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wy100.cpp: Add PCI; improve banking (nw)

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This commit is contained in:
AJR 2018-08-23 21:25:34 -04:00
parent ff892bf9e3
commit b0ae30ee16
1 changed files with 61 additions and 7 deletions
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68
src/mame/drivers/wy100.cpp
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@ -12,6 +12,7 @@
#include "emu.h"
#include "cpu/mcs48/mcs48.h"
#include "machine/bankdev.h"
#include "machine/mc2661.h"
#include "video/i8275.h"
#include "screen.h"
@ -23,15 +24,25 @@ public:
, m_maincpu(*this, "maincpu")
, m_bankdev(*this, "bankdev")
, m_crtc(*this, "crtc%u", 1U)
, m_pci(*this, "pci")
, m_chargen(*this, "chargen")
{
}
void wy100(machine_config &config);
protected:
virtual void machine_start() override;
private:
I8275_DRAW_CHARACTER_MEMBER(draw_character);
DECLARE_WRITE8_MEMBER(crtc_w);
DECLARE_READ8_MEMBER(pci_r);
DECLARE_WRITE8_MEMBER(pci_w);
DECLARE_WRITE_LINE_MEMBER(rxrdy_w);
DECLARE_WRITE8_MEMBER(p2_w);
DECLARE_READ_LINE_MEMBER(t1_r);
void prg_map(address_map &map);
void io_map(address_map &map);
@ -40,19 +51,53 @@ private:
required_device<mcs48_cpu_device> m_maincpu;
required_device<address_map_bank_device> m_bankdev;
required_device_array<i8276_device, 2> m_crtc;
required_device<mc2661_device> m_pci;
required_region_ptr<u8> m_chargen;
bool m_rxrdy;
};
void wy100_state::machine_start()
{
m_rxrdy = false;
save_item(NAME(m_rxrdy));
}
I8275_DRAW_CHARACTER_MEMBER(wy100_state::draw_character)
{
}
WRITE8_MEMBER(wy100_state::crtc_w)
{
m_crtc[0]->write(space, offset >> 8, data);
m_crtc[1]->write(space, offset >> 8, data);
}
READ8_MEMBER(wy100_state::pci_r)
{
return m_pci->read(space, offset >> 8);
}
WRITE8_MEMBER(wy100_state::pci_w)
{
m_pci->write(space, offset >> 8, data);
}
WRITE_LINE_MEMBER(wy100_state::rxrdy_w)
{
m_rxrdy = state;
}
WRITE8_MEMBER(wy100_state::p2_w)
{
m_bankdev->set_bank(data & 0x1f);
m_bankdev->set_bank(data & 0x7f);
}
READ_LINE_MEMBER(wy100_state::t1_r)
{
return m_rxrdy;
}
void wy100_state::prg_map(address_map &map)
@ -67,8 +112,10 @@ void wy100_state::io_map(address_map &map)
void wy100_state::bank_map(address_map &map)
{
map(0x0000, 0x01ff).w(FUNC(wy100_state::crtc_w));
map(0x0c00, 0x1fff).ram();
map(0x0000, 0x0000).mirror(0x10ff).select(0x100).w(FUNC(wy100_state::crtc_w));
map(0x4000, 0x4000).mirror(0xff).nopw();
map(0x4c00, 0x5fff).ram();
map(0x6000, 0x63ff).rw(FUNC(wy100_state::pci_r), FUNC(wy100_state::pci_w));
}
@ -86,17 +133,24 @@ void wy100_state::wy100(machine_config &config)
ADDRESS_MAP_BANK(config, m_bankdev);
m_bankdev->set_addrmap(0, &wy100_state::bank_map);
m_bankdev->set_data_width(8);
m_bankdev->set_addr_width(13);
m_bankdev->set_addr_width(15);
m_bankdev->set_stride(0x100);
//SCN2651(config, "pci", 10.1376_MHz_XTAL / 2); // INS2651N
MC2661(config, m_pci, 10.1376_MHz_XTAL / 2); // INS2651N
m_pci->rxrdy_handler().set(FUNC(wy100_state::rxrdy_w));
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(18.48_MHz_XTAL, 1000, 0, 800, 308, 0, 286);
screen.set_screen_update("crtc1", FUNC(i8276_device::screen_update));
I8276(config, m_crtc[0], 18.48_MHz_XTAL / 10).set_character_width(10);
I8276(config, m_crtc[1], 18.48_MHz_XTAL / 10).set_character_width(10);
for (auto &crtc : m_crtc)
{
I8276(config, crtc, 18.48_MHz_XTAL / 10);
crtc->set_screen("screen");
crtc->set_character_width(10);
}
m_crtc[0]->set_display_callback(FUNC(wy100_state::draw_character), this);
//m_crtc[0]->vrtc_wr_callback().set_inputline(m_maincpu, MCS48_INPUT_IRQ);
}