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This commit is contained in:
Michaël Banaan Ananas 2011-12-15 21:33:25 +00:00
parent 21b067cdd6
commit 2a079dc258
1 changed files with 2 additions and 5 deletions
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7
src/emu/video/tms9928a.c
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@ -158,11 +158,8 @@ void tms9928a_device::check_interrupt()
void tms9928a_device::update_backdrop()
{
// update backdrop colour on change
if (m_Regs[7] & 15)
palette_set_color(machine(), 0, tms9928a_palette[m_Regs[7] & 15]);
else
// transparent if EXTVID bit is set
// update backdrop colour to transparent if EXTVID bit is set
if ((m_Regs[7] & 15) == 0)
palette_set_color(machine(), 0, MAKE_ARGB(m_Regs[0] & 1 ? 0 : 255,0,0,0));
}