diff options
Diffstat (limited to 'src/mess/drivers/vic20.c')
-rw-r--r-- | src/mess/drivers/vic20.c | 859 |
1 files changed, 0 insertions, 859 deletions
diff --git a/src/mess/drivers/vic20.c b/src/mess/drivers/vic20.c deleted file mode 100644 index 498e22c9b11..00000000000 --- a/src/mess/drivers/vic20.c +++ /dev/null @@ -1,859 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/* - TODO: - - - C1540 is not working currently - - mos6560_port_r/w should respond at 0x1000-0x100f - - VIC21 (built in 21K ram) - -*/ - -#include "includes/vic20.h" - - - -QUICKLOAD_LOAD_MEMBER( vic20_state, cbm_vc20 ) -{ - return general_cbm_loadsnap(image, file_type, quickload_size, m_maincpu->space(AS_PROGRAM), 0, cbm_quick_sethiaddress); -} - -//************************************************************************** -// MEMORY MANAGEMENT -//************************************************************************** - -//------------------------------------------------- -// read - -//------------------------------------------------- - -READ8_MEMBER( vic20_state::read ) -{ - UINT8 data = m_vic->bus_r(); - - int ram1 = 1, ram2 = 1, ram3 = 1; - int blk1 = 1, blk2 = 1, blk3 = 1, blk5 = 1; - int io2 = 1, io3 = 1; - - switch ((offset >> 13) & 0x07) - { - case BLK0: - switch ((offset >> 10) & 0x07) - { - case RAM0: - data = m_ram->pointer()[offset & 0x3ff]; - break; - - case RAM1: ram1 = 0; break; - case RAM2: ram2 = 0; break; - case RAM3: ram3 = 0; break; - - default: - data = m_ram->pointer()[0x400 + (offset & 0xfff)]; - break; - } - break; - - case BLK1: blk1 = 0; break; - case BLK2: blk2 = 0; break; - case BLK3: blk3 = 0; break; - - case BLK4: - switch ((offset >> 10) & 0x07) - { - default: - data = m_charom[offset & 0xfff]; - break; - - case IO0: - if (BIT(offset, 4)) - { - data = m_via1->read(space, offset & 0x0f); - } - else if (BIT(offset, 5)) - { - data = m_via2->read(space, offset & 0x0f); - } - else if (offset >= 0x9000 && offset < 0x9010) - { - data = m_vic->read(space, offset & 0x0f); - } - break; - - case COLOR: - data = m_color_ram[offset & 0x3ff]; - break; - - case IO2: io2 = 0; break; - case IO3: io3 = 0; break; - } - break; - - case BLK5: blk5 = 0; break; - - case BLK6: - data = m_basic[offset & 0x1fff]; - break; - - case BLK7: - data = m_kernal[offset & 0x1fff]; - break; - } - - return m_exp->cd_r(space, offset & 0x1fff, data, ram1, ram2, ram3, blk1, blk2, blk3, blk5, io2, io3); -} - - -//------------------------------------------------- -// write - -//------------------------------------------------- - -WRITE8_MEMBER( vic20_state::write ) -{ - int ram1 = 1, ram2 = 1, ram3 = 1; - int blk1 = 1, blk2 = 1, blk3 = 1, blk5 = 1; - int io2 = 1, io3 = 1; - - switch ((offset >> 13) & 0x07) - { - case BLK0: - switch ((offset >> 10) & 0x07) - { - case RAM0: - m_ram->pointer()[offset] = data; - break; - - case RAM1: ram1 = 0; break; - case RAM2: ram2 = 0; break; - case RAM3: ram3 = 0; break; - - default: - m_ram->pointer()[0x400 + (offset & 0xfff)] = data; - break; - } - break; - - case BLK1: blk1 = 0; break; - case BLK2: blk2 = 0; break; - case BLK3: blk3 = 0; break; - - case BLK4: - switch ((offset >> 10) & 0x07) - { - case IO0: - if (BIT(offset, 4)) - { - m_via1->write(space, offset & 0x0f, data); - } - else if (BIT(offset, 5)) - { - m_via2->write(space, offset & 0x0f, data); - } - else if (offset >= 0x9000 && offset < 0x9010) - { - m_vic->write(space, offset & 0x0f, data); - } - break; - - case COLOR: - m_color_ram[offset & 0x3ff] = data & 0x0f; - break; - - case IO2: io2 = 0; break; - case IO3: io3 = 0; break; - } - break; - - case BLK5: blk5 = 0; break; - } - - m_exp->cd_w(space, offset & 0x1fff, data, ram1, ram2, ram3, blk1, blk2, blk3, blk5, io2, io3); -} - - -//------------------------------------------------- -// vic_videoram_r - -//------------------------------------------------- - -READ8_MEMBER( vic20_state::vic_videoram_r ) -{ - int ram1 = 1, ram2 = 1, ram3 = 1; - int blk1 = 1, blk2 = 1, blk3 = 1, blk5 = 1; - int io2 = 1, io3 = 1; - - UINT8 data = 0; - - if (BIT(offset, 13)) - { - switch ((offset >> 10) & 0x07) - { - case RAM0: - data = m_ram->pointer()[offset & 0x3ff]; - break; - - case RAM1: ram1 = 0; break; - case RAM2: ram2 = 0; break; - case RAM3: ram3 = 0; break; - - default: - data = m_ram->pointer()[0x400 + (offset & 0xfff)]; - break; - } - } - else - { - data = m_charom[offset & 0xfff]; - } - - return m_exp->cd_r(space, offset & 0x1fff, data, ram1, ram2, ram3, blk1, blk2, blk3, blk5, io2, io3); -} - - - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -//------------------------------------------------- -// ADDRESS_MAP( vic20_mem ) -//------------------------------------------------- - -static ADDRESS_MAP_START( vic20_mem, AS_PROGRAM, 8, vic20_state ) - AM_RANGE(0x0000, 0xffff) AM_READWRITE(read, write) -ADDRESS_MAP_END - - -//------------------------------------------------- -// ADDRESS_MAP( vic_videoram_map ) -//------------------------------------------------- - -static ADDRESS_MAP_START( vic_videoram_map, AS_0, 8, vic20_state ) - AM_RANGE(0x0000, 0x3fff) AM_READ(vic_videoram_r) -ADDRESS_MAP_END - - -//------------------------------------------------- -// ADDRESS_MAP( vic_colorram_map ) -//------------------------------------------------- - -static ADDRESS_MAP_START( vic_colorram_map, AS_1, 8, vic20_state ) - AM_RANGE(0x000, 0x3ff) AM_RAM AM_SHARE("color_ram") -ADDRESS_MAP_END - - - -//************************************************************************** -// INPUT PORTS -//************************************************************************** - -//------------------------------------------------- -// INPUT_PORTS( vic20 ) -//------------------------------------------------- - -static INPUT_PORTS_START( vic20 ) - PORT_START( "ROW0" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Del Inst") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('\xA3') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('+') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') - PORT_BIT( 0x04, 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_3) PORT_CHAR('3') PORT_CHAR('#') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') - - PORT_START( "ROW1" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('*') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('I') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('R') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('W') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xE2\x86\x90") PORT_CODE(KEYCODE_TILDE) PORT_CHAR(0x2190) - - PORT_START( "ROW2" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Crsr Right Left") PORT_CODE(KEYCODE_RCONTROL) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR(']') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('L') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('G') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('A') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR(UCHAR_SHIFT_2) - - PORT_START( "ROW3" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Crsr Down Up") PORT_CODE(KEYCODE_RALT) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_CHAR(UCHAR_MAMEKEY(UP)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('N') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('V') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Shift (Left)") PORT_CODE(KEYCODE_LSHIFT) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Stop Run") PORT_CODE(KEYCODE_HOME) - - PORT_START( "ROW4" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CHAR(UCHAR_MAMEKEY(F2)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Shift (Right)") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('M') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('B') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') - - PORT_START( "ROW5" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CHAR(UCHAR_MAMEKEY(F4)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('=') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('[') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('K') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('H') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('F') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('S') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CBM") PORT_CODE(KEYCODE_LCONTROL) - - PORT_START( "ROW6" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_CHAR(UCHAR_MAMEKEY(F6)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("\xE2\x86\x91 Pi") PORT_CODE(KEYCODE_DEL) PORT_CHAR(0x2191) PORT_CHAR(0x03C0) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('O') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('U') - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('T') - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') - - PORT_START( "ROW7" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_CHAR(UCHAR_MAMEKEY(F8)) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Home Clr") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(HOME)) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('-') - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') - PORT_BIT( 0x04, 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_4) PORT_CHAR('4') PORT_CHAR('$') - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') - - PORT_START( "RESTORE" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RESTORE") PORT_CODE(KEYCODE_PRTSCR) PORT_WRITE_LINE_DEVICE_MEMBER(M6522_1_TAG, via6522_device, write_ca1) - - PORT_START( "LOCK" ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) - PORT_BIT( 0x7f, IP_ACTIVE_LOW, IPT_UNUSED ) -INPUT_PORTS_END - - -//------------------------------------------------- -// INPUT_PORTS( vic1001 ) -//------------------------------------------------- - -static INPUT_PORTS_START( vic1001 ) - PORT_INCLUDE( vic20 ) - - PORT_MODIFY( "ROW0" ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('\xA5') -INPUT_PORTS_END - - -//------------------------------------------------- -// INPUT_PORTS( vic20s ) -//------------------------------------------------- - -static INPUT_PORTS_START( vic20s ) - PORT_INCLUDE( vic20 ) - - PORT_MODIFY( "ROW0" ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR(':') PORT_CHAR('*') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') - - PORT_MODIFY( "ROW1" ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('@') - - PORT_MODIFY( "ROW2" ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(0x00C4) - - PORT_MODIFY( "ROW5" ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(';') PORT_CHAR('+') - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(0x00D6) - - PORT_MODIFY( "ROW6" ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00C5) - - PORT_MODIFY( "ROW7" ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') -INPUT_PORTS_END - - - -//************************************************************************** -// DEVICE CONFIGURATION -//************************************************************************** - -READ8_MEMBER( vic20_state::via1_pa_r ) -{ - /* - - bit description - - PA0 SERIAL CLK IN - PA1 SERIAL DATA IN - PA2 JOY 0 (UP) - PA3 JOY 1 (DOWN) - PA4 JOY 2 (LEFT) - PA5 LITE PEN (FIRE) - PA6 CASS SWITCH - PA7 - - */ - - UINT8 data = 0; - - // serial clock in - data |= m_iec->clk_r(); - - // serial data in - data |= m_iec->data_r() << 1; - - // joystick / user port - UINT8 joy = m_joy->joy_r(); - - data |= (m_user_joy0 && BIT(joy, 0)) << 2; - data |= (m_user_joy1 && BIT(joy, 1)) << 3; - data |= (m_user_joy2 && BIT(joy, 2)) << 4; - data |= (m_user_light_pen && BIT(joy, 5)) << 5; - - // cassette switch - data |= (m_user_cassette_switch && m_cassette->sense_r()) << 6; - - return data; -} - -WRITE8_MEMBER( vic20_state::via1_pa_w ) -{ - /* - - bit description - - PA0 - PA1 - PA2 - PA3 - PA4 - PA5 LITE PEN (FIRE) - PA6 - PA7 SERIAL ATN OUT - - */ - - // light pen strobe - m_user->write_7(BIT(data, 5)); - m_vic->lp_w(BIT(data, 5)); - - // serial attention out - m_user->write_9(!BIT(data, 7)); - m_iec->atn_w(!BIT(data, 7)); -} - -WRITE8_MEMBER( vic20_state::via1_pb_w ) -{ - m_user->write_c((data>>0)&1); - m_user->write_d((data>>1)&1); - m_user->write_e((data>>2)&1); - m_user->write_f((data>>3)&1); - m_user->write_h((data>>4)&1); - m_user->write_j((data>>5)&1); - m_user->write_k((data>>6)&1); - m_user->write_l((data>>7)&1); -} - -READ8_MEMBER( vic20_state::via2_pa_r ) -{ - /* - - bit description - - PA0 ROW 0 - PA1 ROW 1 - PA2 ROW 2 - PA3 ROW 3 - PA4 ROW 4 - PA5 ROW 5 - PA6 ROW 6 - PA7 ROW 7 - - */ - - UINT8 data = 0xff; - - if (!BIT(m_key_col, 0)) data &= m_row0->read(); - if (!BIT(m_key_col, 1)) data &= m_row1->read(); - if (!BIT(m_key_col, 2)) data &= m_row2->read(); - if (!BIT(m_key_col, 3)) data &= m_row3->read(); - if (!BIT(m_key_col, 4)) data &= m_row4->read(); - if (!BIT(m_key_col, 5)) data &= m_row5->read(); - if (!BIT(m_key_col, 6)) data &= m_row6->read(); - if (!BIT(m_key_col, 7)) data &= m_row7->read(); - - return data; -} - -READ8_MEMBER( vic20_state::via2_pb_r ) -{ - /* - - bit description - - PB0 COL 0 - PB1 COL 1 - PB2 COL 2 - PB3 COL 3 - PB4 COL 4 - PB5 COL 5 - PB6 COL 6 - PB7 COL 7, JOY 3 (RIGHT) - - */ - - UINT8 data = 0xff; - - // joystick - UINT8 joy = m_joy->joy_r(); - - data &= BIT(joy, 3) << 7; - - return data; -} - -WRITE8_MEMBER( vic20_state::via2_pb_w ) -{ - /* - - bit description - - PB0 COL 0 - PB1 COL 1 - PB2 COL 2 - PB3 COL 3, CASS WRITE - PB4 COL 4 - PB5 COL 5 - PB6 COL 6 - PB7 COL 7 - - */ - - // cassette write - m_cassette->write(BIT(data, 3)); - - // keyboard column - m_key_col = data; -} - -WRITE_LINE_MEMBER( vic20_state::via2_ca2_w ) -{ - // serial clock out - m_iec->clk_w(!state); -} - -WRITE_LINE_MEMBER( vic20_state::via2_cb2_w ) -{ - // serial data out - m_iec->data_w(!state); -} - - -//------------------------------------------------- -// VIC20_EXPANSION_INTERFACE( expansion_intf ) -//------------------------------------------------- - -WRITE_LINE_MEMBER( vic20_state::exp_reset_w ) -{ - if (!state) - { - machine_reset(); - } -} - - -//************************************************************************** -// MACHINE INITIALIZATION -//************************************************************************** - -//------------------------------------------------- -// MACHINE_START( vic20 ) -//------------------------------------------------- - -void vic20_state::machine_start() -{ - // initialize memory - UINT8 data = 0xff; - - for (offs_t offset = 0; offset < m_ram->size(); offset++) - { - m_ram->pointer()[offset] = data; - if (!(offset % 64)) data ^= 0xff; - } - - // state saving - save_item(NAME(m_key_col)); - save_item(NAME(m_light_pen)); - save_item(NAME(m_user_joy0)); - save_item(NAME(m_user_joy1)); - save_item(NAME(m_user_joy2)); - save_item(NAME(m_user_light_pen)); - save_item(NAME(m_user_cassette_switch)); -} - - -void vic20_state::machine_reset() -{ - m_maincpu->reset(); - - m_vic->reset(); - m_via1->reset(); - m_via2->reset(); - - m_iec->reset(); - m_exp->reset(); - - m_user->write_3(0); - m_user->write_3(1); -} - -WRITE_LINE_MEMBER(vic20_state::write_user_joy0) -{ - m_user_joy0 = state; -} - -WRITE_LINE_MEMBER(vic20_state::write_user_joy1) -{ - m_user_joy1 = state; -} - -WRITE_LINE_MEMBER(vic20_state::write_user_joy2) -{ - m_user_joy2 = state; -} - -WRITE_LINE_MEMBER(vic20_state::write_light_pen) -{ - m_light_pen = state; - m_vic->lp_w(m_light_pen && m_user_light_pen); -} - -WRITE_LINE_MEMBER(vic20_state::write_user_light_pen) -{ - m_user_light_pen = state; - m_vic->lp_w(m_light_pen && m_user_light_pen); -} - -WRITE_LINE_MEMBER(vic20_state::write_user_cassette_switch) -{ - m_user_cassette_switch = state; -} - -//************************************************************************** -// MACHINE DRIVERS -//************************************************************************** - -//------------------------------------------------- -// MACHINE_CONFIG( vic20_common ) -//------------------------------------------------- - -static MACHINE_CONFIG_START( vic20, vic20_state ) - // devices - MCFG_DEVICE_ADD(M6522_1_TAG, VIA6522, 0) - MCFG_VIA6522_READPA_HANDLER(READ8(vic20_state, via1_pa_r)) - MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(vic20_state, via1_pa_w)) - MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(vic20_state, via1_pb_w)) - MCFG_VIA6522_CB1_HANDLER(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_b)) - MCFG_VIA6522_CA2_HANDLER(DEVWRITELINE(PET_DATASSETTE_PORT_TAG, pet_datassette_port_device, motor_w)) - MCFG_VIA6522_CB2_HANDLER(DEVWRITELINE(PET_USER_PORT_TAG, pet_user_port_device, write_m)) - MCFG_VIA6522_IRQ_HANDLER(DEVWRITELINE(M6502_TAG, m6502_device, nmi_line)) - - MCFG_DEVICE_ADD(M6522_2_TAG, VIA6522, 0) - MCFG_VIA6522_READPA_HANDLER(READ8(vic20_state, via2_pa_r)) - MCFG_VIA6522_READPB_HANDLER(READ8(vic20_state, via2_pb_r)) - MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(vic20_state, via2_pb_w)) - MCFG_VIA6522_CA2_HANDLER(WRITELINE(vic20_state, via2_ca2_w)) - MCFG_VIA6522_CB2_HANDLER(WRITELINE(vic20_state, via2_cb2_w)) - MCFG_VIA6522_IRQ_HANDLER(DEVWRITELINE(M6502_TAG, m6502_device, irq_line)) - - MCFG_PET_DATASSETTE_PORT_ADD(PET_DATASSETTE_PORT_TAG, cbm_datassette_devices, "c1530", DEVWRITELINE(M6522_2_TAG, via6522_device, write_ca1)) - MCFG_CBM_IEC_ADD("c1541") - MCFG_CBM_IEC_BUS_SRQ_CALLBACK(DEVWRITELINE(M6522_2_TAG, via6522_device, write_cb1)) - - MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, "joy") - MCFG_VCS_CONTROL_PORT_TRIGGER_CALLBACK(WRITELINE(vic20_state, write_light_pen)) - - MCFG_PET_USER_PORT_ADD(PET_USER_PORT_TAG, vic20_user_port_cards, NULL) - MCFG_PET_USER_PORT_3_HANDLER(WRITELINE(vic20_state, exp_reset_w)) - MCFG_PET_USER_PORT_4_HANDLER(WRITELINE(vic20_state, write_user_joy0)) - MCFG_PET_USER_PORT_5_HANDLER(WRITELINE(vic20_state, write_user_joy1)) - MCFG_PET_USER_PORT_6_HANDLER(WRITELINE(vic20_state, write_user_joy2)) - MCFG_PET_USER_PORT_7_HANDLER(WRITELINE(vic20_state, write_user_light_pen)) - MCFG_PET_USER_PORT_8_HANDLER(WRITELINE(vic20_state, write_user_cassette_switch)) - MCFG_PET_USER_PORT_B_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_cb1)) - MCFG_PET_USER_PORT_C_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb0)) - MCFG_PET_USER_PORT_D_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb1)) - MCFG_PET_USER_PORT_E_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb2)) - MCFG_PET_USER_PORT_F_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb3)) - MCFG_PET_USER_PORT_H_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb4)) - MCFG_PET_USER_PORT_J_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb5)) - MCFG_PET_USER_PORT_K_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb6)) - MCFG_PET_USER_PORT_L_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_pb7)) - MCFG_PET_USER_PORT_M_HANDLER(DEVWRITELINE(M6522_1_TAG, via6522_device, write_cb2)) - - MCFG_QUICKLOAD_ADD("quickload", vic20_state, cbm_vc20, "p00,prg", CBM_QUICKLOAD_DELAY_SECONDS) - - // software lists - MCFG_SOFTWARE_LIST_ADD("cart_list", "vic1001_cart") - MCFG_SOFTWARE_LIST_ADD("cass_list", "vic1001_cass") - MCFG_SOFTWARE_LIST_ADD("flop_list", "vic1001_flop") - - // internal ram - MCFG_RAM_ADD(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("5K") -MACHINE_CONFIG_END - - -//------------------------------------------------- -// MACHINE_CONFIG( ntsc ) -//------------------------------------------------- - -static MACHINE_CONFIG_DERIVED( ntsc, vic20 ) - // basic machine hardware - MCFG_CPU_ADD(M6502_TAG, M6502, MOS6560_CLOCK) - MCFG_CPU_PROGRAM_MAP(vic20_mem) - MCFG_M6502_DISABLE_DIRECT() // address decoding is 100% dynamic, no RAM/ROM banks - - // video/sound hardware - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_MOS6560_ADD(M6560_TAG, SCREEN_TAG, MOS6560_CLOCK, vic_videoram_map, vic_colorram_map) - MCFG_MOS6560_POTX_CALLBACK(DEVREAD8(CONTROL1_TAG, vcs_control_port_device, pot_x_r)) - MCFG_MOS6560_POTY_CALLBACK(DEVREAD8(CONTROL1_TAG, vcs_control_port_device, pot_y_r)) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) - - // devices - MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6560_CLOCK, vic20_expansion_cards, NULL) - MCFG_VIC20_EXPANSION_SLOT_IRQ_CALLBACK(INPUTLINE(M6502_TAG, M6502_IRQ_LINE)) - MCFG_VIC20_EXPANSION_SLOT_NMI_CALLBACK(INPUTLINE(M6502_TAG, M6502_NMI_LINE)) - MCFG_VIC20_EXPANSION_SLOT_RES_CALLBACK(WRITELINE(vic20_state, exp_reset_w)) - - // software lists - MCFG_SOFTWARE_LIST_FILTER("cart_list", "NTSC") - MCFG_SOFTWARE_LIST_FILTER("cass_list", "NTSC") - MCFG_SOFTWARE_LIST_FILTER("flop_list", "NTSC") -MACHINE_CONFIG_END - - -//------------------------------------------------- -// MACHINE_CONFIG( pal ) -//------------------------------------------------- - -static MACHINE_CONFIG_DERIVED( pal, vic20 ) - // basic machine hardware - MCFG_CPU_ADD(M6502_TAG, M6502, MOS6561_CLOCK) - MCFG_CPU_PROGRAM_MAP(vic20_mem) - MCFG_M6502_DISABLE_DIRECT() // address decoding is 100% dynamic, no RAM/ROM banks - - // video/sound hardware - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_MOS6561_ADD(M6560_TAG, SCREEN_TAG, MOS6561_CLOCK, vic_videoram_map, vic_colorram_map) - MCFG_MOS6560_POTX_CALLBACK(DEVREAD8(CONTROL1_TAG, vcs_control_port_device, pot_x_r)) - MCFG_MOS6560_POTY_CALLBACK(DEVREAD8(CONTROL1_TAG, vcs_control_port_device, pot_y_r)) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) - - // devices - MCFG_VIC20_EXPANSION_SLOT_ADD(VIC20_EXPANSION_SLOT_TAG, MOS6561_CLOCK, vic20_expansion_cards, NULL) - MCFG_VIC20_EXPANSION_SLOT_IRQ_CALLBACK(INPUTLINE(M6502_TAG, M6502_IRQ_LINE)) - MCFG_VIC20_EXPANSION_SLOT_NMI_CALLBACK(INPUTLINE(M6502_TAG, M6502_NMI_LINE)) - MCFG_VIC20_EXPANSION_SLOT_RES_CALLBACK(WRITELINE(vic20_state, exp_reset_w)) - - // software lists - MCFG_SOFTWARE_LIST_FILTER("cart_list", "PAL") - MCFG_SOFTWARE_LIST_FILTER("cass_list", "PAL") - MCFG_SOFTWARE_LIST_FILTER("flop_list", "PAL") -MACHINE_CONFIG_END - - - -//************************************************************************** -// ROM DEFINITIONS -//************************************************************************** - -//------------------------------------------------- -// ROM( vic1001 ) -//------------------------------------------------- - -ROM_START( vic1001 ) - ROM_REGION( 0x2000, "basic", 0 ) - ROM_LOAD( "901486-01", 0x0000, 0x2000, CRC(db4c43c1) SHA1(587d1e90950675ab6b12d91248a3f0d640d02e8d) ) - - ROM_REGION( 0x2000, "kernal", 0 ) - ROM_LOAD( "901486-02", 0x0000, 0x2000, CRC(336900d7) SHA1(c9ead45e6674d1042ca6199160e8583c23aeac22) ) - - ROM_REGION( 0x1000, "charom", 0 ) - ROM_LOAD( "901460-02", 0x0000, 0x1000, CRC(fcfd8a4b) SHA1(dae61ac03065aa2904af5c123ce821855898c555) ) -ROM_END - - -//------------------------------------------------- -// ROM( vic20 ) -//------------------------------------------------- - -ROM_START( vic20 ) - ROM_REGION( 0x2000, "basic", 0 ) - ROM_LOAD( "901486-01.ue11", 0x0000, 0x2000, CRC(db4c43c1) SHA1(587d1e90950675ab6b12d91248a3f0d640d02e8d) ) - - ROM_REGION( 0x2000, "kernal", 0 ) - ROM_SYSTEM_BIOS( 0, "cbm", "Original" ) - ROMX_LOAD( "901486-06.ue12", 0x0000, 0x2000, CRC(e5e7c174) SHA1(06de7ec017a5e78bd6746d89c2ecebb646efeb19), ROM_BIOS(1) ) - ROM_SYSTEM_BIOS( 1, "jiffydos", "JiffyDOS" ) - ROMX_LOAD( "jiffydos vic-20 ntsc.ue12", 0x0000, 0x2000, CRC(683a757f) SHA1(83fb83e97b5a840311dbf7e1fe56fe828f41936d), ROM_BIOS(2) ) - - ROM_REGION( 0x1000, "charom", 0 ) - ROM_LOAD( "901460-03.ud7", 0x0000, 0x1000, CRC(83e032a6) SHA1(4fd85ab6647ee2ac7ba40f729323f2472d35b9b4) ) -ROM_END - - -//------------------------------------------------- -// ROM( vic20p ) -//------------------------------------------------- - -ROM_START( vic20p ) - ROM_REGION( 0x2000, "basic", 0 ) - ROM_LOAD( "901486-01.ue11", 0x0000, 0x2000, CRC(db4c43c1) SHA1(587d1e90950675ab6b12d91248a3f0d640d02e8d) ) - - ROM_REGION( 0x2000, "kernal", 0 ) - ROM_SYSTEM_BIOS( 0, "cbm", "Original" ) - ROMX_LOAD( "901486-07.ue12", 0x0000, 0x2000, CRC(4be07cb4) SHA1(ce0137ed69f003a299f43538fa9eee27898e621e), ROM_BIOS(1) ) - ROM_SYSTEM_BIOS( 1, "jiffydos", "JiffyDOS" ) - ROMX_LOAD( "jiffydos vic-20 pal.ue12", 0x0000, 0x2000, CRC(705e7810) SHA1(5a03623a4b855531b8bffd756f701306f128be2d), ROM_BIOS(2) ) - - ROM_REGION( 0x1000, "charom", 0 ) - ROM_LOAD( "901460-03.ud7", 0x0000, 0x1000, CRC(83e032a6) SHA1(4fd85ab6647ee2ac7ba40f729323f2472d35b9b4) ) -ROM_END - - -//------------------------------------------------- -// ROM( vic20_se ) -//------------------------------------------------- - -ROM_START( vic20_se ) - ROM_REGION( 0x2000, "basic", 0 ) - ROM_LOAD( "901486-01.ue11", 0x0000, 0x2000, CRC(db4c43c1) SHA1(587d1e90950675ab6b12d91248a3f0d640d02e8d) ) - - ROM_REGION( 0x2000, "kernal", 0 ) - ROM_LOAD( "nec22081.206", 0x0000, 0x2000, CRC(b2a60662) SHA1(cb3e2f6e661ea7f567977751846ce9ad524651a3) ) - - ROM_REGION( 0x1000, "charom", 0 ) - ROM_LOAD( "nec22101.207", 0x0000, 0x1000, CRC(d808551d) SHA1(f403f0b0ce5922bd61bbd768bdd6f0b38e648c9f) ) -ROM_END - - - -//************************************************************************** -// GAME DRIVERS -//************************************************************************** - -// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS -COMP( 1980, vic1001, 0, 0, ntsc, vic1001, driver_device, 0, "Commodore Business Machines", "VIC-1001 (Japan)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) -COMP( 1981, vic20, vic1001, 0, ntsc, vic20, driver_device, 0, "Commodore Business Machines", "VIC-20 (NTSC)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) -COMP( 1981, vic20p, vic1001, 0, pal, vic20, driver_device, 0, "Commodore Business Machines", "VIC-20 / VC-20 (PAL)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) -COMP( 1981, vic20_se, vic1001, 0, pal, vic20s, driver_device, 0, "Commodore Business Machines", "VIC-20 (Sweden/Finland)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) |