Boots – shoes – and leggings
Patent
1989-06-30
1992-12-08
Shaw, Gareth D.
Boots, shoes, and leggings
364DIG1, 3642804, 3642755, 3642756, G06F 945
Patent
active
051704650
ABSTRACT:
A computer-aided software development system includes programs to implement edit, compile, link and run sequences, all from memory, at very high speed. The compiler operates on an incremental basis, line-by-line, so if only one line is changed in an edit session, then only that line need be recompiled if no other code is affected. Scanning is done incrementally, generating a sequential token list which is saved in memory to be used again where no changes are made; increments of the sequential token list are reused when no changes have been made in the increments and related statements. All of the linking tables are also saved in memory so there is no need to generate link tables for increments of code where no changes in links are needed. The parser is able to skip lines or blocks of lines of source code which haven't been changed. All of the source code text modules, the sequential token lists, symbol tables, code tables and related data saved from one compile to another are maintained in virtual memory rather than in files so that speed of operation is enhanced. Also, the object code created is maintained in memory rather than in a file, and executed from this memory image, to reduce delays. A virtual memory management arrangement for the system assures that all of the needed data modules and code is present in real memory by page swapping, but with a minimum of page faults, again to enhance operating speed.
REFERENCES:
patent: 4398249 (1983-08-01), Pardo et al.
patent: 4558413 (1985-12-01), Schmidt et al.
patent: 4809170 (1989-02-01), Leblang et al.
patent: 4833606 (1989-05-01), Iwasawa et al.
patent: 4951192 (1990-08-01), Chase, Jr. et al.
Compiler Construction by W. Waite and G. Goos, Springer-Verlag New York Inc., 1984, p. 8, section 1.4.
Aki Shota
McKeeman William M.
Chaki Kakali
Digital Equipment Corporation
Shaw Gareth D.
LandOfFree
Incremental-scanning compiler for source-code development system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Incremental-scanning compiler for source-code development system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incremental-scanning compiler for source-code development system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-965912