Overflow detector for anticipating producing invalid operands re

Details Overflow detector for anticipating producing invalid operands re Overflow detector for anticipating producing invalid operands re

1990-04-19

1993-07-27

Mai, Tan V.

Boots, shoes, and leggings

G06F 738

Patent

active

052316009

ABSTRACT:
Overflow detector connects in parallel with a shifter to receive the bits of an operand to be shifted for detecting an overflow condition by defining the location of the operand sign bit and detecting a predetermined change in operand bit position value. The detector generates a binary value indicating the bit position where the change occurred. This value is then compared with a value designating the number of shifts to be performed on the operand by the shifter. When the number of shifts is greater or equal to the binary value denoting the bit position, the detector signals the presence of an overflow condition.

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