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copsnrob: fix videoram oob access

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This commit is contained in:
hap 2022-11-04 20:23:28 +01:00
parent e77e77d51c
commit af440587a3
1 changed files with 1 additions and 2 deletions
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3
src/mame/atari/copsnrob_v.cpp
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@ -13,8 +13,7 @@
uint32_t copsnrob_state::screen_update_copsnrob(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) uint32_t copsnrob_state::screen_update_copsnrob(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{ {
/* redrawing the entire display is faster in this case */ /* redrawing the entire display is faster in this case */
for (int offs = 0; offs < m_videoram.bytes(); offs++)
for (int offs = m_videoram.bytes(); offs >= 0; offs--)
{ {
int const sx = 31 - (offs % 32); int const sx = 31 - (offs % 32);
int const sy = offs / 32; int const sy = offs / 32;