From: Bill Currie <bcurrie@tssc.co.nz>
To: Philipp Thomas <kthomas@gwdg.de>
Cc: egcs@egcs.cygnus.com
Subject: Re: Help with assembly
Date: Fri, 30 Apr 1999 23:15:00 -0000 [thread overview]
Message-ID: <371FA817.D4F05745@tssc.co.nz> (raw)
Message-ID: <19990430231500.alqvNw2BKl3-1iLFBiAStu_Jkp26rWMH6o_xNaHdnK8@z> (raw)
In-Reply-To: <3720a164.2460070@mailer.gwdg.de>
Philipp Thomas wrote:
>
> Yes, I know this possibly isn't the right place to ask. But could somebody
> with more knowledge of x86 assembly tell me what's wrong with this asm
> (besides the message that egcs spits out) and how to possibly fix it ?
>
> time.c: In function `calibrate_tsc':
> time.c:611: Invalid `asm' statement:
> time.c:611: fixed or forbidden register 1 (dx) was spilled for class DREG.
>
> __asm__("mull %1\n\t"
> "divl %4"
> : "=a" (calibrate_time)
> : "r" (calibrate_latch), "0" (1000000), "d" (0),
^^^^^
Drop the "d" register, you don't need it (mull only *sets* edx, it
doesn't read it, only div does) and the conflict between it and your
clobber below is what's causing your problem.
> "r" (CLOCK_TICK_RATE)
> : "edx");
>
> Philipp Thomas
>
> --
> caffeine low .... brain halted
--
Leave others their otherness
next prev parent reply other threads:[~1999-04-30 23:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-04-22 15:28 Philipp Thomas
1999-04-22 15:48 ` Bill Currie [this message]
1999-04-30 23:15 ` Bill Currie
1999-04-22 22:21 ` Jeffrey A Law
1999-04-30 23:15 ` Jeffrey A Law
1999-04-30 23:15 ` Philipp Thomas
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