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#include "gdbcomm.h"

#include "sched.h"

#include "vapi.h"

void exec_main(void)

{

  long long time_start;

  while(1) {

    time_start = runtime.sim.cycles;

    if (config.debug.enabled) {

      du_clock(); // reset watchpoints

      while (runtime.cpu.stalled) {

        if(config.debug.gdb_enabled) {

          BlockJTAG();

          HandleServerSocket(false);

        } else {

          fprintf (stderr, "WARNING: CPU stalled and gdb connection not enabled.\n");

          /* Dump the user into interactive mode.  From there he can decide what

           * to do. */

          handle_sim_command();

          sim_done();

        }

        if(runtime.sim.iprompt)

          handle_sim_command();

      }

    }

    /* Each cycle has counter of mem_cycles; this value is joined with cycles

       at the end of the cycle; no sim originated memory accesses should be

       performed inbetween. */

    runtime.sim.mem_cycles = 0;

    if (!config.pm.enabled ||

        !(cpu_state.sprs[SPR_PMR] & (SPR_PMR_DME | SPR_PMR_SME)))

      if (cpu_clock ())

        /* A breakpoint has been hit, drop to interactive mode */

        handle_sim_command();

    if (config.vapi.enabled && runtime.vapi.enabled) vapi_check();

    if (config.debug.gdb_enabled) HandleServerSocket(false); /* block & check_stdin = false */

    if(config.debug.enabled)

      if (cpu_state.sprs[SPR_DMR1] & SPR_DMR1_ST) set_stall_state (1);

    runtime.sim.cycles += runtime.sim.mem_cycles;

    scheduler.job_queue->time -= runtime.sim.cycles - time_start;

    if (scheduler.job_queue->time <= 0) do_scheduler ();

  }

}