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-rw-r--r--src/mess/drivers/vic20.c859
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 )