Replogle Posted December 9, 2012 Share Posted December 9, 2012 I recall opening an account with a bank some time ago, whereby the account manager was entering Thai letters on an older computer with a green monochrome CRT, probably running DOS. Can anyone tell me whether these systems are using a modifyed ROM character set where each Thai letter combination is represented by a 8x14 pixel bitmap (address F600:0000)? Thank you. Link to comment Share on other sites More sharing options...
Gregory Morozov Posted December 9, 2012 Share Posted December 9, 2012 There are resident DOS programs to modify the character table on the fly, no need to modify ROM. I really wonder why are you still interested in this Link to comment Share on other sites More sharing options...
Replogle Posted December 9, 2012 Author Share Posted December 9, 2012 (edited) I like to write a simple Thai-only programming language which incorporates a text editor, compiler and virtual machine, written in ANSI C with a few non-standard calls to the video controller and whatnot. It'll boot as a stand-alone operating system in text mode, with read and writes to the disk uses a FAT12 file system. Nothing fancy, no graphics, just good old-fashioned 0xb800:0000 text mode. Want to use this exact character set. Is it available somewhere? Edited December 9, 2012 by Replogle Link to comment Share on other sites More sharing options...
toastie Posted December 9, 2012 Share Posted December 9, 2012 You'll maybe find it easier if you base it on linux -- maybe a stripped-down version would suit you. Unless you are going to write the whole thing yrself, you will find a lot more help forums/libraries/fonts/etc out there. Link to comment Share on other sites More sharing options...
kpmsprtd Posted December 10, 2012 Share Posted December 10, 2012 How long ago is "some time ago"? I mean, I love MS-DOS 6.22 as much as the next man, but at some point I really did have to let it go. For linguistic purposes, I am quite happy with Ubuntu, which supports the Khmer, Lao, and Thai input that I need. (Not sure about Burmese, but if not yet, relatively soon I'm sure...) Link to comment Share on other sites More sharing options...
AyG Posted December 10, 2012 Share Posted December 10, 2012 Surely you don't need to do anything fancy - just use DOS code page 874 (Thai). Link to comment Share on other sites More sharing options...
jsat Posted December 10, 2012 Share Posted December 10, 2012 they were most likely using CTOS which is still on the net for dload but I do apologise in advance I have forgotten where. Link to comment Share on other sites More sharing options...
Replogle Posted December 11, 2012 Author Share Posted December 11, 2012 I'd like to have the freedom to port code to microcontrollers with minimal everything i.e. 16K RAM 16K ROM Character LCD, using an 8051, Atmel. Linux is a no go. Sure I'll find what I need soon enough if I dig around a bit. Thank You! Link to comment Share on other sites More sharing options...
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