diff options
Diffstat (limited to 'src/mame/drivers/samcoupe.cpp')
-rw-r--r-- | src/mame/drivers/samcoupe.cpp | 1103 |
1 files changed, 732 insertions, 371 deletions
diff --git a/src/mame/drivers/samcoupe.cpp b/src/mame/drivers/samcoupe.cpp index 0ae77615a6c..c4a2b89905b 100644 --- a/src/mame/drivers/samcoupe.cpp +++ b/src/mame/drivers/samcoupe.cpp @@ -4,52 +4,509 @@ Miles Gordon Technology SAM Coupe - Notes: - ------ + Note: + - Early ROMs are buggy. Version 1.0 requires the command CALL 229385 + (256k machine) or CALL 491529 (512k machine) to execute the bootstrap. - 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: + TODO: + - Better timing, emulate memory contention - On a 256K SAM: CALL 229385 - Or on a 512K (or larger) machine: CALL 491529 - - - Todo: - ----- - - - Attribute read - - Better timing - - Harddisk interfaces + Hardware: + - Z80 at 6 MHz + - Custom ASIC handling the system and video + - SAA1099 sound + - XTAL X1: 24 MHz (system clock) + - XTAL X2: 4.433619 MHz (RGB encoder) ***************************************************************************/ -/* core includes */ #include "emu.h" -#include "includes/samcoupe.h" - #include "cpu/z80/z80.h" +#include "machine/bankdev.h" +#include "machine/ram.h" #include "sound/saa1099.h" - +#include "sound/spkrdev.h" +#include "imagedev/cassette.h" +#include "bus/samcoupe/drive/drive.h" +#include "bus/samcoupe/expansion/expansion.h" +#include "bus/samcoupe/mouse/mouseport.h" +#include "formats/tzx_cas.h" +#include "emupal.h" #include "screen.h" #include "softlist.h" #include "speaker.h" -#include "formats/tzx_cas.h" -#include "formats/coupedsk.h" -/*************************************************************************** - CONSTANTS -***************************************************************************/ +//************************************************************************** +// CONSTANTS +//************************************************************************** + +#define SAM_ENABLE_JOYSTICK (0) + +#define SAM_BLOCK 8 + +#define SAM_TOTAL_WIDTH SAM_BLOCK*96 +#define SAM_TOTAL_HEIGHT 312 +#define SAM_SCREEN_WIDTH SAM_BLOCK*64 +#define SAM_SCREEN_HEIGHT 192 +#define SAM_BORDER_LEFT SAM_BLOCK*4 +#define SAM_BORDER_RIGHT SAM_BLOCK*4 +#define SAM_BORDER_TOP 37 +#define SAM_BORDER_BOTTOM 46 + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class samcoupe_state : public driver_device +{ +public: + samcoupe_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_mem(*this, "mem"), + m_io(*this, "io"), + m_ram(*this, RAM_TAG), + m_bios(*this, "maincpu"), + m_screen(*this, "screen"), + m_speaker(*this, "speaker"), + m_cassette(*this, "cassette"), + m_mouse(*this, "mouseport"), + m_keyboard(*this, "kbd_%u", 0U), +#if SAM_ENABLE_JOYSTICK + m_joystick(*this, "joy_%u", 0U) +#endif + m_drive(*this, "drive%u", 1), + m_expansion(*this, "exp") + { + } -#define SAMCOUPE_XTAL_X1 24_MHz_XTAL -#define SAMCOUPE_XTAL_X2 4.433619_MHz_XTAL + void samcoupe(machine_config &config); + +protected: + virtual void machine_start() override; + virtual void machine_reset() override; + virtual void video_start() override; + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; + +private: + required_device<cpu_device> m_maincpu; + required_device<address_map_bank_device> m_mem; + required_device<address_map_bank_device> m_io; + required_device<ram_device> m_ram; + required_memory_region m_bios; + required_device<screen_device> m_screen; + required_device<speaker_sound_device> m_speaker; + required_device<cassette_image_device> m_cassette; + required_device<samcoupe_mouse_port_device> m_mouse; + required_ioport_array<9> m_keyboard; +#if SAM_ENABLE_JOYSTICK + required_ioport_array<2> m_joystick; +#endif + required_device_array<samcoupe_drive_port_device, 2> m_drive; + required_device<samcoupe_expansion_device> m_expansion; + + enum + { + TIMER_IRQ_OFF, + TIMER_VIDEO_UPDATE + }; + enum + { + INT_LINE = 0x01, + INT_MOUSE = 0x02, + INT_MIDIIN = 0x04, + INT_FRAME = 0x08, + INT_MIDIOUT = 0x10 + }; -/*************************************************************************** - TIMERS -***************************************************************************/ + // video + uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + + bitmap_ind16 m_bitmap; + + emu_timer *m_video_update_timer; + + uint8_t m_lmpr, m_hmpr, m_vmpr; /* memory pages */ + uint8_t m_border; /* border */ + uint8_t m_clut[16]; /* color lookup table, 16 entries */ + uint8_t m_line_int; /* line interrupt */ + uint8_t m_status; /* status register */ + + /* attribute */ + uint8_t m_attribute; + + uint8_t *m_videoram; + + uint8_t pen_r(offs_t offset); + void clut_w(offs_t offset, uint8_t data); + uint8_t status_r(offs_t offset); + void line_int_w(uint8_t data); + uint8_t lmpr_r(); + void lmpr_w(uint8_t data); + uint8_t hmpr_r(); + void hmpr_w(uint8_t data); + uint8_t vmpr_r(); + void vmpr_w(uint8_t data); + uint8_t midi_r(); + void midi_w(uint8_t data); + uint8_t keyboard_r(offs_t offset); + void border_w(uint8_t data); + uint8_t attributes_r(); + + void samcoupe_palette(palette_device &palette) const; + INTERRUPT_GEN_MEMBER(samcoupe_frame_interrupt); + TIMER_CALLBACK_MEMBER(irq_off); + TIMER_CALLBACK_MEMBER(sam_video_update_callback); + + void draw_mode4_line(int y, int hpos); + void draw_mode3_line(int y, int hpos); + void draw_mode12_block(bitmap_ind16 &bitmap, int vpos, int hpos, uint8_t mask); + void draw_mode2_line(int y, int hpos); + void draw_mode1_line(int y, int hpos); + + void samcoupe_irq(uint8_t src); + + // memory + uint8_t mem_r(offs_t offset); + void mem_w(offs_t offset, uint8_t data); + uint8_t io_r(offs_t offset); + void io_w(offs_t offset, uint8_t data); + + uint8_t mem_page_r(int page, offs_t offset); + void mem_page_w(int page, offs_t offset, uint8_t data); + + uint8_t mem_block_a_r(offs_t offset); + void mem_block_a_w(offs_t offset, uint8_t data); + uint8_t mem_block_b_r(offs_t offset); + void mem_block_b_w(offs_t offset, uint8_t data); + uint8_t mem_block_c_r(offs_t offset); + void mem_block_c_w(offs_t offset, uint8_t data); + uint8_t mem_block_d_r(offs_t offset); + void mem_block_d_w(offs_t offset, uint8_t data); + + void mem_map_base(address_map &map); + void mem_map(address_map &map); + void io_map_base(address_map &map); + void io_map(address_map &map); + + int m_pages; // total internal memory pages (16 or 32) +}; + + +//************************************************************************** +// ADDRESS MAPS +//************************************************************************** + +void samcoupe_state::mem_map_base(address_map &map) +{ + map(0x0000, 0xffff).rw(FUNC(samcoupe_state::mem_r), FUNC(samcoupe_state::mem_w)); +} + +void samcoupe_state::mem_map(address_map &map) +{ + map(0x0000, 0x3fff).ram().rw(FUNC(samcoupe_state::mem_block_a_r), FUNC(samcoupe_state::mem_block_a_w)); + map(0x4000, 0x7fff).ram().rw(FUNC(samcoupe_state::mem_block_b_r), FUNC(samcoupe_state::mem_block_b_w)); + map(0x8000, 0xbfff).ram().rw(FUNC(samcoupe_state::mem_block_c_r), FUNC(samcoupe_state::mem_block_c_w)); + map(0xc000, 0xffff).ram().rw(FUNC(samcoupe_state::mem_block_d_r), FUNC(samcoupe_state::mem_block_d_w)); +} + +void samcoupe_state::io_map_base(address_map &map) +{ + map(0x0000, 0xffff).rw(FUNC(samcoupe_state::io_r), FUNC(samcoupe_state::io_w)); +} + +void samcoupe_state::io_map(address_map &map) +{ + map.unmap_value_high(); + map(0x00e0, 0x00e7).mirror(0xff00).rw(m_drive[0], FUNC(samcoupe_drive_port_device::read), FUNC(samcoupe_drive_port_device::write)); + map(0x00e8, 0x00ef).mirror(0xff00).noprw(); // "print" - handled by expansion devices + map(0x00f0, 0x00f7).mirror(0xff00).rw(m_drive[1], FUNC(samcoupe_drive_port_device::read), FUNC(samcoupe_drive_port_device::write)); + map(0x00f8, 0x00f8).select(0xff00).rw(FUNC(samcoupe_state::pen_r), FUNC(samcoupe_state::clut_w)); + map(0x00f9, 0x00f9).select(0xff00).rw(FUNC(samcoupe_state::status_r), FUNC(samcoupe_state::line_int_w)); + map(0x00fa, 0x00fa).select(0xff00).rw(FUNC(samcoupe_state::lmpr_r), FUNC(samcoupe_state::lmpr_w)); + map(0x00fb, 0x00fb).select(0xff00).rw(FUNC(samcoupe_state::hmpr_r), FUNC(samcoupe_state::hmpr_w)); + map(0x00fc, 0x00fc).select(0xff00).rw(FUNC(samcoupe_state::vmpr_r), FUNC(samcoupe_state::vmpr_w)); + map(0x00fd, 0x00fd).select(0xff00).rw(FUNC(samcoupe_state::midi_r), FUNC(samcoupe_state::midi_w)); + map(0x00fe, 0x00fe).select(0xff00).rw(FUNC(samcoupe_state::keyboard_r), FUNC(samcoupe_state::border_w)); + map(0x00ff, 0x00ff).select(0xff00).r(FUNC(samcoupe_state::attributes_r)); + map(0x00ff, 0x00ff).mirror(0xfe00).w("saa1099", FUNC(saa1099_device::data_w)); + map(0x01ff, 0x01ff).mirror(0xfe00).w("saa1099", FUNC(saa1099_device::control_w)); +} + + +//************************************************************************** +// INPUT PORT DEFINITIONS +//************************************************************************** + +static INPUT_PORTS_START( samcoupe ) + PORT_START("kbd_0") + 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("kbd_1") + 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("kbd_2") + 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("kbd_3") + 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_ESC) 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("kbd_4") + 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("kbd_5") + 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("kbd_6") + 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("kbd_7") + 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("kbd_8") + 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)) + +#if SAM_ENABLE_JOYSTICK + /* Sam Coupe has single 9-pin ATARI-compatible connector but supports 2 joysticks via a splitter, + this works by using a different ground for each stick (pin 8: stick 1 gnd, pin 9: stick 2 gnd.) + Joysticks overlay number keys 6-0 for the stick 1 and 1-5 for stick 2 (same scheme as ZX Spectrum) */ + + PORT_START("joy_0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_8WAY PORT_PLAYER(1) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_8WAY PORT_PLAYER(1) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_8WAY PORT_PLAYER(1) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_8WAY PORT_PLAYER(1) + + PORT_START("joy_1") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_8WAY PORT_PLAYER(2) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_8WAY PORT_PLAYER(2) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_8WAY PORT_PLAYER(2) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_8WAY PORT_PLAYER(2) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) +#endif +INPUT_PORTS_END + + +//************************************************************************** +// VIDEO EMULATION +//************************************************************************** + +void samcoupe_state::samcoupe_palette(palette_device &palette) const +{ + for (int i = 0; i < 128; i++) + { + uint8_t const b = bitswap<3>(i, 4, 0, 3); // blue: bits 403 + uint8_t const r = bitswap<3>(i, 5, 1, 3); // red: bits 513 + uint8_t const g = bitswap<3>(i, 6, 2, 3); // green: bits 623 + + palette.set_pen_color(i, pal3bit(r), pal3bit(g), pal3bit(b)); + } +} + +void samcoupe_state::video_start() +{ + m_screen->register_screen_bitmap(m_bitmap); +} + +uint32_t samcoupe_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + copybitmap(bitmap, m_bitmap, 0, 0, 0, 0, cliprect); + return 0; +} + +void samcoupe_state::draw_mode4_line(int y, int hpos) +{ + /* get start address */ + uint8_t *vram = m_videoram + ((y - SAM_BORDER_TOP) * 128) + ((hpos - SAM_BORDER_LEFT) / 4); + + for (int i = 0; i < (SAM_BLOCK*2)/4; i++) + { + /* draw 2 pixels (doublewidth) */ + m_bitmap.pix16(y, hpos + i * 4 + 0) = m_clut[(*vram >> 4) & 0x0f]; + m_bitmap.pix16(y, hpos + i * 4 + 1) = m_clut[(*vram >> 4) & 0x0f]; + m_bitmap.pix16(y, hpos + i * 4 + 2) = m_clut[(*vram >> 0) & 0x0f]; + m_bitmap.pix16(y, hpos + i * 4 + 3) = m_clut[(*vram >> 0) & 0x0f]; + + /* move to next address */ + vram++; + + /* attribute register contains the third displayed byte */ + if (i == 2) + m_attribute = *vram; + } +} + +void samcoupe_state::draw_mode3_line(int y, int hpos) +{ + /* get start address */ + uint8_t *vram = m_videoram + ((y - SAM_BORDER_TOP) * 128) + ((hpos - SAM_BORDER_LEFT) / 4); + + for (int i = 0; i < (SAM_BLOCK*2)/4; i++) + { + /* draw 4 pixels */ + m_bitmap.pix16(y, hpos + i * 4 + 0) = m_clut[(*vram >> 6) & 0x03]; + m_bitmap.pix16(y, hpos + i * 4 + 1) = m_clut[(*vram >> 4) & 0x03]; + m_bitmap.pix16(y, hpos + i * 4 + 2) = m_clut[(*vram >> 2) & 0x03]; + m_bitmap.pix16(y, hpos + i * 4 + 3) = m_clut[(*vram >> 0) & 0x03]; + + /* move to next address */ + vram++; + + /* attribute register contains the third displayed byte */ + if (i == 2) + m_attribute = *vram; + } +} + +void samcoupe_state::draw_mode12_block(bitmap_ind16 &bitmap, int vpos, int hpos, uint8_t mask) +{ + /* extract colors from attribute */ + uint8_t ink = m_clut[(m_attribute >> 3) & 0x0f]; + uint8_t pap = m_clut[((m_attribute >> 3) & 0x08) | (m_attribute & 0x07)]; + + /* draw block of 8 pixels (doubled to 16) */ + for (int i = 0; i < SAM_BLOCK; i++) + { + bitmap.pix16(vpos, hpos + i*2 + 0) = BIT(mask, 7 - i) ? ink : pap; + bitmap.pix16(vpos, hpos + i*2 + 1) = BIT(mask, 7 - i) ? ink : pap; + } +} + +void samcoupe_state::draw_mode2_line(int y, int hpos) +{ + int cell = (y - SAM_BORDER_TOP) * 32 + (hpos - SAM_BORDER_LEFT) / SAM_BLOCK / 2; + + uint8_t mask = m_videoram[cell]; + m_attribute = m_videoram[cell + 0x2000]; + + draw_mode12_block(m_bitmap, y, hpos, mask); +} + +void samcoupe_state::draw_mode1_line(int y, int hpos) +{ + uint8_t mask = m_videoram[((((y - SAM_BORDER_TOP) & 0xc0) << 5) | (((y - SAM_BORDER_TOP) & 0x07) << 8) | (((y - SAM_BORDER_TOP) & 0x38) << 2)) + (hpos - SAM_BORDER_LEFT) / SAM_BLOCK / 2]; + m_attribute = m_videoram[32*192 + (((y - SAM_BORDER_TOP) & 0xf8) << 2) + (hpos - SAM_BORDER_LEFT) / SAM_BLOCK / 2]; + + draw_mode12_block(m_bitmap, y, hpos, mask); +} + +TIMER_CALLBACK_MEMBER(samcoupe_state::sam_video_update_callback) +{ + int vpos = m_screen->vpos(); + int hpos = m_screen->hpos(); + + int next_vpos = vpos; + int next_hpos = hpos + SAM_BLOCK*2; + + /* next scanline? */ + if (next_hpos >= SAM_BORDER_LEFT + SAM_SCREEN_WIDTH + SAM_BORDER_RIGHT) + { + next_vpos = (vpos + 1) % (SAM_BORDER_TOP + SAM_SCREEN_HEIGHT + SAM_BORDER_BOTTOM); + next_hpos = 0; + } + + /* display disabled? (only in mode 3 or 4) */ + if (BIT(m_vmpr, 6) && BIT(m_border, 7)) + { + m_bitmap.plot_box(hpos, vpos, SAM_BLOCK*2, 1, 0); + } + else + { + /* border area? */ + if (vpos < SAM_BORDER_TOP || vpos >= SAM_BORDER_TOP + SAM_SCREEN_HEIGHT || hpos < SAM_BORDER_LEFT || hpos >= SAM_BORDER_LEFT + SAM_SCREEN_WIDTH) + { + m_attribute = 0xff; + m_bitmap.plot_box(hpos, vpos, SAM_BLOCK*2, 1, m_clut[(m_border & 0x20) >> 2 | (m_border & 0x07)]); + } + else + { + /* main screen area */ + switch ((m_vmpr & 0x60) >> 5) + { + case 0: draw_mode1_line(vpos, hpos); break; + case 1: draw_mode2_line(vpos, hpos); break; + case 2: draw_mode3_line(vpos, hpos); break; + case 3: draw_mode4_line(vpos, hpos); break; + } + } + } + + /* do we need to trigger the scanline interrupt (interrupt happens at the start of the right border before the specified line)? */ + if (m_line_int < SAM_SCREEN_HEIGHT && hpos == SAM_BORDER_LEFT + SAM_SCREEN_WIDTH && vpos == (m_line_int + SAM_BORDER_TOP - 1)) + samcoupe_irq(INT_LINE); + + /* schedule next update */ + m_video_update_timer->adjust(m_screen->time_until_pos(next_vpos, next_hpos)); +} + + +//************************************************************************** +// MACHINE EMULATION +//************************************************************************** void samcoupe_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { @@ -58,9 +515,6 @@ void samcoupe_state::device_timer(emu_timer &timer, device_timer_id id, int para 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; @@ -69,47 +523,69 @@ void samcoupe_state::device_timer(emu_timer &timer, device_timer_id id, int para } } -/*************************************************************************** - I/O PORTS -***************************************************************************/ +TIMER_CALLBACK_MEMBER(samcoupe_state::irq_off) +{ + /* adjust STATUS register */ + m_status |= param; -uint8_t samcoupe_state::samcoupe_disk_r(offs_t offset) + /* clear interrupt */ + if ((m_status & 0x1f) == 0x1f) + m_maincpu->set_input_line(0, CLEAR_LINE); +} + +void samcoupe_state::samcoupe_irq(uint8_t src) { - /* 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; + /* 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); - if(floppy) - floppy->ss_w(BIT(offset, 2)); - m_fdc->set_floppy(floppy); + /* adjust STATUS register */ + m_status &= ~src; +} - /* bit 1 and 2 select the controller register */ - return m_fdc->read(offset & 0x03); +INTERRUPT_GEN_MEMBER(samcoupe_state::samcoupe_frame_interrupt) +{ + /* signal frame interrupt */ + samcoupe_irq(INT_FRAME); } -void samcoupe_state::samcoupe_disk_w(offs_t offset, uint8_t data) +void samcoupe_state::machine_start() { - /* 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; + // make sure the ram device is already running + if (!m_ram->started()) + throw device_missing_dependencies(); - if(floppy) - floppy->ss_w(BIT(offset, 2)); - m_fdc->set_floppy(floppy); + m_pages = m_ram->size() / 0x4000; // 16 or 32 - /* bit 1 and 2 select the controller register */ - return m_fdc->write(offset & 0x03, data); + /* schedule our video updates */ + m_video_update_timer = timer_alloc(TIMER_VIDEO_UPDATE); + m_video_update_timer->adjust(m_screen->time_until_pos(0, 0)); } -uint8_t samcoupe_state::samcoupe_pen_r(offs_t offset) +void samcoupe_state::machine_reset() +{ + m_lmpr = 0x0f; // ROM0 paged in, ROM1 paged out, RAM Banks + m_hmpr = 0x01; + vmpr_w(0x81); + m_line_int = 0xff; // line interrupts disabled + m_status = 0x1f; // no interrupts active +} + + +//************************************************************************** +// ASIC +//************************************************************************** + +uint8_t samcoupe_state::pen_r(offs_t offset) { uint8_t data; if (offset & 0x100) { + // HPEN int vpos = m_screen->vpos(); - /* return the current screen line or 192 for the border area */ + // 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 @@ -117,445 +593,325 @@ uint8_t samcoupe_state::samcoupe_pen_r(offs_t offset) } else { - /* horizontal position is encoded into bits 3 to 8 */ - data = m_screen->hpos() & 0xfc; + // LPEN + + // 765432-- screen horizontal position + // ------1- midi status (currently transferring) + // -------0 border clut bit 0 + + data = (m_screen->hpos() & 0xfc) | (0 << 1) | (m_border & 1); } return data; } -void samcoupe_state::samcoupe_clut_w(offs_t offset, uint8_t data) +void samcoupe_state::clut_w(offs_t offset, uint8_t data) { m_clut[(offset >> 8) & 0x0f] = data & 0x7f; } -uint8_t samcoupe_state::samcoupe_status_r(offs_t offset) +uint8_t samcoupe_state::status_r(offs_t offset) { + // 765----- keyboard matrix k8 to k6 + // ---4---- midi out interrupt + // ----3--- frame interrupt + // -----2-- midi in interrupt + // ------1- mouse interrupt + // -------0 line interrupt + 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 */ + for (int i = 0; i < 8; i++) + if (BIT(offset, i + 8) == 0) + data &= m_keyboard[i]->read() & 0xe0; + data |= m_status; return data; } -void samcoupe_state::samcoupe_line_int_w(uint8_t data) +void samcoupe_state::line_int_w(uint8_t data) { m_line_int = data; } -uint8_t samcoupe_state::samcoupe_lmpr_r() +uint8_t samcoupe_state::lmpr_r() { return m_lmpr; } -void samcoupe_state::samcoupe_lmpr_w(uint8_t data) +void samcoupe_state::lmpr_w(uint8_t data) { - address_space &space_program = m_maincpu->space(AS_PROGRAM); - m_lmpr = data; - samcoupe_update_memory(space_program); } -uint8_t samcoupe_state::samcoupe_hmpr_r() +uint8_t samcoupe_state::hmpr_r() { return m_hmpr; } -void samcoupe_state::samcoupe_hmpr_w(uint8_t data) +void samcoupe_state::hmpr_w(uint8_t data) { - address_space &space_program = m_maincpu->space(AS_PROGRAM); - m_hmpr = data; - samcoupe_update_memory(space_program); } -uint8_t samcoupe_state::samcoupe_vmpr_r() +uint8_t samcoupe_state::vmpr_r() { return m_vmpr; } -void samcoupe_state::samcoupe_vmpr_w(uint8_t data) +void samcoupe_state::vmpr_w(uint8_t data) { - address_space &space_program = m_maincpu->space(AS_PROGRAM); - m_vmpr = data; - samcoupe_update_memory(space_program); + + if (BIT(m_vmpr, 6)) /* if bit set in 2 bank screen mode */ + m_videoram = &m_ram->pointer()[(m_vmpr & 0x1e) << 14]; + else + m_videoram = &m_ram->pointer()[(m_vmpr & 0x1f) << 14]; } -uint8_t samcoupe_state::samcoupe_midi_r() +uint8_t samcoupe_state::midi_r() { - logerror("%s: read from midi port\n", machine().describe_context()); + logerror("Read from MIDI port\n"); return 0xff; } -void samcoupe_state::samcoupe_midi_w(uint8_t data) +void samcoupe_state::midi_w(uint8_t data) { - logerror("%s: write to midi port: 0x%02x\n", machine().describe_context(), data); + logerror("Write to MIDI port: 0x%02x\n", data); } -uint8_t samcoupe_state::samcoupe_keyboard_r(offs_t offset) +uint8_t samcoupe_state::keyboard_r(offs_t offset) { + // 7------- status bit external memory + // -6------ cassette input + // --5----- light pen input + // ---43210 keyboard matrix k5 to k1, mouse + 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; + for (int i = 0; i < 8; i++) + if (BIT(offset, i + 8) == 0) + data &= m_keyboard[i]->read() & 0x1f; + +#if SAM_ENABLE_JOYSTICK + if (BIT(offset, 12) == 0) data &= m_joystick[0]->read() & 0x1f; + if (BIT(offset, 11) == 0) data &= m_joystick[1]->read() & 0x1f; +#endif 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(); + data &= m_keyboard[8]->read() & 0x1f; + data &= m_mouse->read() & 0x1f; } - /* 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; - /* joysticks */ - if (!BIT(offset, 12)) data &= m_joy1->read() | (0xff ^ 0x1f); - if (!BIT(offset, 11)) data &= m_joy2->read() | (0xff ^ 0x1f); - return data; } -void samcoupe_state::samcoupe_border_w(uint8_t data) +void samcoupe_state::border_w(uint8_t data) { - m_border = data; + // 7------- screen off in mode 3/4 + // -6------ midi through + // --5--210 clut address for border color + // ---4---- beeper + // ----3--- cassette output - /* bit 3, cassette output */ - m_cassette->output( BIT(data, 3) ? -1.0 : +1.0); + m_border = data; - /* bit 4, beep */ + m_cassette->output(BIT(data, 3) ? -1.0 : +1.0); m_speaker->level_w(BIT(data, 4)); } -uint8_t samcoupe_state::samcoupe_attributes_r() +uint8_t samcoupe_state::attributes_r() { return m_attribute; } -WRITE_LINE_MEMBER(samcoupe_state::write_lpt1_busy) -{ - m_lpt1_busy = state; -} -uint8_t samcoupe_state::samcoupe_lpt1_busy_r() -{ - return m_lpt1_busy; -} +//************************************************************************** +// MEMORY +//************************************************************************** -void samcoupe_state::samcoupe_lpt1_strobe_w(uint8_t data) -{ - m_lpt1->write_strobe(data & 1); -} +//------------------------------------------------- +// mem_r/w - program space accesses +//------------------------------------------------- -DECLARE_WRITE_LINE_MEMBER(samcoupe_state::write_lpt2_busy) +uint8_t samcoupe_state::mem_r(offs_t offset) { - m_lpt2_busy = state; -} + uint8_t data = 0xff; -uint8_t samcoupe_state::samcoupe_lpt2_busy_r() -{ - return m_lpt2_busy; -} + int xmem = BIT(m_hmpr, 7) && BIT(offset, 15) ? 1 : 0; -void samcoupe_state::samcoupe_lpt2_strobe_w(uint8_t data) -{ - m_lpt2->write_strobe(data & 1); -} + m_expansion->xmem_w(xmem); -/*************************************************************************** - ADDRESS MAPS -***************************************************************************/ + data &= m_expansion->mreq_r(offset); -void samcoupe_state::samcoupe_mem(address_map &map) -{ - map(0x0000, 0x3fff).ram().rw(FUNC(samcoupe_state::sam_bank1_r), FUNC(samcoupe_state::sam_bank1_w)); // .bankrw("bank1"); - map(0x4000, 0x7fff).ram().rw(FUNC(samcoupe_state::sam_bank2_r), FUNC(samcoupe_state::sam_bank2_w)); // .bankrw("bank2"); - map(0x8000, 0xbfff).ram().rw(FUNC(samcoupe_state::sam_bank3_r), FUNC(samcoupe_state::sam_bank3_w)); // .bankrw("bank3"); - map(0xc000, 0xffff).ram().rw(FUNC(samcoupe_state::sam_bank4_r), FUNC(samcoupe_state::sam_bank4_w)); // .bankrw("bank4"); -} + if (xmem == 0) + data &= m_mem->read8(offset); -void samcoupe_state::samcoupe_io(address_map &map) -{ - map(0x0080, 0x0081).select(0xff00).w(FUNC(samcoupe_state::samcoupe_ext_mem_w)); - map(0x00e0, 0x00e7).select(0xff10).rw(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(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(FUNC(samcoupe_state::samcoupe_lpt2_busy_r), FUNC(samcoupe_state::samcoupe_lpt2_strobe_w)); - map(0x00f8, 0x00f8).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_pen_r), FUNC(samcoupe_state::samcoupe_clut_w)); - map(0x00f9, 0x00f9).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_status_r), FUNC(samcoupe_state::samcoupe_line_int_w)); - map(0x00fa, 0x00fa).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_lmpr_r), FUNC(samcoupe_state::samcoupe_lmpr_w)); - map(0x00fb, 0x00fb).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_hmpr_r), FUNC(samcoupe_state::samcoupe_hmpr_w)); - map(0x00fc, 0x00fc).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_vmpr_r), FUNC(samcoupe_state::samcoupe_vmpr_w)); - map(0x00fd, 0x00fd).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_midi_r), FUNC(samcoupe_state::samcoupe_midi_w)); - map(0x00fe, 0x00fe).select(0xff00).rw(FUNC(samcoupe_state::samcoupe_keyboard_r), FUNC(samcoupe_state::samcoupe_border_w)); - map(0x00ff, 0x00ff).select(0xff00).r(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)); + return data; } - -/*************************************************************************** - INTERRUPTS -***************************************************************************/ - -TIMER_CALLBACK_MEMBER(samcoupe_state::irq_off) +void samcoupe_state::mem_w(offs_t offset, uint8_t data) { - /* adjust STATUS register */ - m_status |= param; + int xmem = BIT(m_hmpr, 7) && BIT(offset, 15) ? 1 : 0; - /* clear interrupt */ - if ((m_status & 0x1f) == 0x1f) - m_maincpu->set_input_line(0, CLEAR_LINE); + m_expansion->xmem_w(xmem); -} - -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); + m_expansion->mreq_w(offset, data); - /* adjust STATUS register */ - m_status &= ~src; + if (xmem == 0) + m_mem->write8(offset, data); } -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) +//------------------------------------------------- +// io_r/w - i/o space accesses +//------------------------------------------------- - 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)) +uint8_t samcoupe_state::io_r(offs_t offset) +{ + uint8_t data = 0xff; - 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)) + m_expansion->print_w((offset & 0xf8) == 0xe8); // 0xe8 to 0xef - 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('\\') + data &= m_expansion->iorq_r(offset); + data &= m_io->read8(offset); - 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)) + return data; +} - 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) +void samcoupe_state::io_w(offs_t offset, uint8_t data) +{ + m_expansion->print_w((offset & 0xf8) == 0xe8); - PORT_START("mouse_x") - PORT_BIT(0xfff, 0x000, IPT_MOUSE_X) PORT_SENSITIVITY(50) PORT_KEYDELTA(0) PORT_REVERSE + m_expansion->iorq_w(offset, data); + m_io->write8(offset, data); +} - PORT_START("mouse_y") - PORT_BIT(0xfff, 0x000, IPT_MOUSE_Y) PORT_SENSITIVITY(50) PORT_KEYDELTA(0) +//------------------------------------------------- +// mem_page_r/w - read/write memory pages +//------------------------------------------------- - PORT_START("config") - PORT_CONFNAME(0x01, 0x00, "Real Time Clock") - PORT_CONFSETTING( 0x00, DEF_STR(None)) - PORT_CONFSETTING( 0x01, "SAMBUS") +uint8_t samcoupe_state::mem_page_r(int page, offs_t offset) +{ + if (page < m_pages) + return m_ram->pointer()[(page << 14) | offset]; + else + return 0xff; +} - /* Sam Coupe has single 9-pin ATARI-compatible connector but supports 2 joysticks via a splitter, - this works by using a different ground for each stick (pin 8: stick 1 gnd, pin 9: stick 2 gnd.) - Joysticks overlay number keys 6-0 for the stick 1 and 1-5 for stick 2 (same scheme as ZX Spectrum) */ +void samcoupe_state::mem_page_w(int page, offs_t offset, uint8_t data) +{ + if (page < m_pages) + m_ram->pointer()[(page << 14) | offset] = data; +} - PORT_START("joy_1") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_8WAY PORT_PLAYER(1) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_8WAY PORT_PLAYER(1) +//------------------------------------------------- +// mem_block_a/b/c/d_r/w - read/write memory blocks +//------------------------------------------------- - PORT_START("joy_2") - PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_8WAY PORT_PLAYER(2) - PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_8WAY PORT_PLAYER(2) - PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_8WAY PORT_PLAYER(2) - PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_8WAY PORT_PLAYER(2) - PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) -INPUT_PORTS_END +uint8_t samcoupe_state::mem_block_a_r(offs_t offset) +{ + int page = m_lmpr & 0x1f; + // ram enabled? + if (BIT(m_lmpr, 5)) + return mem_page_r(page, offset); + else + return m_bios->base()[offset]; +} -/*************************************************************************** - PALETTE -***************************************************************************/ +void samcoupe_state::mem_block_a_w(offs_t offset, uint8_t data) +{ + int page = m_lmpr & 0x1f; -/* - Decode colours for the palette as follows: + // not write protected? + if (BIT(m_lmpr, 7) == 0) + mem_page_w(page, offset, data); +} - bit 7 6 5 4 3 2 1 0 - nothing G+4 R+4 B+4 ALL+1 G+2 R+2 B+2 +uint8_t samcoupe_state::mem_block_b_r(offs_t offset) +{ + int page = ((m_lmpr & 0x1f) + 1) & 0x1f; + return mem_page_r(page, offset); +} -*/ -void samcoupe_state::samcoupe_palette(palette_device &palette) const +void samcoupe_state::mem_block_b_w(offs_t offset, uint8_t data) { - for (int i = 0; i < 128; i++) - { - uint8_t const b = bitswap<3>(i, 4, 0, 3); - uint8_t const r = bitswap<3>(i, 5, 1, 3); - uint8_t const g = bitswap<3>(i, 6, 2, 3); + int page = ((m_lmpr & 0x1f) + 1) & 0x1f; + mem_page_w(page, offset, data); +} - palette.set_pen_color(i, pal3bit(r), pal3bit(g), pal3bit(b)); - } +uint8_t samcoupe_state::mem_block_c_r(offs_t offset) +{ + int page = m_hmpr & 0x1f; + return mem_page_r(page, offset); } +void samcoupe_state::mem_block_c_w(offs_t offset, uint8_t data) +{ + int page = m_hmpr & 0x1f; + mem_page_w(page, offset, data); +} -/*************************************************************************** - MACHINE DRIVERS -***************************************************************************/ +uint8_t samcoupe_state::mem_block_d_r(offs_t offset) +{ + int page = ((m_hmpr & 0x1f) + 1) & 0x1f; -FLOPPY_FORMATS_MEMBER( samcoupe_state::floppy_formats ) - FLOPPY_MGT_FORMAT -FLOPPY_FORMATS_END + // ram enabled? + if (BIT(m_lmpr, 6) == 0) + return mem_page_r(page, offset); + else + return m_bios->base()[0x4000 + offset]; +} -static void samcoupe_floppies(device_slot_interface &device) +void samcoupe_state::mem_block_d_w(offs_t offset, uint8_t data) { - device.option_add("35dd", FLOPPY_35_DD); + int page = ((m_hmpr & 0x1f) + 1) & 0x1f; + mem_page_w(page, offset, data); } + +//************************************************************************** +// MACHINE DEFINTIONS +//************************************************************************** + void samcoupe_state::samcoupe(machine_config &config) { - /* basic machine hardware */ - Z80(config, m_maincpu, SAMCOUPE_XTAL_X1 / 4); /* 6 MHz */ - m_maincpu->set_addrmap(AS_PROGRAM, &samcoupe_state::samcoupe_mem); - m_maincpu->set_addrmap(AS_IO, &samcoupe_state::samcoupe_io); + Z80(config, m_maincpu, 24_MHz_XTAL / 4); // 6 MHz + m_maincpu->set_addrmap(AS_PROGRAM, &samcoupe_state::mem_map_base); + m_maincpu->set_addrmap(AS_IO, &samcoupe_state::io_map_base); m_maincpu->set_vblank_int("screen", FUNC(samcoupe_state::samcoupe_frame_interrupt)); - /* video hardware */ + ADDRESS_MAP_BANK(config, m_mem); + m_mem->set_addrmap(AS_PROGRAM, &samcoupe_state::mem_map); + m_mem->set_data_width(8); + m_mem->set_addr_width(16); + + ADDRESS_MAP_BANK(config, m_io); + m_io->set_addrmap(AS_PROGRAM, &samcoupe_state::io_map); + m_io->set_data_width(8); + m_io->set_addr_width(16); + + RAM(config, RAM_TAG).set_default_size("512K").set_extra_options("256K"); + + // video hardware SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_raw(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); + m_screen->set_raw(24_MHz_XTAL / 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); m_screen->set_screen_update(FUNC(samcoupe_state::screen_update)); m_screen->set_palette("palette"); PALETTE(config, "palette", FUNC(samcoupe_state::samcoupe_palette), 128); - /* devices */ - CENTRONICS(config, m_lpt1, centronics_devices, "printer"); - m_lpt1->busy_handler().set(FUNC(samcoupe_state::write_lpt1_busy)); - - output_latch_device &lpt1_data_out(OUTPUT_LATCH(config, "lpt1_data_out")); - m_lpt1->set_output_latch(lpt1_data_out); - - CENTRONICS(config, m_lpt2, centronics_devices, "printer"); - m_lpt2->busy_handler().set(FUNC(samcoupe_state::write_lpt2_busy)); - - output_latch_device &lpt2_data_out(OUTPUT_LATCH(config, "lpt2_data_out")); - m_lpt2->set_output_latch(lpt2_data_out); - - MSM6242(config, m_rtc, 32.768_kHz_XTAL); - - /* sound hardware */ + // sound hardware SPEAKER(config, "mono").front_center(); SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50); - SAA1099(config, "saa1099", SAMCOUPE_XTAL_X1/3).add_route(ALL_OUTPUTS, "mono", 0.50); /* 8 MHz */ + SAA1099(config, "saa1099", 24_MHz_XTAL / 3).add_route(ALL_OUTPUTS, "mono", 0.50); // 8 MHz CASSETTE(config, m_cassette); m_cassette->set_formats(tzx_cassette_formats); @@ -564,19 +920,21 @@ void samcoupe_state::samcoupe(machine_config &config) m_cassette->set_interface("samcoupe_cass"); SOFTWARE_LIST(config, "cass_list").set_original("samcoupe_cass"); - WD1772(config, m_fdc, SAMCOUPE_XTAL_X1/3); - FLOPPY_CONNECTOR(config, "wd1772:0", samcoupe_floppies, "35dd", samcoupe_state::floppy_formats).enable_sound(true); - FLOPPY_CONNECTOR(config, "wd1772:1", samcoupe_floppies, "35dd", samcoupe_state::floppy_formats).enable_sound(true); + // expansion ports + SAMCOUPE_MOUSE_PORT(config, m_mouse, samcoupe_mouse_modules); + + SAMCOUPE_DRIVE_PORT(config, m_drive[0], samcoupe_drive_modules, "floppy"); + SAMCOUPE_DRIVE_PORT(config, m_drive[1], samcoupe_drive_modules, "floppy"); + SOFTWARE_LIST(config, "flop_list").set_original("samcoupe_flop"); - /* internal ram */ - RAM(config, RAM_TAG).set_default_size("512K").set_extra_options("256K,1280K,1536K,2304K,2560K,3328K,3584K,4352K,4608K"); + SAMCOUPE_EXPANSION(config, m_expansion, samcoupe_expansion_modules); } -/*************************************************************************** - ROM DEFINITIONS -***************************************************************************/ +//************************************************************************** +// ROM DEFINTIONS +//************************************************************************** /* The bios is actually 32K. This is the combined version of the two old 16K MESS roms. @@ -613,8 +971,11 @@ ROM_START( samcoupe ) ROMX_LOAD( "rom04.z5", 0x0000, 0x8000, CRC(f439e84e) SHA1(8bc457a5c764b0bb0aa7008c57f28c30248fc6a4), ROM_BIOS(12) ) ROM_SYSTEM_BIOS( 13, "01", "v0.1" ) ROMX_LOAD( "rom01.z5", 0x0000, 0x8000, CRC(c04acfdf) SHA1(8976ed005c14905eec1215f0a5c28aa686a7dda2), ROM_BIOS(13) ) + ROM_SYSTEM_BIOS( 14, "atom", "ATOM HDD Interface Auto Boot" ) + ROMX_LOAD( "atom.z5", 0x0000, 0x8000, CRC(dec75f58) SHA1(cd342579f066c0863e4f769c2e6757085e21b0a1), ROM_BIOS(14) ) ROM_END + /*************************************************************************** GAME DRIVERS ***************************************************************************/ |