[From Portable 100 magazine, Sep. '88, p. 21. Modified and uploaded by author for use of CompuServe members. Please request permission to upload to other services




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[From Portable 100 magazine, Sep. '88, p. 21. Modified and uploaded by author for use of CompuServe members. Please request permission to upload to other services.] HOTKEY: Escape Artist Burn up your keyboard with simple, two-key commands. by Mike Nugent HOTKEY is a little utility that performs some special magic with simple, two-key commands. Whether you're in BASIC, TEXT, ADDRSS, SCHEDL, or Detroit, this mini-Houdini can: * Display the current day, date, and time * Automatically type the day, date, or time * Send a form feed to your printer * Offer a choice of five-space or eight-space tabs * Turn itself off It can be customized, uses only 379 bytes of RAM, and as a bonus, even fixes the Model 100 "date bug." Sound good? Then on with the show! First, the program must not be modified, except that remark lines need contain only the line number and the apostrophe (or REM). Save the program to RAM as HOTKEY.BA (it expects that name!). And save it to tape or disk as well, as a backup for later use. CAUTION: Because HOTKEY uses machine language, mistakes here can vaporize your files. Before proceeding, backup anything important! 'Nuff said. INSTALLING HOTKEY To install HOTKEY, first kill all other .BA programs except PG Design's MENU.BA, Micro Demon's SUPERA, and Tri- Mike's DVORAK, if you use any of those. Note that some BASIC programs don't show a .BA extension (for example, Traveling Software's UR-2, RANDOM, TWORD+). When in doubt about a file, kill it. Now run HOTKEY.BA. It installs in less than a minute, shrinking itself to 379 bytes, then returns to the main menu, ready to use. If you get a Load Error message, see the LOAD ERROR section below. Never edit the installed HOTKEY.BA! You can list it (it will look weird), but don't edit it! USING HOTKEY To turn HOTKEY on, just run it. The menu quickly returns, and HOTKEY.BA disappears. Why? So you can't kill it. Killing it while it's active can cause a cold start. It will reappear when you turn it off. HOTKEY commands work anywhere except TELCOM's Term mode and the main menu. To execute a command, press ESC followed by the appropriate key: Hotkey Meaning ESC-V (View) Display day/date/time on top line until any key is pressed ESC-D (Date) Type current date in MM/DD/YY format ESC-T (Time) Type current time in HH:MM:SS format ESC-W (Week) Type day of the week, e.g., "Mon" ESC-F (Form) Send form feed to printer ESC-O (Off) Turn HOTKEY off ESC-TAB (Tab) Five-space tab The Date, Time, and Week commands actually type the information as though it came from the keyboard. The View command only displays it on your screen. The Form command sends a form feed, CHR$(12), to the printer or beeps if the printer isn't ready. This is handy for printing multiple files to a buffered printer. Pressing ESC-F after each print command ensures that your files are separated by form feeds; no need to wait until one report has printed before printing the next one. Whereas the normal TAB types a tab character, CHR$(9), ESC-TAB types the necessary number of spaces to produce a five-space tab. The Off command turns HOTKEY off, beeps to acknowledge the command, and makes HOTKEY.BA visible again on the main menu. EXTRAS Have you met the notorious Model 100 date bug, the one where, for no apparent reason, it's suddenly next year? HOTKEY ends this game of musical years and keeps you solidly planted in 1988 (or whatever year you're actually living in). Each year, you can change the last data item in line 580 to match the current year. You can customize some features of HOTKEY. If you prefer date and time in the shorter MM/DD and HH:MM format, change the 9 in line 840 to a 6. To change the printer character the Form command sends, replace the 12 in line 880 with another value. A value of 15, for example, puts some printers into condensed mode. Though I don't advise it, changing "238, 8" in line 600 to "127, 127" leaves HOTKEY visible when active. It will appear on the menu as +OTKEY.BA, the + being an extra safeguard against its accidental demise. But many DOS's and utilities can easily zap it and blow your machine off into the weeds. LOAD ERROR Packing machine code into a .BA program (as HOTKEY does) can be a complex affair, because you can't predict where the program will reside in memory. Since the values of certain bytes depend on the program's location, sometimes a byte contains a value BASIC misinterprets. The Load Error message warns you of such a byte. You must move the code higher in memory, a byte at a time, until all the bytes are acceptable to BASIC. Here's how: 1. Type NEW and press ENTER. Type KILL "HOTKEY.BA" and press ENTER. 2. Load a fresh copy of HOTKEY.BA from disk or cassette, and save it to RAM as HOTKEY.BA. 3. Edit line 10. Insert an X right after the REM, making it REMX. 4. Edit line 110. Change the +5 to +6 5. Edit line 2000. Change the +5 to +6. 6. You've moved the program up one byte in memory. Try running it again. If it still fails, repeat steps 1-6, inserting another X (for example, REMXX) and adding 1 more to the numbers in lines 110 and 2000. Keep repeating these steps until it works. One or two X's usually does the trick. If you've added 5 or 6 X's, I suggest you carefully double check your program listing for errors. COMPATIBILITY Compatibility with other programs depends on how they handle a system vector that HOTKEY uses: 1) TS-DOS likes it just fine. 2) There's no conflict with MENU.BA. 3) It's completely compatible with DVORAK (of course!). 4) SUPERA turns HOTKEY off, and vice versa, so use them one at a time. 5) Ultimate ROM II (v1.22) cooperates with a few exceptions: a) UR-2 programs exit to the main menu rather than to UR-2's menu. b) After using HOTKEY's View command with UR-2's VIEW80 activated, the screen clears completely. Scrolling up or down restores the missing lines. c) CTRL-J, CTRL-O, and CTRL-L functions of UR-2's TEXT are disabled with HOTKEY active. To reenable them, turn HOTKEY off via its ESC-O command. d) After exiting a text file from UR-2, the main menu shows TEXT as TEXT. (with an added period). e) These problems appear to be harmless so far, but be cautious. With any new software, make frequent backups until you know what works with what. 6) Ultimate ROM II (v2.07 and v2.12) are incompatible. FUTURE POSSIBILITIES I meant HOTKEY to be a small, simple utility. But with all those other keys on the keyboard just begging to become part of HOTKEY's repertoire, I wasn't sure when to stop adding commands. I can easily imagine HOTKEY growing larger and more powerful in the future. If you'd care to share your ideas and comments, please contact me care of Portable 100 magazine or directly via CompuServe ID 71426,1201. Or just drop by Tri-Mike East--and bring a pizza! ATTENTION TANDY PORTABLE DISK DRIVE USERS! Tandy's FLOPPY is fatal to any .BA program containing machine language, including SUPERA, MENU, DVORAK, and now HOTKEY. Fortunately, you can patch FLOPPY to prevent it from moving .BA programs around in memory. I've published the patches in Portable 100 magazine. Model 100/102 users with the PDD-1 (original 100K drive) should refer to the Sep. '88 P100, p. 22; Tandy 200 users with the PDD-1 should refer to the Nov. '88 P100, p. 15. Although those articles also show PDD-2 (200K drive) patches, those were further improved and appear in the March '89 P100, p. 6. All PDD-2 users should refer to that article.


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