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Re: about .code16
- To: squalls_tang at 263 dot net
- Subject: Re: about .code16
- From: Nick Clifton <nickc at redhat dot com>
- Date: Mon, 12 Feb 2001 10:52:59 -0800
- CC: binutils at sources dot redhat dot com
Hi Tang,
: In fact,I just want to code something for PC bootstrap(x86)
: under FreeBSD using gas,ld,objcopy;(First,make target to elf,then
: use "objcopy"onvert it to format binary);And only the codes with
: directive .code16 works;So i want to know what's the difference it
: makes.
The .code 16 directive is documented in the assembler documentation,
in the i386 specific section. Have a look at the file
gas/doc/c-i386.texi for more information.
: BTW,I don't find any .code16 in FreeBSD boot assembly codes;
: Is there something else could be done to make things right?
: (FreeBSD3.2 on x86;/sys/boot2/*.s)
Sorry - that is out of my league. Maybe they use a command line
switch to force 16 bit code by default ?
Cheers
Nick