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README.1ST
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1991-05-12
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┌──────────────────────────────────────────┐
│████████████ VGACAD v2.50 ██████████████│
└──────────────────────────────────────────┘
Copyright (c) 1987-91 Lawrence Gozum & Marvin Gozum, MD.
==========================================================================
NOTE: The following programs are designed to integrate DIRECTLY with
VGACAD. These programs can immediately be found at CompuServe's
PICS and IBMAPP forums. It may take longer for these versions
to reach other online services (eg., BIX), your favorite BBSs or
Shareware distributors.
MVGAVU v4.4
SQZGIF v3.0
GIFPUB v4.1
GIFHEX v1.1
The following utilities indirectly interact with the VGACAD.
These programs can also be found at the PICS and/or IBMAPP
forums of CompuServe, other online services, local BBSs and
Shareware distributors.
GIFBIT v1.0
MAC2GIF v3.0
VGA2CGA v2.1
REGISTERED USERS ARE PROVIDED THE "LATEST OF EVERYTHING". IN YOUR
REGISTERED PACKAGE, ALL ABOVEMENTIONED PROGRAMS OR LATER VERSIONS
CAN BE FOUND ON YOUR DISK(s) OR IN VCADUTLS.ZIP !
==========================================================================
VGACAD SYSTEM v2.5 UPDATE
***************************
VGACAD (Main)
Update v2.5 * Ahead-B SVGA support added.
* BUGFIX: Color matching algorithm performed erratically
with similar palettes; restored original algorithm at
VDISK, IMGPRO and MAIN program modules.
* BUGFIX: SVGA Tseng 4000 bank switching routines did not
reset extensions resulting in unpredictable effects on
some Tseng 4000 cards (weird!); anyway, corrected.
* BUGFIX: Somehow ALL the Everex VRAM video setting
routines were totally deleted (!?!); corrected.
* BUGFIX: SVGA C&T 451,452,453,455,456 routines were
flawed; corrected.
* BUGFIX: Some Everex 678 with Trident modes, and Everex
VRAM with Tseng 4000 modes got mixed up; corrected.
* BUGFIX: When selecting SVGA sections for cutting/copying,
the last line on the bottom and all pixels to the right of
the rectangle were not XORed which created the illusion
of not saving those pixel when they actually were anyway;
corrected.
VGACAP v7.5-7.3 * BUGFIX: Trident SVGA bank routines were still flawed
(we tried to accomodate the rare BR version of the
TVGA chip), resulting in erroneous bank switching;
corrected by restoring the standard 64KB TVGA 8800/8900
banking code. <damn those BRs!>
* Added a new 'Trident' SVGA bank switching mode labelled
'Zymos'; this is essentially similar to Trident 8800/8900
chipset BUT with similar WRITE/READ bank switching
routines.
* BUGFIX: Video7 1024x768x16 grabs required a different
bank switching routine; added 16-color bank switching code.
* BUGFIX: C&T 452/453 1024x768x16 grabs required a different
bank switching routine; added 16-color bank switching code.
* Added FAST SVGA 1024x768x256 capture funtionality.
* Added FAST SVGA 1024x768x16 capture funtionality.
* Added FAST SVGA 800x600x16 capture funtionality.
* BUGFIX: SVGA C&T 452 and 453 bank routines were flawed;
corrected.
* BUGFIX: When VGACAP is loaded and one or more files are
saved, subsequent reloading of VGACAP would be accepted
(ie., two or more VGACAP resident files would be
permitted); corrected.
* Added Ahead-B chipset support (VGA Wizard).
VGAFIL v2.5-2.3 * MAJOR BUGFIX: Some combinations of DOS and environment
variables resulted in "0" lenght PCX, BMP and TGA files
(something to do with too many or conflicting DOS file
handles); corrected!
* FASTER PCX encoding.
* Avoids sign-on screen if REGISTER.OVL is detected and
verified; saves you a keystroke.
* Customization menu updated to accomodate 'Zymos' setting.
VGACAD SYSTEM v2.4 UPDATE
**************************
VGACAD (Main)
Update v2.4 * BUGFIX: VDISK module did not accept changed palette from
MVGAVU; corrected.
* BUGFIX: Users with minimal "low" RAM (eg, 32KB free RAM
after runnign VGACAD) "hung" when chaining to GIFHEX or
GIFPUB at the VDISK Module. Corrected; most RAM buffers
used by VDISK are now deallocated prior to chaining to
any "chainable utility" via VDISK.
* BUGFIX: LARGE hard disks users (>32Meg) or users with
hardware 'hard disk caching devices' experienced SEVERE
problems with IMGPRO functions involving the saving or
loading of image data. This caused the infamamous
"ERROR 5 at VDISK" or "blank"/"trashed" screens saved
to TEMP files.
The "/SL:" option now triggers direct disk/video RAM to
go through slower but safer LOW memory buffers to avoid
"mix-ups" with hardware caching techniques.
To trigger "cache-compatible" routines, ALWAYS use the
"/SL:" option:
eg.; VGACAD /SL:1
* BUGFIX: Trace/Fill function would 'hang' if the "seed"
point had less than x 2x2 pixel clearance; corrected.
* BUGFIX: EXTCHAIN did not detect and verify REGISTER.OVL
file; corrected.
VGAFIL v2.2 * Adds "-H" option for "hex" (ie., 16-color GIF encoding.
No need to rename files to NYBLSCRN.* anymore; now you
encode as many as you want in one sitting without getting
out of VGAFIL.
VGACAP v7.2 * FAST VGA 640x480x16 grabs
- Automatically detects VGA 640x480x16 mode and
jumps to appropriate routine.
- Works in BIOS or ANY SVGA hardcoded setting.
* BUGFIX: Trident 8800/8900 and Zymos routines for fast
SVGA grabs were flawed; corrected.
VGACAD SYSTEM v2.30 UPDATE
**************************
VGACAD (Main)
Update v2.30 * Total overhaul of IMGPRO module. Mode selection now
follows MVGAVU (v3.0 and up) user interface. Summary of
SVGA chipset support of IMGPRO module.
ATI 18800/28800 --- VGA Wonder, Tatung, Altec, Gateway,
TeleMart, TriStar...
Tseng 4000 -------- STB 4000, Orchid Pro II,
Boca, Everex VRAM...
Tseng 3000 -------- STB, Sigma, Orchid, Willow,
Genoa 5x00, Tecmar VGA/AD,...
Paradise ---------- AST, ARC, AT&T, CompuAdd, Compaq,
old Dell, DEC, Epson, NCR, Olivetti,
Tandy, Toshiba...
Video7 v1-4 ------- new Dell, Video7 FW, Video7 VRAM ...
Video7/Headlands -- Video7 1024i
Genoa GVGA -------- Genoa 6100,6200,6300,6400,6600
C&T 452/453 ------- Cardinal, Data General...
C&T 451/455/456 --- Cardinal, (various laptops)...
Oak --------------- (no examples)
* New Chips & Technologies support for 452/453 versions.
* Chips & Technologies 1024x768x256 mode added.
* New Chips & Technologies support for 451/455/456 versions.
* Genoa GVGA 6100, 6200, 6300, 6400, 6600 chipset support.
These cards are radically different from the 5x00 series.
* Headlands/V7VGA4 (Video7 Version 5 chipset) support added
for those with Video7 1024i SVGA cards (or clones, if any).
* Video7/V7VGA (Version 1 to 4) chipset support modified for
increased compatibility, read/write operations and speed.
* BUGFIX: Tseng 4000 was in write bank only; this has been
modified for READ and WRITE bank operations.
VGAFIL v2.10 * BUGFIX: When VGAFIL was used in COMMAND LINE mode and the
RAW files were not located in the default directory or
drive, "0 x 0" images were encoded and subsequent system
"hang" resulted. This has been corrected <whew!>.
* Adds "-C" to configuration option to maintain common