is sim/common documented anywhere?
Mike Frysinger
vapier@gentoo.org
Sat Aug 25 05:32:00 GMT 2012
On Friday 24 August 2012 20:49:36 DJ Delorie wrote:
> Problem turned out to be this: running "make all-sim" doesn't return
> an error if your compilation fails, at least on my system.
weird ... it does for me. i don't think the rules added by the common make
fragments swallow any errors ...
> I've now gotten to the point where sim_engine_run() is called. I
> assume this is where I put the actual core simulation?
yes & no. i think the core of the sim_engine_run loop is best left simple:
void
sim_engine_run (SIM_DESC sd,
int next_cpu_nr, /* ignore */
int nr_cpus, /* ignore */
int siggnal) /* ignore */
{
SIM_CPU *cpu;
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
cpu = STATE_CPU (sd, 0);
while (1)
{
step_once (cpu);
if (sim_events_tick (sd))
sim_events_process (sd);
}
}
feel free to call "step_once" whatever you want -- there doesn't appear to be
consistency atm. but that func is where you'd put all the decode+execute
logic.
-mike
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