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Little cleanup (nw)

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This commit is contained in:
Miodrag Milanovic 2012-05-16 09:42:38 +00:00
parent 1fa26eac08
commit a16c2889c3
1 changed files with 3 additions and 25 deletions
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28
src/emu/ioport.c
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@ -251,7 +251,6 @@ public:
// read/write
void read(ioport_value &result);
void write(ioport_value newval);
void port_changed_write(ioport_value newval);
private:
// internal state
@ -2456,7 +2455,7 @@ void ioport_port::write(ioport_value data, ioport_value mem_mask)
COMBINE_DATA(&m_live->outputvalue);
for (dynamic_field *dynfield = m_live->writelist.first(); dynfield != NULL; dynfield = dynfield->next())
if (dynfield->field().type() == IPT_OUTPUT)
dynfield->write(m_live->outputvalue);
dynfield->write(m_live->outputvalue ^ dynfield->field().defvalue());
}
@ -2480,7 +2479,7 @@ void ioport_port::frame_update(ioport_field *mouse_field)
ioport_value newvalue = read();
for (dynamic_field *dynfield = m_live->writelist.first(); dynfield != NULL; dynfield = dynfield->next())
if (dynfield->field().type() != IPT_OUTPUT)
dynfield->port_changed_write(newvalue);
dynfield->write(newvalue);
}
@ -3991,28 +3990,6 @@ void dynamic_field::read(ioport_value &result)
//-------------------------------------------------
void dynamic_field::write(ioport_value newval)
{
// skip if not enabled
if (!m_field.enabled())
return;
// if the bits have changed, call the handler
newval = ((newval ^ m_field.defvalue()) & m_field.mask()) >> m_shift;
if (m_oldval != newval)
{
m_field.m_write(m_field, m_field.m_write_param, m_oldval, newval);
m_oldval = newval;
}
}
//-------------------------------------------------
// port_changed_write - track a change to a value
// of port changed and call the write callback
// if there's something new
//-------------------------------------------------
void dynamic_field::port_changed_write(ioport_value newval)
{
// skip if not enabled
if (!m_field.enabled())
@ -4027,6 +4004,7 @@ void dynamic_field::port_changed_write(ioport_value newval)
}
}
//-------------------------------------------------
// analog_field - constructor
//-------------------------------------------------