LOAD.V2 V01 RP AUTOMATION INC. 12JAN89

DESCRIPTION

The programs in the file allow only a portion of a file to be

LOAD'd into memory. The VAL-II LOAD command will not allow

this - it loads the entire file into memory.

PREPARATION

Before loading this program into memory, the VAL-II ZALLOCATE

command must be run to allot for at least 1Kw for the scratch

area needed by these programs. The programs are loaded when

the LOAD.V2 file is loaded into memory.

PROGRAM EXECUTION

This feature requires the use of a COMMANDS program to start

the process. To start the program, type "COMM LOAD". This

will cause the COMMANDS program to initiate the main program

that loads in pieces of files.

IF ZALLOCATE WAS NOT DONE BEFORE LOAD'ING THESE PROGRAMS INTO

MEMORY, THE PROGRAM WILL ABORT ITSELF HERE.

A filename is asked for. If no filename is entered, then the

program will be ABORT'd. This will be the file that the data

will be LOAD'd from.

A menu will then be displayed. This menu will ask whether to

load a .PROGRAM, all .REALS, or all .LOCATIONS. An illegal

response will cause the menu to get re-displayed.

If a .PROGRAM is selected, then another query is made for the

program name. If no program name is entered, this program

will be ABORT'd.

The specified file then gets read until the desired data has

been found. When it is found, it is copied into a temporary

file. After this main program completes, the temporary file

is LOAD'd into memory. This file will only contain the data

that was specified previously. Then, the temporary file gets

deleted from the diskette.

NOTES

There must be enough room on the diskette to hold a temporary

file which contains the specified data.

MESSAGES

*** Need to 'ZALLOCATE 1' before loading into memory ***

This message will get displayed if the program finds that the

ZALLOCATE feature was not used to reserve space.

*** Floppy error nn ***

If a floppy error occurs during the program, then this message

will get displayed, where 'nn' is a number which corresponds to

the internal floppy disk drive error code. The codes are:

2 = File already exists (creating new file with same name)

3 = File does not exist (opening file for reading)

4 = Communications error between VAL & floppy

5 = Disk full (writing to disk)

6 = Communications error between VAL & floppy

7 = Communications error between VAL & floppy

10 = Communications error between VAL & floppy

11 = Communications error between VAL & floppy

12 = Floppy not ready

13 = Floppy read error (diskette may be bad)

14 = Communications error between VAL & floppy

41 = No STX received during block transfer

42 = Incorrect checksum received during block transfer