/* Run one iteration of the x86 emulation loop.
* Return FALSE if there is no more simulation to perform. */
int x86_emu_run(void)
{
struct x86_ctx_t *ctx;
/* Stop if there is no context running */
if (x86_emu->finished_list_count >= x86_emu->context_list_count)
return 0;
/* Stop if maximum number of CPU instructions exceeded */
if (x86_emu_max_inst && x86_emu->inst_count >= x86_emu_max_inst)
esim_finish = esim_finish_x86_max_inst;
/* Stop if maximum number of cycles exceeded */
if (x86_emu_max_cycles && esim_cycle >= x86_emu_max_cycles)
esim_finish = esim_finish_x86_max_cycles;
/* Stop if any previous reason met */
if (esim_finish)
return 0;
/* Run an instruction from every running process */
for (ctx = x86_emu->running_list_head; ctx; ctx = ctx->running_list_next)
x86_ctx_execute(ctx);
/* Free finished contexts */
while (x86_emu->finished_list_head)
x86_ctx_free(x86_emu->finished_list_head);
/* Process list of suspended contexts */
x86_emu_process_events();
/* Return TRUE */
return 1;
}
/* Run one iteration of the x86 timing simulation loop.
* The function returns FALSE if there is no more simulation to perform. */
int x86_cpu_run(void)
{
/* Stop if no context is running */
if (x86_emu->finished_list_count >= x86_emu->context_list_count)
return 0;
/* Fast-forward simulation */
if (x86_cpu_fast_forward_count && x86_emu->inst_count < x86_cpu_fast_forward_count)
x86_cpu_run_fast_forward();
/* Stop if maximum number of CPU instructions exceeded */
if (x86_emu_max_inst && x86_cpu->num_committed_inst >= (x86_emu_max_inst - x86_cpu->num_fast_forward_inst))
esim_finish = esim_finish_x86_max_inst;
/* Stop if maximum number of cycles exceeded */
if (x86_emu_max_cycles && x86_cpu->cycle >= x86_emu_max_cycles)
esim_finish = esim_finish_x86_max_cycles;
/* Stop if any previous reason met */
if (esim_finish)
return 0;
/* One more cycle of x86 timing simulation */
x86_cpu->cycle++;
/* Empty uop trace list. This dumps the last trace line for instructions
* that were freed in the previous simulation cycle. */
x86_cpu_uop_trace_list_empty();
/* Processor stages */
x86_cpu_run_stages();
/* Process host threads generating events */
x86_emu_process_events();
/* Return TRUE */
return 1;
}
