Apparatus for activation and deactivation of instruction tracing

Details Apparatus for activation and deactivation of instruction tracing Apparatus for activation and deactivation of instruction tracing

1992-11-24

1994-10-25

Harrell, Robert B.

Excavating

371 19, 364DIG1, 364267, 3642676, G06F 1130, G06F 1134

Patent

active

053596080

ABSTRACT:
A conditional trace system in a computer system for controlling the enablement of a trace operation in the computer system, the computer system including a set of instructions for operating said computer, the set of instructions including branch instructions, the branch instruction generating a jump signal whenever the branch instruction performs a branch operation, the conditional trace system comprising a conditional trace field in each branch instruction where the conditional trace field has either a first or second value and a first means responsive to the value of said conditional trace field and the jump signal for selectively enabling and disenabling the trace operation within the computer system.

REFERENCES:
patent: 3673573 (1972-06-01), Smith
patent: 4423508 (1983-12-01), Shiozaki et al.
patent: 4429368 (1984-01-01), Kurii
patent: 4453093 (1984-06-01), Boudreau
patent: 4598364 (1986-07-01), Gum et al.
patent: 5058114 (1991-10-01), Kuboki et al.

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