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Article #4824

logitech -> JPI

#4824
From: Wladyslaw M. Turski
Date: Wed, 17 May 1989 09:51
39 lines
1758 bytes
I'm about to start translating a graphics package from Logitech 
Modula 2 to JPI Modula 2 and there are a couple of things that 
bother me. So I thought i'd try my luck with the people of netland
to see if you have some good answers to a couple of questions.

1. Registers seems to be implemented in a different way. Does this mean
   that i have to code the routines SETREG and GETREG in assembler OR
   could I (SETREG) set the registers (AX BX ..), issue an interrupt 1C
   and hope that after the return the registers will be unchanged?

2. This won't work with GETREG, will it?

3. The SYSTEM module exports AX,BX,CX,DX,ES,DI. This should be Constants
   but what are their values?

4. Is the Display module compatible with the JPI IO module?

5. Witch other routines are there in the module Keyboard except Read?

6. Is there a general way around the CODE routine or do I really have to 
   do it the way JPI have in their PROCESS module?

7. Would it be easier for me to simply buy a logitech compiler and then
   try to link the whole @$$%"# ?

8. Is there anything else I should know about except "Don't do it"?

9. Is there anyone outthere who's done this already?



Any source code ang suggestions for interface modules between JPI and Logitech
would be greatly appreciated.

Many thanks.

Peter Lundberg
peter@umecs.cs.umu.se
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From: peter@umecs.cs.umu.se (Wladyslaw M. Turski)
Newsgroups: comp.lang.modula2
Subject: logitech -> JPI
Keywords: Logitech JPI
Message-ID: <856@umecs.cs.umu.se>
Date: 17 May 89 09:51:34 GMT
Organization: Dep. of Info.Proc, Umea Univ., Sweden
Lines: 39