G - Physics – 06 – F
Patent
G - Physics
06
F
354/230.71
G06F 9/22 (2006.01) G06F 7/48 (2006.01) G06F 7/57 (2006.01) G06F 9/26 (2006.01) G06F 9/302 (2006.01)
Patent
CA 1145054
Abstract of the Disclosure In a microprogrammed data processing system the throughput of the sys- tem is increased during the processing of decimal numeric instructions by appara- tus which is conditioned by the instruction descriptors in advance of receiving the operands to align the decimal digits of the operand words as the words are received by the apparatus from memory. The descriptor information for each oper- and includes the scale factor, the position of the sign, the position of the most significant character within the word, whether it is a floating point or scaled operand, the number of bits in each decimal character, either 4 or 9 bits and the length of the operand. The apparatus is conditioned by the descriptor informa- tion to align the two operands for processing. The apparatus indicates to the microprogram the characteristics of the operand being processed thereby enabling the proper microprogram subroutine, that is, if the operand is a floating point or a scaled number, has 4-bit decimal digits or 9-bit decimal digits, has an over- punched leading sign or trailing sign, has an adjusted length less than or equal to 63 decimal digits, whether the operand is a long or short operand, and whether the resulting operand is equal to zero or has an overflow. The apparatus receives a long operand, greater than a predetermined number of words, which is the result of the calculation, assembles the resultant operand in accordance with an instruc- tion descriptor, and transfers the resultant operand to memory. In response to a microword indicating that the result of the decimal numeric calculation is a short operand, that is, a predetermined number of words or less, and in accord- ance with an instruction descriptor, the apparatus generates a count of the number of words of the resultant operand, the decimal unit will transfer to memory.
341353
Flynn Richard T.
Kindell Jerry L.
Honeywell Information Systems Inc.
Smart & Biggar
LandOfFree
Data processing system with means to align operands does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data processing system with means to align operands, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data processing system with means to align operands will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-641612