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alpha: fix conversion from denormal float to double 

The trap handler does properly update the fraction,
but not the exponent...

Thanks to Paolo Bonzini for the bug report and the testcase.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Paolo Bonzini <bonzini@gnu.org>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ivan Kokshaysky 2008-01-17 15:21:13 -08:00 committed by Linus Torvalds
parent f63dcda197
commit 6b2d2cec10
1 changed files with 1 additions and 1 deletions
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2
arch/alpha/math-emu/math.c
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@ -225,7 +225,7 @@ alpha_fp_emul (unsigned long pc)
FP_UNPACK_SP(SB, &vb);
DR_c = DB_c;
DR_s = DB_s;
DR_e = DB_e;
DR_e = DB_e + (1024 - 128);
DR_f = SB_f << (52 - 23);
goto pack_d;
}