Date: Sun, 27 Oct 1996 09:54:07 -0500
Message-Id: <199610271454.JAA09605@delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: chambersb AT juno DOT com
CC: djgpp AT delorie DOT com
In-reply-to: <19961027.224846.8183.1.chambersb@juno.com>
Subject: Re: 386Max & DPMI 1.0


> >machine:
> >  am386DX 40, 8MB RAM, CD-ROM 4x, modem on COM2, 1MB 8900CL/D gfx 
> 
> how can you have a DX machine without an FPU?
> Isn't that the definition of DX?

No, SX/DX mean different things on the 386 than on the 486.

386DX means it's got a 32-bit external data bus.  The 386SX had a
16-bit data bus.  Neither had a built-in FPU - you had to add a 387.

For 486's, the 486DX had an FPU built-in, and the 486SX did not, but
both had the same external data bus.