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Re: PC boot image for 720k FDD
- To: rur at altavista dot com
- Subject: Re: [ECOS] PC boot image for 720k FDD
- From: Bart Veer <bartv at redhat dot com>
- Date: Tue, 18 Jul 2000 15:19:43 +0100
- CC: ecos-discuss at sourceware dot cygnus dot com
- References: <20000718071701.687.cpmta@c012.sfo.cp.net>
- Reply-to: bartv at redhat dot com
>>>>> "Vlastimil" == Vlastimil Masek <rur@altavista.com> writes:
Vlastimil> Is there any way to make PC boot image for 720kB FDD.
Vlastimil> The current floppy disk boot code "gdb_module.bin"
Vlastimil> seems to be hard-coded only for 1.44M floppies.
I suspect that none of the developers of the i386 PC support had
access to a machine that still used a 720K floppy drive.
After a very quick glance through the source code, it looks like
most/all of the relevant code lives in the hal_cpu_init macro in
hal/i386/pc/<version>/include/platform.inc. To add support for 720K
floppies you would want to add a configuration option, and then modify
this initialization macro to cope with different types of floppy
drive.
Bart Veer // eCos net maintainer