Arithmetic shifter with sign extend facility

Details Arithmetic shifter with sign extend facility Arithmetic shifter with sign extend facility

1988-02-24

1989-12-26

Kemeny, Emanual S.

Boots, shoes, and leggings

G06F 738

Patent

active

048902519

ABSTRACT:
A shifter for shifting a first data word by a bit width which is specified by a second data word. The shifter provides a sign extension so that the shifter can be used for arithmetic shifts. The shifter includes a first inverter for inverting the bits of the first data word only when the most significant bit of the data word is a predetermined datum. The output from the inverter is shifted, using a shifter array, by a bit width specified by the second data word. The output from the shifter array is provided to a second inverter. The second inverter inverts the output from the shifter array only if the most significant bit of the first data word is a predetermined datum.

REFERENCES:
patent: 4396994 (1983-08-01), Kang et al.
patent: 4583197 (1986-04-01), Chappell et al.
C. Mead et al., "Introduction to VLSI systems", Oct. 1980, pp. 157-162.

Affiliated with

Also associated with

Rating

Arithmetic shifter with sign extend facility does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Arithmetic shifter with sign extend facility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arithmetic shifter with sign extend facility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1580701