From 5f437a92b929f53d0cd8d0f0385ed926c1838cfb Mon Sep 17 00:00:00 2001 From: Bastian Koppelmann Date: Fri, 11 Mar 2016 16:03:14 +0100 Subject: target-tricore: Add mul.f instruction Reviewed-by: Richard Henderson Signed-off-by: Bastian Koppelmann Message-Id: <1457708597-3025-5-git-send-email-kbastian@mail.uni-paderborn.de> --- target-tricore/fpu_helper.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'target-tricore/fpu_helper.c') diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c index 747d897..21459bc 100644 --- a/target-tricore/fpu_helper.c +++ b/target-tricore/fpu_helper.c @@ -106,3 +106,29 @@ uint32_t helper_f##op(CPUTriCoreState *env, uint32_t r1, uint32_t r2) \ } FADD_SUB(add) FADD_SUB(sub) + +uint32_t helper_fmul(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint32_t flags; + float32 arg1 = make_float32(r1); + float32 arg2 = make_float32(r2); + float32 f_result; + + f_result = float32_mul(arg1, arg2, &env->fp_status); + + flags = f_get_excp_flags(env); + if (flags) { + /* If the output is a NaN, but the inputs aren't, + we return a unique value. */ + if ((flags & float_flag_invalid) + && !float32_is_any_nan(arg1) + && !float32_is_any_nan(arg2)) { + f_result = MUL_NAN; + } + f_update_psw_flags(env, flags); + } else { + env->FPU_FS = 0; + } + return (uint32_t)f_result; + +} -- cgit v1.1