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-
-
- Documentation for the library OXTRICKS
- **************************************
-
-
- These programs are written for the OSBORNE EXECUTIVE and use some of the
- features peculiar to that machine. Some of them will run on the OSBORNE
- 1 with some modification, like E-SKETCH and TRICKS. Any of them may run
- on other machines but don't count on it!
-
- They are entered into the public domain for educational purposes only.
- Please respect the spirit of this action and refrain from USING THEM FOR
- COMMERCIAL PURPOSES. Please note that TRICKS uses routines copied from
- two other programs in the public domain. If their authors
- are unhappy about my use they may contact me and I will be happy to add
- their names to the programs. That information is not available to me
- at this time. Please accept my apologies for this.
-
- For fixes and discussion please contact VANRYPER c/o MBINEX,
- 617-423-6985.
-
- Best wishes, W. van Riper 17 February 1984
-
- *****************************************************************************
-
-
- FINDCHAR lets you run through the full set of EXECUTIVE characters
- from 0-255 and prints them for your inspection - graphics too
-
- E-SKETCH etch-a-sketch program similar to SCRPAINT in the public
- domain for the OSBORNE 1 except configured for the EXECUTIVE
- - creates a subroutine file that uses the bank-switching
- arrangement of the EXECUTIVE to write directly to video
- memory - very fast, and incorporating improvements over
- SCRPAINT such as the ability to place cursor directly anywhere
- on the screen at any time
-
- WINDOW this program creates a subroutine file that defines a
- window on the screen - something that the EXECUTIVE can
- do but the OSBORNE 1 cant - you specify the rows and columns
- of the upper left corner and the lower right corner of the
- window and the number that you want the window to be called
- for future reference, and the program makes up the subroutine
- which you can then merge into another program - I have had up
- to 9 windows on screen concurrently....
-
- TRICKS is a program that combines and improves upon two others,
- namely OSBCARDS, published in the Portable Companion, and
- BLACKJAK, author unknown - it uses the EXECUTIVE'S bank-
- switching business and windowing capabilities to make an
- interesting graphics-oriented blackjack game - my apologies
- for the code - I am cleaning up someone else's mess and
- may have an improved version in the future - but note:
- the original version worked fine and the author deserves
- my gratitude - it was terribly difficult to see what was
- going on, though!
-
-
-
- VIDEONUM this program just displays some of the key memory locations
- corresponding to locations of the screen in video memory -
- when writing to the EXECUTIVE'S video memory using the bank-
- switching code, one has to be aware that the memory addressed
- which is the map of the screen is different from that of the
- OSBORNE 1 - this is one of the reasons that programs written
- for that machine will often not run on the EXECUTIVE - also
- one has to realize that the screen that you see is a sort of
- upper-left corner of the total video memory, so that when you
- come to the end of a line and go to the next with a carriage
- return, there is a gap in the memory addresses
-
-
- FUNCTION the EXECUTIVE terminal is allegedly patterned after the
- Televideo 950 - according to the Reference Guide, "..and uses
- many of the same screen control characters..."
- well, that's quite true - some work and some don't-
- this program allows you to specify the ASCII codes of the
- control codes so you can see the result - useful for such
- things as figuring out how to kill the cursor and make the
- screen blink in a hideous parody of a meltdown display on a
- reactor contol console.
-
- ************************************************************
-
- Any further information on using the EXECUTIVE would be greatly
- appreciated.
-