From b3720a2bf115ca7108d894d0ca738edf1d3e5ff4 Mon Sep 17 00:00:00 2001
From: angelosa <lordkale4@gmail.com>
Date: Sat, 18 Nov 2023 04:03:06 +0100
Subject: taito/dinoking.cpp: add basic hookups

---
 src/mame/taito/dinoking.cpp | 119 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 113 insertions(+), 6 deletions(-)

diff --git a/src/mame/taito/dinoking.cpp b/src/mame/taito/dinoking.cpp
index b1f49b912c0..25e8d535f84 100644
--- a/src/mame/taito/dinoking.cpp
+++ b/src/mame/taito/dinoking.cpp
@@ -3,6 +3,12 @@
 
 /*
 
+TODO:
+- irq 1
+- blitter transfers
+- i/o
+- hangs at PC=288c
+
 Taito mid-2000s medal hardware
 
 Currently two games are dumped:
@@ -18,11 +24,13 @@ XTALs: 20 MHz near CPU and sound chip, 25 MHz near video chip
 
 
 #include "emu.h"
-#include "screen.h"
-#include "speaker.h"
 #include "cpu/h8/h8s2357.h"
+#include "machine/timer.h"
 #include "sound/okim9810.h"
 
+#include "emupal.h"
+#include "screen.h"
+#include "speaker.h"
 
 namespace {
 
@@ -32,6 +40,8 @@ public:
 	dinoking_state(const machine_config &mconfig, device_type type, const char *tag)
 		: driver_device(mconfig, type, tag)
 		, m_maincpu(*this, "maincpu")
+		, m_screen(*this, "screen")
+		, m_palette(*this, "palette")
 	{
 	}
 
@@ -40,27 +50,124 @@ public:
 protected:
 
 private:
-	void mem_map(address_map &map);
-
 	required_device<cpu_device> m_maincpu;
+	required_device<screen_device> m_screen;
+	required_device<palette_device> m_palette;
+
+	u8 m_irq_cause = 0, m_irq_mask = 0;
+	void irq_check(u8 irq_type);
+	TIMER_DEVICE_CALLBACK_MEMBER(scanline);
+	void status_w(offs_t offset, u8 data);
+	u8 status_r(offs_t offset);
+
+	void mem_map(address_map &map);
+	u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
 };
 
+u32 dinoking_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	return 0;
+}
+
+u8 dinoking_state::status_r(offs_t offset)
+{
+	if (offset == 1)
+		return m_irq_cause;
+
+	return m_irq_mask;
+}
 
-void dinoking_state::mem_map(address_map &map)
+void dinoking_state::irq_check(u8 irq_type)
 {
-	map(0x000000, 0x1fffff).rom().region("maincpu", 0);
+	m_irq_cause |= irq_type;
+
+	if (m_irq_cause & m_irq_mask)
+		m_maincpu->set_input_line(1, ASSERT_LINE);
+	else
+		m_maincpu->set_input_line(1, CLEAR_LINE);
+}
+
+
+void dinoking_state::status_w(offs_t offset, u8 data)
+{
+	if (offset == 1)
+	{
+		m_irq_cause &= ~data;
+		irq_check(0);
+	}
+
+	if (offset == 0)
+	{
+		m_irq_mask = data;
+		irq_check(0);
+	}
 }
 
 
+void dinoking_state::mem_map(address_map &map)
+{
+	map.unmap_value_high();
+	map(0x000000, 0x1fffff).rom().region("maincpu", 0);
+	map(0x400000, 0x4fffff).ram();
+
+	map(0x61fcb8, 0x61fcb9).rw(FUNC(dinoking_state::status_r), FUNC(dinoking_state::status_w));
+	map(0x61fcd2, 0x61fcd3).lrw8(
+		NAME([] () {
+			// read in irq service 0x4, blitter status?
+			return 0;
+		}),
+		NAME([this] (offs_t offset, u8 data) {
+			// blitter irq, after some time PC=4ce
+			if (offset && data == 8)
+				irq_check(0x04);
+		})
+	);
+
+	map(0x800001, 0x800001).w("oki", FUNC(okim9810_device::tmp_register_w));
+	map(0x800000, 0x800000).w("oki", FUNC(okim9810_device::write));
+	map(0x800002, 0x800002).r("oki", FUNC(okim9810_device::read));
+
+}
 
 static INPUT_PORTS_START( dinoking )
 INPUT_PORTS_END
 
+TIMER_DEVICE_CALLBACK_MEMBER(dinoking_state::scanline)
+{
+	int scanline = param;
+
+	if (scanline == 240)
+	{
+		// checked bits in irq service = 0x3e
+		// bit 5 has no meaning, just clears in service.
+		irq_check(0x10);
+	}
+}
+
+
 
 void dinoking_state::dinoking(machine_config &config)
 {
 	H8S2394(config, m_maincpu, 20_MHz_XTAL);
 	m_maincpu->set_addrmap(AS_PROGRAM, &dinoking_state::mem_map);
+	TIMER(config, "scantimer").configure_scanline(FUNC(dinoking_state::scanline), "screen", 0, 1);
+
+	SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
+	m_screen->set_refresh_hz(60);
+	m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(0));
+	m_screen->set_size(32*8, 32*8);
+	m_screen->set_visarea(0*8, 32*8-1, 2*8, 30*8-1);
+	m_screen->set_screen_update(FUNC(dinoking_state::screen_update));
+	m_screen->set_palette(m_palette);
+
+	PALETTE(config, m_palette, palette_device::RGB_555);
+
+	SPEAKER(config, "lspeaker").front_left();
+	SPEAKER(config, "rspeaker").front_right();
+
+	okim9810_device &oki(OKIM9810(config, "oki", XTAL(4'096'000)));
+	oki.add_route(0, "lspeaker", 0.80);
+	oki.add_route(1, "rspeaker", 0.80);
 }
 
 
-- 
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