Date: Sun, 26 May 1996 19:31:24 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: unix + asm Message-ID: <199605261731.TAA02680@uriah.heep.sax.de> In-Reply-To: <199605261614.CAA31130@godzilla.zeta.org.au> from Bruce Evans at "May 27, 96 02:14:52 am"
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As Bruce Evans wrote: > >Everything is just ``a bit different''. The operators are in the > >`right' order, i.e. > > `wrong' > > > mov $0, %eax ``move number 0 into register eax'' > > >as opposed to Intel (Microsloth?): > > > mov eax, 0 ``move eax into 0'' ??? :) > > Intel. Gas (AT&T?) (MIT?) order is only right if C order is wrong. Depends on your point of view, of course. For the Zilog `ld' mnemonic, ``ld dst, src'' sounds more reasonable to me (``load the dst with src.''). For the Intel `mov' mnemonic, the other way round seems better suited (``move src into dst.''). > ># > ># const char * > ># btos (int b); > ># > ># /* Boolean to string */ > ># > > `#' is a standard comment symbol (I think '/' works too), but it is best > to usually use C comments, since `# if' is a cpp conditional, not a > comment, and everything must be a cpp token. This is only true for .S files which are preprocessed. .s files are being passed directly to the assembler. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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