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Fix for Odd bit

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This commit is contained in:
Angelo Salese 2013-02-12 23:18:15 +00:00
parent 7a8f464966
commit bfaa10b8ca
1 changed files with 1 additions and 7 deletions
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8
src/emu/video/stvvdp2.c
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@ -6244,19 +6244,13 @@ UINT8 saturn_state::get_vblank( void )
UINT8 saturn_state::get_odd_bit( void ) UINT8 saturn_state::get_odd_bit( void )
{ {
int cur_v;
cur_v = machine().primary_screen->vpos();
if(STV_VDP2_HRES & 4) //exclusive monitor mode makes this bit to be always 1 if(STV_VDP2_HRES & 4) //exclusive monitor mode makes this bit to be always 1
return 1; return 1;
if(STV_VDP2_LSMD == 0) // same for non-interlace mode if(STV_VDP2_LSMD == 0) // same for non-interlace mode
return 1; return 1;
if(cur_v % 2) return machine().primary_screen->frame_number() & 1;
return 1;
return 0;
} }
void saturn_state::stv_vdp2_state_save_postload( void ) void saturn_state::stv_vdp2_state_save_postload( void )