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fix sprite overflow regression

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This commit is contained in:
Michaël Banaan Ananas 2011-12-14 19:06:36 +00:00
parent 6b01f43a07
commit 2c4e0ef336
1 changed files with 5 additions and 3 deletions
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8
src/emu/video/tms9928a.c
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@ -475,8 +475,7 @@ void tms9928a_device::device_timer(emu_timer &timer, device_timer_id id, int par
{ {
int spr_y = m_vMem[ m_spriteattribute + sprattr + 0 ]; int spr_y = m_vMem[ m_spriteattribute + sprattr + 0 ];
if (!fifth_encountered) m_FifthSprite = sprattr / 4;
m_FifthSprite = sprattr / 4;
/* Stop processing sprites */ /* Stop processing sprites */
if ( spr_y == 208 ) if ( spr_y == 208 )
@ -499,8 +498,11 @@ void tms9928a_device::device_timer(emu_timer &timer, device_timer_id id, int par
num_sprites++; num_sprites++;
/* Fifth sprite encountered? */ /* Fifth sprite encountered? */
if( num_sprites == 5 ) if ( num_sprites == 5 )
{
fifth_encountered = true; fifth_encountered = true;
break;
}
if ( sprite_mag ) if ( sprite_mag )
pataddr += ( ( ( y - spr_y ) & 0x1F ) >> 1 ); pataddr += ( ( ( y - spr_y ) & 0x1F ) >> 1 );