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x68k: another tile layer-bitmap layer video mode mismatch special case

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This commit is contained in:
cracyc 2023-09-06 22:02:46 -05:00
parent 85066528d6
commit cd7715929a
1 changed files with 2 additions and 2 deletions
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4
src/mame/sharp/x68k_v.cpp
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@ -138,7 +138,7 @@ void x68k_state::spritereg_w(offs_t offset, uint16_t data, uint16_t mem_mask)
m_video.bg_hstart = (data - 4) * 8 + 1;
break;
case 0x407: // BG V-DISP (like CRTC reg 6)
m_video.bg_vstart = data;
m_video.bg_vstart = data - 1;
break;
case 0x408: // BG H/V-Res
m_video.bg_hvres = data & 0x1f;
@ -734,7 +734,7 @@ uint32_t x68k_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
if(/*(m_spritereg[0x404] & 0x0200) &&*/ (m_video.reg[2] & 0x0040))
{
rectangle pcgrect = rect;
if((!(m_video.bg_hvres & 0x0c) && m_crtc->gfx_double_scan()) || ((m_video.bg_hvres & 0x1c) == 0x10 && m_crtc->vfactor() == 1))
if((!(m_video.bg_hvres & 0x0c) && m_crtc->gfx_double_scan()) || ((m_video.bg_hvres & 0x1c) == 0x10 && m_crtc->vfactor() == 1) || (m_video.bg_hvres == 1))
{
pcgrect.max_y >>= 1;
pcgrect.min_y >>= 1;