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author AJR <ajrhacker@users.noreply.github.com>2018-11-10 14:47:55 -0500
committer AJR <ajrhacker@users.noreply.github.com>2018-11-10 14:47:55 -0500
commitb1c292726bd7afb1d1ebc29058d45ffa60650917 (patch)
tree983fbf5d1eb7e32026a9a9b325a5eec909f088ba
parent50b50a818fcad0c72387ec276dea493a9ca78f65 (diff)
falco5220: Add ROM bank switch; correct clocks (nw)
-rw-r--r--src/mame/drivers/falco5220.cpp36
1 files changed, 27 insertions, 9 deletions
diff --git a/src/mame/drivers/falco5220.cpp b/src/mame/drivers/falco5220.cpp
index 68a36c6b733..5ae9384cd22 100644
--- a/src/mame/drivers/falco5220.cpp
+++ b/src/mame/drivers/falco5220.cpp
@@ -27,7 +27,6 @@
#include "emu.h"
//#include "bus/rs232/rs232.h"
#include "cpu/z80/z80.h"
-#include "machine/clock.h"
#include "machine/nvram.h"
#include "machine/z80ctc.h"
#include "machine/z80sio.h"
@@ -40,6 +39,7 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_screen(*this, "screen")
+ , m_rombank(*this, "rombank")
{
}
@@ -47,16 +47,20 @@ public:
protected:
virtual void machine_start() override;
+ virtual void machine_reset() override;
private:
u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+ void rombank_w(u8 data);
+
void mem_map(address_map &map);
void io_map(address_map &map);
required_device<z80_device> m_maincpu;
required_device<screen_device> m_screen;
+ required_memory_bank m_rombank;
//required_shared_ptr<u8> m_cram; // 1x or 2x NEC D43256C-10L
//required_shared_ptr<u8> m_aram; // 1x or 2x NEC D43256C-10L
};
@@ -66,9 +70,15 @@ u32 falco5220_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
return 0;
}
+void falco5220_state::rombank_w(u8 data)
+{
+ m_rombank->set_entry(data & 3);
+}
+
void falco5220_state::mem_map(address_map &map)
{
- map(0x0000, 0xbfff).rom().region("roms", 0);
+ map(0x0000, 0x7fff).rom().region("roms", 0);
+ map(0x8000, 0xbfff).bankr("rombank");
map(0xc000, 0xdfff).ram().share("nvram");
map(0xe000, 0xffff).ram();
}
@@ -76,12 +86,21 @@ void falco5220_state::mem_map(address_map &map)
void falco5220_state::io_map(address_map &map)
{
map.global_mask(0xff);
+ map(0x00, 0x00).w(FUNC(falco5220_state::rombank_w));
map(0x60, 0x63).rw("sio", FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
map(0x70, 0x73).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
+ map(0x88, 0x8b).nopw(); // second SIO?
+ map(0x90, 0x93).nopw(); // second CTC?
}
void falco5220_state::machine_start()
{
+ m_rombank->configure_entries(0, 4, memregion("roms")->base(), 0x4000);
+}
+
+void falco5220_state::machine_reset()
+{
+ m_rombank->set_entry(0);
}
static INPUT_PORTS_START(falco5220)
@@ -96,20 +115,19 @@ static const z80_daisy_config daisy_chain[] =
void falco5220_state::falco5220(machine_config &config)
{
- Z80(config, m_maincpu, 37.98_MHz_XTAL / 8); // Z0840006PSC; clock unverified
+ Z80(config, m_maincpu, 12.288_MHz_XTAL / 2); // Z0840006PSC
m_maincpu->set_addrmap(AS_PROGRAM, &falco5220_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &falco5220_state::io_map);
m_maincpu->set_daisy_config(daisy_chain);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // CXK5864AP-10L + battery
- z80ctc_device &ctc(Z80CTC(config, "ctc", 37.98_MHz_XTAL / 8)); // Z0843006PSC
+ z80ctc_device &ctc(Z80CTC(config, "ctc", 12.288_MHz_XTAL / 2)); // Z0843006PSC
+ ctc.set_clk<0>(12.288_MHz_XTAL / 10);
+ ctc.set_clk<1>(12.288_MHz_XTAL / 10);
ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
- clock_device &baudclk(CLOCK(config, "baudclk", 12.288_MHz_XTAL / 5));
- (void)baudclk;
-
- z80sio_device &sio(Z80SIO(config, "sio", 37.98_MHz_XTAL / 8)); // Z0844006PSC
+ z80sio_device &sio(Z80SIO(config, "sio", 12.288_MHz_XTAL / 2)); // Z0844006PSC
sio.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
@@ -118,7 +136,7 @@ void falco5220_state::falco5220(machine_config &config)
}
ROM_START(falco5220)
- ROM_REGION(0x10000, "roms", 0 )
+ ROM_REGION(0x10000, "roms", 0)
ROM_LOAD("152321-000.bin", 0x0000, 0x8000, CRC(45ef4a68) SHA1(71e12dce710f9b66290618e299b2382834845057))
ROM_LOAD("152321-001.bin", 0x8000, 0x8000, CRC(91056626) SHA1(217ca3de76d5e9861284f5b64f8eff8e541fad3d))
ROM_END