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Simplified dial/spinner code for moonwar and moonwarp.

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This commit is contained in:
Jonathan Gevaryahu 2010-03-19 21:36:02 +00:00
parent e470b33885
commit 5ff6c887a8
3 changed files with 32 additions and 59 deletions
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56
src/mame/drivers/berzerk.c
View File

@ -866,53 +866,35 @@ static READ8_HANDLER( moonwarp_p1_r )
// I.e. a 74ls161 counts from 0 to 15 which is the absolute number of bars passed on the quadrature
// one difference is it lacks the strobe input (does it?), which if not active causes
// the dial input to go open bus. This is used in moon war 2 to switch between player 1
// and player 2 dials.
static int lastdialread = -1;
int dialread = input_port_read(space->machine,"P1_DIAL");
static int dialoutput = 0;
// and player 2 dials, which share a single port. moonwarp uses separate ports for the dials.
signed char dialread = input_port_read(space->machine,"P1_DIAL");
static int counter_74ls161 = 0;
static int direction = 0;
UINT8 ret;
UINT8 buttons = (input_port_read(space->machine,"P1")&0xe0);
// following two lines are to fix the direction being wrong for one read
// when the 0xFF<->0x00 border is passed on IPT_DIAL
if ((lastdialread > 250) && (dialread < 5)) direction = 1;
else if ((lastdialread < 5) && (dialread > 250)) direction = 0;
else if ((lastdialread - dialread) < 0) direction = 1;
else if ((lastdialread - dialread) > 0) direction = 0;
// note when lastdialread and dialread are the same direction is left alone.
dialoutput += abs(dialread - lastdialread);
dialoutput &= 0xf;
ret= dialoutput | ((direction==1)?0x10:0) | buttons;
//fprintf(stderr, "dialread1: %02x, lastdialread: %02x, dialoutput: %02x, spinner ret is %02x\n", dialread, lastdialread, dialoutput, ret);
lastdialread = dialread;
if (dialread < 0) direction = 0;
else if (dialread > 0) direction = 0x10;
counter_74ls161 += abs(dialread);
counter_74ls161 &= 0xf;
ret = counter_74ls161 | direction | buttons;
//fprintf(stderr, "dialread1: %02x, counter_74ls161: %02x, spinner ret is %02x\n", dialread, counter_74ls161, ret);
return ret;
}
static READ8_HANDLER( moonwarp_p2_r )
{
// same as above, but for player 2 in cocktail mode
static int lastdialread = -1;
int dialread = input_port_read(space->machine,"P2_DIAL");
static int dialoutput = 0;
signed char dialread = input_port_read(space->machine,"P2_DIAL");
static int counter_74ls161 = 0;
static int direction = 0;
UINT8 ret;
UINT8 buttons = (input_port_read(space->machine,"P2")&0xe0);
// following two lines are to fix the direction being wrong for one read
// when the 0xFF<->0x00 border is passed on IPT_DIAL
if ((lastdialread > 250) && (dialread < 5)) direction = 1;
else if ((lastdialread < 5) && (dialread > 250)) direction = 0;
else if ((lastdialread - dialread) < 0) direction = 1;
else if ((lastdialread - dialread) > 0) direction = 0;
// note when lastdialread and dialread are the same direction is left alone.
dialoutput += abs(dialread - lastdialread);
dialoutput &= 0xf;
ret= dialoutput | ((direction==1)?0x10:0) | buttons;
//fprintf(stderr, "dialread2: %02x, lastdialread: %02x, dialoutput: %02x, spinner ret is %02x\n", dialread, lastdialread, dialoutput, ret);
lastdialread = dialread;
if (dialread < 0) direction = 0;
else if (dialread > 0) direction = 0x10;
counter_74ls161 += abs(dialread);
counter_74ls161 &= 0xf;
ret = counter_74ls161 | direction | buttons;
//fprintf(stderr, "dialread2: %02x, counter_74ls161: %02x, spinner ret is %02x\n", dialread, counter_74ls161, ret);
return ret;
}
@ -930,7 +912,7 @@ static INPUT_PORTS_START( moonwarp )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_START("P1_DIAL")
PORT_BIT( 0xff, 0x0, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5)
PORT_BIT( 0xff, 0x0, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_RESET
PORT_START("P2")
//PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_COCKTAIL // spinner/dial
@ -939,7 +921,7 @@ static INPUT_PORTS_START( moonwarp )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_START("P2_DIAL")
PORT_BIT( 0xff, 0x0, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_COCKTAIL
PORT_BIT( 0xff, 0x0, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_COCKTAIL PORT_RESET
PORT_START("F2")
PORT_DIPNAME( 0x03, 0x00, "Hardware Tests" ) PORT_DIPLOCATION("F2:1,2")

25
src/mame/drivers/galaxian.c
View File

@ -1095,26 +1095,17 @@ static READ8_DEVICE_HANDLER( moonwar_input_port_0_r )
{
// see http://www.cityofberwyn.com/schematics/stern/MoonWar_opto.tiff for schematic
// I.e. a 74ls161 counts from 0 to 15 which is the absolute number of bars passed on the quadrature
static int lastdialread = -1;
int dialread = (moonwar_port_select ? input_port_read(device->machine, "IN3") : input_port_read(device->machine, "IN4"));
static int dialoutput = 0;
signed char dialread = (moonwar_port_select ? input_port_read(device->machine, "IN3") : input_port_read(device->machine, "IN4"));
static int counter_74ls161 = 0;
static int direction = 0;
UINT8 ret;
UINT8 buttons = (input_port_read(device->machine,"IN0")&0xe0);
// following two lines are to fix the direction being wrong for one read
// when the 0xFF<->0x00 border is passed on IPT_DIAL
if ((lastdialread > 250) && (dialread < 5)) direction = 1;
else if ((lastdialread < 5) && (dialread > 250)) direction = 0;
else if ((lastdialread - dialread) < 0) direction = 1;
else if ((lastdialread - dialread) > 0) direction = 0;
// note when lastdialread and dialread are the same direction is left alone.
dialoutput += abs(dialread - lastdialread);
dialoutput &= 0xf;
ret= dialoutput | ((direction==1)?0x10:0) | buttons;
//fprintf(stderr, "dialread: %02x, lastdialread: %02x, dialoutput: %02x, spinner ret is %02x\n", dialread, lastdialread, dialoutput, ret);
lastdialread = dialread;
if (dialread < 0) direction = 0;
else if (dialread > 0) direction = 0x10;
counter_74ls161 += abs(dialread);
counter_74ls161 &= 0xf;
ret = counter_74ls161 | direction | buttons;
//fprintf(stderr, "dialread1: %02x, counter_74ls161: %02x, spinner ret is %02x\n", dialread, counter_74ls161, ret);
return ret;
}

10
src/mame/drivers/galdrvr.c
View File

@ -2647,11 +2647,11 @@ static INPUT_PORTS_START( moonwar )
PORT_START("IN3") /* IN3/4 - dummy ports for the dial */
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_REVERSE PORT_CONDITION("IN2", 0x08, PORTCOND_EQUALS, 0x08) // cocktail: dial is reversed
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_CONDITION("IN2", 0x08, PORTCOND_EQUALS, 0x00) // upright: dial works normally
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_REVERSE PORT_RESET PORT_CONDITION("IN2", 0x08, PORTCOND_EQUALS, 0x08) // cocktail: dial is reversed
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_RESET PORT_CONDITION("IN2", 0x08, PORTCOND_EQUALS, 0x00) // upright: dial works normally
PORT_START("IN4")
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_COCKTAIL PORT_REVERSE // cocktail: dial is reversed
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_RESET PORT_COCKTAIL PORT_REVERSE // cocktail: dial is reversed
INPUT_PORTS_END
/* same as above, but coinage is different */
@ -2671,10 +2671,10 @@ static INPUT_PORTS_START( moonwara )
PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED ) /* output bits */
PORT_START("IN3") /* IN3/4 - dummy ports for the dial */
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) // both: p1 dial works normally, p2 dial is reversed, both share same port
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_RESET // both: p1 dial works normally, p2 dial is reversed, both share same port
PORT_START("IN4") /* doesn't actually work due to bug in game code */
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(5) PORT_COCKTAIL
PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(25) PORT_KEYDELTA(4) PORT_RESET PORT_COCKTAIL
INPUT_PORTS_END
static INPUT_PORTS_START( tdpgal )