Personal Computer News

16th June 1984
Menu

 
Author: Kenn Garroch
Published in Personal Computer News #065

Program Notes

10 Screen mode 7 for serial attributes
20-30 DIM two arrays to hold the catalogue information
40-50 Set aside a block memory
60 Read catalogue from disk
70 Format the catalogue information
80 Print catalogue on the screen
90 Execute selected file
100 Repeat
110 Start definition of PROCKAT
120 Set up local variables
130 Read disk, track 0, sector 0
140-180 Read filenames into array
190 Read disk, track 0, sector 1
200-220 Read file information into Kat array
240-400 Standard track sector read write routine using OSWORD &7F
410 Define procedure to print catalogue
440-445 List title in double lines
450 Move cursor
460-480 Prints formatted filenames on the screen
490 Print last three files
510 Define a function to select a file
520 Define editing keys as ordinary keys
530 Set up pointers
540 Highlight first filename in read (could change first attribute to flash etc)
550 Gets a key
560 Turn off highlight
570-600 Test for cursor keys and updates H and V accordingly
610 Check for carriage return
630-650 Makes the cursor wrap around
660 Renew highlight
680 Repeat
690 Return keys to editing mode
700 The result of the function is the file number
710-770 Format Kat$ with directory name
780 Get file number
810 If a text file then executes word processor
820 If Basic file then CHAIN it. N.B. If 1982 BASIC then 8023 should be 801F
830-840 Set x and y registers to point to Para
850 POKE filename into Para
860 Execute OSCLI on machine code file
880-1050 Execute word processor. NB. This is set up for Wordwide and will need modification for others

Kenn Garroch

This article was converted to a web page from the following pages of Personal Computer News #065.

Personal Computer News #065 scan of page 47

Page 47

Personal Computer News #065 scan of page 49

Page 49