Registers
The IBM 704 had a 38 bit accumulator, a 36 bit multiplier quotient register, and three 15 bit decrement registers. The decrement registers were a kind of index register whose contents were subtracted from the base address instead of being added to it. All three decrement registers could participate in an instruction: the 3 bit tag field in the instruction was a bit map specifying which of the registers would participate in the operation.
Read more about this topic: IBM 704
Famous quotes containing the word registers:
“We may prepare food for our children, chauffeur them around, take them to the movies, buy them toys and ice cream, but nothing registers as deeply as a simple squeeze, cuddle, or pat on the back. There is no greater reassurance of their lovability and worth than to be affectionately touched and held.”
—Stephanie Martson (20th century)