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Revert part of 20b5f5d0e6

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This commit is contained in:
smf- 2018-07-29 15:54:34 +01:00
parent c295fc4daa
commit c41cf669b8
1 changed files with 25 additions and 26 deletions
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51
src/emu/schedule.cpp
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@ -452,12 +452,7 @@ void device_scheduler::timeslice()
{
// only process if this CPU is executing or truly halted (not yielding)
// and if our target is later than the CPU's current time (coarse check)
if (exec->m_suspend != 0)
{
if (exec->m_eatcycles)
exec->m_localtime = target;
}
else if (target.seconds() >= exec->m_localtime.seconds())
if (EXPECTED((exec->m_suspend == 0 || exec->m_eatcycles) && target.seconds() >= exec->m_localtime.seconds()))
{
// compute how many attoseconds to execute this CPU
attoseconds_t delta = target.attoseconds() - exec->m_localtime.attoseconds();
@ -472,28 +467,32 @@ void device_scheduler::timeslice()
int ran = exec->m_cycles_running = divu_64x32(u64(delta) >> exec->m_divshift, exec->m_divisor);
LOG((" cpu '%s': %d (%d cycles)\n", exec->device().tag(), delta, exec->m_cycles_running));
g_profiler.start(exec->m_profiler);
// note that this global variable cycles_stolen can be modified
// via the call to cpu_execute
exec->m_cycles_stolen = 0;
m_executing_device = exec;
*exec->m_icountptr = exec->m_cycles_running;
if (!call_debugger)
exec->run();
else
// if we're not suspended, actually execute
if (exec->m_suspend == 0)
{
exec->debugger_start_cpu_hook(target);
exec->run();
exec->debugger_stop_cpu_hook();
}
g_profiler.start(exec->m_profiler);
// adjust for any cycles we took back
assert(ran >= *exec->m_icountptr);
ran -= *exec->m_icountptr;
assert(ran >= exec->m_cycles_stolen);
ran -= exec->m_cycles_stolen;
g_profiler.stop();
// note that this global variable cycles_stolen can be modified
// via the call to cpu_execute
exec->m_cycles_stolen = 0;
m_executing_device = exec;
*exec->m_icountptr = exec->m_cycles_running;
if (!call_debugger)
exec->run();
else
{
exec->debugger_start_cpu_hook(target);
exec->run();
exec->debugger_stop_cpu_hook();
}
// adjust for any cycles we took back
assert(ran >= *exec->m_icountptr);
ran -= *exec->m_icountptr;
assert(ran >= exec->m_cycles_stolen);
ran -= exec->m_cycles_stolen;
g_profiler.stop();
}
// account for these cycles
exec->m_totalcycles += ran;