Re: [PATCH 06/10] target/tricore: Implement hptof insn

[Richard Henderson <richard.henderson@linaro.org>]

On 8/26/23 09:02, Bastian Koppelmann wrote:
> +uint32_t helper_hptof(CPUTriCoreState *env, uint32_t arg)
> +{
> +    float16 f_arg = make_float16(arg);
> +    uint32_t result = 0;
> +    int32_t flags = 0;
> +
> +    if (float16_is_any_nan(f_arg)) {
> +        if (float16_is_signaling_nan(f_arg, &env->fp_status)) {
> +            flags |= float_flag_invalid;
> +        }
> +        result = 0;
> +        result = float32_set_sign(result, f_arg >> 15);
> +        result = deposit32(result, 23, 8, 0xff);
> +        result = deposit32(result, 21, 2, extract32(f_arg, 8, 2));
> +        result = deposit32(result, 0, 8, extract32(f_arg, 0, 8));
> +    } else if (float16_is_infinity(f_arg)) {
> +        if (float16_is_neg(f_arg)) {
> +            result = NEG_INFINITY;
> +        } else {
> +            result = POS_INFINITY;
> +        }
> +    } else {
> +        set_flush_inputs_to_zero(0, &env->fp_status);
> +        result = float16_to_float32(f_arg, true, &env->fp_status);
> +        set_flush_inputs_to_zero(1, &env->fp_status);
> +        flags = f_get_excp_flags(env);
> +    }

Again, only the else case.


r~