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(MESS) Mac: Support headless operation [R. Belmont]

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This commit is contained in:
R. Belmont 2012-10-20 03:27:56 +00:00
parent 598d939939
commit c3fa9bf948
1 changed files with 11 additions and 4 deletions
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15
src/mess/machine/mac.c
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@ -1322,8 +1322,11 @@ READ8_MEMBER(mac_state::mac_via_in_b)
else
{
/* video beam in display (! VBLANK && ! HBLANK basically) */
if (machine().primary_screen->vpos() >= MAC_V_VIS)
val |= 0x40;
if (machine().primary_screen)
{
if (machine().primary_screen->vpos() >= MAC_V_VIS)
val |= 0x40;
}
if (ADB_IS_BITBANG_CLASS)
{
@ -1771,8 +1774,12 @@ void mac_state::machine_start()
}
}
this->m_scanline_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(mac_state::mac_scanline_tick),this));
this->m_scanline_timer->adjust(machine().primary_screen->time_until_pos(0, 0));
if (machine().primary_screen)
{
this->m_scanline_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(mac_state::mac_scanline_tick),this));
this->m_scanline_timer->adjust(machine().primary_screen->time_until_pos(0, 0));
}
m_6015_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(mac_state::mac_6015_tick),this));
m_6015_timer->adjust(attotime::never);