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Update PhotoY2k2's protection simulation to get us in-game. 

Still not playable though, as the sprite offsets are encrypted.
This commit is contained in:
iq_132 2014-08-28 03:55:57 +00:00
parent 61aed3f05f
commit 3ea8389f83
1 changed files with 20 additions and 12 deletions
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32
src/burn/drv/pgm/pgm_prot.cpp
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@ -2647,13 +2647,27 @@ static void py2k2_asic27a_sim_command(UINT8 command)
{ {
switch (command) switch (command)
{ {
case 0x99: // Reset? case 0x30: // Sprite sequence, advance to next sprite
asic27a_sim_key = 0x100;
asic27a_sim_response = 0x880000 | (PgmInput[7] << 8);
break; break;
case 0x38: // ? case 0x32: // Sprite sequence, decode offset
asic27a_sim_response = 0x880000; break;
// case 0x33:
// case 0x34:
// case 0x35: // table?
// case 0x38: // ?
// break;
// "CCHANGE.C 285 ( TIME >= VALUE1 ) && TIME <= ALL_LEV_TIME )
case 0xba: // ??
asic27a_sim_response = asic27a_sim_value + 1; // gets us in-game
break;
case 0x99: // Reset?
asic27a_sim_key = 0x100;
photoy2k_seqpos = 0;
asic27a_sim_response = 0x880000 | (PgmInput[7] << 8);
break; break;
case 0xc0: case 0xc0:
@ -2688,15 +2702,9 @@ static void py2k2_asic27a_sim_command(UINT8 command)
} }
break; break;
// case 0x32: // ?
// break;
// case 0xba: // almost definitely a table...
// break;
default: default:
asic27a_sim_response = 0x880000; asic27a_sim_response = 0x880000;
bprintf (0, _T("Uknown ASIC Command %2.2x Value: %4.4x\n"), command, asic27a_sim_value); bprintf (0, _T("Unknown ASIC Command %2.2x Value: %4.4x\n"), command, asic27a_sim_value);
break; break;
} }
} }