From: James Philbin <james.philbin@oriel.ox.ac.uk>
To: gcc-help@gcc.gnu.org
Subject: Inline assembly help
Date: Sun, 18 Apr 2004 18:58:00 -0000 [thread overview]
Message-ID: <1082318405.15695.3.camel@XYZ.mshome.net> (raw)
Hi,
Trying to compile the following inline asm statement:
asm("fmull %[twopi]\n\t" \
"fsincos\n\t" \
"fadd %%st(0), %%st(0) \n\t" \
"fxch \n\t" \
"fadd %%st(0), %%st(0)\n\t" \
"fxch %%st(2) \n\t" \
"fld1 \n\t" \
"fsub %%st(1), %%st(0) \n\t" \
"fld %%st(1) \n\t" \
"fmul %%st(1), %%st(0) \n\t" \
"fsqrt \n\t" \
"fmul %%st(0), %%st(3) \n\t" \
"fmulp %%st(0), %%st(4) \n\t" \
"fsub %%st(1), %%st(0) \n\t" \
"fstpl %[zt] \n\t" \
"fstp %%st(0) \n\t" \
"fstpl %[xt] \n\t" \
"fstpl %[yt]" \
:[xt] "=m" (x), \
[yt] "=m" (y), \
[zt] "=m" (z) \
:[twopi] "F" (2*M_PI), \
"t" (drand48()), \
"u" (drand48()));
g++ errors with:
/tmp/cc7QJhi7.s: Assembler messages:
/tmp/cc7QJhi7.s:29: Error: junk `.28318530717958623199593e+0' after
expression
make: *** [light.o] Error 1
The .2831... is obviously the last part of 2*M_PI, so it seems to think
it's a integer imm?
Many thanks,
James
next reply other threads:[~2004-04-18 18:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-18 18:58 James Philbin [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-03-17 6:16 Inline Assembly Help Brian O'Mahoney
2010-03-17 6:20 ` Manjunath S M
2000-01-01 12:16 inline assembly help johnnydoeslinux
2000-04-01 0:00 ` johnnydoeslinux
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