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x68k: don't supress hsync state changes during vblank

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This commit is contained in:
cracyc 2021-05-13 20:38:59 -05:00
parent 6cf7640312
commit 381d97ed9d
1 changed files with 4 additions and 14 deletions
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18
src/mame/video/x68k_crtc.cpp
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@ -228,21 +228,17 @@ TIMER_CALLBACK_MEMBER(x68k_crtc_device::hsync)
if (m_oddscanline)
{
int scan = screen().vpos();
if (scan > m_vend)
scan = m_vbegin;
hsync_time = screen().time_until_pos(scan, (m_htotal + m_hend) / 2);
m_scanline_timer->adjust(hsync_time);
if (scan != 0)
if ((scan != 0) && (scan < m_vend))
screen().update_partial(scan);
}
else
{
int scan = screen().vpos();
if (scan > m_vend)
scan = m_vbegin;
hsync_time = screen().time_until_pos(scan, m_hend / 2);
m_scanline_timer->adjust(hsync_time);
if (scan != 0)
if ((scan != 0) && (scan < m_vend))
screen().update_partial(scan);
}
}
@ -250,11 +246,7 @@ TIMER_CALLBACK_MEMBER(x68k_crtc_device::hsync)
{
if (m_oddscanline)
{
int scan = screen().vpos();
if (scan > m_vend)
scan = m_vbegin;
else
scan++;
int scan = screen().vpos() + 1;
hsync_time = screen().time_until_pos(scan, m_hbegin / 2);
m_scanline_timer->adjust(hsync_time, 1);
m_oddscanline = false;
@ -272,11 +264,9 @@ TIMER_CALLBACK_MEMBER(x68k_crtc_device::hsync)
if (hstate == 1)
{
int scan = screen().vpos();
if (scan > m_vend)
scan = 0;
hsync_time = screen().time_until_pos(scan, m_hend);
m_scanline_timer->adjust(hsync_time);
if (scan != 0)
if ((scan != 0) && (scan < m_vend))
screen().update_partial(scan);
}
if (hstate == 0)