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Fix olds High Score screen (improve protection emulation) [rockywall, Creamy Mami, JackC, IQ_132]

This commit is contained in:
iq_132 2013-08-13 00:06:03 +00:00
parent b2aa83764a
commit 295dc06847
1 changed files with 33 additions and 5 deletions
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38
src/burn/drv/pgm/pgm_prot.cpp
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@ -3208,13 +3208,41 @@ static void __fastcall olds_protection_w(UINT32 offset, UINT16 data)
case 0x64: // incomplete...
{
UINT16 p1 = sharedprotram[0x3050 / 2];
UINT16 p2 = sharedprotram[0x3082 / 2];
UINT16 p1 = sharedprotram[0x3050 / 2];
UINT16 p2 = sharedprotram[0x3082 / 2];
UINT16 p3 = sharedprotram[0x3054 / 2];
UINT16 p4 = sharedprotram[0x3088 / 2];
if (p2 == 0x02)
olds_write_reg(p1, olds_read_reg(p1) + 0x10000);
if (p2 == 0x02)
olds_write_reg(p1, olds_read_reg(p1) + 0x10000);
switch (p4)
{
case 0xd:
olds_write_reg(p1,olds_read_reg(p3));
break;
case 0x0:
olds_write_reg(p3,(olds_read_reg(p2))^(olds_read_reg(p1)));
break;
case 0xe:
olds_write_reg(p3,olds_read_reg(p3)+0x10000);
break;
case 0x2:
olds_write_reg(p1,(olds_read_reg(p2))+(olds_read_reg(p3)));
break;
case 0x6:
olds_write_reg(p3,(olds_read_reg(p2))&(olds_read_reg(p1)));
break;
case 0x1:
olds_write_reg(p2,olds_read_reg(p1)+0x10000);
break;
case 0x7:
olds_write_reg(p3,olds_read_reg(p1));
break;
default:
break;
}
}
break;
}
m_olds_cmd3 = ((data >> 4) + 1) & 0x3;