于 2020年3月29日 GMT+08:00 上午3:09:16, Richard Henderson
写到:
>On 3/28/20 2:08 AM, Jiaxun Yang wrote:
>> -gen_helper_float_madd_s(fp2, cpu_env, fp0, fp1, fp2);
>> +if (ctx->mac2008) {
>> +gen_helper_float_madd_s(fp2, cpu_env, fp0, fp1,
>fp2);
>> +}
On 3/28/20 2:08 AM, Jiaxun Yang wrote:
> -gen_helper_float_madd_s(fp2, cpu_env, fp0, fp1, fp2);
> +if (ctx->mac2008) {
> +gen_helper_float_madd_s(fp2, cpu_env, fp0, fp1, fp2);
> +} else {
> +gen_helper_float_maddf_s(fp2, cpu_env, f
MAC2008 was introduced in MIPS Release 3 but removed in MIPS Release 5.
However, there are some processors implemented this feature.
some Ingenic MCU can config MAC2008 status runtime while whole
Loongson-64 family are MAC2008 only.
FCSR.MAC2008 bit indicates FMA family of instructions on these
pr
