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CGA3.DOC
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1990-09-20
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╓─────────────────────────────────────────────────────────────────────────────╖
║ ║
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║ ▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀ ▀▀ ▀▀ ▀▀▀ ▀▀▀▀▀▀ ▀▀ ▀▀▀▀▀▀ ║
║ ║
║ o o ║ Birdware ║
║ O ║ 1 9 9 0 ║
║ ║
║ __________________________________________________________________ ║
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║ Introduction ║
║ ──────────── ║
║ ║
║ This program can emulate a normal CGA text to view ║
║ EGA/VGA colors using 'my' fonts and of course can also show combinations ║
║ of different user's specify character (in normal text width or a fatter ║
║ one). ║
║ ║
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║ History ║
║ ─────── ║
║ ║
║ v1.0 1989 Simple emulation up to 127 colors on a pure ║
║ CGA monitor. *Prototype* ║
║ ║
║ v1.0x 1989 Few-like-2-hid bugs corrected ║
║ ║
║ v2.0 1989 Emulation and dithering up to 256 colors on a pure ║
║ CGA monitor *CheerS!* ║
║ ║
║ v2.2 1989 Allow users' to change characters for different ║
║ ║
║ v2.3 7th June 89 Program in complied environment ║
║ PS: Program was hacked by a friend of mine with ║
║ possible insertion of viruses, vulnerable to ║
║ viruses and dieases like Dark Avenger. ║
║ ║
║ v2.5 28th June 90 Highly compressed and protected by LZESHELL and ║
║ FSHEILD respectively. *thanks* ║
║ Dreams of getting victimize or raped by malicious ║
║ viruses are over. Users' will be notify ║
║ immediately when this program is hacked! ║
║ PS: "TRIP" protection scheme is used ║
║ ║
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╙─────────────────────────────────────────────────────────────────────────────╜
╓─────────────────────────────────────────────────────────────────────────────╖
║ ║
║ ║
║ v3.0 14th Sep 90 - Optimization of source code ║
║ - Frienditised program and documentary file ║
║ - Ergonomised screen and sound effects ║
║ - Implementation of "Qua-Protection" ║
║ ║
║ ║
║ ║
║ New features in v2.5 ║
║ ──────────────────── ║
║ ║
║ o BACKGROUND colors combinations '0-7' (Default: 0) ║
║ can be achieved! ║
║ ║
║ o Faster screen display than previous versions ║
║ ║
║ o Program protected by "LZESHELL" and "FSHEILD" ║
║ ║
║ ║
║ ║
║ New feature in v3.0 ║
║ ─────────────────── ║
║ ║
║ o Even faster screen display thain in v2.5 by up ║
║ to 30% ║
║ ║
║ o Main changes in through the implementation of ║
║ "Qua-Protection" scheme. *CheerS!* ║
║ ║
║ ║
║ ║
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║ ║
║ Usage ║
║ ───── ║
║ ║
║ A>CGA3 n where {n: 0,1,2,3,...,7) ║
║ n rep. the background color you need ║
║ ║
║ ║
║ n=0 black ║
║ 1 blue ║
║ 2 green ║
║ 3 cyan ║
║ 4 red ║
║ 5 magenta ║
║ 6 brown ║
║ 7 while ║
║ ║
║ Inside the program, the CHARACTER means any letter that ║
║ you wish to take as a 'cover' for the program. F1-F10 contains ║
║ significance CHARACTERS ║
║ Screen width. 0 is in width 80x25, tiny display ║
║ 1 is in width 40x25, big display ║
║ ║
╙─────────────────────────────────────────────────────────────────────────────╜
╓─────────────────────────────────────────────────────────────────────────────╖
║ ║
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║ Quad-Protection ║
║ ─────────────── ║
║ ║
║ Protection include the aids from LZESHELL, FSHIELD and 2 other ║
║ tricks by me. ║
║ This scheme was develop to protect program from being raped by ║
║ hackers or infested by viruses such as "Dark Avenger" which one of my ║
║ program - CGA25 was raped by my friend, which this protection, fat hopes! ║
║ "Dark Avenger" virus did mate with some other of my programs which ║
║ after cleansing it with "CLEAN" from McFree was unuseable!! ║
║ ║
║ * NOTES for programmers * ║
║ ║
║ o If you only used LZESHELL, you can only prevent your program ║
║ from being hacked to a certain extent. ║
║ Can prevent novices but not experts hackers! ║
║ o With Fshield alone, internal codes is easily stolen although ║
║ it can prevent prankster from doing evil. ║
║ Still it cannot prevent expert hackers! ║
║ o With both LZESHELL and FSHIELD, he chances of your program ║
║ being hacked is greatly reduced! ║
║ o For security purposes, try to put in more level of protection, ║
║ such as mine one, which I check specific are of the program ║
║ for specific code, if alter, alarm user! ║
║ ║
║ ║
║ ║
║ ║
║ ║
║ DISCLAIMER ║
║ ────────── ║
║ ║
║ You are completely responsible for determining the fitness or usability of ║
║ this package. I will not be liable for any damages, of any kind, arising ║
║ from any failure of any programs in this package to perform as expected. ║
║ CGA v3.0 (c) 1989-1990 KraZimaSter ║
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╙─────────────────────────────────────────────────────────────────────────────╜
╓─────────────────────────────────────────────────────────────────────────────╖
║ ║
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║ ║
║ Share-Ware ║
║ ────────── ║
║ ║
║ CGA is distributed under the SHAREWARE concept or otherwise ║
║ Birdware. It is NOT Public Domain. If you feel happy or satisfied ║
║ with the program, you do not have to contribute anything. ║
║ ║
║ Please send your mail directly to: ║
║ ║
║ Ye Sunling ║
║ Blk 67 ║
║ Telok Blangah Drive #05-220 ║
║ S(0410) ║
║ ║
║ Or indirectly to me at ║
║ ║
║ KraZi KoneXion BBS ║
║ Datal: (65)-775-4140 ║
║ ║
║ ║
║ Please include your name, address, occupation, and CGA version ║
║ you are registering. ║
║ ║
║ You are encouraged to make copies for others to evaluate, as well as for ║
║ distribution on Bulletin Board Systems (BBS's). However, you are not ║
║ authorized to accept any payment for doing so. ║
║ ║
║ Suggestions? Problems? Bugs? Comments? Complains?. Please let me know. ║
║ Your help will improve CGA. ║
║ ║
║ ║
║ ║
║ ║
║ ║
║ ║
║ CheerS! ║
║ KraZimaSter ║
║ 14th September 1990, 11:32:25am ║
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╙─────────────────────────────────────────────────────────────────────────────╜