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Article #2231Re: IRQs and Endeavour Board & W95
From: Iain Paton
Date: Sun, 14 Jul 1996 00:00
Date: Sun, 14 Jul 1996 00:00
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Richard Ashton (antispam@horizon.co.uk) wrote: : Correct, only if the 80387 etc were external to the processor is IRQ13 : needed, it is spare on all (normal) 486's and Pentium machines. The problem is in accessing it. I don't have an Endeavour MB, but none of the (3) PCI boards I have here allow it as a PCI interrupt. It's not brought out to the ISA connector so that avenue is blocked too. Also, tho' there's no requirement to use IRQ 13, FERR is still connected to IRQ 13 on every MB I've worked on - right up to the latest P6 ones. The simple reason for this is that most s/w still has to be generic enough to run on everything from 386 to P6 and as such has to use the lowest common denominator to access various features. Not a good reason IMHO but that's the way it is. I --
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1036bc,5769e81f2a3a20a2 X-Google-Attributes: gid1036bc,public X-Google-Thread: 110292,5769e81f2a3a20a2 X-Google-Attributes: gid110292,public From: ipaton@sphere.demon.co.uk (Iain Paton) Subject: Re: IRQs and Endeavour Board & W95 Date: 1996/07/14 Message-ID: <4saiih$6t8@sphere.demon.co.uk> X-Deja-AN: 168318218 x-nntp-posting-host: sphere.demon.co.uk references: <836773997snz@longley.demon.co.uk> <836848634snz129.os2.7@horizon.co.uk> <omlet.31e7144cwn@news.wolfe.net> <837257759snz129.os2.7@horizon.co.uk> followup-to: comp.sys.intel,demon.tech.pc organization: Home of the Heretic newsgroups: comp.sys.intel,demon.tech.pc