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quizo: Clean up VRAM banking and screen update, convert to RGB32

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This commit is contained in:
Dirk Best 2019-05-23 14:33:51 +02:00
parent 41e91c388a
commit 528da7f70d
1 changed files with 27 additions and 40 deletions
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67
src/mame/drivers/quizo.cpp
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@ -39,6 +39,8 @@ public:
quizo_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_palette(*this, "palette")
, m_vrambank(*this, "vram")
{ }
void quizo(machine_config &config);
@ -47,18 +49,18 @@ public:
private:
required_device<cpu_device> m_maincpu;
required_device<palette_device> m_palette;
required_memory_bank m_vrambank;
std::unique_ptr<uint8_t[]> m_videoram;
std::unique_ptr<uint8_t[]> m_vram;
uint8_t m_port60;
uint8_t m_port70;
DECLARE_WRITE8_MEMBER(vram_w);
DECLARE_WRITE8_MEMBER(port70_w);
DECLARE_WRITE8_MEMBER(vrambank_w);
DECLARE_WRITE8_MEMBER(port60_w);
void quizo_palette(palette_device &palette) const;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void memmap(address_map &map);
void portmap(address_map &map);
};
@ -96,44 +98,29 @@ void quizo_state::quizo_palette(palette_device &palette) const
}
}
uint32_t quizo_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
uint32_t quizo_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
for(int y = 0; y < 200; y++)
for (int y = 0; y < 200; y++)
{
for(int x = 0; x < 80; x++)
for (int x = 0; x < 80; x++)
{
int data=m_videoram[y*80+x];
int data1=m_videoram[y*80+x+0x4000];
int pix;
uint8_t data1 = m_vram[y * 80 + x];
uint8_t data2 = m_vram[y * 80 + x + 0x4000];
pix=(data&1)|(((data>>4)&1)<<1)|((data1&1)<<2)|(((data1>>4)&1)<<3);
bitmap.pix16(y, x*4+3) = pix;
data>>=1;
data1>>=1;
pix=(data&1)|(((data>>4)&1)<<1)|((data1&1)<<2)|(((data1>>4)&1)<<3);
bitmap.pix16(y, x*4+2) = pix;
data>>=1;
data1>>=1;
pix=(data&1)|(((data>>4)&1)<<1)|((data1&1)<<2)|(((data1>>4)&1)<<3);
bitmap.pix16(y, x*4+1) = pix;
data>>=1;
data1>>=1;
pix=(data&1)|(((data>>4)&1)<<1)|((data1&1)<<2)|(((data1>>4)&1)<<3);
bitmap.pix16(y, x*4+0) = pix;
// draw 4 pixels
bitmap.pix32(y, x * 4 + 0) = m_palette->pen((BIT(data2, 7) << 3) | (BIT(data2, 3) << 2) | (BIT(data1, 7) << 1) | BIT(data1, 3));
bitmap.pix32(y, x * 4 + 1) = m_palette->pen((BIT(data2, 6) << 3) | (BIT(data2, 2) << 2) | (BIT(data1, 6) << 1) | BIT(data1, 2));
bitmap.pix32(y, x * 4 + 2) = m_palette->pen((BIT(data2, 5) << 3) | (BIT(data2, 1) << 2) | (BIT(data1, 5) << 1) | BIT(data1, 1));
bitmap.pix32(y, x * 4 + 3) = m_palette->pen((BIT(data2, 4) << 3) | (BIT(data2, 0) << 2) | (BIT(data1, 4) << 1) | BIT(data1, 0));
}
}
return 0;
}
WRITE8_MEMBER(quizo_state::vram_w)
WRITE8_MEMBER(quizo_state::vrambank_w)
{
int bank=(m_port70&8)?1:0;
m_videoram[offset+bank*0x4000]=data;
}
WRITE8_MEMBER(quizo_state::port70_w)
{
m_port70=data;
m_vrambank->set_entry(BIT(data, 3));
}
WRITE8_MEMBER(quizo_state::port60_w)
@ -152,7 +139,7 @@ void quizo_state::memmap(address_map &map)
map(0x0000, 0x3fff).rom();
map(0x4000, 0x47ff).ram();
map(0x8000, 0xbfff).bankr("bank1");
map(0xc000, 0xffff).w(FUNC(quizo_state::vram_w));
map(0xc000, 0xffff).bankw("vram");
}
@ -164,7 +151,7 @@ void quizo_state::portmap(address_map &map)
map(0x40, 0x40).portr("IN2");
map(0x50, 0x51).w("aysnd", FUNC(ay8910_device::address_data_w));
map(0x60, 0x60).w(FUNC(quizo_state::port60_w));
map(0x70, 0x70).w(FUNC(quizo_state::port70_w));
map(0x70, 0x70).w(FUNC(quizo_state::vrambank_w));
}
static INPUT_PORTS_START( quizo )
@ -232,9 +219,8 @@ void quizo_state::quizo(machine_config &config)
screen.set_size(320, 200);
screen.set_visarea(0*8, 320-1, 0*8, 200-1);
screen.set_screen_update(FUNC(quizo_state::screen_update));
screen.set_palette("palette");
PALETTE(config, "palette", FUNC(quizo_state::quizo_palette), 16);
PALETTE(config, m_palette, FUNC(quizo_state::quizo_palette), 16);
/* sound hardware */
SPEAKER(config, "mono").front_center();
@ -275,12 +261,13 @@ ROM_END
void quizo_state::init_quizo()
{
m_videoram=std::make_unique<uint8_t[]>(0x4000*2);
membank("bank1")->configure_entries(0, 6, memregion("user1")->base(), 0x4000);
save_pointer(NAME(m_videoram), 0x4000*2);
m_vram = std::make_unique<uint8_t[]>(0x8000);
m_vrambank->configure_entries(0, 2, &m_vram[0], 0x4000);
save_pointer(NAME(m_vram), 0x8000);
//save_item(NAME(m_port60));
save_item(NAME(m_port70));
}
GAME( 1985, quizo, 0, quizo, quizo, quizo_state, init_quizo, ROT0, "Seoul Coin Corp.", "Quiz Olympic (set 1)", MACHINE_SUPPORTS_SAVE )