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puzzli2 level data stream notes (nw)

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This commit is contained in:
David Haywood 2013-08-02 16:37:25 +00:00
parent 95965cebb6
commit ccd10685e6
1 changed files with 140 additions and 20 deletions
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160
src/mame/machine/pgmprot_igs027a_type1.c
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@ -564,6 +564,27 @@ void pgm_arm_type1_state::command_handler_ddp3(int pc)
/* preliminary */
// not accurate, low bits (0x03 mask) are certainly wrong, possibly others
UINT8 puzzli2_level_decode[256] = {
0x32, 0x3e, 0xb2, 0x37, 0x31, 0x22, 0xd6, 0x0d, 0x35, 0x5c, 0x8d, 0x3c, 0x7a, 0x5f, 0xd4, 0xad,
0x53, 0xff, 0xe9, 0x45, 0xed, 0x11, 0x68, 0x77, 0xd8, 0x34, 0x36, 0x45, 0xa6, 0xeb, 0x1c, 0xc7,
0x3b, 0xbd, 0xad, 0x2f, 0x18, 0xde, 0xa1, 0xaa, 0xdd, 0x50, 0x57, 0xc2, 0xe5, 0x0a, 0x01, 0x6d,
0x67, 0x65, 0x14, 0x70, 0xb7, 0x39, 0x24, 0x79, 0x83, 0xd2, 0x71, 0xb9, 0x10, 0xf5, 0x92, 0x93,
0xfa, 0xe4, 0x5e, 0xb0, 0xf6, 0xaf, 0x95, 0x8a, 0x7d, 0x73, 0xf9, 0x63, 0x86, 0xcb, 0x1a, 0x56,
0xf1, 0x3a, 0xae, 0x63, 0x01, 0x29, 0x96, 0x22, 0x8f, 0x5d, 0x9a, 0x65, 0x74, 0x21, 0x20, 0x40,
0xd3, 0x05, 0xa2, 0xe3, 0xbc, 0x9e, 0x1e, 0x10, 0x15, 0x0c, 0x8a, 0x9c, 0xec, 0x38, 0xb6, 0x9d,
0x2a, 0xf7, 0x14, 0x0e, 0x85, 0xc7, 0x7f, 0xce, 0x94, 0x16, 0x48, 0xa9, 0x80, 0x6e, 0x78, 0xd8,
0xa6, 0x7e, 0x42, 0xe4, 0xa2, 0x2b, 0xef, 0xed, 0x24, 0xba, 0xb8, 0x7e, 0xc9, 0x2b, 0x90, 0xcc,
0x58, 0xd1, 0xf3, 0xe2, 0x6f, 0xed, 0x9f, 0xf0, 0x4a, 0x54, 0x8d, 0x08, 0xf8, 0x51, 0x68, 0xc8,
0x03, 0x0b, 0xbb, 0xc1, 0xe2, 0x4c, 0x04, 0xc5, 0x8c, 0x09, 0x0e, 0xbf, 0x62, 0x48, 0x75, 0x59,
0x1d, 0x80, 0xdf, 0x60, 0x07, 0xe2, 0x1b, 0x67, 0xa5, 0xbf, 0xcd, 0x86, 0xdc, 0xc3, 0x6a, 0x4e,
0xd0, 0xfc, 0xd5, 0x3f, 0x98, 0x96, 0x2e, 0x4c, 0xb3, 0xea, 0x2d, 0x75, 0xe6, 0xc0, 0x6c, 0x69,
0x9b, 0xb7, 0x43, 0x8b, 0x41, 0x47, 0x02, 0xda, 0x98, 0x3d, 0xa3, 0x79, 0x10, 0x4f, 0xb4, 0x55,
0x5a, 0x25, 0xf4, 0xc8, 0x58, 0x30, 0xc4, 0x12, 0xa9, 0x45, 0xda, 0x91, 0xa4, 0xaa, 0xfc, 0x84,
0xfa, 0x88, 0x06, 0xce, 0xfe, 0x32, 0xd5, 0x28, 0x1d, 0x19, 0x4b, 0xb1, 0x83, 0xf2, 0x72, 0x26,
};
static int hackcount = 0;
static int hackcount2 = 0;
static int hack_47_value = 0;
@ -710,28 +731,10 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
*/
// these table aren't accurate yet, generated with analysis of data sent, we never
// see the direct results of this operation (happens inside the MCU)
UINT8 puzzli2_level_decode[256] = {
0x32, 0x3e, 0xb2, 0x37, 0x31, 0x22, 0xd6, 0x0d, 0x35, 0x5c, 0x8d, 0x3c, 0x7a, 0x5f, 0xd4, 0xad,
0x53, 0xff, 0xe9, 0x45, 0xed, 0x11, 0x68, 0x77, 0xd8, 0x34, 0x36, 0x45, 0xa6, 0xeb, 0x1c, 0xc7,
0x3b, 0xbd, 0xad, 0x2f, 0x18, 0xde, 0xa1, 0xaa, 0xdd, 0x50, 0x57, 0xc2, 0xe5, 0x0a, 0x01, 0x6d,
0x67, 0x65, 0x14, 0x70, 0xb7, 0x39, 0x24, 0x79, 0x83, 0xd2, 0x71, 0xb9, 0x10, 0xf5, 0x92, 0x93,
0xfa, 0xe4, 0x5e, 0xb0, 0xf6, 0xaf, 0x95, 0x8a, 0x7d, 0x73, 0xf9, 0x63, 0x86, 0xcb, 0x1a, 0x56,
0xf1, 0x3a, 0xae, 0x63, 0x01, 0x29, 0x96, 0x22, 0x8f, 0x5d, 0x9a, 0x65, 0x74, 0x21, 0x20, 0x40,
0xd3, 0x05, 0xa2, 0xe3, 0xbc, 0x9e, 0x1e, 0x10, 0x15, 0x0c, 0x8a, 0x9c, 0xec, 0x38, 0xb6, 0x9d,
0x2a, 0xf7, 0x14, 0x0e, 0x85, 0xc7, 0x7f, 0xce, 0x94, 0x16, 0x48, 0xa9, 0x80, 0x6e, 0x78, 0xd8,
0xa6, 0x7e, 0x42, 0xe4, 0xa2, 0x2b, 0xef, 0xed, 0x24, 0xba, 0xb8, 0x7e, 0xc9, 0x2b, 0x90, 0xcc,
0x58, 0xd1, 0xf3, 0xe2, 0x6f, 0xed, 0x9f, 0xf0, 0x4a, 0x54, 0x8d, 0x08, 0xf8, 0x51, 0x68, 0xc8,
0x03, 0x0b, 0xbb, 0xc1, 0xe2, 0x4c, 0x04, 0xc5, 0x8c, 0x09, 0x0e, 0xbf, 0x62, 0x48, 0x75, 0x59,
0x1d, 0x80, 0xdf, 0x60, 0x07, 0xe2, 0x1b, 0x67, 0xa5, 0xbf, 0xcd, 0x86, 0xdc, 0xc3, 0x6a, 0x4e,
0xd0, 0xfc, 0xd5, 0x3f, 0x98, 0x96, 0x2e, 0x4c, 0xb3, 0xea, 0x2d, 0x75, 0xe6, 0xc0, 0x6c, 0x69,
0x9b, 0xb7, 0x43, 0x8b, 0x41, 0x47, 0x02, 0xda, 0x98, 0x3d, 0xa3, 0x79, 0x10, 0x4f, 0xb4, 0x55,
0x5a, 0x25, 0xf4, 0xc8, 0x58, 0x30, 0xc4, 0x12, 0xa9, 0x45, 0xda, 0x91, 0xa4, 0xaa, 0xfc, 0x84,
0xfa, 0x88, 0x06, 0xce, 0xfe, 0x32, 0xd5, 0x28, 0x1d, 0x19, 0x4b, 0xb1, 0x83, 0xf2, 0x72, 0x26,
};
printf("%08x: %02x %04x | ",pc, m_ddp3lastcommand, m_value0);
@ -1818,6 +1821,123 @@ DRIVER_INIT_MEMBER(pgm_arm_type1_state,puzzli2)
m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x500000, 0x500005, read16_delegate(FUNC(pgm_arm_type1_state::pgm_arm7_type1_sim_r),this), write16_delegate(FUNC(pgm_arm_type1_state::pgm_arm7_type1_sim_w),this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x4f0000, 0x4f003f, read16_delegate(FUNC(pgm_arm_type1_state::pgm_arm7_type1_sim_protram_r),this));
m_irq4_disabled = 1; // // doesn't like this irq??
#ifdef PUZZLI2_LEVEL_STRUCTURE_LOG
UINT8 *src2 = (UINT8 *) (machine().root_device().memregion("maincpu")->base());
int offset;
int limit;
if (!strcmp(machine().system().name,"puzzli2"))
{
offset = 0x17ab66;
limit = 476;
}
else
{
offset = 0x16c3ca;
limit = 500;
}
for (int i=0;i<limit;i++)
{
UINT32 val1 = (src2[offset+1]<<24) | (src2[offset+0] << 16) | (src2[offset+3]<<8) | (src2[offset+2] << 0);
offset += 4;
UINT32 val2 = (src2[offset+1]<<24) | (src2[offset+0] << 16) | (src2[offset+3]<<8) | (src2[offset+2] << 0);
int stage = 0;
printf("(%d) data range %08x %08x\n", i, val1, val2);
int tableoffs = 0;
int tableoffs2 = 0;
int entries_left = 0;
int currentcolumn = 0;
int num_entries = 0;
int x = 0;
for (x=val1; x<val2;x++)
{
if (x==val1)
{
printf("%02x <- table offset\n", src2[x^1]);
tableoffs = src2[x^1];
tableoffs2 = 0;
}
else
{
UINT8 rawvalue = src2[x^1];
UINT8 tableloc = (tableoffs+tableoffs2)&0xff;
rawvalue ^= puzzli2_level_decode[tableloc];
tableoffs2++;
tableoffs2&=0xf;
if (stage==0)
{
printf("%02x <- Unknown\n", rawvalue);
stage = 1;
}
else if (stage==1)
{
printf("%02x <- Number of Entries for this Column (column is %d) (xor table location is %02x) ", rawvalue, currentcolumn, tableloc);
stage = 2;
entries_left = (rawvalue >> 4);
num_entries = entries_left;
if (num_entries == 0x00)
{
printf("0 entries for this column?"); // seems a valid condition based on the data
}
printf("\n");
}
else if (stage==2)
{
printf("%02x <- Mask value equal to number of entries\n", rawvalue);
stage = 3;
//
if (entries_left == 0)
{
// for 0 entries skip back to state 1 instead of 3, because there is nothing following
stage = 1;
}
}
else if (stage==3)
{
printf("%02x <- fish\n", rawvalue);
entries_left--;
if (entries_left == 0)
{
stage = 1;
currentcolumn++;
}
}
}
}
if (entries_left!=0)
{
printf("last column didn't terminate (sometimes this is ok, streams are padded to a word)\n");
UINT8 lastbyte = src2[(x-1)^1];
printf("last (pre-decrypted) byte in stream was %02x if this is 00 we're probably ok\n", lastbyte);
}
printf("\n");
}
#endif
}
DRIVER_INIT_MEMBER(pgm_arm_type1_state,py2k2)