From: kunst AT prl DOT philips DOT nl (Pieter Kunst)
Subject: Re: writing interrupt handlers
To: S0R1282 AT tamzeus DOT bitnet
Date: Tue, 12 Jan 93 17:41:21 MET
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu (DJGPP users list)
Mailer: Elm [revision: 70.30]


Steve writes:
> 
> I'm porting a routine from BC that traps the com interupt to store incoming
> characters in a buffer.  

If you unzip 'aeasy101.zip' you'll find the routines you need.
(DJ also has his own version of an ASYNC driver, the one I use).

> In BC the declaration is void interrupt int_read(void);
> gcc does not understand the interrupt keyword, is there an equivalent that
> will save/restore registers, return via iret, etc?

DJGPP is very useful for porting UNIX software to the PC,
but less suited to port MSC or Borland C programs...
I suggest to use the ASYNC driver from DJ or AE.

--

Pieter Kunst (kunst AT prl DOT philips DOT nl)