diff options
Diffstat (limited to 'src/mame/drivers/cortex.cpp')
-rw-r--r-- | src/mame/drivers/cortex.cpp | 195 |
1 files changed, 43 insertions, 152 deletions
diff --git a/src/mame/drivers/cortex.cpp b/src/mame/drivers/cortex.cpp index 6281b1e88aa..c4e87619bd7 100644 --- a/src/mame/drivers/cortex.cpp +++ b/src/mame/drivers/cortex.cpp @@ -2,45 +2,23 @@ // copyright-holders:Robbbert /*************************************************************************** -Powertran Cortex + Powertran Cortex -2012-04-20 Skeleton driver. + 2012-04-20 Skeleton driver. -ftp://ftp.whtech.com/Powertran Cortex/ -http://www.powertrancortex.com/index.html + ftp://ftp.whtech.com/Powertran Cortex/ + http://www.powertrancortex.com/index.html -Uses Texas Instruments parts and similar to other TI computers. -It was designed by TI engineers, so it may perhaps be a clone -of another TI or the Geneve. + Uses Texas Instruments parts and similar to other TI computers. + It was designed by TI engineers, so it may perhaps be a clone + of another TI or the Geneve. -Chips: -TMS9995 - CPU -TMS9929 - Video -TMS9911 - DMA to floppy (unemulated device) -TMS9909 - Floppy Disk Controller (unemulated device) -TMS9902 - UART (x2) (device not usable with rs232.h) -AY-5-2376 - Keyboard controller - -All input to be in uppercase. Note that "lowercase" is just smaller uppercase, -and is not acceptable as input. - -There's no option in BASIC to produce sound. It will beep if an invalid key -(usually a control key) is pressed. - -To clear the screen press Ctrl L. - -ToDo: -- Unemulated devices -- Cassette -- Keyboard to use AY device -- Memory mapping unit (74LS610) -- Various CRU I/O - -Note that the MAME implementation of CRU addresses is not the same as real -hardware. For writing, MAME uses the correct address (R12/2 + offset), with -the bit (0 or 1), being in 'data'. However, for reading, 8 CRU bits are -packed into a single address-byte (CRU 0 = bit 0, etc). So the address is -(R12/2 + offset) >> 3. + Chips: + TMS9995 - CPU + TMS9929 - Video + TMS9911 - DMA to floppy + TMS9909 - Floppy Disk Controller + AY-5-2376 - Keyboard controller ****************************************************************************/ @@ -49,10 +27,6 @@ packed into a single address-byte (CRU 0 = bit 0, etc). So the address is #include "cpu/tms9900/tms9995.h" #include "machine/74259.h" #include "video/tms9928a.h" -//#include "machine/tms9902.h" -#include "machine/keyboard.h" -#include "sound/beep.h" -#include "speaker.h" class cortex_state : public driver_device { @@ -60,168 +34,85 @@ public: cortex_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") - , m_beep(*this, "beeper") - , m_io_dsw(*this, "DSW") + , m_p_ram(*this, "ram") { } - void kbd_put(u8 data); - DECLARE_WRITE_LINE_MEMBER(keyboard_ack_w); - DECLARE_WRITE_LINE_MEMBER(romsw_w); - DECLARE_WRITE_LINE_MEMBER(vdp_int_w); - DECLARE_READ8_MEMBER(pio_r); - DECLARE_READ8_MEMBER(keyboard_r); - DECLARE_DRIVER_INIT(init); - private: - bool m_kbd_ack; - bool m_vdp_int; - uint8_t m_term_data; virtual void machine_reset() override; required_device<tms9995_device> m_maincpu; - required_device<beep_device> m_beep; - required_ioport m_io_dsw; + required_shared_ptr<uint8_t> m_p_ram; }; static ADDRESS_MAP_START( mem_map, AS_PROGRAM, 8, cortex_state ) - AM_RANGE(0x0000, 0x7fff) AM_READ_BANK("bankr0") AM_WRITE_BANK("bankw0") - AM_RANGE(0x8000, 0xefff) AM_RAM + AM_RANGE(0x0000, 0xefff) AM_RAM AM_SHARE("ram") AM_RANGE(0xf100, 0xf11f) AM_RAM // memory mapping unit - AM_RANGE(0xf120, 0xf120) AM_DEVREADWRITE("crtc", tms9928a_device, vram_read, vram_write) - AM_RANGE(0xf121, 0xf121) AM_DEVREADWRITE("crtc", tms9928a_device, register_read, register_write) + AM_RANGE(0xf120, 0xf120) AM_DEVREADWRITE("tms9928a", tms9928a_device, vram_read, vram_write) + AM_RANGE(0xf121, 0xf121) AM_DEVREADWRITE("tms9928a", tms9928a_device, register_read, register_write) //AM_RANGE(0xf140, 0xf147) // fdc tms9909 ADDRESS_MAP_END static ADDRESS_MAP_START( io_map, AS_IO, 8, cortex_state ) ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x0000, 0x0007) AM_MIRROR(0x18) AM_DEVWRITE("control", ls259_device, write_d0) - AM_RANGE(0x0000, 0x0000) AM_READ(pio_r) - AM_RANGE(0x0001, 0x0001) AM_READ(keyboard_r) - //AM_RANGE(0x0040, 0x005f) AM_DEVWRITE("uart1", tms9902_device, cruwrite) // RS232 (r12 = 80-bf) - //AM_RANGE(0x0008, 0x000b) AM_DEVREAD("uart1", tms9902_device, cruread) // RS232 - //AM_RANGE(0x00c0, 0x00df) AM_DEVWRITE("uart2", tms9902_device, cruwrite) // Cassette (r12 = 180-1bf) - //AM_RANGE(0x0018, 0x001b) AM_DEVREAD("uart2", tms9902_device, cruread) // Cassette - //AM_RANGE(0x00e0, 0x00ff) AM_WRITE("dma", tms9911_device, write) // r12 = 1c0-1fe - //AM_RANGE(0x001c, 0x001f) AM_READ("dma", tms9911_device, read) // if reading is needed - //AM_RANGE(0x0400, 0x0407) AM_WRITE(cent_data_w) // r12 = 800-80e - //AM_RANGE(0x0408, 0x0408) AM_WRITE(cent_strobe_w) // r12 = 810 - //AM_RANGE(0x0081, 0x0081) AM_READ(cent_stat_r) // CRU 409 (r12 = 812) + AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0030) AM_DEVWRITE("control", ls259_device, write_a0) + //AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0020) AM_READ(pio_r) + //AM_RANGE(0x0010, 0x001f) AM_MIRROR(0x0020) AM_READ(keyboard_r) + //AM_RANGE(0x0080, 0x00bf) AM_READWRITE(rs232_r,rs232_w) + //AM_RANGE(0x0180, 0x01bf) AM_READWRITE(cass_r,cass_w) + //AM_RANGE(0x0800, 0x080f) AM_WRITE(cent_data_w) + //AM_RANGE(0x0810, 0x0811) AM_WRITE(cent_strobe_w) + //AM_RANGE(0x0812, 0x0813) AM_READ(cent_stat_r) + //AM_RANGE(0x1ee0, 0x1eef) AM_READWRITE(cpu_int_r,cpu_int_w) + //AM_RANGE(0x1fda, 0x1fdb) AM_READWRITE(cpu_int1_r,cpu_int1_w) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( cortex ) - PORT_START("DSW") - PORT_DIPNAME( 0x04, 0x00, "DISK SIZE") - PORT_DIPSETTING( 0x04, "20cm") - PORT_DIPSETTING( 0x00, "13cm") - PORT_DIPNAME( 0x08, 0x08, "DISK DENSITY") - PORT_DIPSETTING( 0x08, "Double") - PORT_DIPSETTING( 0x00, "Single") INPUT_PORTS_END -READ8_MEMBER( cortex_state::pio_r ) -{ - return (m_kbd_ack ? 0x20 : 0) | (m_vdp_int ? 0x40 : 0) | m_io_dsw->read() | 0x93; -} - -READ8_MEMBER( cortex_state::keyboard_r ) -{ - return m_term_data; -} - -WRITE_LINE_MEMBER( cortex_state::keyboard_ack_w ) -{ - if (!state) - { - m_maincpu->set_input_line(INT_9995_INT4, CLEAR_LINE); - m_kbd_ack = 1; - } -} - -WRITE_LINE_MEMBER( cortex_state::romsw_w ) -{ - membank("bankr0")->set_entry(state ? 0 : 1); -} - -WRITE_LINE_MEMBER( cortex_state::vdp_int_w ) -{ - m_vdp_int = state ? 0 : 1; // change polarity to match mame -} - -void cortex_state::kbd_put(u8 data) -{ - m_term_data = data; - m_kbd_ack = 0; - m_maincpu->set_input_line(INT_9995_INT4, ASSERT_LINE); -} void cortex_state::machine_reset() { - m_kbd_ack = 1; - m_vdp_int = 0; - m_beep->set_state(0); - membank("bankr0")->set_entry(1); // point at rom - membank("bankw0")->set_entry(0); // always write to ram + uint8_t* ROM = memregion("maincpu")->base(); + memcpy(m_p_ram, ROM, 0x6000); m_maincpu->ready_line(ASSERT_LINE); } -DRIVER_INIT_MEMBER( cortex_state, init ) -{ - uint8_t *main = memregion("maincpu")->base(); - - membank("bankr0")->configure_entry(1, &main[0x10000]); - membank("bankr0")->configure_entry(0, &main[0x00000]); - membank("bankw0")->configure_entry(0, &main[0x00000]); -} - static MACHINE_CONFIG_START( cortex ) /* basic machine hardware */ /* TMS9995 CPU @ 12.0 MHz */ // Standard variant, no overflow int // No lines connected yet - MCFG_TMS99xx_ADD("maincpu", TMS9995, XTAL_12MHz, mem_map, io_map) + MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, mem_map, io_map) MCFG_DEVICE_ADD("control", LS259, 0) // IC64 //MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(WRITELINE(cortex_state, basic_led_w)) - MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w)) + //MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w)) //MCFG_ADDRESSABLE_LATCH_Q2_OUT_CB(WRITELINE(cortex_state, ebus_int_ack_w)) //MCFG_ADDRESSABLE_LATCH_Q3_OUT_CB(WRITELINE(cortex_state, ebus_to_en_w)) //MCFG_ADDRESSABLE_LATCH_Q4_OUT_CB(WRITELINE(cortex_state, disk_size_w)) - MCFG_ADDRESSABLE_LATCH_Q5_OUT_CB(WRITELINE(cortex_state, romsw_w)) - MCFG_ADDRESSABLE_LATCH_Q6_OUT_CB(DEVWRITELINE("beeper", beep_device, set_state)) + //MCFG_ADDRESSABLE_LATCH_Q5_OUT_CB(WRITELINE(cortex_state, eprom_on_off_w)) + //MCFG_ADDRESSABLE_LATCH_Q6_OUT_CB(WRITELINE(cortex_state, bell_en_w)) /* video hardware */ - MCFG_DEVICE_ADD( "crtc", TMS9929A, XTAL_10_738635MHz / 2 ) - MCFG_TMS9928A_OUT_INT_LINE_CB(INPUTLINE("maincpu", INT_9995_INT1)) - MCFG_DEVCB_CHAIN_OUTPUT(WRITELINE(cortex_state, vdp_int_w)) + MCFG_DEVICE_ADD( "tms9928a", TMS9929A, XTAL_10_738635MHz / 2 ) MCFG_TMS9928A_VRAM_SIZE(0x4000) MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" ) - MCFG_SCREEN_UPDATE_DEVICE( "crtc", tms9928a_device, screen_update ) - - MCFG_DEVICE_ADD("keyboard", GENERIC_KEYBOARD, 0) - MCFG_GENERIC_KEYBOARD_CB(PUT(cortex_state, kbd_put)) - - //MCFG_DEVICE_ADD("uart1", TMS9902, XTAL_12MHz / 4) - //MCFG_DEVICE_ADD("uart2", TMS9902, XTAL_12MHz / 4) - - /* Sound */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("beeper", BEEP, 950) // guess - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) + MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update ) MACHINE_CONFIG_END /* ROM definition */ ROM_START( cortex ) - ROM_REGION( 0x18000, "maincpu", ROMREGION_ERASEFF ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS(0, "basic", "Cortex Bios") - ROMX_LOAD( "cortex.ic47", 0x10000, 0x2000, CRC(bdb8c7bd) SHA1(340829dcb7a65f2e830fd5aff82a312e3ed7918f), ROM_BIOS(1)) - ROMX_LOAD( "cortex.ic46", 0x12000, 0x2000, CRC(4de459ea) SHA1(00a42fe556d4ffe1f85b2ce369f544b07fbd06d9), ROM_BIOS(1)) - ROMX_LOAD( "cortex.ic45", 0x14000, 0x2000, CRC(b0c9b6e8) SHA1(4e20c3f0b7546b803da4805cd3b8616f96c3d923), ROM_BIOS(1)) + ROMX_LOAD( "cortex.ic47", 0x0000, 0x2000, CRC(bdb8c7bd) SHA1(340829dcb7a65f2e830fd5aff82a312e3ed7918f), ROM_BIOS(1)) + ROMX_LOAD( "cortex.ic46", 0x2000, 0x2000, CRC(4de459ea) SHA1(00a42fe556d4ffe1f85b2ce369f544b07fbd06d9), ROM_BIOS(1)) + ROMX_LOAD( "cortex.ic45", 0x4000, 0x2000, CRC(b0c9b6e8) SHA1(4e20c3f0b7546b803da4805cd3b8616f96c3d923), ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "forth", "FIG-Forth") - ROMX_LOAD( "forth.ic47", 0x10000, 0x2000, CRC(999034be) SHA1(0dcc7404c38aa0ae913101eb0aa98da82104b5d4), ROM_BIOS(2)) - ROMX_LOAD( "forth.ic46", 0x12000, 0x2000, CRC(8eca54cc) SHA1(0f1680e941ef60bb9bde9a4b843b78f30dff3202), ROM_BIOS(2)) + ROMX_LOAD( "forth.ic47", 0x0000, 0x2000, CRC(999034be) SHA1(0dcc7404c38aa0ae913101eb0aa98da82104b5d4), ROM_BIOS(2)) + ROMX_LOAD( "forth.ic46", 0x2000, 0x2000, CRC(8eca54cc) SHA1(0f1680e941ef60bb9bde9a4b843b78f30dff3202), ROM_BIOS(2)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS -COMP( 1982, cortex, 0, 0, cortex, cortex, cortex_state, init, "Powertran Cybernetics", "Cortex", MACHINE_NOT_WORKING ) +COMP( 1982, cortex, 0, 0, cortex, cortex, cortex_state, 0, "Powertran Cybernetics", "Cortex", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |