Re: [Qemu-devel] [PATCH v2 5/7] target/m68k: add fsglmul and fsgldiv

[Richard Henderson]

On 06/26/2017 03:03 PM, Laurent Vivier wrote:
> +void HELPER(fsglmul)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
> +{
> +    floatx80 a, b;
> +
> +    PREC_BEGIN(32);
> +    a = floatx80_round(val0->d, &env->fp_status);
> +    b = floatx80_round(val1->d, &env->fp_status);
> +    res->d = floatx80_mul(a, b, &env->fp_status);
> +    PREC_END();
> +}
> +

You need to set the rounding mode to truncate for the first two operations.


r~