The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1999
Filed:
Dec. 15, 1995
Kiran A Padwekar, Santa Clara, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A microprocessor or microcontroller architecture which utilizes a 64 byte-register file in a unique manner. The lowest 16 bytes of the register file can be accessed as 16 8-bit registers (R0-R15), the lowest 32 bytes can also be accessed as 16 32-bit (word) registers (WR0-WR30), and the entire register file can be accessed as 16 64-bit (double word or Dword) registers (DR0-DR60). In this manner, various combinations of 8/16/32-bit registers are provided without wasting the register file. While providing at least 16 8/16/32-bit registers, only four bits are necessary to encode a register, thereby allowing two byte register-to-register instructions. The register file and an instruction sequencer operate to provide the 64 byte-register file which can be accessed so that the lowest 16 bytes of the register file are accessed as 16 8-bit registers (R0-R15), the lowest 32 are accessed as 16 word registers (WR0-WR30), and the entire register file is accessed as 16 double word registers (DR0-DR60).