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|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*
RCA COSMAC VIP
PCB Layout
----------
|-------------------------------------------------------------------------------|
| |---------------CN1---------------| |---------------CN2---------------| |
|CN6 |
| |---------| |---------| 4050 4050 |
| | CDPR566 | | CDP1861 | CN3 |
| |---------| |---------| |
| CN4 |
| 7805 |---------| |--------| |
| 2114 3.521280MHz | 4508 | | 4508 | CN5 |
| |---------| |--------| |
| 2114 |--------| |
| 7474 7400 4049 4051 4028 | 4515 | CA3401 |
| 2114 |--------| |
| |-------------| |
| 2114 | CDP1802 | |
| |-------------| LED1 |
| 2114 |
| LED2 |
| 2114 4556 4042 |
| LED3 |
| 555 2114 4011 4013 |
| SW1 |
| 2114 |
| |
|-------------------------------------------------------------------------------|
Notes:
All IC's shown.
CDPR566 - Programmed CDP1832 512 x 8-Bit Static ROM
2114 - 2114 4096 Bit (1024x4) NMOS Static RAM
CDP1802 - RCA CDP1802 CMOS 8-Bit Microprocessor
CDP1861 - RCA CDP1861 Video Display Controller
CA3401 - Quad Single-Supply Op-Amp
CN1 - expansion interface connector
CN2 - parallel I/O interface connector
CN3 - video connector
CN4 - tape in connector
CN5 - tape out connector
CN6 - power connector
LED1 - power led
LED2 - Q led
LED3 - tape led
SW1 - Run/Reset switch
*/
/*
TODO:
- ASCII keyboard
- cassette loading
- 20K RAM for Floating Point BASIC
- VP-111 has 1K RAM, no byte I/O, no expansion
- VP-601/611 ASCII Keyboard (VP-601 58 keys, VP611 58 keys + 16 keys numerical keypad)
- VP-700 Expanded Tiny Basic Board (4 KB ROM expansion)
*/
/*
VP-711 COSMAC MicroComputer $199
(CDP18S711) Features RCA COSMAC microprocessor. 2K RAM, expandable to
32K (4K on-board). Built-in cassette interface and video interface.
16 key hexidecimal keypad. ROM operating system. CHIP-8 language and
machine language. Tone generator and speaker. 8-bit input port, 8-bit
output port, and full system expansion connector. Power supply and 3
manuals (VP-311, VP-320, MPM201 B) included. Completely assembled.
VP-44 VP-711 RAM On-Board Expansion Kit $36
Four type 2114 RAM IC's for expanding VP-711 on-board memory
to 4K bytes.
VP-111 MicroComputer $99
RCA COSMAC microprocessor. 1 K RAM expandable to 32K (4K On-
board). Built-in cassette interface and video interface. 16 key
Hexidecimal keypad. ROM operating system. CHIP-8 language and Machine
language. Tone generator. Assembled - user must install Cables
(supplied) and furnish 5 volt power supply and speaker.
VP-114 VP-111 Expansion Kit $76
Includes I/O ports, system expansion connector and additional
3K of RAM. Expands VP-111 to VP-711 capability.
VP-155 VP-111 Cover $12
Attractive protective plastic cover for VP-111.
VP-3301 Interactive Data Terminal Available Approx. 6 Months
Microprocessor Based Computer Terminal with keyboard, video
Interface and color graphics - includes full resident and user
Definable character font, switch selectable configuration, cursor
Control, reverse video and many other features.
VP-590 Color Board $69
Displays VP-711 output in color! Program control of four
Background colors and eight foreground colors. CHIP-8X language
Adds color commands. Includes two sockets for VP-580 Expansion
Keyboards.
VP-595 Simple Sound Board $30
Provides 256 different frequencies in place of VP-711 single-
tone Output. Use with VP-590 Color Board for simultaneous color and
Sound. Great for simple music or sound effects! Includes speaker.
VP-550 Super Sound Board $49
Turn your VP-711 into a music synthesizer! Two independent
sound Channels. Frequency, duration and amplitude envelope (voice) of
Each channel under program control. On-board tempo control. Provision
for multi-track recording or slaving VP-711's. Output drives audio
preamp. Does not permit simultaneous video display.
VP-551 Super Sound 4-Channel Expander Package $74
VP-551 provides four (4) independent sound channels with
frequency duration and amplitude envelope for each channel. Package
includes modified VP-550 super sound board, VP-576 two board
expander, data cassette with 4-channel PIN-8 program, and instruction
manual. Requires 4K RAM system and your VP-550 Super Sound Board.
VP-570 Memory Expansion Board $95
Plug-in 4K static RAM memory. Jumper locates RAM in any 4K
block in first 32K of VP-711 memory space.
VP-580 Auxiliary Keyboard $20
Adds two-player interactive game capability to VP-711 16-key
keypad with cable. Connects to sockets on VP-590 Color Board or VP-
585 Keyboard Interface.
VP-585 Keyboard Interface Board $15
Interfaces two VP-580 Expansion Keyboards directly to the VP-
711. Not required when VP-590 Color Board is used.
VP-560 EPROM Board $34
Interfaces two Intel 2716 EPROMs to VP-711. Places EPROMs any-
where in memory space. Can also re-allocate on-board RAM in memory
space.
VP-565 EPROM Programmer Board $99
Programs Intel 2716 EPROMs with VP-711. Complete with software
to program, copy, and verify. On-board generation of all programming
voltages.
VP-575 Expansion Board $59
Plug-in board with 4 buffered and one unbuffered socket.
Permits use of up to 5 Accessory Boards in VP-711 Expansion Socket.
VP-576 Two-Board Expander $20
Plug-in board for VP-711 I/O or Expansion Socket permits use
of two Accessory Boards in either location.
VP-601* ASCII Keyboard. 7-Bit Parallel Output $69
Fully encoded, 128-character ASCII alphanumeric keyboard. 58
light touch keys (2 user defined). Selectable "Upper-Case-Only".
VP-606* ASCII Keyboard - Serial Output $99
Same as VP-601. EIA RS232C compatible, 20 mA current loop and
TTL outputs. Six selectable baud rates. Available mid-1980.
VP-611* ASCII/Numeric Keyboard. 7-Bit Parallel Output $89
ASCII Keyboard identical to VP-601 plus 16 key numeric entry
keyboard for easier entry of numbers.
VP-616* ASCII/Numeric Keyboard - Serial Output $119
Same as VP-611. EIA RS232C compatible, 20 mA current loop and
TTL outputs. Six selectable baud rates. Available mid-1980.
VP-620 Cable: ASCII Keyboards to VP-711 $20
Flat ribbon cable, 24" length, for connecting VP-601 or VP-
611 and VP-711. Includes matching connector on both ends.
VP-623 Cable: Parallel Output ASCII Keyboards $20
Flat ribbon cable, 36" length with mating connector for VP-
601 or VP-611 Keyboards. Other end is unterminated.
VP-626 Connector: Serial Output ASCII Keyboards & Terminal $7
25 pin solderable male "D" connector mates to VP-606, VP-616
or VP-3301.
TC1210 9" Video Monitor $195
Ideal, low-cost monochrome monitor for displaying the video
output from your microcomputer or terminal.
TC1217 17" Video Monitor $480
A really BIG monochrome monitor for use with your
microcomputer or terminal 148 sq. in. pictures.
VP-700 Tiny BASIC ROM Board $39
Run Tiny BASIC on your VP-711! All BASIC code stored in ROM.
Requires separate ASCII keyboard.
VP-701 Floating Point BASIC for VP-711 $49
16K bytes on cassette tape, includes floating point and
integer math, string capability and color graphics. More than 70
commands and statements. Available mid-1980.
VP-710 Game Manual $10
More exciting games for your VP-711! Includes Blackjack,
Biorythm, Pinball, Bowling and 10 others.
VP-720 Game Manual II More exciting games. Available mid-1980. $15
VP-311 VP-711 Instruction Manual (Included with VP-711) $5
VP-320 VP-711 User Guide Manual (Included with VP-711) $5
MPM-201B CDP1802 User Manual (Included with VP-711) $5
* Quantities of 15 or more available less case and speaker (Assembled
keypad and circut board only). Price on request.
*/
#include "includes/vip.h"
//**************************************************************************
// MACROS/CONSTANTS
//**************************************************************************
enum
{
LED_POWER = 0,
LED_Q,
LED_TAPE
};
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
//-------------------------------------------------
// update_interrupts -
//-------------------------------------------------
void vip_state::update_interrupts()
{
int irq = m_vdc_int || m_exp_int;
int dma_in = m_exp_dma_in;
int dma_out = m_vdc_dma_out || m_exp_dma_out;
m_maincpu->set_input_line(COSMAC_INPUT_LINE_INT, irq);
m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAIN, dma_in);
m_maincpu->set_input_line(COSMAC_INPUT_LINE_DMAOUT, dma_out);
}
//-------------------------------------------------
// read -
//-------------------------------------------------
READ8_MEMBER( vip_state::read )
{
int cs = BIT(offset, 15) || m_8000;
int cdef = !((offset >= 0xc00) && (offset < 0x1000));
int minh = 0;
UINT8 data = m_exp->program_r(space, offset, cs, cdef, &minh);
if (cs)
{
data = m_rom->base()[offset & 0x1ff];
}
else if (!minh)
{
data = m_ram->pointer()[offset & m_ram->mask()];
}
return data;
}
//-------------------------------------------------
// write -
//-------------------------------------------------
WRITE8_MEMBER( vip_state::write )
{
int cs = BIT(offset, 15) || m_8000;
int cdef = !((offset >= 0xc00) && (offset < 0x1000));
int minh = 0;
m_exp->program_w(space, offset, data, cdef, &minh);
if (!cs && !minh)
{
m_ram->pointer()[offset & m_ram->mask()] = data;
}
}
//-------------------------------------------------
// io_r -
//-------------------------------------------------
READ8_MEMBER( vip_state::io_r )
{
UINT8 data = m_exp->io_r(space, offset);
switch (offset)
{
case 1:
m_vdc->disp_on_w(1);
m_vdc->disp_on_w(0);
break;
case 3:
data = m_byteio_data;
break;
}
if (BIT(offset, 2))
{
m_8000 = 0;
}
return data;
}
//-------------------------------------------------
// io_w -
//-------------------------------------------------
WRITE8_MEMBER( vip_state::io_w )
{
m_exp->io_w(space, offset, data);
switch (offset)
{
case 1:
m_vdc->disp_off_w(1);
m_vdc->disp_off_w(0);
break;
case 2:
m_keylatch = data & 0x0f;
break;
case 3:
m_byteio->out_w(data);
break;
}
if (BIT(offset, 2))
{
m_8000 = 0;
}
}
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
//-------------------------------------------------
// ADDRESS_MAP( vip_mem )
//-------------------------------------------------
static ADDRESS_MAP_START( vip_mem, AS_PROGRAM, 8, vip_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0xffff) AM_READWRITE(read, write)
ADDRESS_MAP_END
//-------------------------------------------------
// ADDRESS_MAP( vip_io )
//-------------------------------------------------
static ADDRESS_MAP_START( vip_io, AS_IO, 8, vip_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x00, 0x07) AM_READWRITE(io_r, io_w)
ADDRESS_MAP_END
//**************************************************************************
// INPUT PORTS
//**************************************************************************
//-------------------------------------------------
// INPUT_PORTS( vip )
//-------------------------------------------------
INPUT_CHANGED_MEMBER( vip_state::reset_w )
{
m_exp->run_w(newval);
if (oldval && !newval)
{
machine_reset();
}
}
INPUT_CHANGED_MEMBER( vip_state::beeper_w )
{
m_beeper->set_output_gain(0, newval ? 0.80 : 0);
}
static INPUT_PORTS_START( vip )
PORT_START("KEYPAD")
PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("0 MW") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1')
PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2')
PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3')
PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4')
PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5')
PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6')
PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7')
PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8')
PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9')
PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("A MR") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("B TR") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("F TW") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
PORT_START("RUN")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("Run/Reset") PORT_CODE(KEYCODE_R) PORT_TOGGLE PORT_CHANGED_MEMBER(DEVICE_SELF, vip_state, reset_w, 0)
PORT_START("BEEPER")
PORT_CONFNAME( 0x01, 0x01, "Internal Speaker" ) PORT_CHANGED_MEMBER(DEVICE_SELF, vip_state, beeper_w, 0)
PORT_CONFSETTING( 0x00, DEF_STR( Off ) )
PORT_CONFSETTING( 0x01, DEF_STR( On ) )
INPUT_PORTS_END
//**************************************************************************
// DEVICE CONFIGURATION
//**************************************************************************
//-------------------------------------------------
// COSMAC_INTERFACE( cosmac_intf )
//-------------------------------------------------
READ_LINE_MEMBER( vip_state::clear_r )
{
return BIT(m_run->read(), 0);
}
READ_LINE_MEMBER( vip_state::ef1_r )
{
return m_vdc_ef1 || m_exp->ef1_r();
}
READ_LINE_MEMBER( vip_state::ef2_r )
{
set_led_status(machine(), LED_TAPE, m_cassette->input() > 0);
return (m_cassette->input() < 0) ? ASSERT_LINE : CLEAR_LINE;
}
READ_LINE_MEMBER( vip_state::ef3_r )
{
return !BIT(m_keypad->read(), m_keylatch) || m_byteio_ef3 || m_exp_ef3;
}
READ_LINE_MEMBER( vip_state::ef4_r )
{
return m_byteio_ef4 || m_exp_ef4;
}
WRITE_LINE_MEMBER( vip_state::q_w )
{
// sound output
discrete_sound_w(m_beeper, machine().driver_data()->generic_space(), NODE_01, state);
// Q led
set_led_status(machine(), LED_Q, state);
// tape output
m_cassette->output(state ? 1.0 : -1.0);
// expansion
m_exp->q_w(state);
}
READ8_MEMBER( vip_state::dma_r )
{
return m_exp->dma_r(space, offset);
}
WRITE8_MEMBER( vip_state::dma_w )
{
m_vdc->dma_w(space, offset, data);
m_exp->dma_w(space, offset, data);
}
WRITE8_MEMBER( vip_state::sc_w )
{
m_exp->sc_w(data);
}
//-------------------------------------------------
// CDP1861_INTERFACE( vdc_intf )
//-------------------------------------------------
WRITE_LINE_MEMBER( vip_state::vdc_int_w )
{
m_vdc_int = state;
update_interrupts();
}
WRITE_LINE_MEMBER( vip_state::vdc_dma_out_w )
{
m_vdc_dma_out = state;
update_interrupts();
}
WRITE_LINE_MEMBER( vip_state::vdc_ef1_w )
{
m_vdc_ef1 = state;
}
UINT32 vip_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
m_vdc->screen_update(screen, bitmap, cliprect);
m_exp->screen_update(screen, bitmap, cliprect);
return 0;
}
//-------------------------------------------------
// DISCRETE_SOUND( vip )
//-------------------------------------------------
static const discrete_555_desc vip_ca555_a =
{
DISC_555_OUT_SQW | DISC_555_OUT_DC,
5, // B+ voltage of 555
DEFAULT_555_VALUES
};
static DISCRETE_SOUND_START( vip )
DISCRETE_INPUT_LOGIC(NODE_01)
DISCRETE_555_ASTABLE_CV(NODE_02, NODE_01, 470, RES_M(1), CAP_P(470), NODE_01, &vip_ca555_a)
DISCRETE_OUTPUT(NODE_02, 5000)
DISCRETE_SOUND_END
//-------------------------------------------------
// cassette_interface vip_cassette_interface
//-------------------------------------------------
static const cassette_interface vip_cassette_interface =
{
cassette_default_formats,
NULL,
(cassette_state)(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED),
"vip_cass",
NULL
};
//-------------------------------------------------
// VIP_BYTEIO_PORT_INTERFACE( byteio_intf )
//-------------------------------------------------
WRITE_LINE_MEMBER( vip_state::byteio_inst_w )
{
if (!state)
{
m_byteio_data = m_byteio->in_r();
}
}
//-------------------------------------------------
// VIP_EXPANSION_INTERFACE( expansion_intf )
//-------------------------------------------------
WRITE_LINE_MEMBER( vip_state::exp_int_w )
{
m_exp_int = state;
update_interrupts();
}
WRITE_LINE_MEMBER( vip_state::exp_dma_out_w )
{
m_exp_dma_out = state;
update_interrupts();
}
WRITE_LINE_MEMBER( vip_state::exp_dma_in_w )
{
m_exp_dma_in = state;
update_interrupts();
}
//**************************************************************************
// MACHINE INITIALIZATION
//**************************************************************************
//-------------------------------------------------
// MACHINE_START( vip )
//-------------------------------------------------
void vip_state::machine_start()
{
UINT8 *ram = m_ram->pointer();
// randomize RAM contents
for (UINT16 addr = 0; addr < m_ram->size(); addr++)
{
ram[addr] = machine().rand() & 0xff;
}
// turn on power LED
set_led_status(machine(), LED_POWER, 1);
// reset sound
discrete_sound_w(m_beeper, machine().driver_data()->generic_space(), NODE_01, 0);
// state saving
save_item(NAME(m_8000));
save_item(NAME(m_vdc_int));
save_item(NAME(m_vdc_dma_out));
save_item(NAME(m_vdc_ef1));
save_item(NAME(m_exp_int));
save_item(NAME(m_exp_dma_out));
save_item(NAME(m_exp_dma_in));
save_item(NAME(m_byteio_ef3));
save_item(NAME(m_byteio_ef4));
save_item(NAME(m_exp_ef1));
save_item(NAME(m_exp_ef3));
save_item(NAME(m_exp_ef4));
save_item(NAME(m_keylatch));
save_item(NAME(m_byteio_data));
}
void vip_state::machine_reset()
{
// reset the VDC
m_vdc->reset();
// force map ROM
m_8000 = 1;
// internal speaker
m_beeper->set_output_gain(0, m_io_beeper->read() ? 0.80 : 0);
// clear byte I/O latch
m_byteio_data = 0;
}
//-------------------------------------------------
// QUICKLOAD_LOAD_MEMBER( vip_state, vip )
//-------------------------------------------------
QUICKLOAD_LOAD_MEMBER( vip_state, vip )
{
UINT8 *ram = m_ram->pointer();
UINT8 *chip8_ptr = NULL;
int chip8_size = 0;
int size = image.length();
if (strcmp(image.filetype(), "c8") == 0)
{
/* CHIP-8 program */
chip8_ptr = m_chip8->base();
chip8_size = m_chip8->bytes();
}
else if (strcmp(image.filename(), "c8x") == 0)
{
/* CHIP-8X program */
chip8_ptr = m_chip8x->base();
chip8_size = m_chip8x->bytes();
}
if ((size + chip8_size) > m_ram->size())
{
return IMAGE_INIT_FAIL;
}
if (chip8_size > 0)
{
/* copy CHIP-8 interpreter to RAM */
memcpy(ram, chip8_ptr, chip8_size);
}
/* load image to RAM */
image.fread(ram + chip8_size, size);
return IMAGE_INIT_PASS;
}
//**************************************************************************
// MACHINE DRIVERS
//**************************************************************************
//-------------------------------------------------
// MACHINE_CONFIG( vip )
//-------------------------------------------------
static MACHINE_CONFIG_START( vip, vip_state )
// basic machine hardware
MCFG_CPU_ADD(CDP1802_TAG, CDP1802, XTAL_3_52128MHz/2)
MCFG_CPU_PROGRAM_MAP(vip_mem)
MCFG_CPU_IO_MAP(vip_io)
MCFG_COSMAC_WAIT_CALLBACK(VCC)
MCFG_COSMAC_CLEAR_CALLBACK(READLINE(vip_state, clear_r))
MCFG_COSMAC_EF1_CALLBACK(READLINE(vip_state, ef1_r))
MCFG_COSMAC_EF2_CALLBACK(READLINE(vip_state, ef2_r))
MCFG_COSMAC_EF3_CALLBACK(READLINE(vip_state, ef3_r))
MCFG_COSMAC_EF4_CALLBACK(READLINE(vip_state, ef4_r))
MCFG_COSMAC_Q_CALLBACK(WRITELINE(vip_state, q_w))
MCFG_COSMAC_DMAR_CALLBACK(READ8(vip_state, dma_r))
MCFG_COSMAC_DMAW_CALLBACK(WRITE8(vip_state, dma_w))
MCFG_COSMAC_SC_CALLBACK(WRITE8(vip_state, sc_w))
// video hardware
MCFG_CDP1861_SCREEN_ADD(CDP1861_TAG, SCREEN_TAG, XTAL_3_52128MHz/2)
MCFG_SCREEN_UPDATE_DRIVER(vip_state, screen_update)
MCFG_CDP1861_ADD(CDP1861_TAG, SCREEN_TAG, XTAL_3_52128MHz/2, WRITELINE(vip_state, vdc_int_w), WRITELINE(vip_state, vdc_dma_out_w), WRITELINE(vip_state, vdc_ef1_w))
// sound hardware
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD(DISCRETE_TAG, DISCRETE, 0)
MCFG_SOUND_CONFIG_DISCRETE(vip)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
MCFG_VIP_BYTEIO_PORT_ADD(VIP_BYTEIO_PORT_TAG, vip_byteio_cards, NULL, WRITELINE(vip_state, byteio_inst_w))
MCFG_VIP_EXPANSION_SLOT_ADD(VIP_EXPANSION_SLOT_TAG, XTAL_3_52128MHz/2, vip_expansion_cards, NULL)
MCFG_VIP_EXPANSION_SLOT_CALLBACKS(WRITELINE(vip_state, exp_int_w), WRITELINE(vip_state, exp_dma_out_w), WRITELINE(vip_state, exp_dma_in_w))
// devices
MCFG_QUICKLOAD_ADD("quickload", vip_state, vip, "bin,c8,c8x", 0)
MCFG_CASSETTE_ADD("cassette", vip_cassette_interface)
// software lists
MCFG_SOFTWARE_LIST_ADD("cass_list", "vip")
// internal ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("2K")
MCFG_RAM_EXTRA_OPTIONS("4K")
MACHINE_CONFIG_END
//-------------------------------------------------
// MACHINE_CONFIG( vp111 )
//-------------------------------------------------
static MACHINE_CONFIG_DERIVED( vp111, vip )
// internal ram
MCFG_RAM_MODIFY(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("1K")
MCFG_RAM_EXTRA_OPTIONS("2K,4K")
MACHINE_CONFIG_END
//**************************************************************************
// ROMS
//**************************************************************************
//-------------------------------------------------
// ROM( vip )
//-------------------------------------------------
ROM_START( vip )
ROM_REGION( 0x200, CDP1802_TAG, 0 )
ROM_LOAD( "cdpr566.u10", 0x0000, 0x0200, CRC(5be0a51f) SHA1(40266e6d13e3340607f8b3dcc4e91d7584287c06) )
ROM_REGION( 0x200, "chip8", 0 )
ROM_LOAD( "chip8.bin", 0x0000, 0x0200, CRC(438ec5d5) SHA1(8aa634c239004ff041c9adbf9144bd315ab5fc77) )
ROM_REGION( 0x300, "chip8x", 0 )
ROM_LOAD( "chip8x.bin", 0x0000, 0x0300, CRC(79c5f6f8) SHA1(ed438747b577399f6ccbf20fe14156f768842898) )
ROM_END
//-------------------------------------------------
// ROM( vp111 )
//-------------------------------------------------
#define rom_vp111 rom_vip
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS
COMP( 1977, vip, 0, 0, vip, vip, driver_device, 0, "RCA", "Cosmac VIP (VP-711)", GAME_SUPPORTS_SAVE | GAME_IMPERFECT_COLORS )
COMP( 1977, vp111, vip, 0, vp111, vip, driver_device, 0, "RCA", "Cosmac VIP (VP-111)", GAME_SUPPORTS_SAVE | GAME_IMPERFECT_COLORS )
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