Apparatus and method for recording a floating point error pointe

Details Apparatus and method for recording a floating point error pointe Apparatus and method for recording a floating point error pointe

1998-02-05

2000-01-11

Treat, William M.

Electrical computers and digital processing systems: processing

Processing control

Branching

712222, G06F 9302

Patent

active

060147431

ABSTRACT:
An apparatus and method for recording a floating point macro instruction error pointer within a microprocessor is provided. The apparatus includes translation/control logic for generating a micro instruction sequence to perform a floating point operation. The micro instruction sequence includes a first micro instruction, inserted in the sequence in place of a translate slip, which directs the microprocessor to store a first part of the floating point macro instruction error pointer associated with a floating point macro instruction. The micro instruction sequence also includes a micro instruction extension, associated with a floating point micro instruction within the sequence. The extension directs the microprocessor to store a second part of the floating point macro instruction error pointer. The error pointer is stored in zero effective time increments without requiring additional hardware.

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