System for measuring program execution by replacing an executabl

Details System for measuring program execution by replacing an executabl System for measuring program execution by replacing an executabl

1987-07-10

1990-03-20

Williams, Jr., Archie E.

Boots, shoes, and leggings

364221, 3642217, 3642613, 3642624, 3642462, 364244, 3642446, G06F 900, G06F 924, G06F 926

Patent

active

049106635

ABSTRACT:
A computer program measures the execution of machine code instructions in an executing program. A copy of the measured program is made and selected machine instructions are replaced by interrupt-causing breakpoint instructions. As each breakpoint instruction is executed, the breakpoint is replaced by the actual instruction, and a bit map is updated to indicate execution of the measured instruction. Execution resumes with the actual instruction.

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