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:
Nov. 09, 1993
Filed:
Feb. 28, 1990
Applicant:
Inventor:
Thomas Fenwick, Redmond, WA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395700 ; 364D / ; 3642614 ; 3642551 ;
Abstract
A method for calling and returning from a computer subroutine is provided. The method allows a subroutine executing on a stack-oriented computer with segmented addressing, such as the Intel 80386, to be invoked by both an inter-segment call and an intra-segment call instruction. The method allows multiple subroutines in one code segment to share an inter-segment return instruction. The method further provides for the locating of that instruction so that the pushing of its offset onto the stack can be accomplished efficiently.