From: "Johnny Chan" <jchan AT paclink DOT net>
To: <djgpp AT delorie DOT com>
Cc: <Martin_Czamai AT peak-service DOT com>
Subject: RE: deriving the interrupt vector
Date: Wed, 6 Oct 1999 11:08:20 -0700
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Do you know how to raise a software interrupt in DJGPP?
I had setted the interrupt vector, now I want to try
to test it within my program, Does DJGPP has any
function to raise a 32bit interrupt?
--jC

>>-----Original Message-----
>>From: Prashant TR [mailto:prashant_news AT yahoo DOT com]
>>Sent: Wednesday, October 06, 1999 5:33 AM
>>To: djgpp AT delorie DOT com
>>Cc: Martin_Czamai AT peak-service DOT com
>>Subject: Re: deriving the interrupt vector
>>
>>
>>
>>
>>--- Martin Czamai <Martin_Czamai AT peak-service DOT com>
>>wrote:
>>> Hi all again,
>>> 
>>> who can tell me how to derive the interrupt vector,
>>> when I've got the
>>> interrupt request line (interrupt level) of a
>>> interrupt controller?
>>> 
>>
>>Hi Martin,
>>
>>I didn't quite get what you mean. Anyway, I assume
>>you're asking me how to catch IRQs 0-15.
>>
>>The __dpmi_version_ret function gives you the PIC
>>mater amd slave base interrupts.
>>
>>This means that if you want to hook IRQ0-7, you'll
>>need to hook up interrupt vector=pic_master_base+IRQ
>>no. This applies for IRQs 0-7.
>>
>>For IRQs 8-15, you'll need to hook up
>>interrupt=pic_slave_base+IRQ no.
>>
>>Normally, IRQ0-7=interrupt 8h-0fh
>>          IRQ8-15=interrupt 70h-78h
>>
>>Use _go32_dpmi_set_protected_mode_interrupt_vector.
>>
>>Is this more or less what you're looking for ?
>>
>>----
>>Prashant TR
>>http://www.members.tripod.com/prashant_tr/
>>
>>=====
>>
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