// license:GPL-2.0+ // copyright-holders:Lee Hammerton, Dirk Best /*************************************************************************** Miles Gordon Technology SAM Coupe Notes: ------ Beware - the early ROMs are very buggy, and tend to go mad once BASIC starts paging. ROM 10 (version 1.0) requires the CALL after F9 or BOOT because the ROM loads the bootstrap but fails to execute it. The address depends on the RAM size: On a 256K SAM: CALL 229385 Or on a 512K (or larger) machine: CALL 491529 Todo: ----- - Attribute read - Better timing - Harddisk interfaces ***************************************************************************/ /* core includes */ #include "emu.h" #include "includes/samcoupe.h" #include "cpu/z80/z80.h" #include "sound/saa1099.h" #include "screen.h" #include "softlist.h" #include "speaker.h" #include "formats/tzx_cas.h" #include "formats/coupedsk.h" /*************************************************************************** CONSTANTS ***************************************************************************/ #define SAMCOUPE_XTAL_X1 XTAL(24'000'000) #define SAMCOUPE_XTAL_X2 XTAL(4'433'619) /*************************************************************************** TIMERS ***************************************************************************/ void samcoupe_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { switch (id) { case TIMER_IRQ_OFF: irq_off(ptr, param); break; case TIMER_MOUSE_RESET: samcoupe_mouse_reset(ptr, param); break; case TIMER_VIDEO_UPDATE: sam_video_update_callback(ptr, param); break; default: assert_always(false, "Unknown id in samcoupe_state::device_timer"); } } /*************************************************************************** I/O PORTS ***************************************************************************/ READ8_MEMBER(samcoupe_state::samcoupe_disk_r) { /* drive and side is encoded into bit 5 and 3 */ floppy_connector *con = (BIT(offset, 4) ? m_wd1772_1 : m_wd1772_0); floppy_image_device *floppy = con ? con->get_device() : nullptr; if(floppy) floppy->ss_w(BIT(offset, 2)); m_fdc->set_floppy(floppy); /* bit 1 and 2 select the controller register */ switch (offset & 0x03) { case 0: return m_fdc->status_r(); case 1: return m_fdc->track_r(); case 2: return m_fdc->sector_r(); case 3: return m_fdc->data_r(); } return 0xff; } WRITE8_MEMBER(samcoupe_state::samcoupe_disk_w) { /* drive and side is encoded into bit 5 and 3 */ floppy_connector *con = (BIT(offset, 4) ? m_wd1772_1 : m_wd1772_0); floppy_image_device *floppy = con ? con->get_device() : nullptr; if(floppy) floppy->ss_w(BIT(offset, 2)); m_fdc->set_floppy(floppy); /* bit 1 and 2 select the controller register */ switch (offset & 0x03) { case 0: m_fdc->cmd_w(data); break; case 1: m_fdc->track_w(data); break; case 2: m_fdc->sector_w(data); break; case 3: m_fdc->data_w(data); break; } } READ8_MEMBER(samcoupe_state::samcoupe_pen_r) { uint8_t data; if (offset & 0x100) { int vpos = m_screen->vpos(); /* return the current screen line or 192 for the border area */ if (vpos < SAM_BORDER_TOP || vpos >= SAM_BORDER_TOP + SAM_SCREEN_HEIGHT) data = 192; else data = vpos - SAM_BORDER_TOP; } else { /* horizontal position is encoded into bits 3 to 8 */ data = m_screen->hpos() & 0xfc; } return data; } WRITE8_MEMBER(samcoupe_state::samcoupe_clut_w) { m_clut[(offset >> 8) & 0x0f] = data & 0x7f; } READ8_MEMBER(samcoupe_state::samcoupe_status_r) { uint8_t data = 0xe0; /* bit 5-7, keyboard input */ if (!BIT(offset, 8)) data &= m_keyboard_row_fe->read() & 0xe0; if (!BIT(offset, 9)) data &= m_keyboard_row_fd->read() & 0xe0; if (!BIT(offset, 10)) data &= m_keyboard_row_fb->read() & 0xe0; if (!BIT(offset, 11)) data &= m_keyboard_row_f7->read() & 0xe0; if (!BIT(offset, 12)) data &= m_keyboard_row_ef->read() & 0xe0; if (!BIT(offset, 13)) data &= m_keyboard_row_df->read() & 0xe0; if (!BIT(offset, 14)) data &= m_keyboard_row_bf->read() & 0xe0; if (!BIT(offset, 15)) data &= m_keyboard_row_7f->read() & 0xe0; /* bit 0-4, interrupt source */ data |= m_status; return data; } WRITE8_MEMBER(samcoupe_state::samcoupe_line_int_w) { m_line_int = data; } READ8_MEMBER(samcoupe_state::samcoupe_lmpr_r) { return m_lmpr; } WRITE8_MEMBER(samcoupe_state::samcoupe_lmpr_w) { address_space &space_program = m_maincpu->space(AS_PROGRAM); m_lmpr = data; samcoupe_update_memory(space_program); } READ8_MEMBER(samcoupe_state::samcoupe_hmpr_r) { return m_hmpr; } WRITE8_MEMBER(samcoupe_state::samcoupe_hmpr_w) { address_space &space_program = m_maincpu->space(AS_PROGRAM); m_hmpr = data; samcoupe_update_memory(space_program); } READ8_MEMBER(samcoupe_state::samcoupe_vmpr_r) { return m_vmpr; } WRITE8_MEMBER(samcoupe_state::samcoupe_vmpr_w) { address_space &space_program = m_maincpu->space(AS_PROGRAM); m_vmpr = data; samcoupe_update_memory(space_program); } READ8_MEMBER(samcoupe_state::samcoupe_midi_r) { logerror("%s: read from midi port\n", machine().describe_context()); return 0xff; } WRITE8_MEMBER(samcoupe_state::samcoupe_midi_w) { logerror("%s: write to midi port: 0x%02x\n", machine().describe_context(), data); } READ8_MEMBER(samcoupe_state::samcoupe_keyboard_r) { uint8_t data = 0x1f; /* bit 0-4, keyboard input */ if (!BIT(offset, 8)) data &= m_keyboard_row_fe->read() & 0x1f; if (!BIT(offset, 9)) data &= m_keyboard_row_fd->read() & 0x1f; if (!BIT(offset, 10)) data &= m_keyboard_row_fb->read() & 0x1f; if (!BIT(offset, 11)) data &= m_keyboard_row_f7->read() & 0x1f; if (!BIT(offset, 12)) data &= m_keyboard_row_ef->read() & 0x1f; if (!BIT(offset, 13)) data &= m_keyboard_row_df->read() & 0x1f; if (!BIT(offset, 14)) data &= m_keyboard_row_bf->read() & 0x1f; if (!BIT(offset, 15)) data &= m_keyboard_row_7f->read() & 0x1f; if (offset == 0xff00) { data &= m_keyboard_row_ff->read() & 0x1f; /* if no key has been pressed, return the mouse state */ if (data == 0x1f) data = samcoupe_mouse_r(); } /* bit 5, lightpen strobe */ data |= 1 << 5; /* bit 6, cassette input */ data |= (m_cassette->input() > 0 ? 1 : 0) << 6; /* bit 7, external memory */ data |= 1 << 7; return data; } WRITE8_MEMBER(samcoupe_state::samcoupe_border_w) { m_border = data; /* bit 3, cassette output */ m_cassette->output( BIT(data, 3) ? -1.0 : +1.0); /* bit 4, beep */ m_speaker->level_w(BIT(data, 4)); } READ8_MEMBER(samcoupe_state::samcoupe_attributes_r) { return m_attribute; } WRITE_LINE_MEMBER(samcoupe_state::write_lpt1_busy) { m_lpt1_busy = state; } READ8_MEMBER(samcoupe_state::samcoupe_lpt1_busy_r) { return m_lpt1_busy; } WRITE8_MEMBER(samcoupe_state::samcoupe_lpt1_strobe_w) { m_lpt1->write_strobe(data & 1); } DECLARE_WRITE_LINE_MEMBER(samcoupe_state::write_lpt2_busy) { m_lpt2_busy = state; } READ8_MEMBER(samcoupe_state::samcoupe_lpt2_busy_r) { return m_lpt2_busy; } WRITE8_MEMBER(samcoupe_state::samcoupe_lpt2_strobe_w) { m_lpt2->write_strobe(data & 1); } /*************************************************************************** ADDRESS MAPS ***************************************************************************/ void samcoupe_state::samcoupe_mem(address_map &map) { map(0x0000, 0x3fff).ram().rw(this, FUNC(samcoupe_state::sam_bank1_r), FUNC(samcoupe_state::sam_bank1_w)); // AM_RAMBANK("bank1") map(0x4000, 0x7fff).ram().rw(this, FUNC(samcoupe_state::sam_bank2_r), FUNC(samcoupe_state::sam_bank2_w)); // AM_RAMBANK("bank2") map(0x8000, 0xbfff).ram().rw(this, FUNC(samcoupe_state::sam_bank3_r), FUNC(samcoupe_state::sam_bank3_w)); // AM_RAMBANK("bank3") map(0xc000, 0xffff).ram().rw(this, FUNC(samcoupe_state::sam_bank4_r), FUNC(samcoupe_state::sam_bank4_w)); // AM_RAMBANK("bank4") } void samcoupe_state::samcoupe_io(address_map &map) { map(0x0080, 0x0081).select(0xff00).w(this, FUNC(samcoupe_state::samcoupe_ext_mem_w)); map(0x00e0, 0x00e7).select(0xff10).rw(this, FUNC(samcoupe_state::samcoupe_disk_r), FUNC(samcoupe_state::samcoupe_disk_w)); map(0x00e8, 0x00e8).select(0xff00).w("lpt1_data_out", FUNC(output_latch_device::write)); map(0x00e9, 0x00e9).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_lpt1_busy_r), FUNC(samcoupe_state::samcoupe_lpt1_strobe_w)); map(0x00ea, 0x00ea).select(0xff00).w("lpt2_data_out", FUNC(output_latch_device::write)); map(0x00eb, 0x00eb).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_lpt2_busy_r), FUNC(samcoupe_state::samcoupe_lpt2_strobe_w)); map(0x00f8, 0x00f8).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_pen_r), FUNC(samcoupe_state::samcoupe_clut_w)); map(0x00f9, 0x00f9).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_status_r), FUNC(samcoupe_state::samcoupe_line_int_w)); map(0x00fa, 0x00fa).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_lmpr_r), FUNC(samcoupe_state::samcoupe_lmpr_w)); map(0x00fb, 0x00fb).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_hmpr_r), FUNC(samcoupe_state::samcoupe_hmpr_w)); map(0x00fc, 0x00fc).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_vmpr_r), FUNC(samcoupe_state::samcoupe_vmpr_w)); map(0x00fd, 0x00fd).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_midi_r), FUNC(samcoupe_state::samcoupe_midi_w)); map(0x00fe, 0x00fe).select(0xff00).rw(this, FUNC(samcoupe_state::samcoupe_keyboard_r), FUNC(samcoupe_state::samcoupe_border_w)); map(0x00ff, 0x00ff).select(0xff00).r(this, FUNC(samcoupe_state::samcoupe_attributes_r)); map(0x00ff, 0x00ff).select(0xfe00).w("saa1099", FUNC(saa1099_device::data_w)); map(0x01ff, 0x01ff).select(0xfe00).w("saa1099", FUNC(saa1099_device::control_w)); } /*************************************************************************** INTERRUPTS ***************************************************************************/ TIMER_CALLBACK_MEMBER(samcoupe_state::irq_off) { /* adjust STATUS register */ m_status |= param; /* clear interrupt */ if ((m_status & 0x1f) == 0x1f) m_maincpu->set_input_line(0, CLEAR_LINE); } void samcoupe_state::samcoupe_irq(uint8_t src) { /* assert irq and a timer to set it off again */ m_maincpu->set_input_line(0, ASSERT_LINE); timer_set(attotime::from_usec(20), TIMER_IRQ_OFF, src); /* adjust STATUS register */ m_status &= ~src; } INTERRUPT_GEN_MEMBER(samcoupe_state::samcoupe_frame_interrupt) { /* signal frame interrupt */ samcoupe_irq(SAM_FRAME_INT); } /*************************************************************************** INPUT PORTS ***************************************************************************/ static INPUT_PORTS_START( samcoupe ) PORT_START("keyboard_row_fe") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR('?') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_START("keyboard_row_fd") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR('{') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR('}') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_START("keyboard_row_fb") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR('<') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR('>') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR('[') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(']') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_START("keyboard_row_f7") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_START("keyboard_row_ef") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('~') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('/') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('+') PORT_CHAR('*') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DELETE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_START("keyboard_row_df") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('=') PORT_CHAR('_') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('"') PORT_CHAR(0xA9) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_START("keyboard_row_bf") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0xA3) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') PORT_CHAR('^') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("EDIT") PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_START("keyboard_row_7f") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SYMBOL") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("INV") PORT_CODE(KEYCODE_SLASH) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_CHAR('\\') PORT_START("keyboard_row_ff") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LALT) PORT_CHAR(UCHAR_MAMEKEY(LALT)) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_START("mouse_buttons") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_CODE(MOUSECODE_BUTTON1) PORT_NAME("Mouse Button 1") PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_BUTTON3) PORT_CODE(MOUSECODE_BUTTON3) PORT_NAME("Mouse Button 3") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_CODE(MOUSECODE_BUTTON2) PORT_NAME("Mouse Button 2") PORT_BIT(0xf8, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("mouse_x") PORT_BIT(0xfff, 0x000, IPT_MOUSE_X) PORT_SENSITIVITY(50) PORT_KEYDELTA(0) PORT_REVERSE PORT_START("mouse_y") PORT_BIT(0xfff, 0x000, IPT_MOUSE_Y) PORT_SENSITIVITY(50) PORT_KEYDELTA(0) PORT_START("config") PORT_CONFNAME(0x01, 0x00, "Real Time Clock") PORT_CONFSETTING( 0x00, DEF_STR(None)) PORT_CONFSETTING( 0x01, "SAMBUS") INPUT_PORTS_END /*************************************************************************** PALETTE ***************************************************************************/ /* Decode colours for the palette as follows: bit 7 6 5 4 3 2 1 0 nothing G+4 R+4 B+4 ALL+1 G+2 R+2 B+2 */ PALETTE_INIT_MEMBER(samcoupe_state, samcoupe) { for (int i = 0; i < 128; i++) { uint8_t b = BIT(i, 0) * 2 + BIT(i, 4) * 4 + BIT(i, 3); uint8_t r = BIT(i, 1) * 2 + BIT(i, 5) * 4 + BIT(i, 3); uint8_t g = BIT(i, 2) * 2 + BIT(i, 6) * 4 + BIT(i, 3); r <<= 5; g <<= 5; b <<= 5; palette.set_pen_color(i, rgb_t(r, g, b)); } palette.palette()->normalize_range(0, 127); } /*************************************************************************** MACHINE DRIVERS ***************************************************************************/ FLOPPY_FORMATS_MEMBER( samcoupe_state::floppy_formats ) FLOPPY_MGT_FORMAT FLOPPY_FORMATS_END static void samcoupe_floppies(device_slot_interface &device) { device.option_add("35dd", FLOPPY_35_DD); } MACHINE_CONFIG_START(samcoupe_state::samcoupe) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80, SAMCOUPE_XTAL_X1 / 4) /* 6 MHz */ MCFG_DEVICE_PROGRAM_MAP(samcoupe_mem) MCFG_DEVICE_IO_MAP(samcoupe_io) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", samcoupe_state, samcoupe_frame_interrupt) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_RAW_PARAMS(SAMCOUPE_XTAL_X1/2, SAM_TOTAL_WIDTH, 0, SAM_BORDER_LEFT + SAM_SCREEN_WIDTH + SAM_BORDER_RIGHT, SAM_TOTAL_HEIGHT, 0, SAM_BORDER_TOP + SAM_SCREEN_HEIGHT + SAM_BORDER_BOTTOM) MCFG_SCREEN_UPDATE_DRIVER(samcoupe_state, screen_update) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 128) MCFG_PALETTE_INIT_OWNER(samcoupe_state, samcoupe) /* devices */ MCFG_CENTRONICS_ADD("lpt1", centronics_devices, "printer") MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(*this, samcoupe_state, write_lpt1_busy)) MCFG_CENTRONICS_OUTPUT_LATCH_ADD("lpt1_data_out", "lpt1") MCFG_CENTRONICS_ADD("lpt2", centronics_devices, "printer") MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(*this, samcoupe_state, write_lpt2_busy)) MCFG_CENTRONICS_OUTPUT_LATCH_ADD("lpt2_data_out", "lpt2") MCFG_DEVICE_ADD("sambus_clock", MSM6242, XTAL(32'768)) MCFG_CASSETTE_ADD("cassette") MCFG_CASSETTE_FORMATS(tzx_cassette_formats) MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_SPEAKER_ENABLED | CASSETTE_MOTOR_ENABLED) MCFG_CASSETTE_INTERFACE("samcoupe_cass") MCFG_SOFTWARE_LIST_ADD("cass_list","samcoupe_cass") MCFG_WD1772_ADD("wd1772", SAMCOUPE_XTAL_X1/3) MCFG_FLOPPY_DRIVE_ADD("wd1772:0", samcoupe_floppies, "35dd", samcoupe_state::floppy_formats) MCFG_FLOPPY_DRIVE_ADD("wd1772:1", samcoupe_floppies, "35dd", samcoupe_state::floppy_formats) MCFG_SOFTWARE_LIST_ADD("flop_list","samcoupe_flop") /* sound hardware */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("speaker", SPEAKER_SOUND) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) MCFG_SAA1099_ADD("saa1099", SAMCOUPE_XTAL_X1/3) /* 8 MHz */ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) /* internal ram */ MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("512K") MCFG_RAM_EXTRA_OPTIONS("256K,1280K,1536K,2304K,2560K,3328K,3584K,4352K,4608K") MACHINE_CONFIG_END /*************************************************************************** ROM DEFINITIONS ***************************************************************************/ /* The bios is actually 32K. This is the combined version of the two old 16K MESS roms. It does match the 3.0 one the most, but the first half differs in one byte and in the second half, the case of the "plc" in the company string differs. */ ROM_START( samcoupe ) ROM_REGION( 0x8000, "maincpu", 0 ) ROM_SYSTEM_BIOS( 0, "31", "v3.1" ) ROMX_LOAD( "rom31.z5", 0x0000, 0x8000, CRC(0b7e3585) SHA1(c86601633fb61a8c517f7657aad9af4e6870f2ee), ROM_BIOS(1) ) ROM_SYSTEM_BIOS( 1, "30", "v3.0" ) ROMX_LOAD( "rom30.z5", 0x0000, 0x8000, CRC(e535c25d) SHA1(d390f0be420dfb12b1e54a4f528b5055d7d97e2a), ROM_BIOS(2) ) ROM_SYSTEM_BIOS( 2, "25", "v2.5" ) ROMX_LOAD( "rom25.z5", 0x0000, 0x8000, CRC(ddadd358) SHA1(a25ed85a0f1134ac3a481a3225f24a8bd3a790cf), ROM_BIOS(3) ) ROM_SYSTEM_BIOS( 3, "24", "v2.4" ) ROMX_LOAD( "rom24.z5", 0x0000, 0x8000, CRC(bb23fee4) SHA1(10cd911ba237dd2cf0c2637be1ad6745b7cc89b9), ROM_BIOS(4) ) ROM_SYSTEM_BIOS( 4, "21", "v2.1" ) ROMX_LOAD( "rom21.z5", 0x0000, 0x8000, CRC(f6804b46) SHA1(11dcac5fdea782cdac03b4d0d7ac25d88547eefe), ROM_BIOS(5) ) ROM_SYSTEM_BIOS( 5, "20", "v2.0" ) ROMX_LOAD( "rom20.z5", 0x0000, 0x8000, CRC(eaf32054) SHA1(41736323f0236649f2d5fe111f900def8db93a13), ROM_BIOS(6) ) ROM_SYSTEM_BIOS( 6, "181", "v1.81" ) ROMX_LOAD( "rom181.z5", 0x0000, 0x8000, CRC(d25e1de1) SHA1(cb0fa79e4d5f7df0b57ede08ea7ecc9ae152f534), ROM_BIOS(7) ) ROM_SYSTEM_BIOS( 7, "18", "v1.8" ) ROMX_LOAD( "rom18.z5", 0x0000, 0x8000, CRC(f626063f) SHA1(485e7d9e9a4f8a70c0f93cd6e69ff12269438829), ROM_BIOS(8) ) ROM_SYSTEM_BIOS( 8, "14", "v1.4" ) ROMX_LOAD( "rom14.z5", 0x0000, 0x8000, CRC(08799596) SHA1(b4e596051f2748dee9481ea4af7d15ccddc1e1b5), ROM_BIOS(9) ) ROM_SYSTEM_BIOS( 9, "13", "v1.3" ) ROMX_LOAD( "rom13.z5", 0x0000, 0x8000, CRC(2093768c) SHA1(af8d348fd080b18a4cbe9ed69d254be7be330146), ROM_BIOS(10) ) ROM_SYSTEM_BIOS( 10, "12", "v1.2" ) ROMX_LOAD( "rom12.z5", 0x0000, 0x8000, CRC(7fe37dd8) SHA1(9339a0c1f72e8512c6f32dec15ab7d6c3bb04151), ROM_BIOS(11) ) ROM_SYSTEM_BIOS( 11, "10", "v1.0" ) ROMX_LOAD( "rom10.z5", 0x0000, 0x8000, CRC(3659d31f) SHA1(d3de7bb74e04d5b4dc7477f70de54d540b1bcc07), ROM_BIOS(12) ) ROM_SYSTEM_BIOS( 12, "04", "v0.4" ) ROMX_LOAD( "rom04.z5", 0x0000, 0x8000, CRC(f439e84e) SHA1(8bc457a5c764b0bb0aa7008c57f28c30248fc6a4), ROM_BIOS(13) ) ROM_SYSTEM_BIOS( 13, "01", "v0.1" ) ROMX_LOAD( "rom01.z5", 0x0000, 0x8000, CRC(c04acfdf) SHA1(8976ed005c14905eec1215f0a5c28aa686a7dda2), ROM_BIOS(14) ) ROM_END /*************************************************************************** GAME DRIVERS ***************************************************************************/ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1989, samcoupe, 0, 0, samcoupe, samcoupe, samcoupe_state, empty_init, "Miles Gordon Technology plc", "SAM Coupe", 0 )