// license:BSD-3-Clause // copyright-holders:Sandro Ronco /*************************************************************************** Amstrad PenPad PDA 600 05/11/2009 Skeleton driver. Hardware info: U1: CPU Z8S180 Enhanced Z80 CPU 1 MB MMU 2 DMAs 2 UARTs (up to 512 Kbps) Two 16-Bit Timers Clock Serial I/O U2: ROM contains OS (binary and disassembled source) apparently compatible to 27C1001 (128K*8) U3: RAM 128K RAM, static U4: RTC U5: Amstrad ASIC (unknown functionality ) U6, U7, U8, U9: Multiplexer quad channel dual multiplexer U11: RAM 32K RAM, static U12: LCD Controller U21: 5V StepUp converter voltage converter U27: OA quad operational amplifier U30: RS232 Driver U31: Amstrad ASIC U32: FlipFlop Octal D-Flip-Flop U33: RAM 32K RAM, static U35: Tone Dialer generates DTMF frequencies U36: unknown U37: Nand Dual Quad-Input Nand U43: Bus Buffer Octal Bus Buffer Connectors: LCD Digitizer Serial PCMCIA Additional info: Two Z8 for power management and character recognition ****************************************************************************/ #include "emu.h" #include "cpu/z180/z180.h" #include "machine/nvram.h" #include "machine/hd64610.h" #include "emupal.h" #include "screen.h" class pda600_state : public driver_device { public: pda600_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } void pda600(machine_config &config); private: required_device m_maincpu; virtual void video_start() override; virtual void machine_reset() override; uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint8_t * m_video_ram; void pda600_io(address_map &map); void pda600_mem(address_map &map); }; void pda600_state::pda600_mem(address_map &map) { map.unmap_value_high(); map(0x00000, 0x1ffff).rom(); //map(0x20000, 0x9ffff).ram(); // PCMCIA Card map(0xa0000, 0xa7fff).ram().region("videoram", 0); map(0xe0000, 0xfffff).ram().region("mainram", 0).share("nvram"); } void pda600_state::pda600_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); map(0x00, 0x3f).noprw(); /* Z180 internal registers */ //map(0x40, 0x7f).noprw(); /* Z180 internal registers */ map(0x80, 0x8f).rw("rtc", FUNC(hd64610_device::read), FUNC(hd64610_device::write)); //map(0xc0, 0xc1).noprw(); /* LCD */ } /* Input ports */ static INPUT_PORTS_START( pda600 ) INPUT_PORTS_END void pda600_state::machine_reset() { // the PDA600 soon after start waits for something from the Z180 CSIO, I do not know exactly for what // the CSIO is used and for now I forced the CNTR End-Flag bit to 1 for allow the emulation to continue. m_maincpu->set_state_int(Z180_CNTR, m_maincpu->state_int(Z180_CNTR) | 0x80); } void pda600_state::video_start() { m_video_ram = memregion("videoram")->base(); } uint32_t pda600_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { for (int y=0; y<320; y++) for (int x=0; x<30; x++) { uint8_t data = m_video_ram[y*30 + x]; for (int px=0; px<8; px++) { bitmap.pix16(y, (x * 8) + px) = BIT(data, 7); data <<= 1; } } return 0; } static const gfx_layout pda600_charlayout_8 = { 8, 8, 49, 1, { 0 }, { 0,1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*8 }; static const gfx_layout pda600_charlayout_13 = { 8, 13, 123, 1, { 0 }, { 0,1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 8*9, 8*10, 8*11, 8*12 }, 8*13 }; static const gfx_layout pda600_charlayout_13a = { 8, 13, 132, 1, { 0 }, { 0,1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 8*9, 8*10, 8*11, 8*12 }, 8*13 }; static const gfx_layout pda600_charlayout_19 = { 8, 19, 32, 1, { 0 }, { 0,1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 8*9, 8*10, 8*11, 8*12, 8*13, 8*14, 8*15, 8*16, 8*17, 8*18 }, 8*19 }; static const gfx_layout pda600_charlayout_19a = { 8, 19, 11, 1, { 0 }, { 0,1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 8*9, 8*10, 8*11, 8*12, 8*13, 8*14, 8*15, 8*16, 8*17, 8*18 }, 8*19 }; static GFXDECODE_START( gfx_pda600 ) GFXDECODE_ENTRY( "maincpu", 0x45cd, pda600_charlayout_19, 0, 1 ) GFXDECODE_ENTRY( "maincpu", 0x4892, pda600_charlayout_19a, 0, 1 ) GFXDECODE_ENTRY( "maincpu", 0x4d73, pda600_charlayout_8, 0, 1 ) GFXDECODE_ENTRY( "maincpu", 0x5b8f, pda600_charlayout_13, 0, 1 ) GFXDECODE_ENTRY( "maincpu", 0x61d3, pda600_charlayout_13a, 0, 1 ) GFXDECODE_END void pda600_state::pda600(machine_config &config) { /* basic machine hardware */ Z8S180(config, m_maincpu, XTAL(14'318'181)); m_maincpu->set_addrmap(AS_PROGRAM, &pda600_state::pda600_mem); m_maincpu->set_addrmap(AS_IO, &pda600_state::pda600_io); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); screen.set_refresh_hz(50); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_size(240, 320); screen.set_visarea(0, 240-1, 0, 320-1); screen.set_screen_update(FUNC(pda600_state::screen_update)); screen.set_palette("palette"); GFXDECODE(config, "gfxdecode", "palette", gfx_pda600); PALETTE(config, "palette", palette_device::MONOCHROME); // NVRAM needs to be filled with random data to fail the checksum and be initialized correctly NVRAM(config, "nvram", nvram_device::DEFAULT_RANDOM); HD64610(config, "rtc", XTAL(32'768)); } /* ROM definition */ ROM_START( pda600 ) ROM_REGION( 0x20000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "pdarom.bin", 0x00000, 0x20000, CRC(f793a6c5) SHA1(ab14b0fdcedb927c66357368a2bfff605ba758fb)) // 128KB RAM ROM_REGION( 0x20000, "mainram", ROMREGION_ERASE ) // 32KB Video RAM ROM_REGION( 0x8000, "videoram", ROMREGION_ERASE ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1993, pda600, 0, 0, pda600, pda600, pda600_state, empty_init, "Amstrad plc", "PenPad PDA 600", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)