Boots – shoes – and leggings
Patent
1992-10-23
1995-09-26
Kim, Ken S.
Boots, shoes, and leggings
395800, 39542103, 3642557, 3642614, 3649555, 3649383, 364DIG1, 364DIG2, G06F 942
Patent
active
054540879
ABSTRACT:
An address of a branch instruction, a branch target address thereof, and a type thereof are stored as branch history information in a branch instruction buffer. In addition, a return address for a return from a subroutine is retained in a return buffer. A look-up operation is conducted through the buffer by using the pre-fetch address such that when a hit occurs, a branch target address is output from the buffer depending on a branch instruction type. Consequently, the branch processing is achieved at a high speed. Particularly, the processing speed of an unconditional branch instruction containing a return instruction is increased.
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IBM Technical Disclosure Bulletin, "Subroutine call/return stack," vol. 30, No. 11, pp. 221-225, Apr. 1988.
Aoki Hirokazu
Arakawa Fumio
Narita Susumu
Uchiyama Kunio
Hitachi , Ltd.
Kim Ken S.
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