(mess) banctec: gfx layout for the R6545 character generator emulation

src/mess/drivers/banctec.c

@@ -1,52 +1,63 @@
 #include "emu.h"
 #include "cpu/m6805/m6805.h"
 #include "includes/banctec.h"
+#include "video/mc6845.h"
 
 static ADDRESS_MAP_START( banctec_mem , AS_PROGRAM, 8, banctec_state )
 	AM_RANGE(0x0000, 0x1fff) AM_ROM
+	AM_RANGE(0x2000, 0x7fff) AM_RAM /* Probably wrong. Must be verified on pcb! */
+	AM_RANGE(0x8000, 0xffff) AM_RAM AM_SHARE("videoram") /* Probably wrong. Must be verified on pcb! */
 ADDRESS_MAP_END
 
-#if 0
-static const gfx_layout banctec_charlayout =
-{
-		8,8,
-		256*8,                                    /* 256 characters */
-		1,                      /* 1 bits per pixel */
-		{ 0 },                  /* no bitplanes; 1 bit per pixel */
-		/* x offsets */
-		{
-			0,
-			1,
-			2,
-			3,
-			4,
-			5,
-			6,
-			7,
-		},
-		/* y offsets */
-		{
-			0,
-			8,
-			16,
-			24,
-			32,
-			40,
-			48,
-			56,
-		},
-		8*8
-};
-
-static GFXDECODE_START( banctec )
-	GFXDECODE_ENTRY( "gfx1", 0x0000, banctec_charlayout, 0, 2 )
-GFXDECODE_END
-#endif
-
 void banctec_state::machine_reset()
 {
 }
 
+
+/****************************
+* Video/Character functions *
+****************************/
+
+TILE_GET_INFO_MEMBER(banctec_state::get_bg_tile_info)
+{
+	UINT8 *videoram = m_videoram;
+	int code = videoram[tile_index];
+	int color = 1;
+
+	SET_TILE_INFO_MEMBER(0, code, color, 0);
+}
+
+void banctec_state::video_start()
+{
+	m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(banctec_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 40, 25);
+}
+
+UINT32 banctec_state::screen_update_banctec(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
+
+	return 0;
+}
+
+/******************************
+* Graphics Decode Information *
+******************************/
+
+const gfx_layout banctec_gfx_layout =
+{
+	8, 8,               /* 8x8 characters */
+	256,                /* 256 characters */
+	1,                  /* 1 bits per pixel */
+	{0},                /* no bitplanes; 1 bit per pixel */
+	{0, 1, 2, 3, 4, 5, 6, 7},
+	{0 * 256*8, 1 * 256*8, 2 * 256*8, 3 * 256*8, 4 * 256*8, 5 * 256*8, 6 * 256*8, 7 * 256*8},
+	8                 /* size of one char */
+};
+
+static GFXDECODE_START( banctec )
+			GFXDECODE_ENTRY( "gfx", 0x00000, banctec_gfx_layout, 0, 2 )
+GFXDECODE_END
+
 static MACHINE_CONFIG_START( banctec, banctec_state )
 	/* basic machine hardware */
 	MCFG_CPU_ADD("maincpu", M6805, 4000000)     /* 4000000? */
@@ -55,19 +66,21 @@ static MACHINE_CONFIG_START( banctec, banctec_state )
 // The video signal is generated by a R6545EAP character generator chip
 // The U20 EPROM holds the image data for the character set.
 
-#if 0
+	// video hardware
-	/* video hardware */
+	MCFG_SCREEN_ADD("screen", RASTER)
-	MCFG_SCREEN_ADD("screen", LCD)
+	MCFG_SCREEN_REFRESH_RATE(60)
-	MCFG_SCREEN_REFRESH_RATE(LCD_FRAMES_PER_SECOND)
+	MCFG_SCREEN_SIZE((52+1)*8, (31+1)*8)
-	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+	MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 0*8, 25*8-1)
-	MCFG_SCREEN_SIZE(64*4, 128) /* 160 x 102 */
-	MCFG_SCREEN_VISIBLE_AREA(0, 64*4-1, 0, 128-1)
 	MCFG_SCREEN_UPDATE_DRIVER(banctec_state, screen_update_banctec)
 	MCFG_SCREEN_PALETTE("palette")
 
-	MCFG_GFXDECODE_ADD("gfxdecode", "palette", banctec )
+	MCFG_GFXDECODE_ADD("gfxdecode", "palette", banctec)
-	MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
+	MCFG_PALETTE_ADD("palette", 2)
-#endif
+//	MCFG_PALETTE_INIT_OWNER(banctec_state, banctec)
+
+	MCFG_MC6845_ADD("crtc", R6545_1, "screen", XTAL_20MHz) /* (?) */
+	MCFG_MC6845_SHOW_BORDER_AREA(false)
+	MCFG_MC6845_CHAR_WIDTH(8)
 
 MACHINE_CONFIG_END
 
@@ -86,4 +99,4 @@ ROM_END
 ***************************************************************************/
 
 /*    YEAR  NAME      PARENT    COMPAT  MACHINE   INPUT     INIT    MONITOR COMPANY   FULLNAME */
-CONS( 1993, banctec, 0,        0,      banctec, 0, driver_device, 0,       "BancTec",  "ESeries Panel", GAME_NOT_WORKING | GAME_NO_SOUND)
+CONS( 1989, banctec, 0,        0,      banctec, 0, driver_device, 0,       "DALE Electronics",  "BancTec ESeries Panel", GAME_NOT_WORKING | GAME_NO_SOUND)

src/mess/includes/banctec.h

@@ -13,14 +13,22 @@ class banctec_state : public driver_device
 public:
 	banctec_state(const machine_config &mconfig, device_type type, const char *tag)
 		: driver_device(mconfig, type, tag),
-		m_maincpu(*this, "maincpu") { }
+		m_maincpu(*this, "maincpu"),
+		m_gfxdecode(*this, "gfxdecode"),
+		m_videoram(*this, "videoram") { }
 
 	DECLARE_READ8_MEMBER(banctec_read);
 	DECLARE_WRITE8_MEMBER(banctec_write);
+	TILE_GET_INFO_MEMBER(get_bg_tile_info);
 	virtual void machine_reset();
-//	virtual void video_start();
+	virtual void video_start();
-//	UINT32 screen_update_banctec(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+	UINT32 screen_update_banctec(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
 	required_device<cpu_device> m_maincpu;
+	required_device<gfxdecode_device> m_gfxdecode;
+	required_shared_ptr<UINT8> m_videoram;
+
+	tilemap_t *m_bg_tilemap;
 };
 
 #endif /* BANCTEC_H_ */