Computer system with emulation mechanism

Details Computer system with emulation mechanism Computer system with emulation mechanism

1989-04-28

1992-10-13

Shaw, Gareth D.

Boots, shoes, and leggings

364DIG2, 36492781, 3649272, 3649392, G06F 3153, G06F 500

Patent

active

051558386

ABSTRACT:
A computer system with an emulation mechanism includes a program execution unit for executing an application program. The application program includes a write command. An emulation control unit writes an address and data concerning a write command in buffers in response to the write command. When a predetermined condition is satisfied, the emulation control unit generates and outputs an interrupt to the program execution unit. In response to the interrupt, the program execution unit executes an emulation program and emulates the address and data stored in the buffers upon execution of the emulation program.

REFERENCES:
patent: 4649479 (1987-03-01), Advani et al.
patent: 4835685 (1989-05-01), Kun
patent: 4860246 (1989-08-01), Inoue
patent: 4975829 (1990-12-01), Clarey et al.
Tanenbaum, A., Operating Systems, 1987, pp. 110-123.
IBM Technical Reference, 6936763.
IBM Technical Reference, Options and Adapters vol. 2, 6137806.

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