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topcat: fix window move (nw)

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Plane bitmap check was missing, so a window move was always started on all
planes. This was mostly visible in Pascal workstation, where text color was
brown instead of white, and HP VUE also showed broken colors.
This commit is contained in:
Sven Schnelle 2018-11-08 00:19:07 +01:00
parent 64e4d5eaba
commit b851368261
1 changed files with 8 additions and 6 deletions
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14
src/devices/video/topcat.cpp
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@ -75,10 +75,10 @@ READ16_MEMBER(topcat_device::vram_r)
uint16_t ret = 0;
if (mem_mask & m_plane_mask)
ret |= m_vram[offset*2+1] ? m_plane_mask : 0;
ret |= m_vram[offset*2+1] & m_plane_mask;
if (mem_mask & m_plane_mask << 8)
ret |= m_vram[offset*2] ? m_plane_mask << 8 : 0;
ret |= (m_vram[offset*2] & m_plane_mask) << 8;
//LOG("%s: %04X: %04X (mask %04X)\n", __FUNCTION__, offset, ret, mem_mask);
return ret;
}
@ -386,10 +386,12 @@ WRITE16_MEMBER(topcat_device::ctrl_w)
update_int();
break;
case TOPCAT_REG_START_WMOVE:
window_move();
if (m_unknown_reg4a) {
m_wmove_intrq = m_plane_mask << 8;
update_int();
if (data & (m_plane_mask << 8)) {
window_move();
if (m_unknown_reg4a) {
m_wmove_intrq = m_plane_mask << 8;
update_int();
}
}
break;
case TOPCAT_REG_ENABLE_BLINK_PLANES: