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mindset: Palette fixes and some more register details [O. Galibert, Al Kossow]

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This commit is contained in:
Olivier Galibert 2019-07-19 09:31:27 +02:00
parent 760daf8eef
commit 436557dc36
1 changed files with 22 additions and 11 deletions
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33
src/mame/drivers/mindset.cpp
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@ -313,8 +313,19 @@ void mindset_state::dispctrl_w(u16 data)
{
u16 chg = m_dispctrl ^ data;
m_dispctrl = data;
if(chg & 0xff00)
logerror("display control %04x\n", m_dispctrl);
if(chg & 0xff88)
logerror("display control %s bank=%c %s %s h=%d ppx=%d w=%s interlace=%d rreg=%d indicator=%s wreg=%d\n",
m_dispctrl & 0x8000 ? "?15" : "?!15",
m_dispctrl & 0x4000 ? '1' : '0',
m_dispctrl & 0x2000 ? "ibm" : "native",
m_dispctrl & 0x1000 ? "?12" : "?!12",
m_dispctrl & 0x0800 ? "400" : "200",
(m_dispctrl & 0x0600) >> 9,
m_dispctrl & 0x0100 ? "320" : "640",
m_dispctrl & 0x0080 ? "on" : "off",
(m_dispctrl & 0x0070) >> 4,
m_dispctrl & 0x0008 ? "on" : "off",
m_dispctrl & 7);
}
u16 mindset_state::dispreg_r()
@ -329,6 +340,7 @@ u16 mindset_state::dispreg_r()
}
case 5: {
// wants 0080 set to be able to upload the palette
// may be a field indicator
return 0x0080;
}
}
@ -339,7 +351,7 @@ u16 mindset_state::dispreg_r()
void mindset_state::dispreg_w(u16 data)
{
switch(m_dispctrl & 0xf) {
switch(m_dispctrl & 0x7) {
case 0:
m_screenpos = data;
logerror("screen position (%d, %d)\n", (data >> 8) & 15, (data >> 12) & 15);
@ -377,21 +389,20 @@ void mindset_state::dispreg_w(u16 data)
}
case 4: {
data = sw(data);
u8 r = 0x11*(((data & 0x4000) >> 11) | (data & 7));
u8 g = 0x11*(((data & 0x2000) >> 10) | ((data & 0x38) >> 3));
u8 b = 0x11*(((data & 0x1000) >> 9) | ((data & 0x1c0) >> 6));
u8 r = (0x49*(data & 7)) >> 1;
u8 g = (0x49*((data & 0x38) >> 3)) >> 1;
u8 b = (0x49*((data & 0x1c0) >> 6)) >> 1;
if(!(data & 0x8000)) {
r = r * 0.75;
g = g * 0.75;
b = b * 0.75;
}
m_palette[m_borderidx] = (r << 16) | (g << 8) | b;
m_genlock[m_borderidx] = data & 0x0200;
logerror("palette[%x] = %04x -> %06x.%d\n", m_borderidx, data, m_palette[m_borderidx], m_genlock[m_borderidx]);
m_borderidx = (m_borderidx + 1) & 0xf;
break;
}
case 5: {
logerror("genlock %s%s, extra=%c\n", data & 0x0200 ? "on" : "off", data & 0x0100 ? " fixed" : "", data & 0x0400 ? '1' : '0');
break;
}
default:
logerror("display reg[%x] = %04x\n", m_dispctrl & 0xf, data);