Interruptible structured microprogrammed sixteen-bit address seq

Details Interruptible structured microprogrammed sixteen-bit address seq Interruptible structured microprogrammed sixteen-bit address seq

1989-02-03

1989-09-19

Eng, David Y.

Boots, shoes, and leggings

3642328, 3642624, 3642628, G06F 922

Patent

active

048687359

ABSTRACT:
A one-chip, integrated-circuit, microprogram sequence controller for use in a microprogrammed system having a data processing unit and a microprogram memory, that controls the order and execution of microinstructions within the microprogram memory. The controller is provided with two 16-bit microinstruction address input busses and a 16-bit output bus on which microinstruction addresses are issued to the microprogram memory. One of the input busses and the output busses are bidirectional providing access to various on-chip parameters such as the contents of the top of an on-chip stack memory or the value of an on-chip stack pointer. An on-chip comparator permits trapping of a microinstruction at a specified address or gathering of run-time statistics. A structured, 64-element instruction set is provided which includes sixteen special-function continue instructions which perform additional operations without imposing added time requirements. A set of multiway instructions are provided affording selection of alternative multiway branch addressees from four 4-bit data inputs to the controller.

REFERENCES:
patent: 3401376 (1965-11-01), Barnes et al.
patent: 3551895 (1970-12-01), Driscoll
patent: 3991404 (1976-11-01), Brioschi et al.
patent: 4003033 (1977-01-01), O'Keefe et al.
patent: 4161778 (1979-07-01), Getson et al.
patent: 4179737 (1979-12-01), Kim
patent: 4435756 (1984-03-01), Potash
patent: 4437149 (1984-03-01), Pomerene et al.
patent: 4439828 (1984-03-01), Martin

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