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Diffstat (limited to 'src/mame/drivers/evmbug.c')
-rw-r--r--src/mame/drivers/evmbug.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/mame/drivers/evmbug.c b/src/mame/drivers/evmbug.c
new file mode 100644
index 00000000000..355eaca0769
--- /dev/null
+++ b/src/mame/drivers/evmbug.c
@@ -0,0 +1,117 @@
+// license:BSD-3-Clause
+// copyright-holders:Robbbert
+/***************************************************************************
+
+ Stuart's Breadboard Project. TMS9995 evaluation kit TMAM6095.
+
+ 2013-06-02 Skeleton driver.
+
+ http://www.avjd51.dsl.pipex.com/tms9995_eval_module/tms9995_eval_module.htm
+
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/tms9900/tms9995.h"
+#include "machine/terminal.h"
+
+#define TERMINAL_TAG "terminal"
+
+class evmbug_state : public driver_device
+{
+public:
+ evmbug_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_terminal(*this, TERMINAL_TAG)
+ {
+ }
+
+ DECLARE_READ8_MEMBER(rs232_r);
+ DECLARE_WRITE8_MEMBER(rs232_w);
+ DECLARE_WRITE8_MEMBER(kbd_put);
+ virtual void machine_reset();
+ UINT8 m_term_data;
+ UINT8 m_term_out;
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_terminal_device> m_terminal;
+};
+
+static ADDRESS_MAP_START( evmbug_mem, AS_PROGRAM, 8, evmbug_state )
+ AM_RANGE(0x0000, 0x17ff) AM_ROM
+ AM_RANGE(0xec00, 0xefff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( evmbug_io, AS_IO, 8, evmbug_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x0007) AM_WRITE(rs232_w)
+ AM_RANGE(0x0000, 0x0002) AM_READ(rs232_r)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( evmbug )
+INPUT_PORTS_END
+
+READ8_MEMBER( evmbug_state::rs232_r )
+{
+ static UINT8 temp = 0;
+ temp^=0xff;
+ if (offset == 1)
+ return temp;
+
+ if (offset == 2)
+ {
+ return 0xff;//(m_term_data) ? 0 : 0xff;
+ }
+
+ UINT8 ret = m_term_data;
+ m_term_data = 0;
+ return ret;
+}
+
+WRITE8_MEMBER( evmbug_state::rs232_w )
+{
+ if (offset == 0)
+ m_term_out = 0;
+
+ m_term_out |= (data << offset);
+
+ if (offset == 7)
+ m_terminal->write(space, 0, m_term_out & 0x7f);
+}
+
+WRITE8_MEMBER( evmbug_state::kbd_put )
+{
+ m_term_data = data;
+}
+
+void evmbug_state::machine_reset()
+{
+ m_term_data = 0;
+ // Disable auto wait state generation by raising the READY line on reset
+ static_cast<tms9995_device*>(machine().device("maincpu"))->set_ready(ASSERT_LINE);
+}
+
+static MACHINE_CONFIG_START( evmbug, evmbug_state )
+ // basic machine hardware
+ // TMS9995 CPU @ 12.0 MHz
+ // We have no lines connected yet
+ MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, evmbug_mem, evmbug_io )
+
+ /* video hardware */
+ MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
+ MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(evmbug_state, kbd_put))
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( evmbug )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+// ROM_LOAD( "u8.bin", 0x0000, 0x1000, CRC(bdb8c7bd) SHA1(340829dcb7a65f2e830fd5aff82a312e3ed7918f) )
+// ROM_LOAD( "u9.bin", 0x1000, 0x0800, CRC(4de459ea) SHA1(00a42fe556d4ffe1f85b2ce369f544b07fbd06d9) )
+ ROM_LOAD( "evmbug.bin", 0x0000, 0x8000, CRC(a239ec56) SHA1(65b500d7d0f897ce0c320cf3ec32ff4042774599) )
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 19??, evmbug, 0, 0, evmbug, evmbug, driver_device, 0, "Texas Instruments", "TMAM6095", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)