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target-ppc: fix frsp instruction 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6036 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-12-15 01:00:17 +00:00
parent 27ee5df007
commit 6ad193ed43
1 changed files with 5 additions and 2 deletions
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7
target-ppc/op_helper.c
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@ -1478,6 +1478,7 @@ uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3)
uint64_t helper_frsp (uint64_t arg)
{
CPU_DoubleU farg;
float32 f32;
farg.ll = arg;
#if USE_PRECISE_EMULATION
@ -1485,10 +1486,12 @@ uint64_t helper_frsp (uint64_t arg)
/* sNaN square root */
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
} else {
farg.d = float64_to_float32(farg.d, &env->fp_status);
f32 = float64_to_float32(farg.d, &env->fp_status);
farg.d = float32_to_float64(f32, &env->fp_status);
}
#else
farg.d = float64_to_float32(farg.d, &env->fp_status);
f32 = float64_to_float32(farg.d, &env->fp_status);
farg.d = float32_to_float64(f32, &env->fp_status);
#endif
return farg.ll;
}