On 09.04.2013, at 17:00, Fabien Chouteau wrote:
> From: Tristan Gingold <ging...@adacore.com>
>
> Raise the exception on the first occurence, do not wait for the next
> floating point operation.
Do you have a test case for this one that I could use to compare results with
real hardware?
Alex
>
> Signed-off-by: Fabien Chouteau <chout...@adacore.com>
> ---
> target-ppc/fpu_helper.c | 23 ++++++++++++-----------
> 1 file changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
> index 9e779ea..1e141fb 100644
> --- a/target-ppc/fpu_helper.c
> +++ b/target-ppc/fpu_helper.c
> @@ -470,6 +470,18 @@ void store_fpscr(CPUPPCState *env, uint64_t arg,
> uint32_t mask)
>
> void helper_float_check_status(CPUPPCState *env)
> {
> + int status = get_float_exception_flags(&env->fp_status);
> +
> + if (status & float_flag_divbyzero) {
> + float_zero_divide_excp(env);
> + } else if (status & float_flag_overflow) {
> + float_overflow_excp(env);
> + } else if (status & float_flag_underflow) {
> + float_underflow_excp(env);
> + } else if (status & float_flag_inexact) {
> + float_inexact_excp(env);
> + }
> +
> if (env->exception_index == POWERPC_EXCP_PROGRAM &&
> (env->error_code & POWERPC_EXCP_FP)) {
> /* Differred floating-point exception after target FPR update */
> @@ -477,17 +489,6 @@ void helper_float_check_status(CPUPPCState *env)
> helper_raise_exception_err(env, env->exception_index,
> env->error_code);
> }
> - } else {
> - int status = get_float_exception_flags(&env->fp_status);
> - if (status & float_flag_divbyzero) {
> - float_zero_divide_excp(env);
> - } else if (status & float_flag_overflow) {
> - float_overflow_excp(env);
> - } else if (status & float_flag_underflow) {
> - float_underflow_excp(env);
> - } else if (status & float_flag_inexact) {
> - float_inexact_excp(env);
> - }
> }
> }
>
> --
> 1.7.9.5
>
