prot_cmc.cpp

// license:BSD-3-Clause
// copyright-holders:S. Smith,David Haywood,Fabio Priuli

#include "emu.h"
#include "prot_cmc.h"

DEFINE_DEVICE_TYPE(NG_CMC_PROT, cmc_prot_device, "ng_cmc_prot", "Neo Geo CMC42/CMC40 Protection")


cmc_prot_device::cmc_prot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
	device_t(mconfig, NG_CMC_PROT, tag, owner, clock),
	type0_t03(nullptr),
	type0_t12(nullptr),
	type1_t03(nullptr),
	type1_t12(nullptr),
	address_8_15_xor1(nullptr),
	address_8_15_xor2(nullptr),
	address_16_23_xor1(nullptr),
	address_16_23_xor2(nullptr),
	address_0_7_xor(nullptr)
{
}


void cmc_prot_device::device_start()
{
}

void cmc_prot_device::device_reset()
{
}


/***************************************************************************

NeoGeo 'C' ROM encryption

Starting with KOF99, all NeoGeo games have encrypted graphics. Additionally
to that, the data for the front text layer, which was previously stored in
a separate ROM, is stored at the end of the tile data.

The encryption is one of the nastiest implementation of a XOR scheme ever
seen, involving 9 seemingly uncorrelated 256-byte tables. All known games use
the same tables except KOF2000 and MS4 which use a different set.

The 32 data bits of every longword are decrypted in a single step (one byte at
a time), but the values to use for the xor are determined in a convoluted way.
It's actually so convoluted that it's too difficult to describe - please refer
to the source below.
Suffice to say that bytes are handled in couples (0&3 and 1&2), and the two xor
values are taken from three tables, the indexes inside the tables depending on
bits 0-7 and 8-15 of the address, in one case further xored through the table
used in step 5) below. Additionally, the bytes in a couple can be swapped,
depending either on bit 8 of the address, or on bit 16 xored with the table
used in step 4) below.

The 24 address bits are encrypted in five steps. Each step xors 8 bits with a
value taken from a different table; the index inside the table depends on 8
other bits.
0) xor bits  0-7  with a fixed value that changes from game to game
1) xor bits  8-15 depending on bits 16-23
2) xor bits  8-15 depending on bits  0-7
3) xor bits 16-23 depending on bits  0-7
4) xor bits 16-23 depending on bits  8-15
5) xor bits  0-7  depending on bits  8-15

Each step acts on the current value, so e.g. step 4) uses bits 8-15 as modified
by step 2).

[Note: the table used in step 1) is currently incomplete due to lack of data to
analyze]


There are two major weaknesses in this encryption algorithm, that exposed it to
a known plaintext attack.

The first weakness is that the data xor depends on the address inside the
encrypted ROM instead that on the decrypted address; together with the high
concentration of 0x00 and 0xFF in the decrypted data (more than 60% of the
total), this exposed easily recognizable patterns in the encrypted data, which
could be exploited with some simple statistical checks. The deviousness of the
xor scheme was the major difficulty.

The second weakness is that the address scrambling works on 32-bit words. Since
there are a large number of 32-bit values that appear only once in the whole
encrypted ROM space, this means that once the xor layer was broken, a large
table of encrypted-decrypted address correspondencies could be built and
analyzed, quickly leading to the algorithm.

***************************************************************************/

static const uint8_t kof99_type0_t03[256] =
{
	0xfb, 0x86, 0x9d, 0xf1, 0xbf, 0x80, 0xd5, 0x43, 0xab, 0xb3, 0x9f, 0x6a, 0x33, 0xd9, 0xdb, 0xb6,
	0x66, 0x08, 0x69, 0x88, 0xcc, 0xb7, 0xde, 0x49, 0x97, 0x64, 0x1f, 0xa6, 0xc0, 0x2f, 0x52, 0x42,
	0x44, 0x5a, 0xf2, 0x28, 0x98, 0x87, 0x96, 0x8a, 0x83, 0x0b, 0x03, 0x61, 0x71, 0x99, 0x6b, 0xb5,
	0x1a, 0x8e, 0xfe, 0x04, 0xe1, 0xf7, 0x7d, 0xdd, 0xed, 0xca, 0x37, 0xfc, 0xef, 0x39, 0x72, 0xda,
	0xb8, 0xbe, 0xee, 0x7f, 0xe5, 0x31, 0x78, 0xf3, 0x91, 0x9a, 0xd2, 0x11, 0x19, 0xb9, 0x09, 0x4c,
	0xfd, 0x6d, 0x2a, 0x4d, 0x65, 0xa1, 0x89, 0xc7, 0x75, 0x50, 0x21, 0xfa, 0x16, 0x00, 0xe9, 0x12,
	0x74, 0x2b, 0x1e, 0x4f, 0x14, 0x01, 0x70, 0x3a, 0x4e, 0x3f, 0xf5, 0xf4, 0x1d, 0x3d, 0x15, 0x27,
	0xa7, 0xff, 0x45, 0xe0, 0x6e, 0xf9, 0x54, 0xc8, 0x48, 0xad, 0xa5, 0x0a, 0xf6, 0x2d, 0x2c, 0xe2,
	0x68, 0x67, 0xd6, 0x85, 0xb4, 0xc3, 0x34, 0xbc, 0x62, 0xd3, 0x5f, 0x84, 0x06, 0x5b, 0x0d, 0x95,
	0xea, 0x5e, 0x9e, 0xd4, 0xeb, 0x90, 0x7a, 0x05, 0x81, 0x57, 0xe8, 0x60, 0x2e, 0x20, 0x25, 0x7c,
	0x46, 0x0c, 0x93, 0xcb, 0xbd, 0x17, 0x7e, 0xec, 0x79, 0xb2, 0xc2, 0x22, 0x41, 0xb1, 0x10, 0xac,
	0xa8, 0xbb, 0x9b, 0x82, 0x4b, 0x9c, 0x8b, 0x07, 0x47, 0x35, 0x24, 0x56, 0x8d, 0xaf, 0xe6, 0x26,
	0x40, 0x38, 0xc4, 0x5d, 0x1b, 0xc5, 0xd1, 0x0f, 0x6c, 0x7b, 0xb0, 0xe3, 0xa3, 0x23, 0x6f, 0x58,
	0xc1, 0xba, 0xcf, 0xd7, 0xa2, 0xe7, 0xd0, 0x63, 0x5c, 0xf8, 0x73, 0xa0, 0x13, 0xdc, 0x29, 0xcd,
	0xc9, 0x76, 0xae, 0x8f, 0xe4, 0x59, 0x30, 0xaa, 0x94, 0x1c, 0x3c, 0x0e, 0x55, 0x92, 0x77, 0x32,
	0xc6, 0xce, 0x18, 0x36, 0xdf, 0xa9, 0x8c, 0xd8, 0xa4, 0xf0, 0x3b, 0x51, 0x4a, 0x02, 0x3e, 0x53,
};


static const uint8_t kof99_type0_t12[256] =
{
	0x1f, 0xac, 0x4d, 0xcd, 0xca, 0x70, 0x02, 0x6b, 0x18, 0x40, 0x62, 0xb2, 0x3f, 0x9b, 0x5b, 0xef,
	0x69, 0x68, 0x71, 0x3b, 0xcb, 0xd4, 0x30, 0xbc, 0x47, 0x72, 0x74, 0x5e, 0x84, 0x4c, 0x1b, 0xdb,
	0x6a, 0x35, 0x1d, 0xf5, 0xa1, 0xb3, 0x87, 0x5d, 0x57, 0x28, 0x2f, 0xc4, 0xfd, 0x24, 0x26, 0x36,
	0xad, 0xbe, 0x61, 0x63, 0x73, 0xaa, 0x82, 0xee, 0x29, 0xd0, 0xdf, 0x8c, 0x15, 0xb5, 0x96, 0xf3,
	0xdd, 0x7e, 0x3a, 0x37, 0x58, 0x7f, 0x0c, 0xfc, 0x0b, 0x07, 0xe8, 0xf7, 0xf4, 0x14, 0xb8, 0x81,
	0xb6, 0xd7, 0x1e, 0xc8, 0x85, 0xe6, 0x9d, 0x33, 0x60, 0xc5, 0x95, 0xd5, 0x55, 0x00, 0xa3, 0xb7,
	0x7d, 0x50, 0x0d, 0xd2, 0xc1, 0x12, 0xe5, 0xed, 0xd8, 0xa4, 0x9c, 0x8f, 0x2a, 0x4f, 0xa8, 0x01,
	0x52, 0x83, 0x65, 0xea, 0x9a, 0x6c, 0x44, 0x4a, 0xe2, 0xa5, 0x2b, 0x46, 0xe1, 0x34, 0x25, 0xf8,
	0xc3, 0xda, 0xc7, 0x6e, 0x48, 0x38, 0x7c, 0x78, 0x06, 0x53, 0x64, 0x16, 0x98, 0x3c, 0x91, 0x42,
	0x39, 0xcc, 0xb0, 0xf1, 0xeb, 0x13, 0xbb, 0x05, 0x32, 0x86, 0x0e, 0xa2, 0x0a, 0x9e, 0xfa, 0x66,
	0x54, 0x8e, 0xd3, 0xe7, 0x19, 0x20, 0x77, 0xec, 0xff, 0xbd, 0x6d, 0x43, 0x23, 0x03, 0xab, 0x75,
	0x3d, 0xcf, 0xd1, 0xde, 0x92, 0x31, 0xa7, 0x45, 0x4b, 0xc2, 0x97, 0xf9, 0x7a, 0x88, 0xd9, 0x1c,
	0xe9, 0xe4, 0x10, 0xc9, 0x22, 0x2d, 0x90, 0x76, 0x17, 0x79, 0x04, 0x51, 0x1a, 0x5a, 0x5f, 0x2c,
	0x21, 0x6f, 0x3e, 0xe0, 0xf0, 0xbf, 0xd6, 0x94, 0x0f, 0x80, 0x11, 0xa0, 0x5c, 0xa9, 0x49, 0x2e,
	0xce, 0xaf, 0xa6, 0x9f, 0x7b, 0x99, 0xb9, 0xb4, 0xe3, 0xfb, 0xf6, 0x27, 0xf2, 0x93, 0xfe, 0x08,
	0x67, 0xae, 0x09, 0x89, 0xdc, 0x4e, 0xc6, 0xc0, 0x8a, 0xb1, 0x59, 0x8b, 0x41, 0x56, 0x8d, 0xba,
};


static const uint8_t kof99_type1_t03[256] =
{
	0xa9, 0x17, 0xaf, 0x0d, 0x34, 0x6e, 0x53, 0xb6, 0x7f, 0x58, 0xe9, 0x14, 0x5f, 0x55, 0xdb, 0xd4,
	0x42, 0x80, 0x99, 0x59, 0xa8, 0x3a, 0x57, 0x5d, 0xd5, 0x6f, 0x4c, 0x68, 0x35, 0x46, 0xa6, 0xe7,
	0x7b, 0x71, 0xe0, 0x93, 0xa2, 0x1f, 0x64, 0x21, 0xe3, 0xb1, 0x98, 0x26, 0xab, 0xad, 0xee, 0xe5,
	0xbb, 0xd9, 0x1e, 0x2e, 0x95, 0x36, 0xef, 0x23, 0x79, 0x45, 0x04, 0xed, 0x13, 0x1d, 0xf4, 0x85,
	0x96, 0xec, 0xc2, 0x32, 0xaa, 0x7c, 0x15, 0xd8, 0xda, 0x92, 0x90, 0x9d, 0xb7, 0x56, 0x6a, 0x66,
	0x41, 0xfc, 0x00, 0xf6, 0x50, 0x24, 0xcf, 0xfb, 0x11, 0xfe, 0x82, 0x48, 0x9b, 0x27, 0x1b, 0x67,
	0x4e, 0x84, 0x69, 0x97, 0x6d, 0x8c, 0xd2, 0xba, 0x74, 0xf9, 0x8f, 0xa5, 0x54, 0x5c, 0xcd, 0x73,
	0x07, 0xd1, 0x01, 0x09, 0xf1, 0x19, 0x3b, 0x5e, 0x87, 0x30, 0x76, 0xcc, 0xc0, 0x5a, 0xa7, 0x49,
	0x22, 0xfa, 0x16, 0x02, 0xdf, 0xa4, 0xff, 0xb3, 0x75, 0x33, 0xbd, 0x88, 0x2f, 0xcb, 0x2a, 0x44,
	0xb8, 0xbf, 0x1c, 0x0f, 0x81, 0x10, 0x43, 0xb4, 0xc8, 0x7e, 0x9a, 0x25, 0xea, 0x83, 0x4b, 0x38,
	0x7a, 0xd7, 0x3d, 0x1a, 0x4f, 0x62, 0x51, 0xc9, 0x47, 0x0e, 0xce, 0x3f, 0xc7, 0x4d, 0x2c, 0xa1,
	0x86, 0xb9, 0xc5, 0xca, 0xdd, 0x6b, 0x70, 0x6c, 0x91, 0x9c, 0xbe, 0x0a, 0x9f, 0xf5, 0x94, 0xbc,
	0x18, 0x2b, 0x60, 0x20, 0x29, 0xf7, 0xf2, 0x28, 0xc4, 0xa0, 0x0b, 0x65, 0xde, 0x8d, 0x78, 0x12,
	0x3e, 0xd0, 0x77, 0x08, 0x8b, 0xae, 0x05, 0x31, 0x3c, 0xd6, 0xa3, 0x89, 0x06, 0xdc, 0x52, 0x72,
	0xb0, 0xb5, 0x37, 0xd3, 0xc3, 0x8a, 0xc6, 0xf0, 0xc1, 0x61, 0xfd, 0x4a, 0x5b, 0x7d, 0x9e, 0xf3,
	0x63, 0x40, 0x2d, 0xe8, 0xb2, 0xe6, 0x39, 0x03, 0xeb, 0x8e, 0xe1, 0x0c, 0xe4, 0xe2, 0xf8, 0xac,
};


static const uint8_t kof99_type1_t12[256] =
{
	0xea, 0xe6, 0x5e, 0xa7, 0x8e, 0xac, 0x34, 0x03, 0x30, 0x97, 0x52, 0x53, 0x76, 0xf2, 0x62, 0x0b,
	0x0a, 0xfc, 0x94, 0xb8, 0x67, 0x36, 0x11, 0xbc, 0xae, 0xca, 0xfa, 0x15, 0x04, 0x2b, 0x17, 0xc4,
	0x3e, 0x5b, 0x59, 0x01, 0x57, 0xe2, 0xba, 0xb7, 0xd1, 0x3f, 0xf0, 0x6a, 0x9c, 0x2a, 0xcb, 0xa9,
	0xe3, 0x2c, 0xc0, 0x0f, 0x46, 0x91, 0x8a, 0xd0, 0x98, 0xc5, 0xa6, 0x1b, 0x96, 0x29, 0x12, 0x09,
	0x63, 0xed, 0xe0, 0xa2, 0x86, 0x77, 0xbe, 0xe5, 0x65, 0xdb, 0xbd, 0x50, 0xb3, 0x9d, 0x1a, 0x4e,
	0x79, 0x0c, 0x00, 0x43, 0xdf, 0x3d, 0x54, 0x33, 0x8f, 0x89, 0xa8, 0x7b, 0xf9, 0xd5, 0x27, 0x82,
	0xbb, 0xc2, 0x8c, 0x47, 0x88, 0x6b, 0xb4, 0xc3, 0xf8, 0xaa, 0x06, 0x1e, 0x83, 0x7d, 0x05, 0x78,
	0x85, 0xf6, 0x6e, 0x2e, 0xec, 0x5a, 0x31, 0x45, 0x38, 0x14, 0x16, 0x8b, 0x02, 0xe4, 0x4f, 0xb0,
	0xbf, 0xab, 0xa4, 0x9e, 0x48, 0x60, 0x19, 0x35, 0x08, 0xde, 0xdd, 0x66, 0x90, 0x51, 0xcc, 0xa3,
	0xaf, 0x70, 0x9b, 0x75, 0x95, 0x49, 0x6c, 0x64, 0x72, 0x7e, 0x44, 0xa0, 0x73, 0x25, 0x68, 0x55,
	0x1f, 0x40, 0x7a, 0x74, 0x0e, 0x8d, 0xdc, 0x1c, 0x71, 0xc8, 0xcf, 0xd7, 0xe8, 0xce, 0xeb, 0x32,
	0x3a, 0xee, 0x07, 0x61, 0x4d, 0xfe, 0x5c, 0x7c, 0x56, 0x2f, 0x2d, 0x5f, 0x6f, 0x9f, 0x81, 0x22,
	0x58, 0x4b, 0xad, 0xda, 0xb9, 0x10, 0x18, 0x23, 0xe1, 0xf3, 0x6d, 0xe7, 0xe9, 0x28, 0xd6, 0xd8,
	0xf4, 0x4c, 0x39, 0x21, 0xb2, 0x84, 0xc1, 0x24, 0x26, 0xf1, 0x93, 0x37, 0xc6, 0x4a, 0xcd, 0x20,
	0xc9, 0xd9, 0xc7, 0xb1, 0xff, 0x99, 0xd4, 0x5d, 0xb5, 0xa1, 0x87, 0x0d, 0x69, 0x92, 0x13, 0x80,
	0xd2, 0xd3, 0xfd, 0x1d, 0xf5, 0x3b, 0xa5, 0x7f, 0xef, 0x9a, 0xb6, 0x42, 0xfb, 0x3c, 0xf7, 0x41,
};


/* underlined values are wrong (not enough evidence, FF fill in kof99 and garou) */
/* they correspond to tiles 7d000-7efff */
static const uint8_t kof99_address_8_15_xor1[256] =
{
	0x00, 0xb1, 0x1e, 0xc5, 0x3d, 0x40, 0x45, 0x5e, 0xf2, 0xf8, 0x04, 0x63, 0x36, 0x87, 0x88, 0xbf,
	0xab, 0xcc, 0x78, 0x08, 0xdd, 0x20, 0xd4, 0x35, 0x09, 0x8e, 0x44, 0xae, 0x33, 0xa9, 0x9e, 0xcd,
	0xb3, 0xe5, 0xad, 0x41, 0xda, 0xbe, 0xf4, 0x16, 0x57, 0x2e, 0x53, 0x67, 0xaf, 0xdb, 0x8a, 0xd8,
	0x34, 0x17, 0x3c, 0x01, 0x55, 0x73, 0xcf, 0xe3, 0xe8, 0xc7, 0x0d, 0xe9, 0xa3, 0x13, 0x0c, 0xf6,
	0x90, 0x4e, 0xfb, 0x97, 0x6d, 0x5f, 0xa8, 0x71, 0x11, 0xfc, 0xd1, 0x95, 0x81, 0xba, 0x8c, 0x1b,
	0x39, 0xfe, 0xa2, 0x15, 0xa6, 0x52, 0x4d, 0x5b, 0x59, 0xa5, 0xe0, 0x96, 0xd9, 0x8f, 0x7b, 0xed,
	0x29, 0xd3, 0x1f, 0x0e, 0xec, 0x23, 0x0f, 0xb8, 0x6c, 0x6f, 0x7d, 0x18, 0x46, 0xd6, 0xe4, 0xb5,
	0x9a, 0x79, 0x02, 0xf5, 0x03, 0xc0, 0x60, 0x66, 0x5c, 0x2f, 0x76, 0x85, 0x9d, 0x54, 0x1a, 0x6a,
	0x28, 0xce, 0x7f, 0x7c, 0x91, 0x99, 0x4c, 0x83, 0x3e, 0xb4, 0x1d, 0x05, 0xc1, 0xc3, 0xd7, 0x47,
	0xde, 0xbc, 0x62, 0x6e, 0x86, 0x14, 0x80, 0x77, 0xeb, 0xf3, 0x07, 0x31, 0x56, 0xd2, 0xc2, 0xc6,
	0x6b, 0xdc, 0xfd, 0x22, 0x92, 0xf0, 0x06, 0x51, 0x2d, 0x38, 0xe6, 0xa0, 0x25, 0xdf, 0xd5, 0x2c,
	0x1c, 0x94, 0x12, 0x9c, 0xb0, 0x9b, 0xc4, 0x0b, 0xc8, 0xd0, 0xf7, 0x30, 0xcb, 0x27, 0xfa, 0x7a,
	0x10, 0x61, 0xaa, 0xa4, 0x70, 0xb7, 0x2a, 0x5a, 0xc9, 0xf1, 0x0a, 0x49, 0x65, 0xee, 0x69, 0x4b,
	0x3a, 0x8d, 0x32, 0x5d, 0x68, 0xb9, 0x9f, 0x75, 0x19, 0x3f, 0xac, 0x37, 0x4f, 0xe7, 0x93, 0x89,
	0x7e, 0x4a, 0x3b, 0xea, 0x74, 0x72, 0x43, 0xbd, 0x24, 0xef, 0xb6, 0xff, 0x64, 0x58, 0x84, 0x8b,
	0xa7, 0xbb, 0xb2, 0xe1, 0x26, 0x2b, 0x50, 0xca, 0x21, 0xf9, 0x98, 0xa1, 0xe2, 0x42, 0x82, 0x48,
//                                                              ^^^^  ^^^^  ^^^^  ^^^^
};


static const uint8_t kof99_address_8_15_xor2[256] =
{
	0x9b, 0x9d, 0xc1, 0x3d, 0xa9, 0xb8, 0xf4, 0x6f, 0xf6, 0x25, 0xc7, 0x47, 0xd5, 0x97, 0xdf, 0x6b,
	0xeb, 0x90, 0xa4, 0xb2, 0x5d, 0xf5, 0x66, 0xb0, 0xb9, 0x8b, 0x93, 0x64, 0xec, 0x7b, 0x65, 0x8c,
	0xf1, 0x43, 0x42, 0x6e, 0x45, 0x9f, 0xb3, 0x35, 0x06, 0x71, 0x96, 0xdb, 0xa0, 0xfb, 0x0b, 0x3a,
	0x1f, 0xf8, 0x8e, 0x69, 0xcd, 0x26, 0xab, 0x86, 0xa2, 0x0c, 0xbd, 0x63, 0xa5, 0x7a, 0xe7, 0x6a,
	0x5f, 0x18, 0x9e, 0xbf, 0xad, 0x55, 0xb1, 0x1c, 0x5c, 0x03, 0x30, 0xc6, 0x37, 0x20, 0xe3, 0xc9,
	0x52, 0xe8, 0xee, 0x4f, 0x01, 0x70, 0xc4, 0x77, 0x29, 0x2a, 0xba, 0x53, 0x12, 0x04, 0x7d, 0xaf,
	0x33, 0x8f, 0xa8, 0x4d, 0xaa, 0x5b, 0xb4, 0x0f, 0x92, 0xbb, 0xed, 0xe1, 0x2f, 0x50, 0x6c, 0xd2,
	0x2c, 0x95, 0xd9, 0xf9, 0x98, 0xc3, 0x76, 0x4c, 0xf2, 0xe4, 0xe5, 0x2b, 0xef, 0x9c, 0x49, 0xb6,
	0x31, 0x3b, 0xbc, 0xa1, 0xca, 0xde, 0x62, 0x74, 0xea, 0x81, 0x00, 0xdd, 0xa6, 0x46, 0x88, 0x3f,
	0x39, 0xd6, 0x23, 0x54, 0x24, 0x4a, 0xd8, 0xdc, 0xd7, 0xd1, 0xcc, 0xbe, 0x57, 0x7c, 0xda, 0x44,
	0x61, 0xce, 0xd3, 0xd4, 0xe9, 0x28, 0x80, 0xe0, 0x56, 0x8a, 0x09, 0x05, 0x9a, 0x89, 0x1b, 0xf7,
	0xf3, 0x99, 0x6d, 0x5e, 0x48, 0x91, 0xc0, 0xd0, 0xc5, 0x79, 0x78, 0x41, 0x59, 0x21, 0x2e, 0xff,
	0xc2, 0x4b, 0x38, 0x83, 0x32, 0xe6, 0xe2, 0x7f, 0x1e, 0x17, 0x58, 0x1d, 0x1a, 0xfa, 0x85, 0x82,
	0x94, 0xc8, 0x72, 0x7e, 0xb7, 0xac, 0x0e, 0xfc, 0xfd, 0x16, 0x27, 0x75, 0x8d, 0xcb, 0x08, 0xfe,
	0x0a, 0x02, 0x0d, 0x36, 0x11, 0x22, 0x84, 0x40, 0x34, 0x3e, 0x2d, 0x68, 0x5a, 0xa7, 0x67, 0xae,
	0x87, 0x07, 0x10, 0x60, 0x14, 0x73, 0x3c, 0x51, 0x19, 0xa3, 0xb5, 0xcf, 0x13, 0xf0, 0x15, 0x4e,
};


static const uint8_t kof99_address_16_23_xor1[256] =
{
	0x00, 0x5f, 0x03, 0x52, 0xce, 0xe3, 0x7d, 0x8f, 0x6b, 0xf8, 0x20, 0xde, 0x7b, 0x7e, 0x39, 0xbe,
	0xf5, 0x94, 0x18, 0x78, 0x80, 0xc9, 0x7f, 0x7a, 0x3e, 0x63, 0xf2, 0xe0, 0x4e, 0xf7, 0x87, 0x27,
	0x69, 0x6c, 0xa4, 0x1d, 0x85, 0x5b, 0xe6, 0x44, 0x25, 0x0c, 0x98, 0xc7, 0x01, 0x02, 0xa3, 0x26,
	0x09, 0x38, 0xdb, 0xc3, 0x1e, 0xcf, 0x23, 0x45, 0x68, 0x76, 0xd6, 0x22, 0x5d, 0x5a, 0xae, 0x16,
	0x9f, 0xa2, 0xb5, 0xcd, 0x81, 0xea, 0x5e, 0xb8, 0xb9, 0x9d, 0x9c, 0x1a, 0x0f, 0xff, 0xe1, 0xe7,
	0x74, 0xaa, 0xd4, 0xaf, 0xfc, 0xc6, 0x33, 0x29, 0x5c, 0xab, 0x95, 0xf0, 0x19, 0x47, 0x59, 0x67,
	0xf3, 0x96, 0x60, 0x1f, 0x62, 0x92, 0xbd, 0x89, 0xee, 0x28, 0x13, 0x06, 0xfe, 0xfa, 0x32, 0x6d,
	0x57, 0x3c, 0x54, 0x50, 0x2c, 0x58, 0x49, 0xfb, 0x17, 0xcc, 0xef, 0xb2, 0xb4, 0xf9, 0x07, 0x70,
	0xc5, 0xa9, 0xdf, 0xd5, 0x3b, 0x86, 0x2b, 0x0d, 0x6e, 0x4d, 0x0a, 0x90, 0x43, 0x31, 0xc1, 0xf6,
	0x88, 0x0b, 0xda, 0x53, 0x14, 0xdc, 0x75, 0x8e, 0xb0, 0xeb, 0x99, 0x46, 0xa1, 0x15, 0x71, 0xc8,
	0xe9, 0x3f, 0x4a, 0xd9, 0x73, 0xe5, 0x7c, 0x30, 0x77, 0xd3, 0xb3, 0x4b, 0x37, 0x72, 0xc2, 0x04,
	0x97, 0x08, 0x36, 0xb1, 0x3a, 0x61, 0xec, 0xe2, 0x1c, 0x9a, 0x8b, 0xd1, 0x1b, 0x2e, 0x9e, 0x8a,
	0xd8, 0x41, 0xe4, 0xc4, 0x40, 0x2f, 0xad, 0xc0, 0xb6, 0x84, 0x51, 0x66, 0xbb, 0x12, 0xe8, 0xdd,
	0xcb, 0xbc, 0x6f, 0xd0, 0x11, 0x83, 0x56, 0x4c, 0xca, 0xbf, 0x05, 0x10, 0xd7, 0xba, 0xfd, 0xed,
	0x8c, 0x0e, 0x4f, 0x3d, 0x35, 0x91, 0xb7, 0xac, 0x34, 0x64, 0x2a, 0xf1, 0x79, 0x6a, 0x9b, 0x2d,
	0x65, 0xf4, 0x42, 0xa0, 0x8d, 0xa7, 0x48, 0x55, 0x21, 0x93, 0x24, 0xd2, 0xa6, 0xa5, 0xa8, 0x82,
};


static const uint8_t kof99_address_16_23_xor2[256] =
{
	0x29, 0x97, 0x1a, 0x2c, 0x0b, 0x94, 0x3e, 0x75, 0x01, 0x0d, 0x1b, 0xe1, 0x4d, 0x38, 0x39, 0x8f,
	0xe7, 0xd0, 0x60, 0x90, 0xb2, 0x0f, 0xbb, 0x70, 0x1f, 0xe6, 0x5b, 0x87, 0xb4, 0x43, 0xfd, 0xf5,
	0xf6, 0xf9, 0xad, 0xc0, 0x98, 0x17, 0x9f, 0x91, 0x15, 0x51, 0x55, 0x64, 0x6c, 0x18, 0x61, 0x0e,
	0xd9, 0x93, 0xab, 0xd6, 0x24, 0x2f, 0x6a, 0x3a, 0x22, 0xb1, 0x4f, 0xaa, 0x23, 0x48, 0xed, 0xb9,
	0x88, 0x8b, 0xa3, 0x6b, 0x26, 0x4c, 0xe8, 0x2d, 0x1c, 0x99, 0xbd, 0x5c, 0x58, 0x08, 0x50, 0xf2,
	0x2a, 0x62, 0xc1, 0x72, 0x66, 0x04, 0x10, 0x37, 0x6e, 0xfc, 0x44, 0xa9, 0xdf, 0xd4, 0x20, 0xdd,
	0xee, 0x41, 0xdb, 0x73, 0xde, 0x54, 0xec, 0xc9, 0xf3, 0x4b, 0x2e, 0xae, 0x5a, 0x4a, 0x5e, 0x47,
	0x07, 0x2b, 0x76, 0xa4, 0xe3, 0x28, 0xfe, 0xb0, 0xf0, 0x02, 0x06, 0xd1, 0xaf, 0x42, 0xc2, 0xa5,
	0xe0, 0x67, 0xbf, 0x16, 0x8e, 0x35, 0xce, 0x8a, 0xe5, 0x3d, 0x7b, 0x96, 0xd7, 0x79, 0x52, 0x1e,
	0xa1, 0xfb, 0x9b, 0xbe, 0x21, 0x9c, 0xe9, 0x56, 0x14, 0x7f, 0xa0, 0xe4, 0xc3, 0xc4, 0x46, 0xea,
	0xf7, 0xd2, 0x1d, 0x31, 0x0a, 0x5f, 0xeb, 0xa2, 0x68, 0x8d, 0xb5, 0xc5, 0x74, 0x0c, 0xdc, 0x82,
	0x80, 0x09, 0x19, 0x95, 0x71, 0x9a, 0x11, 0x57, 0x77, 0x4e, 0xc6, 0xff, 0x12, 0x03, 0xa7, 0xc7,
	0xf4, 0xc8, 0xb6, 0x7a, 0x59, 0x36, 0x3c, 0x53, 0xe2, 0x69, 0x8c, 0x25, 0x05, 0x45, 0x63, 0xf8,
	0x34, 0x89, 0x33, 0x3f, 0x85, 0x27, 0xbc, 0x65, 0xfa, 0xa8, 0x6d, 0x84, 0x5d, 0xba, 0x40, 0x32,
	0x30, 0xef, 0x83, 0x13, 0xa6, 0x78, 0xcc, 0x81, 0x9e, 0xda, 0xca, 0xd3, 0x7e, 0x9d, 0x6f, 0xcd,
	0xb7, 0xb3, 0xd8, 0xcf, 0x3b, 0x00, 0x92, 0xb8, 0x86, 0xac, 0x49, 0x7c, 0xf1, 0xd5, 0xcb, 0x7d,
};


static const uint8_t kof99_address_0_7_xor[256] =
{
	0x74, 0xad, 0x5d, 0x1d, 0x9e, 0xc3, 0xfa, 0x4e, 0xf7, 0xdb, 0xca, 0xa2, 0x64, 0x36, 0x56, 0x0c,
	0x4f, 0xcf, 0x43, 0x66, 0x1e, 0x91, 0xe3, 0xa5, 0x58, 0xc2, 0xc1, 0xd4, 0xb9, 0xdd, 0x76, 0x16,
	0xce, 0x61, 0x75, 0x01, 0x2b, 0x22, 0x38, 0x55, 0x50, 0xef, 0x6c, 0x99, 0x05, 0xe9, 0xe8, 0xe0,
	0x2d, 0xa4, 0x4b, 0x4a, 0x42, 0xae, 0xba, 0x8c, 0x6f, 0x93, 0x14, 0xbd, 0x71, 0x21, 0xb0, 0x02,
	0x15, 0xc4, 0xe6, 0x60, 0xd7, 0x44, 0xfd, 0x85, 0x7e, 0x78, 0x8f, 0x00, 0x81, 0xf1, 0xa7, 0x3b,
	0xa0, 0x10, 0xf4, 0x9f, 0x39, 0x88, 0x35, 0x62, 0xcb, 0x19, 0x31, 0x11, 0x51, 0xfb, 0x2a, 0x20,
	0x45, 0xd3, 0x7d, 0x92, 0x1b, 0xf2, 0x09, 0x0d, 0x97, 0xa9, 0xb5, 0x3c, 0xee, 0x5c, 0xaf, 0x7b,
	0xd2, 0x3a, 0x49, 0x8e, 0xb6, 0xcd, 0xd9, 0xde, 0x8a, 0x29, 0x6e, 0xd8, 0x0b, 0xe1, 0x69, 0x87,
	0x1a, 0x96, 0x18, 0xcc, 0xdf, 0xe7, 0xc5, 0xc7, 0xf8, 0x52, 0xc9, 0xf0, 0xb7, 0xe5, 0x33, 0xda,
	0x67, 0x9d, 0xa3, 0x03, 0x0e, 0x72, 0x26, 0x79, 0xe2, 0xb8, 0xfc, 0xaa, 0xfe, 0xb4, 0x86, 0xc8,
	0xd1, 0xbc, 0x12, 0x08, 0x77, 0xeb, 0x40, 0x8d, 0x04, 0x25, 0x4d, 0x5a, 0x6a, 0x7a, 0x2e, 0x41,
	0x65, 0x1c, 0x13, 0x94, 0xb2, 0x63, 0x28, 0x59, 0x5e, 0x9a, 0x30, 0x07, 0xc6, 0xbf, 0x17, 0xf5,
	0x0f, 0x89, 0xf3, 0x1f, 0xea, 0x6d, 0xb3, 0xc0, 0x70, 0x47, 0xf9, 0x53, 0xf6, 0xd6, 0x54, 0xed,
	0x6b, 0x4c, 0xe4, 0x8b, 0x83, 0x24, 0x90, 0xb1, 0x7c, 0xbb, 0x73, 0xab, 0xd5, 0x2f, 0x5f, 0xec,
	0x9c, 0x2c, 0xa8, 0x34, 0x46, 0x37, 0x27, 0xa1, 0x0a, 0x06, 0x80, 0x68, 0x82, 0x32, 0x84, 0xff,
	0x48, 0xac, 0x7f, 0x3f, 0x95, 0xdc, 0x98, 0x9b, 0xbe, 0x23, 0x57, 0x3e, 0x5b, 0xd0, 0x3d, 0xa6,
};


static const uint8_t kof2000_type0_t03[256] =
{
	0x10, 0x61, 0xf1, 0x78, 0x85, 0x52, 0x68, 0xe3, 0x12, 0x0d, 0xfa, 0xf0, 0xc9, 0x36, 0x5e, 0x3d,
	0xf9, 0xa6, 0x01, 0x2e, 0xc7, 0x84, 0xea, 0x2b, 0x6d, 0x14, 0x38, 0x4f, 0x55, 0x1c, 0x9d, 0xa7,
	0x7a, 0xc6, 0xf8, 0x9a, 0xe6, 0x42, 0xb5, 0xed, 0x7d, 0x3a, 0xb1, 0x05, 0x43, 0x4a, 0x22, 0xfd,
	0xac, 0xa4, 0x31, 0xc3, 0x32, 0x76, 0x95, 0x9e, 0x7e, 0x88, 0x8e, 0xa2, 0x97, 0x18, 0xbe, 0x2a,
	0xf5, 0xd6, 0xca, 0xcc, 0x72, 0x3b, 0x87, 0x6c, 0xde, 0x75, 0xd7, 0x21, 0xcb, 0x0b, 0xdd, 0xe7,
	0xe1, 0x65, 0xaa, 0xb9, 0x44, 0xfb, 0x66, 0x15, 0x1a, 0x3c, 0x98, 0xcf, 0x8a, 0xdf, 0x37, 0xa5,
	0x2f, 0x67, 0xd2, 0x83, 0xb6, 0x6b, 0xfc, 0xe0, 0xb4, 0x7c, 0x08, 0xdc, 0x93, 0x30, 0xab, 0xe4,
	0x19, 0xc2, 0x8b, 0xeb, 0xa0, 0x0a, 0xc8, 0x03, 0xc0, 0x4b, 0x64, 0x71, 0x86, 0x9c, 0x9b, 0x16,
	0x79, 0xff, 0x70, 0x09, 0x8c, 0xd0, 0xf6, 0x53, 0x07, 0x73, 0xd4, 0x89, 0xb3, 0x00, 0xe9, 0xfe,
	0xec, 0x8f, 0xbc, 0xb2, 0x1e, 0x5d, 0x11, 0x35, 0xa9, 0x06, 0x59, 0x9f, 0xc1, 0xd3, 0x7b, 0xf2,
	0xc5, 0x77, 0x4e, 0x39, 0x20, 0xd5, 0x6a, 0x82, 0xda, 0x45, 0xf3, 0x33, 0x81, 0x23, 0xba, 0xe2,
	0x1d, 0x5f, 0x5c, 0x51, 0x49, 0xae, 0x8d, 0xc4, 0xa8, 0xf7, 0x1f, 0x0f, 0x34, 0x28, 0xa1, 0xd9,
	0x27, 0xd8, 0x4c, 0x2c, 0xbf, 0x91, 0x3e, 0x69, 0x57, 0x41, 0x25, 0x0c, 0x5a, 0x90, 0x92, 0xb0,
	0x63, 0x6f, 0x40, 0xaf, 0x74, 0xb8, 0x2d, 0x80, 0xbb, 0x46, 0x94, 0xe5, 0x29, 0xee, 0xb7, 0x1b,
	0x96, 0xad, 0x13, 0x0e, 0x58, 0x99, 0x60, 0x4d, 0x17, 0x26, 0xce, 0xe8, 0xdb, 0xef, 0x24, 0xa3,
	0x6e, 0x7f, 0x54, 0x3f, 0x02, 0xd1, 0x5b, 0x50, 0x56, 0x48, 0xf4, 0xbd, 0x62, 0x47, 0x04, 0xcd,
};


static const uint8_t kof2000_type0_t12[256] =
{
	0xf4, 0x28, 0xb4, 0x8f, 0xfa, 0xeb, 0x8e, 0x54, 0x2b, 0x49, 0xd1, 0x76, 0x71, 0x47, 0x8b, 0x57,
	0x92, 0x85, 0x7c, 0xb8, 0x5c, 0x22, 0xf9, 0x26, 0xbc, 0x5b, 0x6d, 0x67, 0xae, 0x5f, 0x6f, 0xf5,
	0x9f, 0x48, 0x66, 0x40, 0x0d, 0x11, 0x4e, 0xb2, 0x6b, 0x35, 0x15, 0x0f, 0x18, 0x25, 0x1d, 0xba,
	0xd3, 0x69, 0x79, 0xec, 0xa8, 0x8c, 0xc9, 0x7f, 0x4b, 0xdb, 0x51, 0xaf, 0xca, 0xe2, 0xb3, 0x81,
	0x12, 0x5e, 0x7e, 0x38, 0xc8, 0x95, 0x01, 0xff, 0xfd, 0xfb, 0xf2, 0x74, 0x62, 0x14, 0xa5, 0x98,
	0xa6, 0xda, 0x80, 0x53, 0xe8, 0x56, 0xac, 0x1b, 0x52, 0xd0, 0xf1, 0x45, 0x42, 0xb6, 0x1a, 0x4a,
	0x3a, 0x99, 0xfc, 0xd2, 0x9c, 0xcf, 0x31, 0x2d, 0xdd, 0x86, 0x2f, 0x29, 0xe1, 0x03, 0x19, 0xa2,
	0x41, 0x33, 0x83, 0x90, 0xc1, 0xbf, 0x0b, 0x08, 0x3d, 0xd8, 0x8d, 0x6c, 0x39, 0xa0, 0xe3, 0x55,
	0x02, 0x50, 0x46, 0xe6, 0xc3, 0x82, 0x36, 0x13, 0x75, 0xab, 0x27, 0xd7, 0x1f, 0x0a, 0xd4, 0x89,
	0x59, 0x4f, 0xc0, 0x5d, 0xc6, 0xf7, 0x88, 0xbd, 0x3c, 0x00, 0xef, 0xcd, 0x05, 0x1c, 0xaa, 0x9b,
	0xed, 0x7a, 0x61, 0x17, 0x93, 0xfe, 0x23, 0xb9, 0xf3, 0x68, 0x78, 0xf6, 0x5a, 0x7b, 0xe0, 0xe4,
	0xa3, 0xee, 0x16, 0x72, 0xc7, 0x3b, 0x8a, 0x37, 0x2a, 0x70, 0xa9, 0x2c, 0x21, 0xf8, 0x24, 0x09,
	0xce, 0x20, 0x9e, 0x06, 0x87, 0xc5, 0x04, 0x64, 0x43, 0x7d, 0x4d, 0x10, 0xd6, 0xa4, 0x94, 0x4c,
	0x60, 0xde, 0xdf, 0x58, 0xb1, 0x44, 0x3f, 0xb0, 0xd9, 0xe5, 0xcb, 0xbb, 0xbe, 0xea, 0x07, 0x34,
	0x73, 0x6a, 0x77, 0xf0, 0x9d, 0x0c, 0x2e, 0x0e, 0x91, 0x9a, 0xcc, 0xc2, 0xb7, 0x63, 0x97, 0xd5,
	0xdc, 0xc4, 0x32, 0xe7, 0x84, 0x3e, 0x30, 0xa1, 0x1e, 0xb5, 0x6e, 0x65, 0xe9, 0xad, 0xa7, 0x96,
};


static const uint8_t kof2000_type1_t03[256] =
{
	0x9a, 0x2f, 0xcc, 0x4e, 0x40, 0x69, 0xac, 0xca, 0xa5, 0x7b, 0x0a, 0x61, 0x91, 0x0d, 0x55, 0x74,
	0xcd, 0x8b, 0x0b, 0x80, 0x09, 0x5e, 0x38, 0xc7, 0xda, 0xbf, 0xf5, 0x37, 0x23, 0x31, 0x33, 0xe9,
	0xae, 0x87, 0xe5, 0xfa, 0x6e, 0x5c, 0xad, 0xf4, 0x76, 0x62, 0x9f, 0x2e, 0x01, 0xe2, 0xf6, 0x47,
	0x8c, 0x7c, 0xaa, 0x98, 0xb5, 0x92, 0x51, 0xec, 0x5f, 0x07, 0x5d, 0x6f, 0x16, 0xa1, 0x1d, 0xa9,
	0x48, 0x45, 0xf0, 0x6a, 0x9c, 0x1e, 0x11, 0xa0, 0x06, 0x46, 0xd5, 0xf1, 0x73, 0xed, 0x94, 0xf7,
	0xc3, 0x57, 0x1b, 0xe0, 0x97, 0xb1, 0xa4, 0xa7, 0x24, 0xe7, 0x2b, 0x05, 0x5b, 0x34, 0x0c, 0xb8,
	0x0f, 0x9b, 0xc8, 0x4d, 0x5a, 0xa6, 0x86, 0x3e, 0x14, 0x29, 0x84, 0x58, 0x90, 0xdb, 0x2d, 0x54,
	0x9d, 0x82, 0xd4, 0x7d, 0xc6, 0x67, 0x41, 0x89, 0xc1, 0x13, 0xb0, 0x9e, 0x81, 0x6d, 0xa8, 0x59,
	0xbd, 0x39, 0x8e, 0xe6, 0x25, 0x8f, 0xd9, 0xa2, 0xe4, 0x53, 0xc5, 0x72, 0x7e, 0x36, 0x4a, 0x4f,
	0x52, 0xc2, 0x22, 0x2a, 0xce, 0x3c, 0x21, 0x2c, 0x00, 0xd7, 0x75, 0x8a, 0x27, 0xee, 0x43, 0xfe,
	0xcb, 0x6b, 0xb9, 0xa3, 0x78, 0xb7, 0x85, 0x02, 0x20, 0xd0, 0x83, 0xc4, 0x12, 0xf9, 0xfd, 0xd8,
	0x79, 0x64, 0x3a, 0x49, 0x03, 0xb4, 0xc0, 0xf2, 0xdf, 0x15, 0x93, 0x08, 0x35, 0xff, 0x70, 0xdd,
	0x28, 0x6c, 0x0e, 0x04, 0xde, 0x7a, 0x65, 0xd2, 0xab, 0x42, 0x95, 0xe1, 0x3f, 0x3b, 0x7f, 0x66,
	0xd1, 0x8d, 0xe3, 0xbb, 0x1c, 0xfc, 0x77, 0x1a, 0x88, 0x18, 0x19, 0x68, 0x1f, 0x56, 0xd6, 0xe8,
	0xb6, 0xbc, 0xd3, 0xea, 0x3d, 0x26, 0xb3, 0xc9, 0x44, 0xdc, 0xf3, 0x32, 0x30, 0xef, 0x96, 0x4c,
	0xaf, 0x17, 0xf8, 0xfb, 0x60, 0x50, 0xeb, 0x4b, 0x99, 0x63, 0xba, 0xb2, 0x71, 0xcf, 0x10, 0xbe,
};


static const uint8_t kof2000_type1_t12[256] =
{
	0xda, 0xa7, 0xd6, 0x6e, 0x2f, 0x5e, 0xf0, 0x3f, 0xa4, 0xce, 0xd3, 0xfd, 0x46, 0x2a, 0xac, 0xc9,
	0xbe, 0xeb, 0x9f, 0xd5, 0x3c, 0x61, 0x96, 0x11, 0xd0, 0x38, 0xca, 0x06, 0xed, 0x1b, 0x65, 0xe7,
	0x23, 0xdd, 0xd9, 0x05, 0xbf, 0x5b, 0x5d, 0xa5, 0x95, 0x00, 0xec, 0xf1, 0x01, 0xa9, 0xa6, 0xfc,
	0xbb, 0x54, 0xe3, 0x2e, 0x92, 0x58, 0x0a, 0x7b, 0xb6, 0xcc, 0xb1, 0x5f, 0x14, 0x35, 0x72, 0xff,
	0xe6, 0x52, 0xd7, 0x8c, 0xf3, 0x43, 0xaf, 0x9c, 0xc0, 0x4f, 0x0c, 0x42, 0x8e, 0xef, 0x80, 0xcd,
	0x1d, 0x7e, 0x88, 0x3b, 0x98, 0xa1, 0xad, 0xe4, 0x9d, 0x8d, 0x2b, 0x56, 0xb5, 0x50, 0xdf, 0x66,
	0x6d, 0xd4, 0x60, 0x09, 0xe1, 0xee, 0x4a, 0x47, 0xf9, 0xfe, 0x73, 0x07, 0x89, 0xa8, 0x39, 0xea,
	0x82, 0x9e, 0xcf, 0x26, 0xb2, 0x4e, 0xc3, 0x59, 0xf2, 0x3d, 0x9a, 0xb0, 0x69, 0xf7, 0xbc, 0x34,
	0xe5, 0x36, 0x22, 0xfb, 0x57, 0x71, 0x99, 0x6c, 0x83, 0x30, 0x55, 0xc2, 0xbd, 0xf4, 0x77, 0xe9,
	0x76, 0x97, 0xa0, 0xe0, 0xb9, 0x86, 0x6b, 0xa3, 0x84, 0x67, 0x1a, 0x70, 0x02, 0x5a, 0x41, 0x5c,
	0x25, 0x81, 0xaa, 0x28, 0x78, 0x4b, 0xc6, 0x64, 0x53, 0x16, 0x4d, 0x8b, 0x20, 0x93, 0xae, 0x0f,
	0x94, 0x2c, 0x3a, 0xc7, 0x62, 0xe8, 0xc4, 0xdb, 0x04, 0xc5, 0xfa, 0x29, 0x48, 0xd1, 0x08, 0x24,
	0x0d, 0xe2, 0xd8, 0x10, 0xb4, 0x91, 0x8a, 0x13, 0x0e, 0xdc, 0xd2, 0x79, 0xb8, 0xf8, 0xba, 0x2d,
	0xcb, 0xf5, 0x7d, 0x37, 0x51, 0x40, 0x31, 0xa2, 0x0b, 0x18, 0x63, 0x7f, 0xb3, 0xab, 0x9b, 0x87,
	0xf6, 0x90, 0xde, 0xc8, 0x27, 0x45, 0x7c, 0x1c, 0x85, 0x68, 0x33, 0x19, 0x03, 0x75, 0x15, 0x7a,
	0x1f, 0x49, 0x8f, 0x4c, 0xc1, 0x44, 0x17, 0x12, 0x6f, 0x32, 0xb7, 0x3e, 0x74, 0x1e, 0x21, 0x6a,
};


static const uint8_t kof2000_address_8_15_xor1[256] =
{
	0xfc, 0x9b, 0x1c, 0x35, 0x72, 0x53, 0xd6, 0x7d, 0x84, 0xa4, 0xc5, 0x93, 0x7b, 0xe7, 0x47, 0xd5,
	0x24, 0xa2, 0xfa, 0x19, 0x0c, 0xb1, 0x8c, 0xb9, 0x9d, 0xd8, 0x59, 0x4f, 0x3c, 0xb2, 0x78, 0x4a,
	0x2a, 0x96, 0x9a, 0xf1, 0x1f, 0x22, 0xa8, 0x5b, 0x67, 0xa3, 0x0f, 0x00, 0xfb, 0xdf, 0xeb, 0x0a,
	0x57, 0xb8, 0x25, 0xd7, 0xf0, 0x6b, 0x0b, 0x31, 0x95, 0x23, 0x2d, 0x5c, 0x27, 0xc7, 0xf4, 0x55,
	0x1a, 0xf7, 0x74, 0xbe, 0xd3, 0xac, 0x3d, 0xc1, 0x7f, 0xbd, 0x28, 0x01, 0x10, 0xe5, 0x09, 0x37,
	0x1e, 0x58, 0xaf, 0x17, 0xf2, 0x16, 0x30, 0x92, 0x36, 0x68, 0xe6, 0xd4, 0xea, 0xb7, 0x75, 0x54,
	0x77, 0x41, 0xb4, 0x8d, 0xe0, 0xf3, 0x51, 0x03, 0xa9, 0xe8, 0x66, 0xab, 0x29, 0xa5, 0xed, 0xcb,
	0xd1, 0xaa, 0xf5, 0xdb, 0x4c, 0x42, 0x97, 0x8a, 0xae, 0xc9, 0x6e, 0x04, 0x33, 0x85, 0xdd, 0x2b,
	0x6f, 0xef, 0x12, 0x21, 0x7a, 0xa1, 0x5a, 0x91, 0xc8, 0xcc, 0xc0, 0xa7, 0x60, 0x3e, 0x56, 0x2f,
	0xe4, 0x71, 0x99, 0xc2, 0xa0, 0x45, 0x80, 0x65, 0xbb, 0x87, 0x69, 0x81, 0x73, 0xca, 0xf6, 0x46,
	0x43, 0xda, 0x26, 0x7e, 0x8f, 0xe1, 0x8b, 0xfd, 0x50, 0x79, 0xba, 0xc6, 0x63, 0x4b, 0xb3, 0x8e,
	0x34, 0xe2, 0x48, 0x14, 0xcd, 0xe3, 0xc4, 0x05, 0x13, 0x40, 0x06, 0x6c, 0x88, 0xb0, 0xe9, 0x1b,
	0x4d, 0xf8, 0x76, 0x02, 0x44, 0x94, 0xcf, 0x32, 0xfe, 0xce, 0x3b, 0x5d, 0x2c, 0x89, 0x5f, 0xdc,
	0xd2, 0x9c, 0x6a, 0xec, 0x18, 0x6d, 0x0e, 0x86, 0xff, 0x5e, 0x9e, 0xee, 0x11, 0xd0, 0x49, 0x52,
	0x4e, 0x61, 0x90, 0x0d, 0xc3, 0x39, 0x15, 0x83, 0xb5, 0x62, 0x3f, 0x70, 0x7c, 0xad, 0x20, 0xbf,
	0x2e, 0x08, 0x1d, 0xf9, 0xb6, 0xa6, 0x64, 0x07, 0x82, 0x38, 0x98, 0x3a, 0x9f, 0xde, 0xbc, 0xd9,
};


static const uint8_t kof2000_address_8_15_xor2[256] =
{
	0x00, 0xbe, 0x06, 0x5a, 0xfa, 0x42, 0x15, 0xf2, 0x3f, 0x0a, 0x84, 0x93, 0x4e, 0x78, 0x3b, 0x89,
	0x32, 0x98, 0xa2, 0x87, 0x73, 0xdd, 0x26, 0xe5, 0x05, 0x71, 0x08, 0x6e, 0x9b, 0xe0, 0xdf, 0x9e,
	0xfc, 0x83, 0x81, 0xef, 0xb2, 0xc0, 0xc3, 0xbf, 0xa7, 0x6d, 0x1b, 0x95, 0xed, 0xb9, 0x3e, 0x13,
	0xb0, 0x47, 0x9c, 0x7a, 0x24, 0x41, 0x68, 0xd0, 0x36, 0x0b, 0xb5, 0xc2, 0x67, 0xf7, 0x54, 0x92,
	0x1e, 0x44, 0x86, 0x2b, 0x94, 0xcc, 0xba, 0x23, 0x0d, 0xca, 0x6b, 0x4c, 0x2a, 0x9a, 0x2d, 0x8b,
	0xe3, 0x52, 0x29, 0xf0, 0x21, 0xbd, 0xbb, 0x1f, 0xa3, 0xab, 0xf8, 0x46, 0xb7, 0x45, 0x82, 0x5e,
	0xdb, 0x07, 0x5d, 0xe9, 0x9d, 0x1a, 0x48, 0xce, 0x91, 0x12, 0xd4, 0xee, 0xa9, 0x39, 0xf1, 0x18,
	0x2c, 0x22, 0x8a, 0x7e, 0x34, 0x4a, 0x8c, 0xc1, 0x14, 0xf3, 0x20, 0x35, 0xd9, 0x96, 0x33, 0x77,
	0x9f, 0x76, 0x7c, 0x90, 0xc6, 0xd5, 0xa1, 0x5b, 0xac, 0x75, 0xc7, 0x0c, 0xb3, 0x17, 0xd6, 0x99,
	0x56, 0xa6, 0x3d, 0x1d, 0xb1, 0x2e, 0xd8, 0xbc, 0x2f, 0xde, 0x60, 0x55, 0x6c, 0x40, 0xcd, 0x43,
	0xff, 0xad, 0x38, 0x79, 0x51, 0xc8, 0x0e, 0x5f, 0xc4, 0x66, 0xcb, 0xa8, 0x7d, 0xa4, 0x3a, 0xea,
	0x27, 0x7b, 0x70, 0x8e, 0x5c, 0x19, 0x0f, 0x80, 0x6f, 0x8f, 0x10, 0xf9, 0x49, 0x85, 0x69, 0x7f,
	0xeb, 0x1c, 0x01, 0x65, 0x37, 0xa5, 0x28, 0xe4, 0x6a, 0x03, 0x04, 0xd1, 0x31, 0x11, 0x30, 0xfb,
	0x88, 0x97, 0xd3, 0xf6, 0xc5, 0x4d, 0xf5, 0x3c, 0xe8, 0x61, 0xdc, 0xd2, 0xb4, 0xb8, 0xa0, 0xae,
	0x16, 0x25, 0x02, 0x09, 0xfe, 0xcf, 0x53, 0x63, 0xaf, 0x59, 0xf4, 0xe1, 0xec, 0xd7, 0xe7, 0x50,
	0xe2, 0xc9, 0xaa, 0x4b, 0x8d, 0x4f, 0xe6, 0x64, 0xda, 0x74, 0xb6, 0x72, 0x57, 0x62, 0xfd, 0x58,
};


static const uint8_t kof2000_address_16_23_xor1[256] =
{
	0x45, 0x9f, 0x6e, 0x2f, 0x28, 0xbc, 0x5e, 0x6d, 0xda, 0xb5, 0x0d, 0xb8, 0xc0, 0x8e, 0xa2, 0x32,
	0xee, 0xcd, 0x8d, 0x48, 0x8c, 0x27, 0x14, 0xeb, 0x65, 0xd7, 0xf2, 0x93, 0x99, 0x90, 0x91, 0xfc,
	0x5f, 0xcb, 0xfa, 0x75, 0x3f, 0x26, 0xde, 0x72, 0x33, 0x39, 0xc7, 0x1f, 0x88, 0x79, 0x73, 0xab,
	0x4e, 0x36, 0x5d, 0x44, 0xd2, 0x41, 0xa0, 0x7e, 0xa7, 0x8b, 0xa6, 0xbf, 0x03, 0xd8, 0x86, 0xdc,
	0x2c, 0xaa, 0x70, 0x3d, 0x46, 0x07, 0x80, 0x58, 0x0b, 0x2b, 0xe2, 0xf0, 0xb1, 0xfe, 0x42, 0xf3,
	0xe9, 0xa3, 0x85, 0x78, 0xc3, 0xd0, 0x5a, 0xdb, 0x1a, 0xfb, 0x9d, 0x8a, 0xa5, 0x12, 0x0e, 0x54,
	0x8f, 0xc5, 0x6c, 0xae, 0x25, 0x5b, 0x4b, 0x17, 0x02, 0x9c, 0x4a, 0x24, 0x40, 0xe5, 0x9e, 0x22,
	0xc6, 0x49, 0x62, 0xb6, 0x6b, 0xbb, 0xa8, 0xcc, 0xe8, 0x81, 0x50, 0x47, 0xc8, 0xbe, 0x5c, 0xa4,
	0xd6, 0x94, 0x4f, 0x7b, 0x9a, 0xcf, 0xe4, 0x59, 0x7a, 0xa1, 0xea, 0x31, 0x37, 0x13, 0x2d, 0xaf,
	0x21, 0x69, 0x19, 0x1d, 0x6f, 0x16, 0x98, 0x1e, 0x08, 0xe3, 0xb2, 0x4d, 0x9b, 0x7f, 0xa9, 0x77,
	0xed, 0xbd, 0xd4, 0xd9, 0x34, 0xd3, 0xca, 0x09, 0x18, 0x60, 0xc9, 0x6a, 0x01, 0xf4, 0xf6, 0x64,
	0xb4, 0x3a, 0x15, 0xac, 0x89, 0x52, 0x68, 0x71, 0xe7, 0x82, 0xc1, 0x0c, 0x92, 0xf7, 0x30, 0xe6,
	0x1c, 0x3e, 0x0f, 0x0a, 0x67, 0x35, 0xba, 0x61, 0xdd, 0x29, 0xc2, 0xf8, 0x97, 0x95, 0xb7, 0x3b,
	0xe0, 0xce, 0xf9, 0xd5, 0x06, 0x76, 0xb3, 0x05, 0x4c, 0x04, 0x84, 0x3c, 0x87, 0x23, 0x63, 0x7c,
	0x53, 0x56, 0xe1, 0x7d, 0x96, 0x1b, 0xd1, 0xec, 0x2a, 0x66, 0xf1, 0x11, 0x10, 0xff, 0x43, 0x2e,
	0xdf, 0x83, 0x74, 0xf5, 0x38, 0x20, 0xfd, 0xad, 0xc4, 0xb9, 0x55, 0x51, 0xb0, 0xef, 0x00, 0x57,
};


static const uint8_t kof2000_address_16_23_xor2[256] =
{
	0x00, 0xb8, 0xf0, 0x34, 0xca, 0x21, 0x3c, 0xf9, 0x01, 0x8e, 0x75, 0x70, 0xec, 0x13, 0x27, 0x96,
	0xf4, 0x5b, 0x88, 0x1f, 0xeb, 0x4a, 0x7d, 0x9d, 0xbe, 0x02, 0x14, 0xaf, 0xa2, 0x06, 0xc6, 0xdb,
	0x35, 0x6b, 0x74, 0x45, 0x7b, 0x29, 0xd2, 0xfe, 0xb6, 0x15, 0xd0, 0x8a, 0xa9, 0x2d, 0x19, 0xf6,
	0x5e, 0x5a, 0x90, 0xe9, 0x11, 0x33, 0xc2, 0x47, 0x37, 0x4c, 0x4f, 0x59, 0xc3, 0x04, 0x57, 0x1d,
	0xf2, 0x63, 0x6d, 0x6e, 0x31, 0x95, 0xcb, 0x3e, 0x67, 0xb2, 0xe3, 0x98, 0xed, 0x8d, 0xe6, 0xfb,
	0xf8, 0xba, 0x5d, 0xd4, 0x2a, 0xf5, 0x3b, 0x82, 0x05, 0x16, 0x44, 0xef, 0x4d, 0xe7, 0x93, 0xda,
	0x9f, 0xbb, 0x61, 0xc9, 0x53, 0xbd, 0x76, 0x78, 0x52, 0x36, 0x0c, 0x66, 0xc1, 0x10, 0xdd, 0x7a,
	0x84, 0x69, 0xcd, 0xfd, 0x58, 0x0d, 0x6c, 0x89, 0x68, 0xad, 0x3a, 0xb0, 0x4b, 0x46, 0xc5, 0x03,
	0xb4, 0xf7, 0x30, 0x8c, 0x4e, 0x60, 0x73, 0xa1, 0x8b, 0xb1, 0x62, 0xcc, 0xd1, 0x08, 0xfc, 0x77,
	0x7e, 0xcf, 0x56, 0x51, 0x07, 0xa6, 0x80, 0x92, 0xdc, 0x0b, 0xa4, 0xc7, 0xe8, 0xe1, 0xb5, 0x71,
	0xea, 0xb3, 0x2f, 0x94, 0x18, 0xe2, 0x3d, 0x49, 0x65, 0xaa, 0xf1, 0x91, 0xc8, 0x99, 0x55, 0x79,
	0x86, 0xa7, 0x26, 0xa0, 0xac, 0x5f, 0xce, 0x6a, 0x5c, 0xf3, 0x87, 0x8f, 0x12, 0x1c, 0xd8, 0xe4,
	0x9b, 0x64, 0x2e, 0x1e, 0xd7, 0xc0, 0x17, 0xbc, 0xa3, 0xa8, 0x9a, 0x0e, 0x25, 0x40, 0x41, 0x50,
	0xb9, 0xbf, 0x28, 0xdf, 0x32, 0x54, 0x9e, 0x48, 0xd5, 0x2b, 0x42, 0xfa, 0x9c, 0x7f, 0xd3, 0x85,
	0x43, 0xde, 0x81, 0x0f, 0x24, 0xc4, 0x38, 0xae, 0x83, 0x1b, 0x6f, 0x7c, 0xe5, 0xff, 0x1a, 0xd9,
	0x3f, 0xb7, 0x22, 0x97, 0x09, 0xe0, 0xa5, 0x20, 0x23, 0x2c, 0x72, 0xd6, 0x39, 0xab, 0x0a, 0xee,
};


static const uint8_t kof2000_address_0_7_xor[256] =
{
	0x26, 0x48, 0x06, 0x9b, 0x21, 0xa9, 0x1b, 0x76, 0xc9, 0xf8, 0xb4, 0x67, 0xe4, 0xff, 0x99, 0xf7,
	0x15, 0x9e, 0x62, 0x00, 0x72, 0x4d, 0xa0, 0x4f, 0x02, 0xf1, 0xea, 0xef, 0x0b, 0xf3, 0xeb, 0xa6,
	0x93, 0x78, 0x6f, 0x7c, 0xda, 0xd4, 0x7b, 0x05, 0xe9, 0xc6, 0xd6, 0xdb, 0x50, 0xce, 0xd2, 0x01,
	0xb5, 0xe8, 0xe0, 0x2a, 0x08, 0x1a, 0xb8, 0xe3, 0xf9, 0xb1, 0xf4, 0x8b, 0x39, 0x2d, 0x85, 0x9c,
	0x55, 0x73, 0x63, 0x40, 0x38, 0x96, 0xdc, 0xa3, 0xa2, 0xa1, 0x25, 0x66, 0x6d, 0x56, 0x8e, 0x10,
	0x0f, 0x31, 0x1c, 0xf5, 0x28, 0x77, 0x0a, 0xd1, 0x75, 0x34, 0xa4, 0xfe, 0x7d, 0x07, 0x51, 0x79,
	0x41, 0x90, 0x22, 0x35, 0x12, 0xbb, 0xc4, 0xca, 0xb2, 0x1f, 0xcb, 0xc8, 0xac, 0xdd, 0xd0, 0x0d,
	0xfc, 0xc5, 0x9d, 0x14, 0xbc, 0x83, 0xd9, 0x58, 0xc2, 0x30, 0x9a, 0x6a, 0xc0, 0x0c, 0xad, 0xf6,
	0x5d, 0x74, 0x7f, 0x2f, 0xbd, 0x1d, 0x47, 0xd5, 0xe6, 0x89, 0xcf, 0xb7, 0xd3, 0x59, 0x36, 0x98,
	0xf0, 0xfb, 0x3c, 0xf2, 0x3f, 0xa7, 0x18, 0x82, 0x42, 0x5c, 0xab, 0xba, 0xde, 0x52, 0x09, 0x91,
	0xaa, 0x61, 0xec, 0xd7, 0x95, 0x23, 0xcd, 0x80, 0xa5, 0x68, 0x60, 0x27, 0x71, 0xe1, 0x2c, 0x2e,
	0x8d, 0x2b, 0x57, 0x65, 0xbf, 0xc1, 0x19, 0xc7, 0x49, 0x64, 0x88, 0x4a, 0xcc, 0x20, 0x4e, 0xd8,
	0x3b, 0x4c, 0x13, 0x5f, 0x9f, 0xbe, 0x5e, 0x6e, 0xfd, 0xe2, 0xfa, 0x54, 0x37, 0x0e, 0x16, 0x7a,
	0x6c, 0x33, 0xb3, 0x70, 0x84, 0x7e, 0xc3, 0x04, 0xb0, 0xae, 0xb9, 0x81, 0x03, 0x29, 0xdf, 0x46,
	0xe5, 0x69, 0xe7, 0x24, 0x92, 0x5a, 0x4b, 0x5b, 0x94, 0x11, 0x3a, 0x3d, 0x87, 0xed, 0x97, 0xb6,
	0x32, 0x3e, 0x45, 0xaf, 0x1e, 0x43, 0x44, 0x8c, 0x53, 0x86, 0x6b, 0xee, 0xa8, 0x8a, 0x8f, 0x17,
};



void cmc_prot_device::decrypt(uint8_t *r0, uint8_t *r1,
					uint8_t c0,  uint8_t c1,
					const uint8_t *table0hi,
					const uint8_t *table0lo,
					const uint8_t *table1,
					int base,
					int invert)
{
	uint8_t tmp, xor0, xor1;

	tmp = table1[(base & 0xff) ^ address_0_7_xor[(base >> 8) & 0xff]];
	xor0 = (table0hi[(base >> 8) & 0xff] & 0xfe) | (tmp & 0x01);
	xor1 = (tmp & 0xfe) | (table0lo[(base >> 8) & 0xff] & 0x01);

	if (invert)
	{
		*r0 = c1 ^ xor0;
		*r1 = c0 ^ xor1;
	}
	else
	{
		*r0 = c0 ^ xor0;
		*r1 = c1 ^ xor1;
	}
}


void cmc_prot_device::gfx_decrypt(uint8_t* rom, uint32_t rom_size, int extra_xor)
{
	int rpos;
	std::vector<uint8_t> buf(rom_size);

	// Data xor
	for (rpos = 0; rpos < rom_size/4; rpos++)
	{
		decrypt(&buf[4*rpos+0], &buf[4*rpos+3], rom[4*rpos+0], rom[4*rpos+3], type0_t03, type0_t12, type1_t03, rpos, (rpos>>8) & 1);
		decrypt(&buf[4*rpos+1], &buf[4*rpos+2], rom[4*rpos+1], rom[4*rpos+2], type0_t12, type0_t03, type1_t12, rpos, ((rpos>>16) ^ address_16_23_xor2[(rpos>>8) & 0xff]) & 1);
	}

	// Address xor
	for (rpos = 0; rpos < rom_size/4; rpos++)
	{
		int baser;

		baser = rpos;

		baser ^= extra_xor;

		baser ^= address_8_15_xor1[(baser >> 16) & 0xff] << 8;
		baser ^= address_8_15_xor2[baser & 0xff] << 8;
		baser ^= address_16_23_xor1[baser & 0xff] << 16;
		baser ^= address_16_23_xor2[(baser >> 8) & 0xff] << 16;
		baser ^= address_0_7_xor[(baser >> 8) & 0xff];


		if (rom_size == 0x3000000) /* special handling for preisle2 */
		{
			if (rpos < 0x2000000/4)
				baser &= (0x2000000/4)-1;
			else
				baser = 0x2000000/4 + (baser & ((0x1000000/4)-1));
		}
		else if (rom_size == 0x6000000) /* special handling for kf2k3pcb */
		{
			if (rpos < 0x4000000/4)
				baser &= (0x4000000/4)-1;
			else
				baser = 0x4000000/4 + (baser & ((0x1000000/4)-1));
		}
		else /* Clamp to the real rom size */
			baser &= (rom_size/4)-1;

		rom[4*rpos+0] = buf[4*baser+0];
		rom[4*rpos+1] = buf[4*baser+1];
		rom[4*rpos+2] = buf[4*baser+2];
		rom[4*rpos+3] = buf[4*baser+3];
	}
}


/* CMC42 protection chip */
void cmc_prot_device::cmc42_gfx_decrypt(uint8_t* rom, uint32_t rom_size, int extra_xor)
{
	type0_t03 =          kof99_type0_t03;
	type0_t12 =          kof99_type0_t12;
	type1_t03 =          kof99_type1_t03;
	type1_t12 =          kof99_type1_t12;
	address_8_15_xor1 =  kof99_address_8_15_xor1;
	address_8_15_xor2 =  kof99_address_8_15_xor2;
	address_16_23_xor1 = kof99_address_16_23_xor1;
	address_16_23_xor2 = kof99_address_16_23_xor2;
	address_0_7_xor =    kof99_address_0_7_xor;
	gfx_decrypt(rom, rom_size, extra_xor);
}

// REMOVE ME!!!!
void cmc_prot_device::kof99_neogeo_gfx_decrypt(uint8_t* rom, uint32_t rom_size, uint8_t* fixed, uint32_t fixed_size, int extra_xor)
{
	cmc42_gfx_decrypt(rom, rom_size, extra_xor);
	sfix_decrypt(rom, rom_size, fixed, fixed_size);
}


/* CMC50 protection chip */
void cmc_prot_device::cmc50_gfx_decrypt(uint8_t* rom, uint32_t rom_size, int extra_xor)
{
	type0_t03 =          kof2000_type0_t03;
	type0_t12 =          kof2000_type0_t12;
	type1_t03 =          kof2000_type1_t03;
	type1_t12 =          kof2000_type1_t12;
	address_8_15_xor1 =  kof2000_address_8_15_xor1;
	address_8_15_xor2 =  kof2000_address_8_15_xor2;
	address_16_23_xor1 = kof2000_address_16_23_xor1;
	address_16_23_xor2 = kof2000_address_16_23_xor2;
	address_0_7_xor =    kof2000_address_0_7_xor;
	gfx_decrypt(rom, rom_size, extra_xor);
}



// REMOVE ME!!!!
void cmc_prot_device::kof2000_neogeo_gfx_decrypt(uint8_t* rom, uint32_t rom_size, uint8_t* fixed, uint32_t fixed_size, int extra_xor)
{
	cmc50_gfx_decrypt(rom, rom_size, extra_xor);
	sfix_decrypt(rom, rom_size, fixed, fixed_size);
}



/* the S data comes from the end of the C data */
void cmc_prot_device::sfix_decrypt(uint8_t* rom, uint32_t rom_size, uint8_t* fixed, uint32_t fixed_size)
{
	int tx_size = fixed_size;
	uint8_t *src = rom + rom_size - tx_size;
	uint8_t *dst = fixed;

	for (int i = 0; i < tx_size; i++)
		dst[i] = src[(i & ~0x1f) + ((i & 7) << 2) + ((~i & 8) >> 2) + ((i & 0x10) >> 4)];
}


/***************************************************************************

NeoGeo 'M' ROM encryption
  CMC50 protection chip

***************************************************************************/


static const uint8_t m1_address_8_15_xor[256] =
{
		0x0a, 0x72, 0xb7, 0xaf, 0x67, 0xde, 0x1d, 0xb1, 0x78, 0xc4, 0x4f, 0xb5, 0x4b, 0x18, 0x76, 0xdd,
		0x11, 0xe2, 0x36, 0xa1, 0x82, 0x03, 0x98, 0xa0, 0x10, 0x5f, 0x3f, 0xd6, 0x1f, 0x90, 0x6a, 0x0b,
		0x70, 0xe0, 0x64, 0xcb, 0x9f, 0x38, 0x8b, 0x53, 0x04, 0xca, 0xf8, 0xd0, 0x07, 0x68, 0x56, 0x32,
		0xae, 0x1c, 0x2e, 0x48, 0x63, 0x92, 0x9a, 0x9c, 0x44, 0x85, 0x41, 0x40, 0x09, 0xc0, 0xc8, 0xbf,
		0xea, 0xbb, 0xf7, 0x2d, 0x99, 0x21, 0xf6, 0xba, 0x15, 0xce, 0xab, 0xb0, 0x2a, 0x60, 0xbc, 0xf1,
		0xf0, 0x9e, 0xd5, 0x97, 0xd8, 0x4e, 0x14, 0x9d, 0x42, 0x4d, 0x2c, 0x5c, 0x2b, 0xa6, 0xe1, 0xa7,
		0xef, 0x25, 0x33, 0x7a, 0xeb, 0xe7, 0x1b, 0x6d, 0x4c, 0x52, 0x26, 0x62, 0xb6, 0x35, 0xbe, 0x80,
		0x01, 0xbd, 0xfd, 0x37, 0xf9, 0x47, 0x55, 0x71, 0xb4, 0xf2, 0xff, 0x27, 0xfa, 0x23, 0xc9, 0x83,
		0x17, 0x39, 0x13, 0x0d, 0xc7, 0x86, 0x16, 0xec, 0x49, 0x6f, 0xfe, 0x34, 0x05, 0x8f, 0x00, 0xe6,
		0xa4, 0xda, 0x7b, 0xc1, 0xf3, 0xf4, 0xd9, 0x75, 0x28, 0x66, 0x87, 0xa8, 0x45, 0x6c, 0x20, 0xe9,
		0x77, 0x93, 0x7e, 0x3c, 0x1e, 0x74, 0xf5, 0x8c, 0x3e, 0x94, 0xd4, 0xc2, 0x5a, 0x06, 0x0e, 0xe8,
		0x3d, 0xa9, 0xb2, 0xe3, 0xe4, 0x22, 0xcf, 0x24, 0x8e, 0x6b, 0x8a, 0x8d, 0x84, 0x4a, 0xd2, 0x91,
		0x88, 0x79, 0x57, 0xa5, 0x0f, 0xcd, 0xb9, 0xac, 0x3b, 0xaa, 0xb3, 0xd1, 0xee, 0x31, 0x81, 0x7c,
		0xd7, 0x89, 0xd3, 0x96, 0x43, 0xc5, 0xc6, 0xc3, 0x69, 0x7f, 0x46, 0xdf, 0x30, 0x5b, 0x6e, 0xe5,
		0x08, 0x95, 0x9b, 0xfb, 0xb8, 0x58, 0x0c, 0x61, 0x50, 0x5d, 0x3a, 0xa2, 0x29, 0x12, 0xfc, 0x51,
		0x7d, 0x1a, 0x02, 0x65, 0x54, 0x5e, 0x19, 0xcc, 0xdc, 0xdb, 0x73, 0xed, 0xad, 0x59, 0x2f, 0xa3,
};

static const uint8_t m1_address_0_7_xor[256] =
{
		0xf4, 0xbc, 0x02, 0xf7, 0x2c, 0x3d, 0xe8, 0xd9, 0x50, 0x62, 0xec, 0xbd, 0x53, 0x73, 0x79, 0x61,
		0x00, 0x34, 0xcf, 0xa2, 0x63, 0x28, 0x90, 0xaf, 0x44, 0x3b, 0xc5, 0x8d, 0x3a, 0x46, 0x07, 0x70,
		0x66, 0xbe, 0xd8, 0x8b, 0xe9, 0xa0, 0x4b, 0x98, 0xdc, 0xdf, 0xe2, 0x16, 0x74, 0xf1, 0x37, 0xf5,
		0xb7, 0x21, 0x81, 0x01, 0x1c, 0x1b, 0x94, 0x36, 0x09, 0xa1, 0x4a, 0x91, 0x30, 0x92, 0x9b, 0x9a,
		0x29, 0xb1, 0x38, 0x4d, 0x55, 0xf2, 0x56, 0x18, 0x24, 0x47, 0x9d, 0x3f, 0x80, 0x1f, 0x22, 0xa4,
		0x11, 0x54, 0x84, 0x0d, 0x25, 0x48, 0xee, 0xc6, 0x59, 0x15, 0x03, 0x7a, 0xfd, 0x6c, 0xc3, 0x33,
		0x5b, 0xc4, 0x7b, 0x5a, 0x05, 0x7f, 0xa6, 0x40, 0xa9, 0x5d, 0x41, 0x8a, 0x96, 0x52, 0xd3, 0xf0,
		0xab, 0x72, 0x10, 0x88, 0x6f, 0x95, 0x7c, 0xa8, 0xcd, 0x9c, 0x5f, 0x32, 0xae, 0x85, 0x39, 0xac,
		0xe5, 0xd7, 0xfb, 0xd4, 0x08, 0x23, 0x19, 0x65, 0x6b, 0xa7, 0x93, 0xbb, 0x2b, 0xbf, 0xb8, 0x35,
		0xd0, 0x06, 0x26, 0x68, 0x3e, 0xdd, 0xb9, 0x69, 0x2a, 0xb2, 0xde, 0x87, 0x45, 0x58, 0xff, 0x3c,
		0x9e, 0x7d, 0xda, 0xed, 0x49, 0x8c, 0x14, 0x8e, 0x75, 0x2f, 0xe0, 0x6e, 0x78, 0x6d, 0x20, 0xd2,
		0xfa, 0x2d, 0x51, 0xcc, 0xc7, 0xe7, 0x1d, 0x27, 0x97, 0xfc, 0x31, 0xdb, 0xf8, 0x42, 0xe3, 0x99,
		0x5e, 0x83, 0x0e, 0xb4, 0x2e, 0xf6, 0xc0, 0x0c, 0x4c, 0x57, 0xb6, 0x64, 0x0a, 0x17, 0xa3, 0xc1,
		0x77, 0x12, 0xfe, 0xe6, 0x8f, 0x13, 0x71, 0xe4, 0xf9, 0xad, 0x9f, 0xce, 0xd5, 0x89, 0x7e, 0x0f,
		0xc2, 0x86, 0xf3, 0x67, 0xba, 0x60, 0x43, 0xc9, 0x04, 0xb3, 0xb0, 0x1e, 0xb5, 0xc8, 0xeb, 0xa5,
		0x76, 0xea, 0x5c, 0x82, 0x1a, 0x4f, 0xaa, 0xca, 0xe1, 0x0b, 0x4e, 0xcb, 0x6a, 0xef, 0xd1, 0xd6,
};


int cmc_prot_device::m1_address_scramble(int address, uint16_t key)
{
	const int p1[8][16] = {
		{15,14,10,7,1,2,3,8,0,12,11,13,6,9,5,4},
		{7,1,8,11,15,9,2,3,5,13,4,14,10,0,6,12},
		{8,6,14,3,10,7,15,1,4,0,2,5,13,11,12,9},
		{2,8,15,9,3,4,11,7,13,6,0,10,1,12,14,5},
		{1,13,6,15,14,3,8,10,9,4,7,12,5,2,0,11},
		{11,15,3,4,7,0,9,2,6,14,12,1,8,5,10,13},
		{10,5,13,8,6,15,1,14,11,9,3,0,12,7,4,2},
		{9,3,7,0,2,12,4,11,14,10,5,8,15,13,1,6},
	};

	int block = (address >> 16) & 7;
	int aux = address & 0xffff;

	aux ^= bitswap<16>(key,12,0,2,4,8,15,7,13,10,1,3,6,11,9,14,5);
	aux = bitswap<16>(aux,
		p1[block][15], p1[block][14], p1[block][13], p1[block][12],
		p1[block][11], p1[block][10], p1[block][9], p1[block][8],
		p1[block][7], p1[block][6], p1[block][5], p1[block][4],
		p1[block][3], p1[block][2], p1[block][1], p1[block][0]);
	aux ^= m1_address_0_7_xor[(aux >> 8) & 0xff];
	aux ^= m1_address_8_15_xor[aux & 0xff] << 8;
	aux = bitswap<16>(aux, 7,15,14,6,5,13,12,4,11,3,10,2,9,1,8,0);

	return (block << 16) | aux;
}


void cmc_prot_device::cmc50_m1_decrypt(uint8_t* romcrypt, uint32_t romcrypt_size, uint8_t* romaudio, uint32_t romaudio_size)
{
	uint8_t* rom = romcrypt;
	size_t rom_size = 0x80000;
	uint8_t* rom2 = romaudio;

	std::vector<uint8_t> buffer(rom_size);

	/* The CMC50 hardware does a checksum of the first 64kb of the M1 rom, and
	   uses this checksum as the basis of the key with which to decrypt the rom */
	uint16_t key = util::sum16_creator::simple(rom, 0x10000);

	//printf("key %04x\n",key);

	for (uint32_t i = 0; i < rom_size; i++)
		buffer[i] = rom[m1_address_scramble(i,key)];

	memcpy(rom, &buffer[0], rom_size);

	memcpy(rom2,rom, 0x10000);
	memcpy(rom2 + 0x10000, rom, 0x80000);

	if (0)
	{
		auto filename = std::string(machine().system().name) + "_m1.dump";
		auto fp = fopen(filename.c_str(), "w+b");
		if (fp)
		{
			fwrite(rom, rom_size, 1, fp);
			fclose(fp);
		}
	}

	if (0)
	{
		auto filename = std::string(machine().system().name) + "_m1extra.dump";
		auto fp = fopen(filename.c_str(), "w+b");
		if (fp)
		{
			fwrite(&rom[0xf800], 0x800, 1, fp);
			fclose(fp);
		}
	}
}