From: Laurent Vivier <laur...@vivier.eu> Signed-off-by: Laurent Vivier <laur...@vivier.eu> --- target-m68k/helper.c | 21 +++++++-------------- 1 files changed, 7 insertions(+), 14 deletions(-)
diff --git a/target-m68k/helper.c b/target-m68k/helper.c index 979c8e5..f67a2d8 100644 --- a/target-m68k/helper.c +++ b/target-m68k/helper.c @@ -1355,22 +1355,15 @@ void HELPER(sqrt_FP0)(CPUState *env) void HELPER(ln_FP0)(CPUState *env) { - float64 f, log2; - floatx80 res; - - /* ln(x) = log2(x) / log2(e) */ - - res = FP0_to_floatx80(env); - DBG_FPUH("ln_FP0 %Lg", floatx80_to_ldouble(res)); - - f = floatx80_to_float64(res, &env->fp_status); + floatx80 val; + long double res; - log2 = float64_log2(f, &env->fp_status); - res = floatx80_div(float64_to_floatx80(log2, &env->fp_status), - floatx80_log2e, &env->fp_status); - DBG_FPU(" = %Lg\n", floatx80_to_ldouble(res)); + val = FP0_to_floatx80(env); + DBG_FPUH("ln_FP0 %Lg", floatx80_to_ldouble(val)); + res = logl(floatx80_to_ldouble(val)); + DBG_FPU(" = %Lg\n", res); - floatx80_to_FP0(env, res); + floatx80_to_FP0(env, ldouble_to_floatx80(res)); } void HELPER(log10_FP0)(CPUState *env) -- 1.7.2.3