System having status update controller for determining which one

Details System having status update controller for determining which one System having status update controller for determining which one

1990-11-28

1994-05-17

Lall, Parshotam S.

Boots, shoes, and leggings

395375, 364DIG1, 3642473, 3642641, G06F 906

Patent

active

053136446

ABSTRACT:
A data processing system which is provided with a plurality of operation units and a function which executes a plurality of instructions in parallel by each of these plurality of operation units, respectively, wherein operation results executed by these plurality of operation units are reflected on flags which are included in a processor status word (PSW), thereby, those plurality of instructions are executed in parallel in the respective different operation units, and at that time, results of operation processing of the respective instructions are reflected on the flags included in the PSW, then, the flags can be updated by simple control, and the operation results executed by those plurality of operation units are reflected on the flags included in the PSW according to the order of execution of the instructions, thereby, those plurality of instructions are executed in parallel by the respective different operation units, and at that time, the results of operation processing of the respective instructions are reflected on the flags included in the PSW according to the order of execution of the instructions, whereby enabling to realize the high speed operation without providing such complicated processing as temporarily saving information for reflecting the results of operation processing on the flags until processing of the preceding instructions is finished.

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