diff options
Diffstat (limited to 'src/mess/drivers/merlin.c')
-rw-r--r-- | src/mess/drivers/merlin.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/src/mess/drivers/merlin.c b/src/mess/drivers/merlin.c deleted file mode 100644 index f47dfd8ac66..00000000000 --- a/src/mess/drivers/merlin.c +++ /dev/null @@ -1,199 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Wilbert Pol, hap -/*************************************************************************** - - Parker Bros Merlin handheld computer game, by Bob Doyle - * TMS1100NLL MP3404A-N2 (has internal ROM) - - To start a game, press NEW GAME, followed by a number: - 1: Tic-Tac-Toe - 2: Music Machine - 3: Echo - 4: Blackjack 13 - 5: Magic Square - 6: Mindbender - - Refer to the official manual for more information on the games. - - - Other handhelds assumed to be on similar hardware: - - Dr. Smith - by Tomy, released in Japan (basically a white version of Merlin, - let's assume for now that the ROM contents is identical) - - Master Merlin - - -***************************************************************************/ - -#include "emu.h" -#include "cpu/tms0980/tms0980.h" -#include "sound/speaker.h" - -#include "merlin.lh" // clickable - -// master clock is a single stage RC oscillator: R=33K, C=100pf, -// according to the TMS 1000 series data manual this is around 350kHz -#define MASTER_CLOCK (350000) - - -class merlin_state : public driver_device -{ -public: - merlin_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_button_matrix(*this, "IN"), - m_speaker(*this, "speaker") - { } - - DECLARE_READ8_MEMBER(read_k); - DECLARE_WRITE16_MEMBER(write_o); - DECLARE_WRITE16_MEMBER(write_r); - - virtual void machine_start(); - -protected: - required_device<cpu_device> m_maincpu; - required_ioport_array<4> m_button_matrix; - required_device<speaker_sound_device> m_speaker; - - UINT16 m_o; -}; - - -/*************************************************************************** - - I/O - -***************************************************************************/ - -READ8_MEMBER(merlin_state::read_k) -{ - UINT8 k = 0; - - // read selected button rows - for (int i = 0; i < 4; i++) - if (m_o >> i & 1) - k |= m_button_matrix[i]->read(); - - return k; -} - -WRITE16_MEMBER(merlin_state::write_o) -{ - /* The speaker is connected to O4 through O6. The 3 outputs are paralleled for - increased current driving capability. They are passed thru a 220 ohm resistor - and then to the speaker, which has the other side grounded. The software then - toggles these lines to make sounds and noises. (There is no audio generator - other than toggling it with a software delay between to make tones). */ - static const int count[8] = { 0, 1, 1, 2, 1, 2, 2, 3 }; - m_speaker->level_w(count[data >> 4 & 7]); - - // O0-O3: input mux - // O7: N/C - m_o = data; -} - -WRITE16_MEMBER(merlin_state::write_r) -{ - /* LEDs: - - R0 - R1 R2 R3 - R4 R5 R6 - R7 R8 R9 - R10 - */ - for (int i = 0; i < 11; i++) - output_set_lamp_value(i, data >> i & 1); -} - - - -/*************************************************************************** - - Inputs - -***************************************************************************/ - -static INPUT_PORTS_START( merlin ) - PORT_START("IN.0") // O0 - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_0) PORT_CODE(KEYCODE_SLASH_PAD) PORT_NAME("Button 0") - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_7_PAD) PORT_NAME("Button 1") - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_9_PAD) PORT_NAME("Button 3") - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_8_PAD) PORT_NAME("Button 2") - - PORT_START("IN.1") // O1 - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Button 4") - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("Button 5") - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("Button 7") - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("Button 6") - - PORT_START("IN.2") // O2 - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("Button 8") - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_9) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Button 9") - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_S) PORT_NAME("Same Game") - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_MINUS) PORT_CODE(KEYCODE_0_PAD) PORT_NAME("Button 10") - - PORT_START("IN.3") // O3 - PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) - PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_C) PORT_NAME("Comp Turn") - PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_H) PORT_NAME("Hit Me") - PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) PORT_NAME("New Game") -INPUT_PORTS_END - - - -/*************************************************************************** - - Machine Config - -***************************************************************************/ - -void merlin_state::machine_start() -{ - m_o = 0; - save_item(NAME(m_o)); -} - -static const INT16 speaker_levels[] = { 0, 10922, 21845, 32767 }; - - -static MACHINE_CONFIG_START( merlin, merlin_state ) - - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", TMS1100, MASTER_CLOCK) - MCFG_TMS1XXX_READ_K_CB(READ8(merlin_state, read_k)) - MCFG_TMS1XXX_WRITE_O_CB(WRITE16(merlin_state, write_o)) - MCFG_TMS1XXX_WRITE_R_CB(WRITE16(merlin_state, write_r)) - - MCFG_DEFAULT_LAYOUT(layout_merlin) - - /* no video! */ - - /* sound hardware */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) - MCFG_SPEAKER_LEVELS(4, speaker_levels) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) -MACHINE_CONFIG_END - - - -/*************************************************************************** - - Game driver(s) - -***************************************************************************/ - -ROM_START( merlin ) - ROM_REGION( 0x800, "maincpu", 0 ) - ROM_LOAD( "mp3404", 0x0000, 0x800, CRC(7515a75d) SHA1(76ca3605d3fde1df62f79b9bb1f534c2a2ae0229) ) - - ROM_REGION( 867, "maincpu:mpla", 0 ) - ROM_LOAD( "tms1100_merlin_mpla.pla", 0, 867, CRC(03574895) SHA1(04407cabfb3adee2ee5e4218612cb06c12c540f4) ) - ROM_REGION( 365, "maincpu:opla", 0 ) - ROM_LOAD( "tms1100_merlin_opla.pla", 0, 365, CRC(3921b074) SHA1(12bd58e4d6676eb8c7059ef53598279e4f1a32ea) ) -ROM_END - - -CONS( 1978, merlin, 0, 0, merlin, merlin, driver_device, 0, "Parker Brothers", "Merlin", GAME_SUPPORTS_SAVE ) |