526 lines
14 KiB
C
526 lines
14 KiB
C
/***************************************************************************
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Atari Games Cops
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(hardware developed by Nova Productions Limited)
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Preliminary driver by Mariusz Wojcieszek
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***************************************************************************/
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#include "emu.h"
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#include "cpu/m6502/m6502.h"
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#include "machine/6522via.h"
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//#include "machine/6551acia.h"
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#include "cops.lh"
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#define MAIN_CLOCK XTAL_4MHz
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class cops_state : public driver_device
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{
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public:
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cops_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_irq(0)
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{ }
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// devices
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required_device<cpu_device> m_maincpu;
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// screen updates
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UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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protected:
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// driver_device overrides
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virtual void machine_start();
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virtual void machine_reset();
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virtual void video_start();
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public:
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DECLARE_WRITE8_MEMBER(io1_w);
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DECLARE_READ8_MEMBER(io1_r);
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DECLARE_WRITE8_MEMBER(io2_w);
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DECLARE_READ8_MEMBER(io2_r);
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DECLARE_WRITE8_MEMBER(via1_irq);
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DECLARE_WRITE8_MEMBER(via2_irq);
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void dacia_receive(UINT8 data);
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void laserdisc_w(UINT8 data);
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DECLARE_WRITE8_MEMBER(dacia_w);
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DECLARE_READ8_MEMBER(dacia_r);
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DECLARE_WRITE8_MEMBER(cdrom_data_w);
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DECLARE_WRITE8_MEMBER(cdrom_ctrl_w);
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DECLARE_READ8_MEMBER(cdrom_data_r);
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int m_irq;
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UINT8 m_lcd_addr_l, m_lcd_addr_h;
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UINT8 m_lcd_data_l, m_lcd_data_h;
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UINT8 m_dacia_receiver_data;
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UINT8 m_dacia_receiver_full;
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UINT8 m_cdrom_ctrl;
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UINT8 m_cdrom_data;
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};
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void cops_state::video_start()
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{
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}
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UINT32 cops_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect )
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{
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return 0;
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}
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/*************************************
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*
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* Sony CDU33A-02 CDROM
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*
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*************************************/
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WRITE8_MEMBER(cops_state::cdrom_data_w)
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{
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const char *regs[4] = { "CMD", "PARAM", "WRITE", "CTRL" };
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m_cdrom_data = BITSWAP8(data,0,1,2,3,4,5,6,7);
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UINT8 reg = ((m_cdrom_ctrl & 4) >> 1) | ((m_cdrom_ctrl & 8) >> 3);
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logerror("%s:cdrom_data_w(reg = %s, data = %02x)\n", machine().describe_context(), regs[reg & 0x03], m_cdrom_data);
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}
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WRITE8_MEMBER(cops_state::cdrom_ctrl_w)
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{
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logerror("%s:cdrom_ctrl_w(%02x)\n", machine().describe_context(), data);
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m_cdrom_ctrl = data;
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}
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READ8_MEMBER(cops_state::cdrom_data_r)
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{
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logerror("%s:cdrom_data_r\n", machine().describe_context());
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return machine().rand()&0xff;
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}
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/*************************************
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*
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* 6552 DACIA & LDP-1450 Laserdisc
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*
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*************************************/
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void cops_state::laserdisc_w(UINT8 data)
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{
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switch( data )
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{
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case 0x26: /* Video off */
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dacia_receive(0x0a);
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break;
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case 0x27: /* Video on */
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dacia_receive(0x0a);
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break;
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case 0x30: /* Digit */
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case 0x31:
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case 0x32:
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case 0x33:
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case 0x34:
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case 0x35:
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case 0x36:
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case 0x37:
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case 0x38:
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case 0x39:
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dacia_receive(0x0a);
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break;
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case 0x3f: /* Stop */
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dacia_receive(0x0a);
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break;
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case 0x40: /* Enter */
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dacia_receive(0x0a);
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break;
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case 0x43: /* Search */
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dacia_receive(0x0a);
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break;
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case 0x56: /* C. L. (Reset) */
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dacia_receive(0x0a);
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break;
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default:
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logerror("Laserdisc command %02x\n", data);
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break;
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}
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}
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void cops_state::dacia_receive(UINT8 data)
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{
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m_dacia_receiver_data = data;
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m_dacia_receiver_full = 1;
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m_maincpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
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}
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READ8_MEMBER(cops_state::dacia_r)
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{
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switch(offset & 0x07)
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{
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case 0: /* ISR1: Interrupt Status Register */
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return 0x40 | m_dacia_receiver_full; /* Bit 6: Transmit Data Register Empty (TDRE) */
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case 3: /* RDR1: Receive data register */
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m_dacia_receiver_full = 0;
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return m_dacia_receiver_data;
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default:
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logerror("%s:dacia_r(%02x)\n", machine().describe_context(), offset);
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return 0;
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}
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}
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WRITE8_MEMBER(cops_state::dacia_w)
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{
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switch(offset & 0x07)
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{
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case 3: /* Transmit Data Register 1 */
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//logerror("DACIA Transmit: %02x %c\n", data, (char)data);
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laserdisc_w(data);
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break;
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default:
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logerror("%s:dacia_w(%02x,%02x)\n", machine().describe_context(), offset, data);
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break;
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}
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}
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/*************************************
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*
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* I/O
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*
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*************************************/
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READ8_MEMBER(cops_state::io1_r)
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{
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switch( offset & 0x0f )
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{
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case 0x08: /* SW0 */
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return ioport("SW0")->read();
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case 0x09: /* SW1 */
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return ioport("SW1")->read();
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case 0x0a: /* SW2 */
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return ioport("SW2")->read();
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default:
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logerror("Unknown io1_r, offset = %03x\n", offset);
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return 0;
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}
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return 0;
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}
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WRITE8_MEMBER(cops_state::io1_w)
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{
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int i;
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char output_name[16];
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UINT16 display_data;
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switch( offset & 0x0f )
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{
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case 0x00: /* WOP0 Alpha display*/
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m_lcd_addr_l = data;
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break;
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case 0x01: /* WOP1 Alpha display*/
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m_lcd_addr_h = data;
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{
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// update display
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const UINT16 addrs_table[] = { 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0002, 0x0001, 0x0080,
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0x1000, 0x0800, 0x0400, 0x2000, 0x4000, 0x0200, 0x0100, 0x8000 };
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UINT16 addr = m_lcd_addr_l | (m_lcd_addr_h << 8);
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for (i = 0; i < 16; i++ )
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{
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if (addr == addrs_table[i])
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{
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break;
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}
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}
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if (i < 16)
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{
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sprintf(output_name, "digit%d", i);
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display_data = m_lcd_data_l | (m_lcd_data_h << 8);
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display_data = BITSWAP16(display_data, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0); // todo:
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output_set_value(output_name, display_data);
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}
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}
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break;
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case 0x02: /* WOP2 Alpha display*/
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m_lcd_data_l = data;
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break;
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case 0x03: /* WOP3 Alpha display*/
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m_lcd_data_h = data;
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break;
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case 0x04: /* WOP4 */
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break;
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case 0x05: /* WOP5 */
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break;
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case 0x06: /* WOP6 */
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break;
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case 0x07: /* WOP? */
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break;
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case 0x08: /* WOP0 */
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break;
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default:
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logerror("Unknown io1_w, offset = %03x, data = %02x\n", offset, data);
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break;
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}
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}
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READ8_MEMBER(cops_state::io2_r)
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{
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return 0;
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}
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WRITE8_MEMBER(cops_state::io2_w)
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{
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}
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/*************************************
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*
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* VIA 1 (U18)
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* PA0-2 Steer
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* PA3 ?
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* PA4-6 Fade?
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* PA7 STK (system rom banking)
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* PB0-7 SN76489 data bus
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* CA1-2 n.c.
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* CB1 /WE SN76489
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* IRQ IRQ
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*
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*************************************/
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WRITE8_MEMBER(cops_state::via1_irq)
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{
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if ( data == ASSERT_LINE )
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{
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m_irq |= 1;
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}
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else
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{
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m_irq &= ~1;
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}
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m_maincpu->set_input_line(M6502_IRQ_LINE, m_irq ? ASSERT_LINE : CLEAR_LINE);
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}
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static const via6522_interface via_1_interface =
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{
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DEVCB_NULL, DEVCB_NULL, /*inputs : A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*inputs : CA/B1,CA/B2 */
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DEVCB_NULL, DEVCB_NULL, /*outputs: A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*outputs: CA/B1,CA/B2 */
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DEVCB_DRIVER_MEMBER(cops_state,via1_irq) /*irq */
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};
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/*************************************
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*
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* VIA 2 (U27)
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* PA0-7 GUN
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* PB0-7 GUN
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* IRQ IRQ
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*
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*************************************/
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WRITE8_MEMBER(cops_state::via2_irq)
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{
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if ( data == ASSERT_LINE )
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{
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m_irq |= 2;
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}
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else
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{
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m_irq &= ~2;
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}
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m_maincpu->set_input_line(M6502_IRQ_LINE, m_irq ? ASSERT_LINE : CLEAR_LINE);
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}
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static const via6522_interface via_2_interface =
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{
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DEVCB_NULL, DEVCB_NULL, /*inputs : A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*inputs : CA/B1,CA/B2 */
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DEVCB_NULL, DEVCB_NULL, /*outputs: A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*outputs: CA/B1,CA/B2 */
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DEVCB_DRIVER_MEMBER(cops_state,via2_irq) /*irq */
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};
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/*************************************
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*
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* VIA 3
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* PA0-7 CDROM
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* PB0-8 CDROM
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*
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*************************************/
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static const via6522_interface via_3_interface =
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{
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DEVCB_DRIVER_MEMBER(cops_state, cdrom_data_r), DEVCB_NULL, /*inputs : A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*inputs : CA/B1,CA/B2 */
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DEVCB_DRIVER_MEMBER(cops_state, cdrom_data_w), DEVCB_DRIVER_MEMBER(cops_state, cdrom_ctrl_w), /*outputs: A/B */
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DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, /*outputs: CA/B1,CA/B2 */
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DEVCB_NULL /*irq */
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};
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/*************************************
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*
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* Main CPU memory handlers
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*
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*************************************/
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static ADDRESS_MAP_START( cops_map, AS_PROGRAM, 8, cops_state )
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AM_RANGE(0x0000, 0x1fff) AM_RAM
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AM_RANGE(0x2000, 0x9fff) AM_ROM AM_REGION("program", 0)
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AM_RANGE(0xa000, 0xafff) AM_READWRITE(io1_r, io1_w)
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AM_RANGE(0xb000, 0xb00f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* VIA 1 */
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AM_RANGE(0xb800, 0xb80f) AM_DEVREADWRITE("via6522_2", via6522_device, read, write) /* VIA 2 */
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AM_RANGE(0xc000, 0xcfff) AM_READWRITE(io2_r, io2_w)
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// AM_RANGE(0xd000, 0xd003) AM_DEVREADWRITE("acia6551_1", acia6551_device, read, write )
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// AM_RANGE(0xd004, 0xd007) AM_DEVREADWRITE("acia6551_2", acia6551_device, read, write )
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AM_RANGE(0xd000, 0xd007) AM_READWRITE(dacia_r, dacia_w)
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AM_RANGE(0xd800, 0xd80f) AM_DEVREADWRITE("via6522_3", via6522_device, read, write) /* VIA 3 */
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AM_RANGE(0xe000, 0xffff) AM_ROM AM_REGION("system", 0)
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ADDRESS_MAP_END
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static INPUT_PORTS_START( cops )
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PORT_START("SW0")
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PORT_DIPNAME( 0x01, 0x00, "SW0" )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x01, DEF_STR( On ) )
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PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x02, DEF_STR( On ) )
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PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x04, DEF_STR( On ) )
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PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x08, DEF_STR( On ) )
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PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x10, DEF_STR( On ) )
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PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x20, DEF_STR( On ) )
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PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x40, DEF_STR( On ) )
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PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x80, DEF_STR( On ) )
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PORT_START("SW1")
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PORT_DIPNAME( 0x01, 0x00, "SW1" )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x01, DEF_STR( On ) )
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PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x02, DEF_STR( On ) )
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PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x04, DEF_STR( On ) )
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PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x08, DEF_STR( On ) )
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PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x10, DEF_STR( On ) )
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PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x20, DEF_STR( On ) )
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PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x40, DEF_STR( On ) )
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PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x80, DEF_STR( On ) )
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PORT_START("SW2")
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PORT_DIPNAME( 0x01, 0x00, "SW2" )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x01, DEF_STR( On ) )
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PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x02, DEF_STR( On ) )
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PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x04, DEF_STR( On ) )
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PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x08, DEF_STR( On ) )
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PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x10, DEF_STR( On ) )
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PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x20, DEF_STR( On ) )
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PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x40, DEF_STR( On ) )
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PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
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PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x80, DEF_STR( On ) )
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INPUT_PORTS_END
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void cops_state::machine_start()
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{
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}
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void cops_state::machine_reset()
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{
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m_irq = 0;
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m_lcd_addr_l = m_lcd_addr_h = 0;
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m_lcd_data_l = m_lcd_data_h = 0;
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m_dacia_receiver_full = 0;
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}
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|
|
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static PALETTE_INIT( cops )
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{
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}
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|
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static MACHINE_CONFIG_START( cops, cops_state )
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|
|
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu",M6502,MAIN_CLOCK/2)
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MCFG_CPU_PROGRAM_MAP(cops_map)
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|
|
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
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MCFG_SCREEN_UPDATE_DRIVER(cops_state, screen_update)
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MCFG_SCREEN_SIZE(32*8, 32*8)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
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|
|
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MCFG_PALETTE_INIT(cops)
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MCFG_PALETTE_LENGTH(8)
|
|
|
|
/* via */
|
|
MCFG_VIA6522_ADD("via6522_1", 0, via_1_interface)
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MCFG_VIA6522_ADD("via6522_2", 0, via_2_interface)
|
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MCFG_VIA6522_ADD("via6522_3", 0, via_3_interface)
|
|
|
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/* acia */
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// MCFG_ACIA6551_ADD("acia6551_1")
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// MCFG_ACIA6551_ADD("acia6551_2")
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|
|
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/* sound hardware */
|
|
MCFG_SPEAKER_STANDARD_MONO("mono")
|
|
MACHINE_CONFIG_END
|
|
|
|
|
|
/***************************************************************************
|
|
|
|
Game driver(s)
|
|
|
|
***************************************************************************/
|
|
|
|
ROM_START( cops )
|
|
ROM_REGION( 0x8000, "program", 0 )
|
|
ROM_LOAD( "cops_prg.dat", 0x0000, 0x8000, CRC(a5c02366) SHA1(b135d72fcfe737a113c984b0b8dd78428f248414) )
|
|
|
|
ROM_REGION( 0x8000, "system", 0 )
|
|
ROM_LOAD( "cops_sys.dat", 0x0000, 0x8000, CRC(0060e5d0) SHA1(b8c9f6fde6a315e33fa7946e5d3bb4ea2fbe76a8) )
|
|
ROM_END
|
|
|
|
GAMEL( 1994, cops, 0, cops, cops, driver_device, 0, ROT0, "Atari Games", "Cops", GAME_NOT_WORKING | GAME_NO_SOUND, layout_cops )
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