On Sat, 28 Dec 2002 00:38:10 +0100, Laurens Holst wrote: >Hi Daniel!
Hi Laurens, >How did you solve the problem?? >I am writing an article for the MSX Assembly Page right now, about the key >matrices, and I am interested in how you proceeded. I proceeded the follwoing way: The game only enter in the keyboard interpreter after check there are keys pressed. So, I clean the keyboard buffer and simulate a chget, calling the functions: call 0d12h ; detect valid key transition and check buffer call 0d4eh ; check if currently pressed key is valid and then I get the ASCII value in the keyboard buffer. (^= Of course after that I need to "adapt" the result value to something the game understands, but the important thing - the key translation - was done by the BIOS. And, even if those BIOS routines have not their places "standard" (they are mentioned on MSX RedBook, but they are not mentioned as BIOS normal entries) it looks like they are in the very same place on all MSX tested. This approach is used on Uzix too, and the solution was based in the code Adriano sent to help me. It's somewhat weird, but it works. (^= >Also, I only have 2 keyboard layout tables, one being an international one, >the other being the UK one (they both differ on only 1 field). Do you have >more of them?? I had several of them, but I really don't know what I had done. But they are not "that" useful, because there is no secure way to identify (!) whay keyboard layout is used on the current machine. I tried and failed. The ID on the ROM usually do not indicates the real keyboard layout. \^= This was one of the reasons to use the BIOS. The other one was the fact I had not all the tables, and there was no space to place all keyboard tables inside de game. \^= []'s Daniel Caetano [EMAIL PROTECTED] ..."A necessidade de criatividade e' o que contribui para a mudanca. A criatividade mantem o criador vivo." (Frank Herbert) http://www.caetano.eng.br/ - This OS/2 system uptime is 0 days 00:46 hours. _______________________________________________ MSX mailing list ([EMAIL PROTECTED]) Info page: http://lists.stack.nl/mailman/listinfo/msx
