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path: root/src/mame/machine/pgmprot_igs025_igs028.cpp
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// license:BSD-3-Clause
// copyright-holders:David Haywood, ElSemi
/***********************************************************************
 IGS28 + IGS025 PGM protection emulation

 these are simulations of the IGS 028 and 025 protection combination
 used on the following PGM games

 Oriental Legend Super

 ----

 IGS28 is some kind of encrypted DMA device, works with data in an
 external ROM, more advaned version of IGS022?

 IGS025 is some kind of state machine, bitswaps etc.

 Simulation is incomplete
 - DMA Mode 0 decryption unknown

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

#include "emu.h"
#include "includes/pgm.h"
#include "machine/pgmprot_igs025_igs028.h"

// tables are xored by table at $1998dc
// tables are the same as drgw3 and drgw2
static const u8 m_olds_source_data[8][0xec] = // table addresses $2951CA
{
	{ // region 0, unused...
		0,
	},
	{ // region 1, $1A669A
		0x67, 0x51, 0xf3, 0x19, 0xa0, 0x11, 0xe1, 0x11, 0x10, 0xee, 0xe3, 0xf6, 0xbe, 0x81, 0x35, 0xe3,
		0xfb, 0xe6, 0xef, 0xdf, 0x61, 0x01, 0xfa, 0x22, 0x5d, 0x43, 0x01, 0xa5, 0x3b, 0x17, 0xd4, 0x74,
		0xf0, 0xf4, 0xf3, 0x43, 0xb5, 0x19, 0x04, 0xd5, 0x84, 0xce, 0x87, 0xfe, 0x35, 0x3e, 0xc4, 0x3c,
		0xc7, 0x85, 0x2a, 0x33, 0x00, 0x86, 0xd0, 0x4d, 0x65, 0x4b, 0xf9, 0xe9, 0xc0, 0xba, 0xaa, 0x77,
		0x9e, 0x66, 0xf6, 0x0f, 0x4f, 0x3a, 0xb6, 0xf1, 0x64, 0x9a, 0xe9, 0x25, 0x1a, 0x5f, 0x22, 0xa3,
		0xa2, 0xbf, 0x4b, 0x77, 0x3f, 0x34, 0xc9, 0x6e, 0xdb, 0x12, 0x5c, 0x33, 0xa5, 0x8b, 0x6c, 0xb1,
		0x74, 0xc8, 0x40, 0x4e, 0x2f, 0xe7, 0x46, 0xae, 0x99, 0xfc, 0xb0, 0x55, 0x54, 0xdf, 0xa7, 0xa1,
		0x0f, 0x5e, 0x49, 0xcf, 0x56, 0x3c, 0x90, 0x2b, 0xac, 0x65, 0x6e, 0xdb, 0x58, 0x3e, 0xc9, 0x00,
		0xae, 0x53, 0x4d, 0x92, 0xfa, 0x40, 0xb2, 0x6b, 0x65, 0x4b, 0x90, 0x8a, 0x0c, 0xe2, 0xa5, 0x9a,
		0xd0, 0x20, 0x29, 0x55, 0xa4, 0x44, 0xac, 0x51, 0x87, 0x54, 0x53, 0x34, 0x24, 0x4b, 0x81, 0x67,
		0x34, 0x4c, 0x5f, 0x31, 0x4e, 0xf2, 0xf1, 0x19, 0x18, 0x1c, 0x34, 0x38, 0xe1, 0x81, 0x17, 0xcf,
		0x24, 0xb9, 0x9a, 0xcb, 0x34, 0x51, 0x50, 0x59, 0x44, 0xb1, 0x0b, 0x50, 0x95, 0x6c, 0x48, 0x7e,
		0x14, 0xa4, 0xc6, 0xd9, 0xd3, 0xa5, 0xd6, 0xd0, 0xc5, 0x97, 0xf0, 0x45, 0xd0, 0x98, 0x51, 0x91,
		0x9f, 0xa3, 0x43, 0x51, 0x05, 0x90, 0xee, 0xca, 0x7e, 0x5f, 0x72, 0x53, 0xb1, 0xd3, 0xaf, 0x36,
		0x08, 0x75, 0xb0, 0x9b, 0xe0, 0x0d, 0x43, 0x88, 0xaa, 0x27, 0x44, 0x11
	},
	{ // region 2, $19A5F8
		0xf9, 0x19, 0xf3, 0x09, 0xa0, 0x11, 0xe0, 0x11, 0x10, 0x22, 0xfd, 0x8e, 0xd3, 0xc8, 0x31, 0x67,
		0xc0, 0x10, 0x3c, 0xc2, 0x03, 0xf2, 0x6a, 0x0a, 0x54, 0x49, 0xca, 0xb5, 0x4b, 0xe0, 0x94, 0xe8,
		0x8d, 0xc8, 0x90, 0xee, 0x6b, 0x6f, 0xfa, 0x09, 0x76, 0x84, 0x6f, 0x55, 0xd1, 0x94, 0xca, 0x9c,
		0xe1, 0x22, 0xc6, 0x02, 0xb5, 0x8c, 0xf9, 0x3a, 0x52, 0x10, 0xf0, 0x22, 0xe4, 0x11, 0x15, 0x73,
		0x5e, 0x9e, 0xde, 0xc4, 0x5a, 0xbd, 0xa3, 0x89, 0xe7, 0x9b, 0x95, 0x5d, 0x75, 0xf6, 0xc3, 0x9f,
		0xe4, 0xcf, 0x65, 0x73, 0x90, 0xd0, 0x75, 0x56, 0xfa, 0xcc, 0xe4, 0x3e, 0x9c, 0x41, 0x81, 0x62,
		0xb1, 0xd3, 0x28, 0xbd, 0x6c, 0xed, 0x60, 0x28, 0x27, 0xee, 0xf2, 0xa1, 0xb4, 0x2c, 0x6c, 0xbb,
		0x42, 0xd7, 0x1d, 0x62, 0xc0, 0x33, 0x7d, 0xf9, 0xe4, 0x5c, 0xe2, 0x41, 0xa4, 0x1c, 0x98, 0xa1,
		0x87, 0x95, 0xad, 0x61, 0x56, 0x96, 0x40, 0x08, 0x6b, 0xe2, 0x4b, 0x95, 0x7b, 0x1b, 0xd8, 0x64,
		0xb3, 0xee, 0x9d, 0x79, 0x69, 0xea, 0x5d, 0xcf, 0x01, 0x91, 0xea, 0x3f, 0x70, 0x29, 0xdc, 0xe0,
		0x08, 0x20, 0xbf, 0x46, 0x90, 0xa8, 0xfc, 0x29, 0x14, 0xd1, 0x0d, 0x20, 0x79, 0xd2, 0x2c, 0xe9,
		0x52, 0xa6, 0x8c, 0xbd, 0xa3, 0x3e, 0x88, 0x2d, 0xb8, 0x4e, 0xf2, 0x74, 0x50, 0xcc, 0x12, 0xde,
		0xd3, 0x5a, 0xa4, 0x7b, 0xa2, 0x8d, 0x91, 0x68, 0x12, 0x0c, 0x9c, 0xb9, 0x6d, 0x26, 0x66, 0x60,
		0xc3, 0x6d, 0xd0, 0x11, 0x33, 0x05, 0x1d, 0xa8, 0xb6, 0x51, 0xe6, 0xe0, 0x58, 0x61, 0x74, 0x37,
		0xcc, 0x3a, 0x4d, 0x6a, 0x0a, 0x09, 0x71, 0xe3, 0x7e, 0xa5, 0x3b, 0xe9
	},
	{ // region 3, $1F9508
		0x73, 0x59, 0xf3, 0x09, 0xa0, 0x11, 0xe1, 0x11, 0x10, 0x55, 0x18, 0x0d, 0xe8, 0x29, 0x2d, 0x04,
		0x85, 0x39, 0x88, 0xbe, 0x8b, 0xcb, 0xd9, 0x0b, 0x32, 0x36, 0x94, 0xac, 0x74, 0xc3, 0x3b, 0x5d,
		0x2a, 0x83, 0x46, 0xb3, 0x3a, 0xac, 0xd8, 0x55, 0x68, 0x21, 0x57, 0xab, 0x6e, 0xd1, 0xd0, 0xfc,
		0xe2, 0xbe, 0x63, 0xd0, 0x6b, 0x79, 0x23, 0x40, 0x58, 0xd4, 0xe7, 0x73, 0x22, 0x67, 0x7f, 0x88,
		0x05, 0xbd, 0xdf, 0x7a, 0x65, 0x41, 0x90, 0x3a, 0x52, 0x83, 0x28, 0xae, 0xe9, 0x8e, 0x65, 0x82,
		0x0e, 0xdf, 0x98, 0x88, 0xe1, 0x86, 0x21, 0x3e, 0x1a, 0x87, 0x6d, 0x62, 0x7a, 0xf6, 0xaf, 0x2c,
		0xd5, 0xc5, 0x10, 0x2d, 0xa9, 0xda, 0x93, 0xa1, 0x9b, 0xc7, 0x35, 0xd4, 0x15, 0x78, 0x18, 0xd5,
		0x75, 0x6a, 0xd7, 0xdb, 0x12, 0x2a, 0x6a, 0xc8, 0x36, 0x53, 0x57, 0xa6, 0xf0, 0x13, 0x67, 0x43,
		0x79, 0xf0, 0x0e, 0x49, 0xb1, 0xec, 0xcd, 0xa4, 0x8a, 0x61, 0x06, 0xb9, 0xea, 0x53, 0xf2, 0x47,
		0x7d, 0xd6, 0xf8, 0x9d, 0x2e, 0xaa, 0x27, 0x35, 0x61, 0xce, 0x9b, 0x63, 0xbc, 0x07, 0x51, 0x5a,
		0xc2, 0x0d, 0x39, 0x42, 0xd2, 0x5e, 0x21, 0x20, 0x10, 0xa0, 0xe5, 0x08, 0xf7, 0x3d, 0x28, 0x04,
		0x99, 0x93, 0x97, 0xaf, 0xf9, 0x12, 0xc0, 0x01, 0x2d, 0xea, 0xf3, 0x98, 0x0b, 0x46, 0xc2, 0x26,
		0x93, 0x10, 0x69, 0x1d, 0x71, 0x8e, 0x33, 0x00, 0x5e, 0x80, 0x2f, 0x47, 0x0a, 0xcc, 0x94, 0x16,
		0xe7, 0x37, 0x45, 0xd0, 0x61, 0x79, 0x32, 0x86, 0x08, 0x2a, 0x5b, 0x55, 0xfe, 0xee, 0x52, 0x38,
		0xaa, 0x18, 0xe9, 0x39, 0x1a, 0x1e, 0xb8, 0x26, 0x6b, 0x3d, 0x4b, 0xa9
	},
	{ // region 4, $1CA7B8
		0x06, 0x01, 0xf3, 0x39, 0xa0, 0x11, 0xf0, 0x11, 0x10, 0x6f, 0x32, 0x8b, 0xfd, 0x89, 0x29, 0xa0,
		0x4a, 0x62, 0xed, 0xa1, 0x2d, 0xa4, 0x49, 0xf2, 0x10, 0x3c, 0x77, 0xa3, 0x84, 0x8d, 0xfa, 0xd1,
		0xc6, 0x57, 0xe2, 0x78, 0xef, 0xe9, 0xb6, 0xa1, 0x5a, 0xbd, 0x3f, 0x02, 0x0b, 0x28, 0xd6, 0x76,
		0xfc, 0x5b, 0x19, 0x9f, 0x21, 0x66, 0x4c, 0x2d, 0x45, 0x99, 0xde, 0xab, 0x46, 0xbd, 0xe9, 0x84,
		0xc4, 0xdc, 0xc7, 0x30, 0x70, 0xdd, 0x64, 0xea, 0xbc, 0x6b, 0xd3, 0xe6, 0x45, 0x3f, 0x07, 0x7e,
		0x50, 0xef, 0xb2, 0x84, 0x33, 0x3c, 0xcc, 0x3f, 0x39, 0x5b, 0xf5, 0x6d, 0x71, 0xc5, 0xdd, 0xf5,
		0xf9, 0xd0, 0xf7, 0x9c, 0xe6, 0xc7, 0xad, 0x1b, 0x29, 0xb9, 0x90, 0x08, 0x75, 0xc4, 0xc3, 0xef,
		0xa8, 0xfc, 0xab, 0x55, 0x7c, 0x21, 0x57, 0x97, 0x87, 0x4a, 0xcb, 0x0c, 0x56, 0x0a, 0x4f, 0xcb,
		0x52, 0x33, 0x87, 0x31, 0xf3, 0x43, 0x5b, 0x41, 0x90, 0xf8, 0xc0, 0xdd, 0x5a, 0xa4, 0x26, 0x2a,
		0x60, 0xa5, 0x6d, 0xda, 0xf2, 0x6a, 0xf0, 0xb3, 0xda, 0x25, 0x33, 0x87, 0x22, 0xe4, 0xac, 0xd3,
		0x96, 0xe0, 0x99, 0x3e, 0xfb, 0x14, 0x45, 0x17, 0x25, 0x56, 0xbe, 0xef, 0x8f, 0x8e, 0x3d, 0x1e,
		0xc7, 0x99, 0xa2, 0xa1, 0x50, 0xfe, 0xdf, 0xd4, 0xa1, 0x87, 0xf4, 0xd5, 0xde, 0xa6, 0x8c, 0x6d,
		0x6c, 0xde, 0x47, 0xbe, 0x59, 0x8f, 0xd4, 0x97, 0xc3, 0xf4, 0xda, 0xbb, 0xa6, 0x73, 0xa9, 0xcb,
		0xf2, 0x01, 0xb9, 0x90, 0x8f, 0xed, 0x60, 0x64, 0x40, 0x1c, 0xb6, 0xc9, 0xa5, 0x7c, 0x17, 0x52,
		0x6f, 0xdc, 0x6d, 0x08, 0x2a, 0x1a, 0xe6, 0x68, 0x3f, 0xd4, 0x42, 0x69
	},
	{ // region 5, $1A19FA
		0x7f, 0x41, 0xf3, 0x39, 0xa0, 0x11, 0xf1, 0x11, 0x10, 0xa2, 0x4c, 0x23, 0x13, 0xe9, 0x25, 0x3d,
		0x0f, 0x72, 0x3a, 0x9d, 0xb5, 0x96, 0xd1, 0xda, 0x07, 0x29, 0x41, 0x9a, 0xad, 0x70, 0xba, 0x46,
		0x63, 0x2b, 0x7f, 0x3d, 0xbe, 0x40, 0xad, 0xd4, 0x4c, 0x73, 0x27, 0x58, 0xa7, 0x65, 0xdc, 0xd6,
		0xfd, 0xde, 0xb5, 0x6e, 0xd6, 0x6c, 0x75, 0x1a, 0x32, 0x45, 0xd5, 0xe3, 0x6a, 0x14, 0x6d, 0x80,
		0x84, 0x15, 0xaf, 0xcc, 0x7b, 0x61, 0x51, 0x82, 0x40, 0x53, 0x7f, 0x38, 0xa0, 0xd6, 0x8f, 0x61,
		0x79, 0x19, 0xe5, 0x99, 0x84, 0xd8, 0x78, 0x27, 0x3f, 0x16, 0x97, 0x78, 0x4f, 0x7b, 0x0c, 0xa6,
		0x37, 0xdb, 0xc6, 0x0c, 0x24, 0xb4, 0xc7, 0x94, 0x9d, 0x92, 0xd2, 0x3b, 0xd5, 0x11, 0x6f, 0x0a,
		0xdb, 0x76, 0x66, 0xe7, 0xcd, 0x18, 0x2b, 0x66, 0xd8, 0x41, 0x40, 0x58, 0xa2, 0x01, 0x1e, 0x6d,
		0x44, 0x75, 0xe7, 0x19, 0x4f, 0xb2, 0xe8, 0xc4, 0x96, 0x77, 0x62, 0x02, 0xc9, 0xdc, 0x59, 0xf3,
		0x43, 0x8d, 0xc8, 0xfe, 0x9e, 0x2a, 0xba, 0x32, 0x3b, 0x62, 0xe3, 0x92, 0x6e, 0xc2, 0x08, 0x4d,
		0x51, 0xcd, 0xf9, 0x3a, 0x3e, 0xc9, 0x50, 0x27, 0x21, 0x25, 0x97, 0xd7, 0x0e, 0xf8, 0x39, 0x38,
		0xf5, 0x86, 0x94, 0x93, 0xbf, 0xeb, 0x18, 0xa8, 0xfc, 0x24, 0xf5, 0xf9, 0x99, 0x20, 0x3d, 0xcd,
		0x2c, 0x94, 0x25, 0x79, 0x28, 0x77, 0x8f, 0x2f, 0x10, 0x69, 0x86, 0x30, 0x43, 0x01, 0xd7, 0x9a,
		0x17, 0xe3, 0x47, 0x37, 0xbd, 0x62, 0x75, 0x42, 0x78, 0xf4, 0x2b, 0x57, 0x4c, 0x0a, 0xdb, 0x53,
		0x4d, 0xa1, 0x0a, 0xd6, 0x3a, 0x16, 0x15, 0xaa, 0x2c, 0x6c, 0x39, 0x42
	},
	{ // region 6, $2937EA
		0x12, 0x09, 0xf3, 0x29, 0xa0, 0x11, 0xf0, 0x11, 0x10, 0xd5, 0x66, 0xa1, 0x28, 0x4a, 0x21, 0xc0,
		0xd3, 0x9b, 0x86, 0x80, 0x57, 0x6f, 0x41, 0xc2, 0xe4, 0x2f, 0x0b, 0x91, 0xbd, 0x3a, 0x7a, 0xba,
		0x00, 0xe5, 0x35, 0x02, 0x74, 0x7d, 0x8b, 0x21, 0x57, 0x10, 0x0f, 0xae, 0x44, 0xbb, 0xe2, 0x37,
		0x18, 0x7b, 0x52, 0x3d, 0x8c, 0x59, 0x9e, 0x20, 0x1f, 0x0a, 0xcc, 0x1c, 0x8e, 0x6a, 0xd7, 0x95,
		0x2b, 0x34, 0xb0, 0x82, 0x6d, 0xfd, 0x25, 0x33, 0xaa, 0x3b, 0x2b, 0x70, 0x15, 0x87, 0x31, 0x5d,
		0xbb, 0x29, 0x19, 0x95, 0xd5, 0x8e, 0x24, 0x28, 0x5e, 0xd0, 0x20, 0x83, 0x46, 0x4a, 0x21, 0x70,
		0x5b, 0xcd, 0xae, 0x7b, 0x61, 0xa1, 0xfa, 0xf4, 0x2b, 0x84, 0x15, 0x6e, 0x36, 0x5d, 0x1b, 0x24,
		0x0f, 0x09, 0x3a, 0x61, 0x38, 0x0f, 0x18, 0x35, 0x11, 0x38, 0xb4, 0xbd, 0xee, 0xf7, 0xec, 0x0f,
		0x1d, 0xb7, 0x48, 0x01, 0xaa, 0x09, 0x8f, 0x61, 0xb5, 0x0f, 0x1d, 0x26, 0x39, 0x2e, 0x8c, 0xd6,
		0x26, 0x5c, 0x3d, 0x23, 0x63, 0xe9, 0x6b, 0x97, 0xb4, 0x9f, 0x7b, 0xb6, 0xba, 0xa0, 0x7c, 0xc6,
		0x25, 0xa1, 0x73, 0x36, 0x67, 0x7f, 0x74, 0x1e, 0x1d, 0xda, 0x70, 0xbf, 0xa5, 0x63, 0x35, 0x39,
		0x24, 0x8c, 0x9f, 0x85, 0x16, 0xd8, 0x50, 0x95, 0x71, 0xc0, 0xf6, 0x1e, 0x6d, 0x80, 0xed, 0x15,
		0xeb, 0x63, 0xe9, 0x1b, 0xf6, 0x78, 0x31, 0xc6, 0x5c, 0xdd, 0x19, 0xbd, 0xdf, 0xa7, 0xec, 0x50,
		0x22, 0xad, 0xbb, 0xf6, 0xeb, 0xd6, 0xa3, 0x20, 0xc9, 0xe6, 0x9f, 0xcb, 0xf2, 0x97, 0xb9, 0x54,
		0x12, 0x66, 0xa6, 0xbe, 0x4a, 0x12, 0x43, 0xec, 0x00, 0xea, 0x49, 0x02
	},
	{ // region 7, $255E8C
		0xa4, 0x49, 0xf3, 0x29, 0xa0, 0x11, 0xf1, 0x11, 0x10, 0xef, 0x80, 0x20, 0x3d, 0xaa, 0x36, 0x5d,
		0x98, 0xc4, 0xd2, 0x63, 0xdf, 0x61, 0xb0, 0xc3, 0xc2, 0x35, 0xd4, 0x88, 0xe6, 0x1d, 0x3a, 0x2f,
		0x9c, 0xb9, 0xd1, 0xc6, 0x43, 0xba, 0x69, 0x6d, 0x49, 0xac, 0xdd, 0x05, 0xe0, 0xf8, 0xe8, 0x97,
		0x19, 0x18, 0x08, 0x0c, 0x42, 0x46, 0xc7, 0x0d, 0x25, 0xce, 0xc3, 0x54, 0xb2, 0xd9, 0x42, 0x91,
		0xea, 0x53, 0x98, 0x38, 0x78, 0x81, 0x12, 0xca, 0x15, 0x23, 0xbd, 0xc1, 0x70, 0x1f, 0xd2, 0x40,
		0xfd, 0x39, 0x33, 0xaa, 0x27, 0x2b, 0xe8, 0x10, 0x7d, 0xa4, 0xa8, 0x8e, 0x3d, 0x00, 0x4f, 0x3a,
		0x7f, 0xd8, 0x96, 0xea, 0x9e, 0x8e, 0x15, 0x6e, 0x9f, 0x76, 0x57, 0xba, 0x7d, 0xc2, 0xdf, 0x57,
		0x42, 0x82, 0xf4, 0xda, 0x89, 0x06, 0x05, 0x04, 0x62, 0x2f, 0x29, 0x23, 0x54, 0xd5, 0xbb, 0x97,
		0xf5, 0xf9, 0xc1, 0xcf, 0xec, 0x5f, 0x1d, 0xfd, 0xbb, 0xa6, 0xd7, 0x4a, 0xa8, 0x66, 0xbf, 0xb9,
		0x09, 0x44, 0xb1, 0x60, 0x28, 0xa9, 0x35, 0x16, 0x15, 0xf5, 0x13, 0xc1, 0x07, 0x7e, 0xd7, 0x40,
		0xdf, 0x8e, 0xd3, 0x32, 0xa9, 0x35, 0x98, 0x15, 0x32, 0xa9, 0x49, 0xc0, 0x24, 0xb4, 0x4a, 0x53,
		0x6b, 0x79, 0xaa, 0x77, 0x6c, 0xc5, 0x88, 0x69, 0xe5, 0x5d, 0xde, 0x42, 0x28, 0xf9, 0xb7, 0x5c,
		0xab, 0x19, 0xc7, 0xbc, 0xc5, 0x60, 0xeb, 0x5e, 0xa8, 0x52, 0xc4, 0x32, 0x7c, 0x35, 0x02, 0x06,
		0x46, 0x77, 0x30, 0xb6, 0x33, 0x4b, 0xb8, 0xfd, 0x02, 0xd8, 0x14, 0x40, 0x99, 0x25, 0x7e, 0x55,
		0xd6, 0x44, 0x43, 0x8d, 0x73, 0x0e, 0x71, 0x48, 0xd3, 0x82, 0x40, 0xda
	}
};

void pgm_028_025_state::machine_reset()
{
	const int region = (ioport(":Region")->read()) & 0xff;

	m_igs025->m_kb_region = region;
	m_igs025->m_kb_game_id = 0x00900000 | region;

	pgm_state::machine_reset();
}

void pgm_028_025_state::init_olds()
{
	pgm_basic_init();

	m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xdcb400, 0xdcb403, read16_delegate(*m_igs025, FUNC(igs025_device::killbld_igs025_prot_r)), write16_delegate(*m_igs025, FUNC(igs025_device::olds_w)));
	m_igs028->m_sharedprotram = m_sharedprotram;
	m_igs025->m_kb_source_data = m_olds_source_data;
}

void pgm_028_025_state::olds_mem(address_map &map)
{
	pgm_mem(map);
	map(0x100000, 0x3fffff).bankr("bank1"); /* Game ROM */
	map(0x400000, 0x403fff).ram().share("sharedprotram"); // Shared with protection device
}

void pgm_028_025_state::igs025_to_igs028_callback( void )
{
//  printf("igs025_to_igs028_callback\n");
	m_igs028->IGS028_handle();
}


void pgm_028_025_state::pgm_028_025_ol(machine_config &config)
{
	pgmbase(config);

	m_maincpu->set_addrmap(AS_PROGRAM, &pgm_028_025_state::olds_mem);

	IGS025(config, m_igs025, 0);
	m_igs025->set_external_cb(FUNC(pgm_028_025_state::igs025_to_igs028_callback));

	IGS028(config, m_igs028, 0);
}


INPUT_PORTS_START( olds )
	PORT_INCLUDE ( pgm )

	PORT_MODIFY("Region")   /* Region - supplied by protection device */
	PORT_CONFNAME( 0x000f, 0x0006, DEF_STR( Region ) )
	/* includes the following regions:
	1 = taiwan, 2 = china, 3 = japan (title = orlegend special),
	4 = korea, 5 = hong kong, 6 = world */
	PORT_CONFSETTING(      0x0001, DEF_STR( Taiwan ) )
	PORT_CONFSETTING(      0x0002, DEF_STR( China ) )
	PORT_CONFSETTING(      0x0003, DEF_STR( Japan ) )
	PORT_CONFSETTING(      0x0004, DEF_STR( Korea ) )
	PORT_CONFSETTING(      0x0005, DEF_STR( Hong_Kong ) )
	PORT_CONFSETTING(      0x0006, DEF_STR( World ) )
INPUT_PORTS_END