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Topic: control file
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program control
Topic:
co-routines
Topic:
control point
Topic:
foreach and for all statements
Topic:
for loop
Topic:
message queues for communication
Topic:
sequence generators
Summary
A control file is a co-routine which returns a succession of control values. It acts through a control point to direct the execution of a program. I first used the concept in an interactive network simulation program. By placing the user interface at one location, multiple control files could be simultaneously active. The applicability of a control value did not depend on previous control requests. This independence greatly increased the flexibility of the user interface. The user could interrupt one or more active control files, gather statistics and continue execution. No complex state save and restore was needed. Note that the user is also seen as a control file. A similar facility in existing systems is command files taken from the keyboard or a disk. (cbb 5/80)
QuoteRef: cbb_1973 ;;10/27/73 a program is a control vector decoded by the compiler QuoteRef: cbb_1973 ;;10/28/73 control vector is a file with deliminators (of different meaning QuoteRef: cbb_1973 ;;11/4/73 want more than one concurrent control vector QuoteRef: cbb_1973 ;;11/4/73 multiples (W-) in control vectors are other files-control vectors QuoteRef: cbb_1973 ;;1/1/74 information queuing is a type of control vector QuoteRef: cbb_1973 ;;2/3/74 control vector is like a co-routine; control vector is like a pseudo-random; i.e. each time it is entered it gives a new value QuoteRef: cbb_1973 ;;2/16/74 starting from beginning is branch and dealing with a map while continuing is treating as a file QuoteRef: cbb_1973 ;;4/2/74 control vector important cause always retains control QuoteRef: cbb_1973 ;;4/2/74 relay program had four files: independent, control vector, repetitions file QuoteRef: cbb_1973 ;;8/18/74 generator is a ring that retains control
Group: program control (27 topics, 547 quotes) Topic: co-routines (13 items)
Topic: control point (3 items)
Topic: foreach and for all statements (16 items)
Topic: for loop (18 items)
Topic: message queues for communication (36 items)
Topic: sequence generators
(16 items)