowlier SC/MP had DAD (Decimal Add), DAI (Decimal Add Immediate)
and DAE (Decimal Add Extension) instructions. They all add 2-digit
(8-bit) decimal numbers.

Stan Barr
The future was never like this!
Received on Sun Oct 10 2004 - 03:09:09 BST

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