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(for whatever reason irq frequency didn't matched the notes, everything works by

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pulling the frequency back right so ...)

(MESS) New WORKING system
------------------------------

Casio PV-1000 [Wilbert Pol, plgDavid, Angelo Salese]
This commit is contained in:
Angelo Salese 2012-12-24 22:43:58 +00:00
parent 107b97c098
commit 618f56d5fa
1 changed files with 8 additions and 3 deletions
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11
src/mess/drivers/pv1000.c
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@ -94,6 +94,7 @@ public:
emu_timer *m_irq_off_timer;
UINT8 m_pcg_bank;
UINT8 m_force_pattern;
UINT8 m_fd_buffer_flag;
required_device<cpu_device> m_maincpu;
required_device<screen_device> m_screen;
@ -171,8 +172,9 @@ READ8_MEMBER( pv1000_state::pv1000_io_r )
/* Bit 1 = 1 => Data is available in port FD */
/* Bit 0 = 1 => Buffer at port FD is empty */
data = 0;
data = ( m_screen->vpos() >= 212 && m_screen->vpos() <= 220 ) ? 1 : 0;
data = m_fd_buffer_flag & 1;
data |= m_fd_data ? 2 : 0;
m_fd_buffer_flag &= ~1;
break;
case 0x05:
static const char *const joynames[] = { "IN0", "IN1", "IN2", "IN3" };
@ -355,7 +357,10 @@ static DEVICE_START( pv1000_sound )
TIMER_CALLBACK_MEMBER(pv1000_state::d65010_irq_on_cb)
{
int vpos = m_screen->vpos();
int next_vpos = vpos + 12;
int next_vpos = vpos + 4;
if(vpos == 195)
m_fd_buffer_flag |= 1; /* TODO: exact timing of this */
/* Set IRQ line and schedule release of IRQ line */
m_maincpu->set_input_line(0, ASSERT_LINE );
@ -449,4 +454,4 @@ ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
CONS( 1983, pv1000, 0, 0, pv1000, pv1000, driver_device, 0, "Casio", "PV-1000", GAME_NOT_WORKING )
CONS( 1983, pv1000, 0, 0, pv1000, pv1000, driver_device, 0, "Casio", "PV-1000", 0 )