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better video rendering

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This commit is contained in:
David Haywood 2013-03-01 13:58:18 +00:00
parent ccb1dae48d
commit 4b3f8fe5f9
1 changed files with 16 additions and 4 deletions
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20
src/mame/drivers/gunpey.c
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@ -262,8 +262,8 @@ UINT32 gunpey_state::screen_update_gunpey(screen_device &screen, bitmap_ind16 &b
//UINT32 col = 0xffffff;
UINT32 val = (m_wram[count+1] << 16) | ((m_wram[count+2]));
// UINT32 val = (m_wram[count+1] << 16) | ((m_wram[count+2]));
#ifdef USE_FAKE_ROM
int letter = -1;
@ -318,10 +318,22 @@ SOUND TEST
if (val == 0xa080e03a) { letter = 'Z'; }
#endif
int xsource = ((val & 0x000000ff) << 4) | ((val & 0xf0000000) >> 28);
int ysource = ((val & 0x0000f000) >> 10);
int xsource = ((m_wram[count+2] & 0x00ff) << 4) | ((m_wram[count+1] & 0xf000) >> 12);
int ysource = ((m_wram[count+2] & 0xf000) >> 12)| ((m_wram[count+3] & 0x00ff) << 4);
//printf("%08x %04x %04x\n", val, m_wram[count+1],m_wram[count+2] );
// UINT16 xsource = (m_wram[count+2] & 0x00ff << 4) | (m_wram[count+1] & 0xf000 >> 12);
// UINT16 ysource = (m_wram[count+2] & 0xff00 >>8) | (m_wram[count+3] & 0x000f <<8);
//xsource<<=1;
xsource<<=1;
ysource <<=2;
#ifdef USE_FAKE_ROM
if (letter != -1)