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Merge pull request #1755 from ajrhacker/amusco_coins

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amusco.cpp: Coin-related improvements
This commit is contained in:
R. Belmont 2016-11-21 13:58:53 -05:00 committed by GitHub
commit b5b46f74c7
1 changed files with 58 additions and 53 deletions
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111
src/mame/drivers/amusco.cpp
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@ -39,11 +39,10 @@
CPU socket. Some of the other chips on this board were replaced with clones (e.g.
AMD P8253, SY6545-1).
The program code reads from and writes to what must be a line printer and a RTC
The program code reads from and writes to a 40-column line printer and a RTC
(probably a MSM5832), though neither is present on the main board. The I/O write
patterns also suggest that each or both of these devices are accessed through an
Intel 8155 or compatible interface chip. The printer appears to use non-Epson
control codes: ETB, DLE, DC4, DC2, SO, EM, DC1 and STX.
Intel 8155 or compatible interface chip. The printer uses NCR-style control codes.
*****************************************************************************************
@ -66,7 +65,8 @@
- Make the 6845 transparent videoram addressing actually transparent.
(IRQ1 changes the 6845 address twice but neither reads nor writes data?)
- Add NVRAM in a way that won't trigger POST error message (needs NMI on shutdown?)
- Identify remaining outputs from first PPI (button lamps and coin counter are identified and implemented)
- Identify remaining outputs from first PPI (button lamps are identified and implemented)
- Draw 88 Poker fails POST memory test for some weird reason (IRQ interference?)
*******************************************************************************/
@ -80,6 +80,8 @@
#define PIT_CLOCK0 SECOND_CLOCK / 8 /* guess */
#define PIT_CLOCK1 SECOND_CLOCK / 8 /* guess */
#define COIN_IMPULSE 3
#include "emu.h"
#include "cpu/i86/i86.h"
#include "video/mc6845.h"
@ -111,9 +113,7 @@ public:
TILE_GET_INFO_MEMBER(get_bg_tile_info);
virtual void video_start() override;
virtual void machine_start() override;
DECLARE_READ8_MEMBER(hack_coin1_r);
DECLARE_READ8_MEMBER(hack_coin2_r);
DECLARE_READ8_MEMBER(hack_bill_r);
DECLARE_WRITE_LINE_MEMBER(coin_irq);
DECLARE_READ8_MEMBER(mc6845_r);
DECLARE_WRITE8_MEMBER(mc6845_w);
DECLARE_WRITE8_MEMBER(output_a_w);
@ -174,44 +174,11 @@ void amusco_state::machine_start()
}
/**************************
* Read / Write Handlers *
**************************/
READ8_MEMBER(amusco_state::hack_coin1_r)
{
// actually set by IRQ4
return BIT(ioport("IN2")->read(), 1) ? 1 : 0;
}
READ8_MEMBER(amusco_state::hack_coin2_r)
{
// actually set by IRQ4
return BIT(ioport("IN2")->read(), 2) ? 1 : 0;
}
READ8_MEMBER(amusco_state::hack_bill_r)
{
// actually set by IRQ4
return BIT(ioport("IN1")->read(), 2) ? 0 : 1;
}
/*************************
* Memory Map Information *
*************************/
static ADDRESS_MAP_START( amusco_mem_map, AS_PROGRAM, 8, amusco_state )
AM_RANGE(0x006a6, 0x006a6) AM_READ(hack_coin1_r)
AM_RANGE(0x006a8, 0x006a8) AM_READ(hack_coin2_r)
AM_RANGE(0x00000, 0x0ffff) AM_RAM
AM_RANGE(0xec000, 0xecfff) AM_RAM AM_SHARE("videoram") // placeholder
AM_RANGE(0xf8000, 0xfffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( draw88pkr_mem_map, AS_PROGRAM, 8, amusco_state )
AM_RANGE(0x006ae, 0x006ae) AM_READ(hack_coin1_r)
AM_RANGE(0x006b0, 0x006b0) AM_READ(hack_coin2_r)
AM_RANGE(0x0069a, 0x0069a) AM_READ(hack_bill_r)
AM_RANGE(0x00000, 0x0ffff) AM_RAM
AM_RANGE(0xec000, 0xecfff) AM_RAM AM_SHARE("videoram") // placeholder
AM_RANGE(0xf8000, 0xfffff) AM_ROM
@ -273,14 +240,16 @@ WRITE8_MEMBER(amusco_state::output_b_w)
7654 3210
---- --x- Unknown lamp (lits when all holds/disc are ON. Could be a Cancel lamp in an inverted Hold system).
---- -x-- Start/Draw lamp.
---x ---- Coin counter.
xxx- x--x Unknown.
---x ---- Low when sound data queued.
--x- ---- Safe to shutdown?
-x-- ---- Allow NMI?
x--- x--x Unknown.
*/
output().set_lamp_value(6, (data >> 2) & 1); // Lamp 6 (Start/Draw)
output().set_lamp_value(7, (data >> 1) & 1); // Lamp 7 (Unknown)
machine().bookkeeping().coin_counter_w(0, ~data & 0x10); // Coin counter
//machine().bookkeeping().coin_counter_w(0, ~data & 0x10); // Probably not coin-related
// logerror("Writing %02Xh to PPI output B\n", data);
}
@ -308,7 +277,39 @@ READ8_MEMBER(amusco_state::lpt_status_r)
WRITE8_MEMBER(amusco_state::lpt_data_w)
{
logerror("Writing %02Xh to printer\n", data);
switch (data)
{
case 0x10: // NCR: Clear all printer and interface functions
logerror("Writing DLE to printer\n");
break;
case 0x11:
logerror("Writing DC1 to printer\n");
break;
case 0x12: // NCR: Select double-wide characters for one line
logerror("Writing DC2 to printer\n");
break;
case 0x14: // NCR: Feed n print lines (where n is following byte)
logerror("Writing DC4 to printer\n");
break;
case 0x17: // NCR: Print buffer contents; advance one line
logerror("Writing ETB to printer\n");
break;
case 0x19: // NCR: Perform full knife cut
logerror("Writing EM to printer\n");
break;
default:
if (data >= 0x20 && data < 0x7f)
logerror("Writing '%c' to printer\n", data);
else
logerror("Writing %02Xh to printer\n", data);
break;
}
}
WRITE8_MEMBER(amusco_state::rtc_control_w)
@ -369,21 +370,26 @@ static INPUT_PORTS_START( amusco )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_POKER_HOLD4 ) // move down in service mode
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_POKER_HOLD3 ) // move up in service mode
PORT_START("IN2") // TO DO: enabling IRQ4 produces COIN ERROR message
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 ) //PORT_WRITE_LINE_DEVICE_MEMBER("pic8259", pic8259_device, ir4_w)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN2 ) //PORT_WRITE_LINE_DEVICE_MEMBER("pic8259", pic8259_device, ir4_w)
PORT_BIT( 0xf9, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("IN2")
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(COIN_IMPULSE) PORT_WRITE_LINE_DEVICE_MEMBER(":", amusco_state, coin_irq)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(COIN_IMPULSE) PORT_WRITE_LINE_DEVICE_MEMBER(":", amusco_state, coin_irq)
PORT_BIT( 0xf9, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
static INPUT_PORTS_START( draw88pkr )
PORT_INCLUDE( amusco )
PORT_MODIFY("IN1")
PORT_MODIFY("IN1") // Doors probably still exist, though code does nothing with them
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BILL1 ) //PORT_WRITE_LINE_DEVICE_MEMBER("pic8259", pic8259_device, ir4_w)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BILL1 ) PORT_IMPULSE(COIN_IMPULSE) PORT_WRITE_LINE_DEVICE_MEMBER(":", amusco_state, coin_irq)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED )
INPUT_PORTS_END
WRITE_LINE_MEMBER(amusco_state::coin_irq)
{
m_pic->ir4_w(state ? CLEAR_LINE : HOLD_LINE);
}
/*************************
@ -495,8 +501,7 @@ static MACHINE_CONFIG_START( amusco, amusco_state )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( draw88pkr, amusco )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(draw88pkr_mem_map)
//MCFG_DEVICE_MODIFY("ppi_outputs") // Some bits are definitely different
MACHINE_CONFIG_END
@ -549,4 +554,4 @@ ROM_END
/* YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS LAYOUT */
GAMEL( 1987, amusco, 0, amusco, amusco, driver_device, 0, ROT0, "Amusco", "American Music Poker (V1.4)", MACHINE_IMPERFECT_COLORS | MACHINE_NODEVICE_PRINTER, layout_amusco ) // palette totally wrong
GAMEL( 1988, draw88pkr, 0, draw88pkr,draw88pkr,driver_device, 0, ROT0, "BTE, Inc.", "Draw 88 Poker (V2.0)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_COLORS | MACHINE_NODEVICE_PRINTER, layout_amusco )
GAMEL( 1988, draw88pkr, 0, draw88pkr,draw88pkr,driver_device, 0, ROT0, "BTE, Inc.", "Draw 88 Poker (V2.0)", MACHINE_IMPERFECT_COLORS | MACHINE_NODEVICE_PRINTER, layout_amusco ) // palette totally wrong