how do i write assembly code in amd64
lm101ml at bellsouth.net
Fri Jan 4 14:40:42 PST 2008
David O'Brien wrote:
> On Sat, Dec 22, 2007 at 08:29:46PM -0800, Nate Eldredge wrote:
>> On Sun, 23 Dec 2007, zhang feng wrote:
>>> i write asm32 code in linux.when i run the code in freebsd amd64, it
>>> cannt run. someone give me a help for coding asm64 in freebsd.
>> amd64 has a whole different instruction set than 32-bit x86,
> Not true at all. 97% of the instructions are the same. What is
> different is the operand size and the C calling ABI.
> For the most part, code can be port by simple s/%e/%r/.
look at some of the freebsd www documentation - handbooks and articles:
freebsd developers handbook?
freebsd architecture handbook?
look at the under developers -> platforms -> amd64 project from
look at some of the freebsd asm coding in the source tree:
find . -name '*.[s|S]' -print | grep amd64
More information about the freebsd-amd64