seibert@XN.LL.MIT.EDU (seibert) (02/15/89)
Can anyone out there tell me why NANSI makes my CGA monitor ``snow'' during screen-writes? (ANSI doesn't.) What can I do with NANSI to fix it? Thanks. _MS -- seibert@xn.ll.mit.edu ...!{ames,mit-eddie,seismo,linus,lll-crg}!ll-xn!seibert
bparekh@bonnie.ics.uci.edu (Behram Parekh) (02/17/89)
In article <1256@xn.LL.MIT.EDU> seibert@XN.LL.MIT.EDU (seibert) writes: >Can anyone out there tell me why NANSI makes my CGA >monitor ``snow'' during screen-writes? (ANSI doesn't.) NANSI is designed to do fast screen updates for CGA adapters that can handle it. If your CGA can't handle the non-waiting speed, you get snow.
w8sdz@WSMR-SIMTEL20.ARMY.MIL (Keith Petersen) (02/21/89)
The later versions of NANSI don't have the snow problem. Get this one with FTP from SIMTEL20: Filename Type Bytes CRC Directory PD1:<MSDOS.SCREEN> NANSI24.ARC BINARY 45430 54F0H I use it and am very pleased with it. While you're at it, get FASTBUFF.ARC from directory PD1:<MSDOS.KEYBOARD>. Here's an overview of it: David Steiner FASTBUFF v2.0 November 1987 +------------------------------------------------------+ | Run-time Control Keys | +------------------------------------------------------+ | Ctrl + Right Shift : Clear the keyboard buffer | | [5] + Del key : Turns FASTBUFF off | | [5] + Ins key : Turns FASTBUFF back on | | [5] + Plus key : Selects fast repeat rate | | [5] + Minus key : Selects slow repeat rate | | | --------+------------------------------------------------------+------- Command Line Parameters : Min Max Default ----------------------------------------------------------------------- /Bn : Sets the buffer size to n characters 25 269 100 /Dn : Set start delay to n timer clicks 1 255 5 /Vn : Set video blank delay to n minutes (0=OFF) 1 60 15 /F : Startup repeat speed = fast - - ON /S : Startup repeat speed = slow - - OFF ---------------------------------------------------------------------- FEATURES Variable Size Keyboard Buffer: FASTBUFF takes control of the keystroke interrupt in order to allow you to set the size of buffer you like. The default is 100 characters, but may range from 25 to 269 characters. Increased Key Repeat Rate: By using the timer interrupt we are able to modify how fast keys are repeated. When FASTBUFF is activated you may select between a repeat rate of 18 or 36 characters per second. Unlike most key quickeners that I've seen, FASTBUFF has a fairly smooth repeat rate even in its fast mode. Note that you may also select the normal repeat rate by turning FASTBUFF off. Anti-skid Braking: Given a large buffer and fast repeat rate you could get way ahead of your application when holding a key down. FASTBUFF uses a simple but effective method of preventing this: it doesn't put repeated characters into the buffer until the application program is ready (i.e. the buffer is empty). Screen Blanking: If you leave your computer unattended for over fifteen minutes FASTBUFF will automatically blank the video screen in order to avoid "burning" characters into the display screen. The screen may be restored by pressing any key. Repeat Characters Entered Through the Alt-Keypad: The IBM will allow you to enter characters by holding the ALT key down and typing the ASCII character number on the numeric keypad. When you release the ALT key the character is inserted at the cursor position. FASTBUFF also provides a method of repeating the key entered this way. Enter Graphics Characters With the Alt-Keypad: Some of us poor folks with IBM compatibles have a BIOS that gets confused when entering graphics characters via the keypad (character numbers over 127). FASTBUFF takes control of this function and returns these characters correctly. This fix also pertains to compatibles that do not return the normal scan code (0) for these characters. Disable FASTBUFF: It is possible that you may need to use a program that doesn't seem to like FASTBUFF. To account for this possibility you may turn off the FASTBUFF functions in order to use these programs. After leaving the conflicting application, you may re-enable FASTBUFF again. --- --Keith Petersen Maintainer of the CP/M & MSDOS archives at wsmr-simtel20.army.mil [26.0.0.74] DDN: w8sdz@wsmr-simtel20.army.mil Uucp: {ames,decwrl,harvard,rutgers,ucbvax,uunet}!wsmr-simtel20.army.mil!w8sdz