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psikyo.cpp: Fix crash due to incorrect shift calculation (nw)

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AJR 2018-04-01 23:13:39 -04:00
parent b14f311035
commit 0004139941
1 changed files with 2 additions and 1 deletions
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3
src/mame/video/psikyo.cpp
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@ -487,7 +487,8 @@ uint32_t psikyo_state::screen_update_psikyo(screen_device &screen, bitmap_ind16
tmptilemap[layer]->set_scrolly(0, scrolly[layer]);
if (layer_ctrl[layer] & 0x0300) /* per-line rowscroll */
{
int tile_rowscroll = (layer_ctrl[layer] & 0x0200) >> 5; /* per-tile rowscroll */
int tile_rowscroll = (layer_ctrl[layer] & 0x0200) >> 7; /* per-tile rowscroll */
assert(tile_rowscroll == 0 || tile_rowscroll == 4);
if (m_old_linescroll[layer] != (layer_ctrl[layer] & 0x0300))
{
tmptilemap[layer]->set_scroll_rows(tilemap_width(tmsize[layer]) >> tile_rowscroll);