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gts3.c : Display works, attract mode works.

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This commit is contained in:
Robbbert 2014-10-19 13:22:57 +00:00
parent 846d034c3a
commit b90b483737
1 changed files with 68 additions and 18 deletions
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54
src/mame/drivers/gts3.c
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@ -3,6 +3,10 @@
PINBALL
Gottlieb System 3
Status:
- Display works
- Attract mode works
*****************************************************************************************************/
#include "machine/genpin.h"
@ -21,7 +25,13 @@ public:
{ }
DECLARE_DRIVER_INIT(gts3);
DECLARE_WRITE8_MEMBER(segbank_w);
DECLARE_WRITE8_MEMBER(u4b_w);
DECLARE_WRITE_LINE_MEMBER(nmi_w);
private:
bool m_dispclk;
UINT32 m_digit;
UINT8 m_segment[4];
virtual void machine_reset();
required_device<m65c02_device> m_maincpu;
required_device<via6522_device> m_u4;
@ -33,14 +43,53 @@ static ADDRESS_MAP_START( gts3_map, AS_PROGRAM, 8, gts3_state )
AM_RANGE(0x0000, 0x1fff) AM_RAM AM_SHARE("nvram")
AM_RANGE(0x2000, 0x200f) AM_DEVREADWRITE("u4", via6522_device, read, write)
AM_RANGE(0x2010, 0x201f) AM_DEVREADWRITE("u5", via6522_device, read, write)
AM_RANGE(0x2020, 0x2023) AM_MIRROR(0x0c) AM_WRITE(segbank_w)
AM_RANGE(0x4000, 0xffff) AM_ROM
ADDRESS_MAP_END
static INPUT_PORTS_START( gts3 )
INPUT_PORTS_END
// This trampoline needed - DEVWRITELINE("maincpu", m65c02_device, nmi_line) does not work
WRITE_LINE_MEMBER( gts3_state::nmi_w )
{
m_maincpu->set_input_line(INPUT_LINE_NMI, (state) ? CLEAR_LINE : HOLD_LINE);
}
WRITE8_MEMBER( gts3_state::segbank_w )
{
m_segment[offset] = data;
UINT8 i;
UINT32 seg1,seg2;
offset &= 2;
for (i = 0;i < 20; i++)
{
if BIT(m_digit, i)
{
seg1 = m_segment[offset] | (m_segment[offset+1] << 8);
seg2 = BITSWAP32(seg1, 16,16,16,16,16,16,16,16,16,16,16,16,16,16,15,14,9,7,13,11,10,6,8,12,5,4,3,3,2,1,0,0);
output_set_digit_value(i+(offset ? 0 : 20), seg2);
}
}
}
WRITE8_MEMBER( gts3_state::u4b_w )
{
bool dispclk = BIT(data, 6);
if ((!m_dispclk) && dispclk) // 0->1 is valid
{
m_digit = (m_digit << 1) | BIT(data, 5);
}
m_dispclk = dispclk;
// printf("B=%s=%X ",machine().describe_context(),data&0xe0);
}
void gts3_state::machine_reset()
{
m_digit = 0;
m_dispclk = 0;
}
DRIVER_INIT_MEMBER( gts3_state, gts3 )
@ -62,9 +111,9 @@ static MACHINE_CONFIG_START( gts3, gts3_state )
MCFG_VIA6522_IRQ_HANDLER(DEVWRITELINE("maincpu", m65c02_device, irq_line))
//MCFG_VIA6522_READPA_HANDLER(WRITE8(gts3_state, u4a_r))
//MCFG_VIA6522_READPB_HANDLER(WRITE8(gts3_state, u4b_r))
//MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(gts3_state, u4b_w))
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(gts3_state, u4b_w))
//MCFG_VIA6522_CA2_HANDLER(WRITELINE(gts3_state, u4ca2_w))
MCFG_VIA6522_CB2_HANDLER(DEVWRITELINE("maincpu", m65c02_device, nmi_line))
MCFG_VIA6522_CB2_HANDLER(WRITELINE(gts3_state, nmi_w))
MCFG_DEVICE_ADD("u5", VIA6522, 0)
MCFG_VIA6522_IRQ_HANDLER(DEVWRITELINE("maincpu", m65c02_device, irq_line))
@ -330,6 +379,7 @@ ROM_END
/*-------------------------------------------------------------------
/ Unnamed game? by Toptronic HGmbH, Germany
/ Shows as "GAME NAME" in display, (#7**)
/-------------------------------------------------------------------*/
ROM_START(tt_game)
ROM_REGION(0x10000, "maincpu", 0)