Docmentation file for SKT200.BA, GRF200.CO, and LD2GRF.BA by Robert H.Pigford, (c) 1991, Newark, DE 19711. For the T200, last update: 02/02/91 ---- SKT200.BA and GRF200.CO work together to provide dot-by-dot T200 LCD screen pixel editing, 12 sizes of screen dumps (for Epson 9 pin or compatible printers), saving of screen images to PICTUR.CO filenames assigned by the user, and retrieval/re-editing of any of those PICTUR.CO files from RAM. The PICTUR.CO files created by SKT200/GRF200 have a 0 execution address so they will return you to the T200 main menu if accidently loaded (inadvertantly using the cursor bar on them). The machine language program GRF200.CO will be 4738 bytes long (including a 3840 byte buffer for the PICTUR.CO saving function). The resulting saved PICTUR.CO files are each only 3840 bytes long. The GRF200.CO program is CALLed by SKT200.BA as a way of providing graphics screen prints in any of 12 different Height and Width combinations. The 1 wide X 1 high printout is great for printing a small logo at the top of a page with a letterhead. The 4 wide X 4 high printout will almost fill the paper and is great for scientific graph printouts. GRF200.CO does not reset all the printer settings so, when finished, you will not have to reset your margins, bold, etc. Hitting Shift-Break while printing will return control to the M100 program but your printer may be locked in graphics mode requiring you to turn it off and back on to completely clear it. LOADING: -------- Download LD2GRF.BA in .DO format. In BASIC, type LOAD"LD2GRF". When loaded, type SAVE"LD2GRF". Then with LD2GRF.BA created and stored in RAM, you may type KILL"LD2GRF.DO" to recover some memory space. Run LD2GRF.BA to create the GRF200.CO program. LD2GRF.BA asks you to choose where in memory GRF200.CO will always load and run. If you don't want it up under the current HIMEM, choose a starting address so the required 4738 bytes of memory will not conflict with any other machine language program which you may wish to have active at the same time (like your Disk Operating System). When the loading is complete, you are offered two user determined configuration choices: 1. Want Linefeeds sent to your printer upon printouts ? Some people set their printers to automatically throw in a linefeed every time it sees a carriage return. If so, then chose . If you want the program to supply the needed linefeeds, choose . 2. Set printer linespacing value. Most Epson compatible printers use 24 (actually 24/180 inch). Printers using other values for their graphics vertical line spacing include the Gemini-10X which uses 16. If you don't know about your printer, use the "24" default value and see if the printouts have spaces or overlaps in the print. If you later decide to change these values or wish GRF200 to operate at a different address, you will have to run LD2GRF.BA again. SKT200.BA is designed to find GRF200.CO in RAM and extract the CALL addresses it needs prior to running. PICTUR.CO files made with previous versions of GRF200.CO or even 1920 byte files made on the M100 using SKETCH.BA will be compatible with the T200 version here (1/2 screen only). RUNNING: -------- Download SKT200.BA in .DO format. In BASIC, type LOAD"SKT200". When loaded, type SAVE"SKT200". Then with SKT200.BA created and stored in RAM, you may type KILL"SKT200.DO" to recover some memory space. RUN the SKT200.BA progam. At the first menu, press Enter to continue with LOADMing of GRF200.CO into high memory. The HIMEM value will be set automatically. Note: I have removed the detailled instructions from SKT200.BA to keep it small. In their place, some instructions are added to the end of this DOC file. At the MAIN MENU, choose to create a new picture. The dot will start at the upper left corner. Move the dot around with the keypad directors. The space bar toggles it on and off. When ready to Save or Print the screen contents, hit to bring up the GRAFIX choices on line 16 of the picture. You may then choose: uit returns you to Editing where you left off.

rint will prompt you for your choices of Height multiple, then Width multiple desired. When the Width choice is entered, the printout begins. If it dosen't, check that your printer may be offline. If so, put it online to begin. to make a SAVE. When GRAFIX completes a screen scan, it clears the screen and asks you to <1> choose a filename for saving, <2> return to editing the same sketch, or <3> returning to the Main Menu. Choosing <3> for Main Menu will ERASE your picture so be wure to SAVE your work first! Using the same filename as an existing filename will overwrite the old copy. Make frequent saves and even change filenames if you wish to save different copies of the same picture. To work on an old file or to get it on the screen so you can print it, choose at the SKT200 Main Menu. When asked for a filename, enter the name of your picture file in RAM (don't use the extension). If SKT200.BA can't find it, it will tell you. If found, your picture file will unroll onto the screen and leave you in dot editing mode. TOGGLE the dot on/off with the to help locate it. Instructions: The "keypad" keys form the 8 directional keys to move the dots around. & * ( u o j k l Toggle the dot on/off with the spacebar. Drawing with an "off" dot will erase. Notes and Hints: Use the Ctrl+ARROW keys then the combination as a quick way to draw lines, borders, etc. The Shift+ARROWS moves the dot 16 pixel at a time up/down and 12 pixels left/ right so, if started from an edge, it can be helpful in choosing where to place text (text chrs. are 8 dots high x 6 dots wide). When using the raw function, that the second can be cancelled by hitting Cntrl-D. The ext function is also handy for making selective erasures. Just put the dot near where you wish to erase, hit , then use the spacebar to print spaces over the graphics. Once erased this way, however, the dot graphics are gone. You will have to redraw them if wanted (or Edit your recently saved RAM file again). If you hit and then change your mind, just hit to finish and get back to dot editing without having put any text over the graphics. Using Shft-Grph-x in the ext mode will can quickly fill the screen with full characters of all dots. Have fun!