On 11 Jan 2022 22:24, Dragan Mladjenovic wrote:

i don't have substantial feedback on this since i'm not a MIPS expert

> +static sim_fpu_status
> +inner_fmac (int (*sim_fpu_op) (sim_fpu *, const sim_fpu *, const sim_fpu *),
> +	    uint64_t op1,
> +	    uint64_t op2,
> +	    uint64_t op3,
> +	    sim_fpu_round round,
> +	    sim_fpu_denorm denorm,
> +	    FP_formats fmt,
> +	    uint64_t *result)
> +{
> +  sim_fpu wop1, wop2, ans;
> +  sim_fpu_status status = 0;
> +  sim_fpu_status op_status;
> +  uint32_t t32 = 0;
> +  uint64_t t64 = 0;
> +
> +  switch (fmt)
> +  {

bad indentation on switch body.  some other funcs in this patch have the same
problem, so please go through it and double check.

> +    default:
> +      sim_io_eprintf (SD, "Bad switch\n");
> +      abort ();

when you have access to SD, you can use sim_io_error to do the msg+abort.
sim_io_error (SD, "%s: unaccounted switch", __func__);

if you have a sim_cpu, you can use CPU_STATE (cpu).
-mike