The Mobius and 386 machines

bubach · **Posted:** Mon Mar 29, 2004 7:18 am

mm.. i think so.
tim should try to decide witch cpu is required.... ;D

Tim · **Posted:** Mon Mar 29, 2004 5:04 pm

I already decided

-- Pentium.

bubach · **Posted:** Tue Mar 30, 2004 2:53 am

until when? until someone discovers that u have used a pentium 3 opcode?

just kidding..

DennisCGc · **Posted:** Tue Mar 30, 2004 6:48 am

DennisCGc wrote:

Hey, I tested it and my keyboard doesn't work

Bochs log:

Code:

00155975058i[KBD  ] reset-disable command received
00157455481e[KBD  ] controller_enQ(): OUTB set!
**same message repeated a dozen of times**
00157466698e[KBD  ] controller_enQ(): OUTB set!
00285290500i[KBD  ] internal keyboard buffer full, ignoring scancode.(20)
00285632500i[KBD  ] internal keyboard buffer full, ignoring scancode.(a0)
00285906500i[KBD  ] internal keyboard buffer full, ignoring scancode.(20)

I don't know what's wrong with it.
(But the startup screen looks quite good

)

When I tested it again, when I didn't press the F12 button in bochs, which means: use mouse, it worked.
May be a bug in bochs, or the Mobius.

srg · **Posted:** Tue Mar 30, 2004 4:28 pm

Tim Robinson wrote:

I already decided

-- Pentium.

Pentium! Oh well. As that's what your going for, it would be a good idea if you optimised it for the pentium as well

, compiler optimisations and instruction pairings etc.

As for below Pentium cpuid, supported are:
Intel 486DX4 100 (but AFAIK not AMD 486DX4 100/120)
AMD Am5x86 133MHz
Possibly Cyrix 5x86

One special case though is the Cyrix 6x86. It had the CPUID instruction but it could be turned on/off, the default is OFF

.
Only a few BIOSs had an option to turn it on!

Will you be supporting Cyrix's Tim? (I'll test the mobius with a cyrix soon).

hope this helps.
srg

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The Mobius and 386 machines

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