From ca312bf6ea0204332e147a66d31e5c0346122138 Mon Sep 17 00:00:00 2001
From: Ivan Vangelista <mesgnet@yahoo.it>
Date: Tue, 1 Oct 2024 22:46:40 +0200
Subject: hash/a2600.xml: removed unkact2 as it's identical to hardhead

---
 hash/a2600.xml                | 11 -----------
 src/mame/skeleton/whtm68k.cpp | 21 ++++++++++++++++++++-
 2 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/hash/a2600.xml b/hash/a2600.xml
index 182cd9540ea..f1c66a274a4 100644
--- a/hash/a2600.xml
+++ b/hash/a2600.xml
@@ -17742,17 +17742,6 @@ MOS Atari-made game NTSC ROMs had a CO16xxx number and PAL ROMs had CO17xxx numb
 		</part>
 	</software>
 
-	<software name="unkact2">
-		<description>Unknown Activision Game #2 (prototype)</description>
-		<year>1983</year>
-		<publisher>Activision</publisher>
-		<part name="cart" interface="a2600_cart">
-			<dataarea name="rom" size="4096">
-				<rom name="unknown activision game #2 (1983) (activision) (prototype).bin" size="4096" crc="5c009ea0" sha1="a25c4b33e1c86895cb63635bd6ca5b8379a206b3"/>
-			</dataarea>
-		</part>
-	</software>
-
 	<software name="unkuniv">
 		<description>Unknown Universal Game (prototype)</description>
 		<year>1983</year>
diff --git a/src/mame/skeleton/whtm68k.cpp b/src/mame/skeleton/whtm68k.cpp
index f923ad82c06..858b80fb367 100644
--- a/src/mame/skeleton/whtm68k.cpp
+++ b/src/mame/skeleton/whtm68k.cpp
@@ -41,6 +41,7 @@ TODO:
 #include "cpu/mcs51/mcs51.h"
 #include "machine/gen_latch.h"
 #include "machine/nvram.h"
+#include "machine/timer.h"
 #include "sound/okim6295.h"
 #include "sound/ymopl.h"
 #include "video/mc6845.h"
@@ -70,6 +71,7 @@ public:
 	whtm68k_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_gfxdecode(*this, "gfxdecode"),
 		m_bgram(*this, "bgram"),
 		m_fgram(*this, "fgram")
@@ -82,13 +84,17 @@ protected:
 
 private:
 	required_device<cpu_device> m_maincpu;
+	required_device<screen_device> m_screen;
 	required_device<gfxdecode_device> m_gfxdecode;
+
 	required_shared_ptr<uint16_t> m_bgram;
 	required_shared_ptr<uint16_t> m_fgram;
 
 	tilemap_t *m_bg_tilemap = nullptr;
 	tilemap_t *m_fg_tilemap = nullptr;
 
+	TIMER_DEVICE_CALLBACK_MEMBER(scanline_cb);
+
 	TILE_GET_INFO_MEMBER(get_bg_tile_info);
 	TILE_GET_INFO_MEMBER(get_fg_tile_info);
 	void bgram_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
@@ -103,6 +109,18 @@ private:
 };
 
 
+TIMER_DEVICE_CALLBACK_MEMBER(whtm68k_state::scanline_cb)
+{
+	int const scanline = param;
+
+	if (scanline == 256)
+		m_maincpu->set_input_line(3, HOLD_LINE);
+
+	if (scanline == 0)
+		m_maincpu->set_input_line(1, HOLD_LINE);
+}
+
+
 void whtm68k_state::video_start()
 {
 	m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(whtm68k_state::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64);
@@ -270,7 +288,8 @@ void whtm68k_state::unkwht(machine_config &config)
 	// basic machine hardware
 	M68000(config, m_maincpu, 24_MHz_XTAL / 2);
 	m_maincpu->set_addrmap(AS_PROGRAM, &whtm68k_state::main_program_map);
-	m_maincpu->set_vblank_int("screen", FUNC(whtm68k_state::irq1_line_hold));
+
+	TIMER(config, "scantimer").configure_scanline(FUNC(whtm68k_state::scanline_cb), "screen", 0, 1);
 
 	i80c32_device &audiocpu(I80C32(config, "audiocpu", 12_MHz_XTAL));
 	audiocpu.set_addrmap(AS_PROGRAM, &whtm68k_state::audio_program_map);
-- 
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