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ssystem3.c: reduce tagmap lookups (nw)

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This commit is contained in:
Wilbert Pol 2015-08-01 13:42:32 +02:00
parent e225cdbdd1
commit 1a8d3bba54
3 changed files with 36 additions and 28 deletions
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32
src/mess/drivers/ssystem3.c
View File

@ -38,7 +38,6 @@ backup of playfield rom and picture/description of its board
#include "emu.h"
#include "includes/ssystem3.h"
#include "machine/6522via.h"
#include "cpu/m6502/m6502.h"
#include "sound/dac.h"
@ -60,7 +59,7 @@ void ssystem3_state::ssystem3_playfield_reset()
{
memset(&m_playfield, 0, sizeof(m_playfield));
m_playfield.signal=FALSE;
// m_playfield.on=TRUE; //ioport("Configuration")->read()&1;
// m_playfield.on=TRUE; //m_configuration->read()&1;
}
void ssystem3_state::ssystem3_playfield_write(int reset, int signal)
@ -91,7 +90,7 @@ void ssystem3_state::ssystem3_playfield_write(int reset, int signal)
if (d) m_playfield.data|=1<<(m_playfield.bit^7);
m_playfield.bit++;
if (m_playfield.bit==8) {
logerror("%.4x playfield wrote %d %02x\n", (int)machine().device("maincpu")->safe_pc(), m_playfield.count, m_playfield.data);
logerror("%.4x playfield wrote %d %02x\n", (int)m_maincpu->pc(), m_playfield.count, m_playfield.data);
m_playfield.u.data[m_playfield.count]=m_playfield.data;
m_playfield.bit=0;
m_playfield.count=(m_playfield.count+1)%ARRAY_LENGTH(m_playfield.u.data);
@ -110,7 +109,7 @@ void ssystem3_state::ssystem3_playfield_write(int reset, int signal)
void ssystem3_state::ssystem3_playfield_read(int *on, int *ready)
{
*on=!(ioport("Configuration")->read()&1);
*on = !(m_configuration->read() & 1);
// *on=!m_playfield.on;
*ready=FALSE;
}
@ -197,22 +196,21 @@ READ8_MEMBER(ssystem3_state::ssystem3_via_read_b)
WRITE8_MEMBER(ssystem3_state::ssystem3_via_write_b)
{
ssystem3_playfield_write(data&1, data&8);
ssystem3_lcd_write(data&4, data&2);
ssystem3_playfield_write(data & 1, data & 8);
ssystem3_lcd_write(data & 4, data & 2);
// TODO: figure out what this is trying to achieve
via6522_device *via_0 = machine().device<via6522_device>("via6522_0");
UINT8 d=ssystem3_via_read_b(space, 0, mem_mask)&~0x40;
if (data&0x80) d|=0x40;
UINT8 d = ssystem3_via_read_b(space, 0, mem_mask) & ~0x40;
if (data & 0x80) d |= 0x40;
// d&=~0x8f;
via_0->write_pb0((d>>0)&1);
via_0->write_pb1((d>>1)&1);
via_0->write_pb2((d>>2)&1);
via_0->write_pb3((d>>3)&1);
via_0->write_pb4((d>>4)&1);
via_0->write_pb5((d>>5)&1);
via_0->write_pb6((d>>6)&1);
via_0->write_pb7((d>>7)&1);
m_via6522_0->write_pb0((d >> 0) & 1);
m_via6522_0->write_pb1((d >> 1) & 1);
m_via6522_0->write_pb2((d >> 2) & 1);
m_via6522_0->write_pb3((d >> 3) & 1);
m_via6522_0->write_pb4((d >> 4) & 1);
m_via6522_0->write_pb5((d >> 5) & 1);
m_via6522_0->write_pb6((d >> 6) & 1);
m_via6522_0->write_pb7((d >> 7) & 1);
}
DRIVER_INIT_MEMBER(ssystem3_state,ssystem3)

28
src/mess/includes/ssystem3.h
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@ -9,6 +9,8 @@
#ifndef SSYSTEM3_H_
#define SSYSTEM3_H_
#include "machine/6522via.h"
struct playfield_t
{
@ -40,14 +42,13 @@ class ssystem3_state : public driver_device
{
public:
ssystem3_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_palette(*this, "palette") { }
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_palette(*this, "palette")
, m_via6522_0(*this, "via6522_0")
, m_configuration(*this, "Configuration")
{ }
UINT8 m_porta;
UINT8 *m_videoram;
playfield_t m_playfield;
lcd_t m_lcd;
DECLARE_DRIVER_INIT(ssystem3);
virtual void video_start();
DECLARE_PALETTE_INIT(ssystem3);
@ -56,8 +57,6 @@ public:
DECLARE_READ8_MEMBER(ssystem3_via_read_a);
DECLARE_READ8_MEMBER(ssystem3_via_read_b);
DECLARE_WRITE8_MEMBER(ssystem3_via_write_b);
required_device<cpu_device> m_maincpu;
required_device<palette_device> m_palette;
void ssystem3_lcd_reset();
void ssystem3_lcd_write(int clock, int data);
void ssystem3_draw_7segment(bitmap_ind16 &bitmap,int value, int x, int y);
@ -66,6 +65,17 @@ public:
void ssystem3_playfield_reset();
void ssystem3_playfield_write(int reset, int signal);
void ssystem3_playfield_read(int *on, int *ready);
private:
UINT8 m_porta;
UINT8 *m_videoram;
playfield_t m_playfield;
lcd_t m_lcd;
required_device<cpu_device> m_maincpu;
required_device<palette_device> m_palette;
required_device<via6522_device> m_via6522_0;
required_ioport m_configuration;
};

4
src/mess/video/ssystem3.c
View File

@ -18,7 +18,7 @@ void ssystem3_state::ssystem3_lcd_write(int clock, int data)
m_lcd.data[m_lcd.count/8]&=~(1<<(m_lcd.count&7));
if (data) m_lcd.data[m_lcd.count/8]|=1<<(m_lcd.count&7);
if (m_lcd.count+1==40) {
logerror("%.4x lcd %02x%02x%02x%02x%02x\n",(int)machine().device("maincpu")->safe_pc(),
logerror("%.4x lcd %02x%02x%02x%02x%02x\n",(int)m_maincpu->pc(),
m_lcd.data[0], m_lcd.data[1], m_lcd.data[2], m_lcd.data[3], m_lcd.data[4]);
}
m_lcd.count=(m_lcd.count+1)%40;
@ -204,7 +204,7 @@ UINT32 ssystem3_state::screen_update_ssystem3(screen_device &screen, bitmap_ind1
ssystem3_draw_led(bitmap, m_lcd.data[3]&1?1:0, ssystem3_led_pos[4].x, ssystem3_led_pos[4].y, '3');
ssystem3_draw_led(bitmap, m_lcd.data[4]&1?1:0, ssystem3_led_pos[4].x, ssystem3_led_pos[4].y, '4');
if (ioport("Configuration")->read()&1) { // playfield(optional device)
if (m_configuration->read() & 1) { // playfield(optional device)
static const int lcd_signs_on[]={
0, // empty
1, // bauer