[LispM-Hackers] Status on x86 bare iron for those who care
Wed Mar 6 09:23:00 2002
John Morrison wrote:
> The Bad News: The same source code test that successfully puts the x86
> into protected mode for JOS causes the machine to reset itself.
> This might be because I'm using NASM (the assembler of choice -- see
> http://www.web-sites.co.uk/nasm/) with ELF output format instead of
> a.out, which I take it now "ld" will not get stupid about. I shall
> play with this more ASAP (probably early this weekend).
OK. I know that I should *really* be writing this incredibly important,
yet excutiatingly boring report, but ...
... the ELF (vs a.out) target format was the problem.
I can make and boot a binary, including C++ code, in protected mode. I
know the kprintf and scrolling console text (not scrollable backwards)
When I turned some per-file debugging on, I know the old code found
either the Etherboot record or the DHCP reply, and printed out some
likely-looking IP addresses in hex. I've got to see whether this is a
BOOTP (what I think I *used* to use) vs DHCP issue. This code is at
least 2 years old.
I do not know whether the following work:
- the conservative GC for the C++ code (I do not know that we care
- the interrupt-handling
I know the following have not been implemented:
- loading the load band into memory.
Please send either comments and/or questions to me...
I'm still interested in hearing what people think about structuring the
==== John Morrison
==== MAK Technologies Inc.
==== 185 Alewife Brook Parkway, Cambridge, MA 02138
==== vox:617-876-8085 x115