Emulation method

Details Emulation method Emulation method

1984-07-11

1989-03-14

Shaw, Gareth D.

Boots, shoes, and leggings

364200, G06F 944

Patent

active

048129755

ABSTRACT:
A method for emulating programs in a system includes a plurality of first and second data processors having different instruction word sets. An instruction which interrupts the operating system on the first data processor is defined. When the instruction is detected in a program running on the first data processor, it is determined whether or not the instruction is an instruction associated with an input/output macro instruction. If it is found, as a result of the determination, that this is the case, an interrupt is caused in a program running on the second data processor which controls the emulation, and the input/output macro instruction output from an emulated program is translated into an input/output macro instuction for the operating system, thereby implementing an emulation with a minimized overhead.

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