diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua index 9df37b00713..7a0a7f9f389 100644 --- a/scripts/target/mame/mess.lua +++ b/scripts/target/mame/mess.lua @@ -1275,6 +1275,7 @@ function linkProjects_mame_mess(_target, _subtarget) "kurzweil", "kyocera", "leapfrog", + "learsiegler", "lsi", "luxor", "magnavox", @@ -2806,7 +2807,7 @@ files { MAME_DIR .. "src/mame/drivers/leapfrog_iquest.cpp", } -createMESSProjects(_target, _subtarget, "lsi") +createMESSProjects(_target, _subtarget, "learsiegler") files { MAME_DIR .. "src/mame/drivers/adm11.cpp", MAME_DIR .. "src/mame/drivers/adm23.cpp", @@ -2814,6 +2815,14 @@ files { MAME_DIR .. "src/mame/drivers/adm36.cpp", } +createMESSProjects(_target, _subtarget, "lsi") +files { + MAME_DIR .. "src/mame/drivers/m3.cpp", + MAME_DIR .. "src/mame/drivers/octopus.cpp", + MAME_DIR .. "src/mame/machine/octo_kbd.cpp", + MAME_DIR .. "src/mame/machine/octo_kbd.h", +} + createMESSProjects(_target, _subtarget, "luxor") files { MAME_DIR .. "src/mame/drivers/abc80.cpp", @@ -4519,7 +4528,6 @@ files { MAME_DIR .. "src/mame/drivers/lms46.cpp", MAME_DIR .. "src/mame/drivers/lola8a.cpp", MAME_DIR .. "src/mame/drivers/lilith.cpp", - MAME_DIR .. "src/mame/drivers/m3.cpp", MAME_DIR .. "src/mame/drivers/mccpm.cpp", MAME_DIR .. "src/mame/drivers/mes.cpp", MAME_DIR .. "src/mame/drivers/mfabfz.cpp", @@ -4557,9 +4565,6 @@ files { MAME_DIR .. "src/mame/drivers/ngen.cpp", MAME_DIR .. "src/mame/machine/ngen_kb.cpp", MAME_DIR .. "src/mame/machine/ngen_kb.h", - MAME_DIR .. "src/mame/drivers/octopus.cpp", - MAME_DIR .. "src/mame/machine/octo_kbd.cpp", - MAME_DIR .. "src/mame/machine/octo_kbd.h", MAME_DIR .. "src/mame/drivers/onyx.cpp", MAME_DIR .. "src/mame/drivers/p8k.cpp", MAME_DIR .. "src/mame/drivers/pdt3100.cpp", diff --git a/src/mame/drivers/m3.cpp b/src/mame/drivers/m3.cpp index f40db77c10f..e66db6f5350 100644 --- a/src/mame/drivers/m3.cpp +++ b/src/mame/drivers/m3.cpp @@ -1,152 +1,594 @@ -// license:BSD-3-Clause -// copyright-holders: -/*********************************************************************************************************************************** +// license: BSD-3-Clause +// copyright-holders: Robbbert, Dirk Best +/*************************************************************************** -2017-11-20 Skeleton + LSI M-THREE -LSI M3 + Models: + - M-THREE/100 (SA400, 5.25" single sided) + - M-THREE/110 (SA410, 5.25" single sided) + - M-THREE/150 (SA450, 5.25" double sided) + - M-THREE/160 (SA460, 5.25" double sided) + - M-THREE/200 (SA800, 8" single sided) + - M-THREE/250 (SA850, 8" double sided) [emulated by default] + - M-THREE/320 (SA800, 8" single sided, Winchester 5 MB) + - M-THREE/325 (SA850, 8" double sided, Winchester 5 MB) + - M-THREE/340 (SA800, 8" single sided, Winchester 10 MB) + - M-THREE/345 (SA850, 8" double sided, Winchester 10 MB) -From disassembly: chips: Z80, 6845, 8251, 2x 8255, Z80CTC + Hardware: + - Z80 + - 64 KB RAM + - Z80 CTC + - 2x D8255AC PPI + - D8251A + - MC6845P CRTC + - FD1793 FDC + TODO: + - Initial PC is currently hacked to f000 + - Finish floppy hookup + - Printer interface + - Buzzer + - Map the rest of the keys, verify existing keys -************************************************************************************************************************************/ + Notes: + - No software available + +***************************************************************************/ #include "emu.h" +#include "cpu/mcs48/mcs48.h" #include "cpu/z80/z80.h" +#include "machine/z80ctc.h" +#include "machine/i8255.h" +#include "machine/i8251.h" +#include "machine/wd_fdc.h" #include "video/mc6845.h" +#include "imagedev/floppy.h" +#include "bus/rs232/rs232.h" #include "emupal.h" #include "screen.h" + +namespace { + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + class m3_state : public driver_device { public: m3_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_p_chargen(*this, "chargen") - , m_p_videoram(*this, "videoram") - , m_palette(*this, "palette") + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_ppi(*this, "ppi%u", 0U), + m_chargen(*this, "chargen"), + m_vram(*this, "vram"), + m_palette(*this, "palette"), + m_fdc(*this, "fdc"), + m_floppy(*this, "fdc:%u", 0), + m_kbdmcu(*this, "kbdmcu"), + m_special(*this, "SPECIAL"), + m_keys(*this, "K%02u", 0U) { } void m3(machine_config &config); -private: - MC6845_UPDATE_ROW(crtc_update_row); - - void io_map(address_map &map); - void mem_map(address_map &map); - +protected: + virtual void machine_start() override; virtual void machine_reset() override; - required_device m_maincpu; - required_region_ptr m_p_chargen; - required_shared_ptr m_p_videoram; + +private: + required_device m_maincpu; + required_device_array m_ppi; + required_region_ptr m_chargen; + required_shared_ptr m_vram; required_device m_palette; + required_device m_fdc; + required_device_array m_floppy; + required_device m_kbdmcu; + required_ioport m_special; + required_ioport_array<16> m_keys; + + void mem_map(address_map &map); + void io_map(address_map &map); + void kbd_mem_map(address_map &map); + void kbd_io_map(address_map &map); + + int kbd_t0_r(); + int kbd_t1_r(); + uint8_t kbd_p1_r(); + void kbd_p1_w(uint8_t data); + void kbd_p2_w(uint8_t data); + void kbd_data_w(uint8_t data); + int m_kbd_col; + int m_kbd_row; + uint8_t m_kbd_data; + + void ppi2_pa_w(uint8_t data); + uint8_t ppi2_pb_r(); + + MC6845_UPDATE_ROW(crtc_update_row); }; + +//************************************************************************** +// ADDRESS MAPS +//************************************************************************** + void m3_state::mem_map(address_map &map) { map(0x0000, 0xe7ff).ram(); - map(0xe800, 0xefff).ram().share("videoram"); - map(0xf000, 0xffff).rom().region("roms", 0); + map(0xe800, 0xefff).ram().share("vram"); + map(0xf000, 0xffff).rom().region("maincpu", 0); } void m3_state::io_map(address_map &map) { map.global_mask(0xff); + map(0x80, 0x83).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); map(0x84, 0x84).rw("crtc", FUNC(mc6845_device::status_r), FUNC(mc6845_device::address_w)); map(0x85, 0x85).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); + map(0x88, 0x8b).rw(m_fdc, FUNC(fd1793_device::read), FUNC(fd1793_device::write)); + map(0x8c, 0x8d).rw("usart", FUNC(i8251_device::read), FUNC(i8251_device::write)); + map(0x90, 0x93).rw(m_ppi[0], FUNC(i8255_device::read), FUNC(i8255_device::write)); + map(0x94, 0x97).rw(m_ppi[1], FUNC(i8255_device::read), FUNC(i8255_device::write)); } +void m3_state::kbd_mem_map(address_map &map) +{ + map(0x000, 0x7ff).rom().mirror(0x800).region("keyboard", 0); +} + +void m3_state::kbd_io_map(address_map &map) +{ + map(0x30, 0x30).mirror(0xf).w(FUNC(m3_state::kbd_data_w)); +} + + +//************************************************************************** +// INPUT DEFINITIONS +//************************************************************************** + +// unmapped keys: +// +// INIT PROG F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 +// INS_CHAR DEL_CHAR INS_LINE DEL_LINE CLEAR_FORE CLEAR_PAGE PROT_MODE BLOCK_MODE +// SEND_LINE SEND_FORE SEND_PAGE PAGE_FWD UP PAGE_BACK LEFT HOME RIGHT +// BREAK SET_TAB DOWN CLEAR_TAB + static INPUT_PORTS_START( m3 ) + PORT_START("SPECIAL") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // or shift-lock? + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_SHIFT_2) + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_NAME("Repeat") + + PORT_START("K00") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(": (?)") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b4") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b3") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("85") + + PORT_START("K01") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0f") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b2") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("86") + + PORT_START("K02") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=') + 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_NAME("05") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("96") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("89") + + PORT_START("K03") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR('+') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 (?)") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("95") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + 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("8a") + + PORT_START("K04") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('*') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("11") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("94") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8b") + + PORT_START("K05") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd") + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("93") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') PORT_CHAR('|') // actually ¦ + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8c") + + PORT_START("K06") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("92") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('[') PORT_CHAR('{') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8d") + + PORT_START("K07") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('_') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("91") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR('\r') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8e") + + PORT_START("K08") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(UCHAR_MAMEKEY(DEL)) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("90") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("bc") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LF") PORT_CHAR('\n') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8f") + + PORT_START("K09") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b1") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b0") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("87") + + PORT_START("K10") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("97") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("88") + + PORT_START("K11") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("03") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b5") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("84") + + PORT_START("K12") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("cd") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b7") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b6") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("83") + + PORT_START("K13") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(0xa3) // £ + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ea") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b8") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("82") + + PORT_START("K14") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') + 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_NAME("02") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ba") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("b9") + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("81") + + PORT_START("K15") + 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_A) PORT_CHAR('a') PORT_CHAR('A') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("c3") + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("bb") + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("80") INPUT_PORTS_END +int m3_state::kbd_t0_r() +{ + // outputs 26 alternating 0 and 1 to i/o port 0x00 when active + return 1; +} + +int m3_state::kbd_t1_r() +{ + // checked right before outputing a new keycode + return 0; +} + +uint8_t m3_state::kbd_p1_r() +{ + uint8_t data = 0; + + // ---4---- key down + // ----3--- repeat + // -----2-- control + // ------1- shift + // -------0 caps-lock, shift-lock? + + data |= BIT(m_keys[m_kbd_col]->read(), m_kbd_row) ? 0x00 : 0x10; + data |= m_special->read(); + + return data; +} + +void m3_state::kbd_p1_w(uint8_t data) +{ + // 765----- row select + + m_kbd_row = data >> 5; +} + +void m3_state::kbd_p2_w(uint8_t data) +{ + // 7654---- column select + // ----3210 unused + + m_kbd_col = data >> 4; +} + +void m3_state::kbd_data_w(uint8_t data) +{ + m_kbd_data = data; + + m_ppi[1]->pc2_w(0); + m_ppi[1]->pc2_w(1); +} + + +//************************************************************************** +// VIDEO EMULATION +//************************************************************************** + MC6845_UPDATE_ROW( m3_state::crtc_update_row ) { - rgb_t const *const pens = m_palette->palette()->entry_list_raw(); - uint32_t *p = &bitmap.pix(y); + rgb_t const *const pen = m_palette->palette()->entry_list_raw(); for (uint16_t x = 0; x < x_count; x++) { - uint8_t inv = (x == cursor_x) ? 0xff : 0; uint16_t mem = (ma + x) & 0x7ff; - uint8_t chr = m_p_videoram[mem]; + uint8_t chr = m_vram[mem]; + uint8_t gfx = m_chargen[((chr << 4) | ra) & 0x7ff]; + + // invert? if (BIT(chr, 7)) - { - inv ^= 0xff; - chr &= 0x7f; - } + gfx ^= 0xff; - /* get pattern of pixels for that character scanline */ - uint8_t gfx = m_p_chargen[(chr<<4) | ra] ^ inv; + // cursor? + if (x == cursor_x) + gfx ^= 0xff; - /* Display a scanline of a character (8 pixels) */ - *p++ = pens[BIT(gfx, 6)]; - *p++ = pens[BIT(gfx, 5)]; - *p++ = pens[BIT(gfx, 4)]; - *p++ = pens[BIT(gfx, 3)]; - *p++ = pens[BIT(gfx, 2)]; - *p++ = pens[BIT(gfx, 1)]; - *p++ = pens[BIT(gfx, 0)]; + // draw 7 pixels of the character + for (int i = 0; i < 7; i++) + bitmap.pix(y, x * 7 + i) = pen[BIT(gfx, 6 - i)]; } } -/* F4 Character Displayer */ static const gfx_layout charlayout = { - 7, 16, /* 7 x 16 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ + 7, 10, + 128, + 1, + { 0 }, { 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8 }, - 8*16 /* every char takes 16 bytes */ + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8 }, + 8*16 }; -static GFXDECODE_START( gfx_f4disp ) - GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 ) +static GFXDECODE_START(chars) + GFXDECODE_ENTRY("chargen", 0x0000, charlayout, 0, 1) GFXDECODE_END + +//************************************************************************** +// MACHINE EMULATION +//************************************************************************** + +void m3_state::ppi2_pa_w(uint8_t data) +{ + floppy_image_device *floppy = nullptr; + + // 7------- not used? + // -6------ buzzer + // --5----- not used? + // ---4---- unknown + // ----3--- unknown + // -----2-- unknown (side?) + // ------10 drive select + + logerror("ppi2_pa_w: %02x\n", data); + + if (BIT(data, 0) == 0) + floppy = m_floppy[0] ? m_floppy[0]->get_device() : nullptr; + + if (BIT(data, 1) == 0) + floppy = m_floppy[1] ? m_floppy[1]->get_device() : nullptr; + + m_fdc->set_floppy(floppy); + + // todo: side select, motor +} + +uint8_t m3_state::ppi2_pb_r() +{ + return m_kbd_data; +} + +void m3_state::machine_start() +{ + // register for save states + save_item(NAME(m_kbd_col)); + save_item(NAME(m_kbd_row)); + save_item(NAME(m_kbd_data)); +} + void m3_state::machine_reset() { m_maincpu->set_pc(0xf000); } + +//************************************************************************** +// MACHINE DEFINTIONS +//************************************************************************** + +static const z80_daisy_config daisy_chain[] = +{ + { "ctc" }, + { nullptr } +}; + +static DEVICE_INPUT_DEFAULTS_START( rs232_defaults ) + DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_9600 ) + DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_9600 ) + DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_7 ) + DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_EVEN ) + DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 ) +DEVICE_INPUT_DEFAULTS_END + +static void m3_floppies(device_slot_interface &device) +{ + device.option_add("sa400", FLOPPY_525_SSSD_35T); + device.option_add("sa410", FLOPPY_525_SSQD); + device.option_add("sa450", FLOPPY_525_DD); + device.option_add("sa460", FLOPPY_525_QD); + device.option_add("sa800", FLOPPY_8_SSDD); + device.option_add("sa850", FLOPPY_8_DSDD); +} + void m3_state::m3(machine_config &config) { - Z80(config, m_maincpu, 2'000'000); // no idea of clock. + Z80(config, m_maincpu, 2'500'000); // unknown divisor m_maincpu->set_addrmap(AS_PROGRAM, &m3_state::mem_map); m_maincpu->set_addrmap(AS_IO, &m3_state::io_map); + m_maincpu->set_daisy_config(daisy_chain); - /* video hardware */ + z80ctc_device& ctc(Z80CTC(config, "ctc", 0)); // unknown clock + ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); + ctc.set_clk<0>(2'457'600 / 2); // unknown clock. this gives the usart 9600 baud by default + ctc.zc_callback<0>().set("usart", FUNC(i8251_device::write_txc)); + ctc.zc_callback<0>().append("usart", FUNC(i8251_device::write_rxc)); + + I8255(config, m_ppi[0]); + + I8255(config, m_ppi[1]); + m_ppi[1]->out_pa_callback().set(FUNC(m3_state::ppi2_pa_w)); + m_ppi[1]->in_pb_callback().set(FUNC(m3_state::ppi2_pb_r)); + + i8251_device &usart(I8251(config, "usart", 0)); // unknown clock + usart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd)); + usart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts)); + usart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr)); + + rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr)); + rs232.set_option_device_input_defaults("printer", DEVICE_INPUT_DEFAULTS_NAME(rs232_defaults)); + rs232.rxd_handler().set("usart", FUNC(i8251_device::write_rxd)); + rs232.dsr_handler().set("usart", FUNC(i8251_device::write_dsr)); + rs232.cts_handler().set("usart", FUNC(i8251_device::write_cts)); + + // video hardware screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green())); - screen.set_refresh_hz(60); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not correct + screen.set_raw(10'920'000, 707, 0, 560, 309, 0, 240); // unknown clock, hand-tuned to ~50 fps screen.set_screen_update("crtc", FUNC(mc6845_device::screen_update)); - screen.set_size(640, 480); - screen.set_visarea(0, 639, 0, 479); - GFXDECODE(config, "gfxdecode", m_palette, gfx_f4disp); + + GFXDECODE(config, "gfxdecode", m_palette, chars); + PALETTE(config, m_palette, palette_device::MONOCHROME); - /* Devices */ - mc6845_device &crtc(MC6845(config, "crtc", 2'000'000)); // clk unknown + mc6845_device &crtc(MC6845(config, "crtc", 10'920'000 / 7)); // unknown clock crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(7); crtc.set_update_row_callback(FUNC(m3_state::crtc_update_row)); + crtc.out_vsync_callback().set("ctc", FUNC(z80ctc_device::trg2)); + + // floppy + FD1793(config, m_fdc, 2'000'000); // unknown clock + m_fdc->drq_wr_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); + FLOPPY_CONNECTOR(config, "fdc:0", m3_floppies, "sa850", floppy_image_device::default_floppy_formats); + FLOPPY_CONNECTOR(config, "fdc:1", m3_floppies, "sa850", floppy_image_device::default_floppy_formats); + + // keyboard + I8035(config, m_kbdmcu, 3'000'000); // unknown clock + m_kbdmcu->set_addrmap(AS_PROGRAM, &m3_state::kbd_mem_map); + m_kbdmcu->set_addrmap(AS_IO, &m3_state::kbd_io_map); + m_kbdmcu->p1_in_cb().set(FUNC(m3_state::kbd_p1_r)); + m_kbdmcu->p1_out_cb().set(FUNC(m3_state::kbd_p1_w)); + m_kbdmcu->p2_out_cb().set(FUNC(m3_state::kbd_p2_w)); + m_kbdmcu->t0_in_cb().set(FUNC(m3_state::kbd_t0_r)); + m_kbdmcu->t1_in_cb().set(FUNC(m3_state::kbd_t1_r)); } + +//************************************************************************** +// ROM DEFINITIONS +//************************************************************************** + ROM_START( m3 ) - ROM_REGION( 0x3000, "roms", 0 ) - ROM_LOAD( "bootstrap_prom,034.bin", 0x0000, 0x0800, CRC(7fdb051e) SHA1(7aa24d4f44b6a0c8f7f647667f4997432c186cac) ) - ROM_LOAD( "monitor_prom_v1.7_2015-12-09.bin", 0x0800, 0x0800, CRC(85b5c541) SHA1(92b4ec87a4d0d8c0f7b49eec0c5457f237de0a01) ) + ROM_REGION(0x1000, "maincpu", 0) + ROM_LOAD("bootstrap_prom_034.bin", 0x0000, 0x0800, CRC(7fdb051e) SHA1(7aa24d4f44b6a0c8f7f647667f4997432c186cac)) + + // Homebrew Monitor ROM, written by Steve Hunt. Uses the socket of the HDD ROM. + ROM_LOAD("monitor_prom_v17_2015-12-09.bin", 0x0800, 0x0800, CRC(85b5c541) SHA1(92b4ec87a4d0d8c0f7b49eec0c5457f237de0a01)) - ROM_REGION( 0x0800, "chargen", 0 ) // bit 7 set on every byte - bad? - ROM_LOAD( "6845crt_font_prom,033.bin", 0x0000, 0x0800, CRC(cc29f664) SHA1(4197530d9455d665fd4773f95bb6394f6b056dec) ) + ROM_REGION(0x800, "chargen", 0) + ROM_LOAD("6845crt_font_prom_033.bin", 0x000, 0x800, CRC(cc29f664) SHA1(4197530d9455d665fd4773f95bb6394f6b056dec)) - ROM_REGION( 0x0800, "keyboard", 0 ) - ROM_LOAD( "keyboard_prom,032.bin", 0x0000, 0x0800, CRC(21548355) SHA1(ee4ce4af9c78474263dd58e0f19e79e5b00926fa) ) + ROM_REGION(0x800, "keyboard", 0) + ROM_LOAD("keyboard_prom_032.bin", 0x000, 0x800, CRC(21548355) SHA1(ee4ce4af9c78474263dd58e0f19e79e5b00926fa)) ROM_END -COMP( 19??, m3, 0, 0, m3, m3, m3_state, empty_init, "LSI", "M3", MACHINE_IS_SKELETON ) + +} // anonymous namespace + + +//************************************************************************** +// SYSTEM DRIVERS +//************************************************************************** + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS +COMP( 1982, m3, 0, 0, m3, m3, m3_state, empty_init, "LSI", "M-THREE", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )