Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-30 17:41:47 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Netlist: Some hand-crafted optimizations. GCC seems to like ugly pointer C more than using readable arrays :-( The speedup is noticeable.

Browse Source
This commit is contained in:
Couriersud 2013-10-28 21:27:47 +00:00
parent 539241d2e3
commit bac6bff9e6
2 changed files with 38 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/emu/machine/netlist.c
View File

@ -294,39 +294,11 @@ private:
};
// ----------------------------------------------------------------------------------------
// netlist_timed_queue
// ----------------------------------------------------------------------------------------
ATTR_HOT ATTR_ALIGN void netlist_timed_queue::push(const entry_t &e)
{
const netlist_time &t = e.time();
if (is_empty() || (t <= item(m_end - 1).time()))
{
set_item(m_end, e);
m_end++;
inc_stat(m_prof_end);
}
else
{
int i = m_end;
m_end++;
while ((i>0) && (t > item(i-1).time()) )
{
set_item(i, item(i-1));
inc_stat(m_prof_sortmove);
i--;
}
set_item(i, e);
inc_stat(m_prof_sort);
}
}
// ----------------------------------------------------------------------------------------
// netdev_mainclock
// ----------------------------------------------------------------------------------------
ATTR_HOT inline void netdev_mainclock::mc_update(net_output_t &Q, const netlist_time &curtime)
ATTR_HOT inline void netdev_mainclock::mc_update(net_output_t &Q, const netlist_time curtime)
{
Q.m_new_Q = !Q.m_new_Q;
Q.set_time(curtime);
@ -336,7 +308,6 @@ ATTR_HOT inline void netdev_mainclock::mc_update(net_output_t &Q, const netlist_
ATTR_COLD NETLIB_START(netdev_mainclock)
{
register_output("Q", m_Q);
//register_input("FB", m_feedback);
register_param("FREQ", m_freq, 7159000.0 * 5);
m_inc = netlist_time::from_hz(m_freq.Value()*2);
@ -520,7 +491,7 @@ ATTR_HOT ATTR_ALIGN void netlist_base_t::process_list(INT32 &atime)
{
while ( (atime > 0) && (m_queue.is_not_empty()))
{
const queue_t::entry_t &e = m_queue.pop();
const queue_t::entry_t e = m_queue.pop();
update_time(e.time(), atime);
if (FATAL_ERROR_AFTER_NS)
@ -548,21 +519,21 @@ ATTR_HOT ATTR_ALIGN void netlist_base_t::process_list(INT32 &atime)
{
if (m_queue.is_not_empty())
{
while (m_queue.peek().time() > m_mainclock->m_Q.time())
while (m_queue.peek().time() > mcQ.time())
{
update_time(m_mainclock->m_Q.time(), atime);
update_time(mcQ.time(), atime);
netdev_mainclock::mc_update(mcQ, time() + inc);
}
const queue_t::entry_t &e = m_queue.pop();
const queue_t::entry_t e = m_queue.pop();
update_time(e.time(), atime);
e.object().update_devs();
} else {
update_time(m_mainclock->m_Q.time(), atime);
update_time(mcQ.time(), atime);
netdev_mainclock::mc_update(mcQ, time() + inc);
}

46
src/emu/machine/netlist.h
View File

@ -365,25 +365,45 @@ public:
clear();
}
ATTR_HOT inline bool is_empty() const { return (m_end == 0); }
ATTR_HOT inline bool is_not_empty() const { return (m_end != 0); }
ATTR_HOT inline bool is_empty() const { return (m_end == &m_list[0]); }
ATTR_HOT inline bool is_not_empty() const { return (m_end > &m_list[0]); }
ATTR_HOT ATTR_ALIGN void push(const entry_t &e);
ATTR_HOT inline const entry_t &pop()
ATTR_HOT ATTR_ALIGN inline void push(const entry_t &e)
{
m_end--;
return item(m_end);
if (is_empty() || (e.time() <= (m_end - 1)->time()))
{
*m_end = e;
m_end++;
//inc_stat(m_prof_end);
}
else
{
entry_t *i = m_end++;
while ((i>&m_list[0]) && (e.time() > (i-1)->time()) )
{
i--;
*(i+1) = *i;
//inc_stat(m_prof_sortmove);
}
*i = e;
//inc_stat(m_prof_sort);
}
}
ATTR_HOT inline const entry_t &peek() const
ATTR_HOT inline const entry_t pop()
{
return item(m_end-1);
m_end--;
return *m_end;
}
ATTR_HOT inline const entry_t peek() const
{
return *(m_end-1);
}
ATTR_COLD void clear()
{
m_end = 0;
m_end = &m_list[0];
}
// profiling
@ -392,10 +412,8 @@ public:
INT32 m_prof_sortmove;
INT32 m_prof_sort;
private:
ATTR_HOT inline const entry_t &item(const UINT32 x) const { return m_list[x]; }
ATTR_HOT inline void set_item(const UINT32 x, const entry_t &aitem) { m_list[x] = aitem; }
UINT32 m_end;
entry_t *m_end;
entry_t m_list[SIZE + 1];
};
@ -1188,7 +1206,7 @@ NETLIB_DEVICE_WITH_PARAMS(netdev_mainclock,
net_param_t m_freq;
netlist_time m_inc;
ATTR_HOT inline static void mc_update(net_output_t &Q, const netlist_time &curtime);
ATTR_HOT inline static void mc_update(net_output_t &Q, const netlist_time curtime);
);
// ----------------------------------------------------------------------------------------