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(MESS) gb.c: Reduce tagmap lookups (nw)

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This commit is contained in:
Wilbert Pol 2013-02-14 20:07:15 +00:00
parent 347cb338f8
commit 82a539c656
2 changed files with 24 additions and 28 deletions
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12
src/mess/includes/gb.h
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@ -113,6 +113,7 @@ public:
: driver_device(mconfig, type, tag)
, m_cartslot(*this, "gbslot")
, m_maincpu(*this, "maincpu")
, m_custom(*this, "custom")
, m_region_maincpu(*this, "maincpu")
, m_rambank(*this, "cgb_ram")
, m_inputs(*this, "INPUTS")
@ -208,6 +209,7 @@ public:
protected:
required_device<lr35902_cpu_device> m_maincpu;
required_device<device_t> m_custom;
required_memory_region m_region_maincpu;
optional_memory_bank m_rambank; // cgb
required_ioport m_inputs;
@ -235,10 +237,8 @@ class megaduck_state : public gb_state
{
public:
megaduck_state(const machine_config &mconfig, device_type type, const char *tag)
: gb_state(mconfig, type, tag)
, m_cartslot(*this, "duckslot")
, m_maincpu(*this, "maincpu")
, m_inputs(*this, "INPUTS")
: gb_state(mconfig, type, tag)
, m_cartslot(*this, "duckslot")
{ }
DECLARE_READ8_MEMBER(megaduck_video_r);
@ -255,10 +255,6 @@ public:
DECLARE_WRITE8_MEMBER(bank1_w);
DECLARE_WRITE8_MEMBER(bank2_w);
optional_device<megaduck_cart_slot_device> m_cartslot;
protected:
required_device<lr35902_cpu_device> m_maincpu;
required_ioport m_inputs;
};

40
src/mess/machine/gb.c
View File

@ -149,7 +149,7 @@ void gb_state::gb_init()
{
address_space &space = m_maincpu->space(AS_PROGRAM);
gb_sound_w(machine().device("custom"), space, 0x16, 0x00); /* Initialize sound hardware */
gb_sound_w(m_custom, space, 0x16, 0x00); /* Initialize sound hardware */
m_divcount = 0;
m_triggering_irq = 0;
@ -244,9 +244,9 @@ MACHINE_RESET_MEMBER(gb_state,gbpocket)
m_bios_disable = TRUE;
/* Initialize the Sound registers */
gb_sound_w(machine().device("custom"), generic_space(), 0x16,0x80);
gb_sound_w(machine().device("custom"), generic_space(), 0x15,0xF3);
gb_sound_w(machine().device("custom"), generic_space(), 0x14,0x77);
gb_sound_w(m_custom, generic_space(), 0x16,0x80);
gb_sound_w(m_custom, generic_space(), 0x15,0xF3);
gb_sound_w(m_custom, generic_space(), 0x14,0x77);
m_divcount = 0xABC8;
}
@ -339,7 +339,7 @@ WRITE8_MEMBER(gb_state::gb_io_w)
break;
case 0x0F: /* IF - Interrupt flag */
data &= 0x1F;
machine().device<lr35902_cpu_device>(":maincpu")->set_if( data );
m_maincpu->set_if( data );
break;
}
@ -893,12 +893,12 @@ WRITE8_MEMBER(gb_state::sgb_io_w)
/* Interrupt Enable register */
READ8_MEMBER(gb_state::gb_ie_r)
{
return machine().device<lr35902_cpu_device>(":maincpu")->get_ie();
return m_maincpu->get_ie();
}
WRITE8_MEMBER(gb_state::gb_ie_w)
{
machine().device<lr35902_cpu_device>(":maincpu")->set_ie( data & 0x1F );
m_maincpu->set_ie( data & 0x1F );
}
/* IO read */
@ -918,7 +918,7 @@ READ8_MEMBER(gb_state::gb_io_r)
return m_gb_io[offset];
case 0x0F:
/* Make sure the internal states are up to date */
return 0xE0 | machine().device<lr35902_cpu_device>(":maincpu")->get_if();
return 0xE0 | m_maincpu->get_if();
default:
/* It seems unsupported registers return 0xFF */
return 0xFF;
@ -1003,7 +1003,7 @@ WRITE8_MEMBER(gb_state::gbc_io2_w)
switch( offset )
{
case 0x0D: /* KEY1 - Prepare speed switch */
machine().device<lr35902_cpu_device>(":maincpu")->set_speed(data);
m_maincpu->set_speed(data);
return;
case 0x10: /* BFF - Bios disable */
m_bios_disable = TRUE;
@ -1027,7 +1027,7 @@ READ8_MEMBER(gb_state::gbc_io2_r)
switch( offset )
{
case 0x0D: /* KEY1 */
return machine().device<lr35902_cpu_device>(":maincpu")->get_speed();
return m_maincpu->get_speed();
case 0x16: /* RP - Infrared port */
break;
case 0x30: /* SVBK - RAM bank select */
@ -1132,25 +1132,25 @@ static const UINT8 megaduck_sound_offsets[16] = { 0, 2, 1, 3, 4, 6, 5, 7, 8, 9,
WRITE8_MEMBER(megaduck_state::megaduck_sound_w1)
{
gb_sound_w(machine().device("custom"), space, megaduck_sound_offsets[offset], data );
gb_sound_w(m_custom, space, megaduck_sound_offsets[offset], data );
}
READ8_MEMBER(megaduck_state::megaduck_sound_r1)
{
return gb_sound_r( machine().device("custom"), space, megaduck_sound_offsets[offset] );
return gb_sound_r( m_custom, space, megaduck_sound_offsets[offset] );
}
WRITE8_MEMBER(megaduck_state::megaduck_sound_w2)
{
switch(offset)
{
case 0x00: gb_sound_w(machine().device("custom"), space, 0x10, data ); break;
case 0x01: gb_sound_w(machine().device("custom"), space, 0x12, data ); break;
case 0x02: gb_sound_w(machine().device("custom"), space, 0x11, data ); break;
case 0x03: gb_sound_w(machine().device("custom"), space, 0x13, data ); break;
case 0x04: gb_sound_w(machine().device("custom"), space, 0x14, data ); break;
case 0x05: gb_sound_w(machine().device("custom"), space, 0x16, data ); break;
case 0x06: gb_sound_w(machine().device("custom"), space, 0x15, data ); break;
case 0x00: gb_sound_w(m_custom, space, 0x10, data ); break;
case 0x01: gb_sound_w(m_custom, space, 0x12, data ); break;
case 0x02: gb_sound_w(m_custom, space, 0x11, data ); break;
case 0x03: gb_sound_w(m_custom, space, 0x13, data ); break;
case 0x04: gb_sound_w(m_custom, space, 0x14, data ); break;
case 0x05: gb_sound_w(m_custom, space, 0x16, data ); break;
case 0x06: gb_sound_w(m_custom, space, 0x15, data ); break;
case 0x07:
case 0x08:
case 0x09:
@ -1166,5 +1166,5 @@ WRITE8_MEMBER(megaduck_state::megaduck_sound_w2)
READ8_MEMBER(megaduck_state::megaduck_sound_r2)
{
return gb_sound_r(machine().device("custom"), space, 0x10 + megaduck_sound_offsets[offset]);
return gb_sound_r(m_custom, space, 0x10 + megaduck_sound_offsets[offset]);
}