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https://github.com/holub/mame
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namco/namcos10.cpp, namco/ns10crypt.cpp: Cleanup:
* Tidied some system descriptions. * Use an 8-character short name for parent Sugorotic JAPAN. * Don't use std::function unnecessarily. * Calculate GF2 reduction table at compile time.
This commit is contained in:
Vas Crabb
parent
fd4f515024
commit
05e8f26441
@ -32414,14 +32414,14 @@ gahaha // 2000.03 GAHAHA Ippatsudou (World, GID2 Ver.A)
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gahaha2 // 2001.09 GAHAHA Ippatsudou 2 (Japan, GIS1 Ver.A)
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gamshara // 2002.08 Gamshara (10021 Ver.A)
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gamsharaj // 2002.08 Gamshara (10021 Ver.A)
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gegemdb // 2007.12 Gegege no Kitarō Yōkai Yokochō Matsuri De Batoru Ja (GYM1 Ver.A)
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gegemdb // 2007.12 Gegege no Kitarō Yōkai Yokochō Matsuri de Battle Ja (GYM1 Ver.A)
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gjspace // 2001.12 Gekitoride-Jong Space (10011 Ver.A)
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gunbalina // 2000.12 Gunbalina (GNN1 Ver.A)
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kd2001 // 2001.11 Knock Down 2001 (KD11 Ver.B)
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keroro // 2006.08 Keroro Gunso Chikyu Shinryaku Shirei Dearimasu! (KRG1 Ver.A)
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knpuzzle // 2001.12 Kotoba no Puzzle Mojipittan (KPM1 Ver.A)
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konotako // 2003.11 Kono e Tako (10021 Ver.A)
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medalnt // 2005.04 Medal No Tatsujin Doki! Ooatari-Darake No Sugoroku Matsuri (MTL1 SPR0B)
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medalnt // 2005.04 Medal no Tatsujin Doki! Ooatari-Darake no Sugoroku Matsuri (MTL1 SPR0B)
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medalnt2 // 2007.02 Medal no Tatsujin 2 Atsumare! Go! Go! Sugoroku Sentai Don Ranger Five (MTA1 STMPR0A)
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mrdrilr2 // 2000.07 Mr Driller 2 (DR22 Ver.A)
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mrdrilr2j // 2000.07 Mr Driller 2 (DR21 Ver.A)
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@ -32436,7 +32436,7 @@ puzzball // 2002.02 Puzz Ball (Japan, PZB1 Ver.A)
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sekaikh // 2004.03 Sekai Kaseki Hakken (Japan, SKH1 Ver.B)
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sekaikha // 2004.03 Sekai Kaseki Hakken (Japan, SKH1 Ver.A)
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startrgn // 2002.07 Star Trigon (STT1 Ver.A)
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sugorotic // 2002.02 Sugorotic JAPAN (STJ1 Ver.C)
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sugorotc // 2002.02 Sugorotic JAPAN (STJ1 Ver.C)
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taiko2 // 2001.08 Taiko no Tatsujin 2 (Japan, TK21 Ver.C)
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taiko3 // 2002.03 Taiko no Tatsujin 3 (Japan, TK31 Ver.A)
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taiko4 // 2002.12 Taiko no Tatsujin 4 (Japan, TK41 Ver.A)
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@ -26,7 +26,7 @@ Ball Pom Line (no sticker, ROM VER. B0 FEB 09 2005 15:29:02) (C) Namco, 2005
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GAHAHA Ippatsu-dou (GID2 Ver.A) (C) Namco/Metro, 2000
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GAHAHA Ippatsu-dou 2 (GIS1 Ver.A) (C) Namco/Metro, 2001
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Gamshara (10021 Ver.A) (C) Mitchell, 2003
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Gegege no Kitaro Yokai Yokocho Matsuri De Batoru Ja (GYM1 Ver.A) (C) Namco, 2007
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Gegege no Kitaro Yokai Yokocho Matsuri de Battle Ja (GYM1 Ver.A) (C) Namco, 2007
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Gekitoride-Jong Space (10011 Ver.A) (C) Namco/Metro, 2001
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Golgo 13 Juusei no Requiem (GLT1 Ver.A) (C) Namco/8ing/Raizing, 2001
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Gunbalina (GNN1 Ver. A) (C) Namco, 2000
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@ -83,7 +83,7 @@ MAIN PCB - This is the mother board PCB. It holds the main CPU/GPU & SPU and all
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phased out. Instead, they have been replaced by (custom programmed) CPLDs, probably due to cost-cutting
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measures within the company, or to reduce the cost of System10 to an entry-level no-frills development platform.
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MEM PCB - There are four known types of this PCB (so far).
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The first type uses SSOP56 flash and TSOP48 mask ROMs.
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The first type uses SSOP56 Flash and TSOP48 mask ROMs.
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The second type uses TSOP48 NAND ROMs and also has a RAM chip on it.
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The third type uses TSOP48 NAND ROMs and has some extra hardware to decode MP3 data which comes from the ROMs or an external CDROM.
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The fourth type is manufactured by Taito and is completely different but appears to use NAND ROMs. Taito uses their PCB numbering system.
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@ -96,7 +96,7 @@ MEM PCB - There are four known types of this PCB (so far).
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dot. A similar red dot has also been seen on Namco System 246 security carts and means nothing. Speculation about a red dot on a sticker
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is pointless and has no impact on the dumps or the emulation.
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Any System 10 MEM PCB can be swapped to run on any System 10 Main PCB regardless of the main board revision.
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The high scores are stored on the MEM PCB (inside the main program flashROM or block 1 of the first NAND chip).
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The high scores are stored on the MEM PCB (inside the main program Flash ROM or block 1 of the first NAND chip).
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There are no "alt" versions with the same code, this simply means the game was dumped without first resetting the
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high score records and coinage/play statistics info to factory defaults.
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Also, on all System 10 games, there is a sticker with a serial number on it and the program ROMs also contain
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@ -193,15 +193,15 @@ Additional Notes:
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interlace mode are visually much smoother with noticeable screen flickering. Non-interlace modes gives
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a much blockier graphic display (i.e. lower resolution) but without screen flickering.
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2. There is no dedicated highscore/options EEPROM present on the PCB. The game stores the settings on the
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MEM PCB in the program flashROM or block 1 of the first NAND ROM.
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MEM PCB in the program Flash ROM or block 1 of the first NAND Flash.
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ROM Daughterboard PCBs
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----------------------
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This PCB holds all the ROMs.
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There are four known types of ROM daughterboards used on System 10 games (so far).
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All of the PCBs are the same size (approx 5" x 5") containing one custom connector surface-mounted to the underside of
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the PCB, some mask/flash/NAND ROMs, a CPLD (the customary Namco 'KEYCUS' chip but doing de-scrambling/decryption too). On the
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2nd type a RAM chip is also present. The 3rd type has additional hardware to decode MP3 audio and a ROM-less Microcontroller.
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the PCB, some mask/Flash/NAND ROMs, a CPLD (the customary Namco 'KEYCUS' chip but doing de-scrambling/decryption too). On the
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2nd type a RAM chip is also present. The 3rd type has additional hardware to decode MP3 audio and a ROM-less microcontroller.
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The 4th type was manufactured by Taito.
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********
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@ -278,8 +278,8 @@ System10 MEM(N) PCB 8906961402 (8906971402)
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|-------------------------------------|
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Notes:
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CY37256VP208 - Cypress CY37256VP208 Complex Programmable Logic Device (TQFP208)
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CY7C1019 - Cypress CY7C1019BV33-15VC or Samsung Electronics K6R1008V1C-JC15 128k x8 bit 3.3V High Speed CMOS Static Ram (SOJ32)
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1D - 8E - Samsung Electronics K9F2808U0B-YCBO 64Mbit or K9F5608U0D 128Mbit NAND flash ROM (TSOP48)
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CY7C1019 - Cypress CY7C1019BV33-15VC or Samsung Electronics K6R1008V1C-JC15 128k x8 bit 3.3V High Speed CMOS Static RAM (SOJ32)
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1D - 8E - Samsung Electronics K9F2808U0B-YCBO 64Mbit or K9F5608U0D 128Mbit NAND Flash ROM (TSOP48)
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J1 - 6 pin header for programming the CPLD via JTAG
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This PCB is used on:
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@ -429,8 +429,8 @@ SYSTEM10 MEM/IO PCB
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|-------------------------------------|
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Notes:
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CY37256VP208 - Cypress CY37256VP208 Complex Programmable Logic Device (TQFP208)
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CY7C1019 - Cypress CY7C1019BV33-15VC or Samsung Electronics K6R1008V1C-JC15 128k x8 bit 3.3V High Speed CMOS Static Ram (SOJ32)
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IC4-IC10 - Samsung Electronics K9F2808U0B-YCBO 64Mbit or Toshiba NAND flash ROM (TSOP48)
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CY7C1019 - Cypress CY7C1019BV33-15VC or Samsung Electronics K6R1008V1C-JC15 128k x8 bit 3.3V High Speed CMOS Static RAM (SOJ32)
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IC4-IC10 - Samsung Electronics K9F2808U0B-YCBO 64Mbit or Toshiba NAND Flash ROM (TSOP48)
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PAL20V8 - marked F06-02
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J1 - 10-pin header for programming the CPLD via JTAG
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CN2 - 10-pin connector for controls
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@ -635,7 +635,7 @@ Known issues:
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- mrdrilr2, mrdrilr2j: Opening the operator menu sometimes can crash Mr. Driller 2
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- nflclsfb: Needs additional I/O for trackball
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- g13jnr: Needs MP3 decoder emulation
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- sugorotic, sekaikh(?): BGMs stop early and/or crash the game. Seems to be expecting an SPU-related IRQ?
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- sugorotc, sekaikh(?): BGMs stop early and/or crash the game. Seems to be expecting an SPU-related IRQ?
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- Fix medal games I/O and refactor code to separate MGEXIO states from namcos10_state
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@ -1887,6 +1887,9 @@ void namcos10_memn_state::ns10_ballpom(machine_config &config)
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// BALLPOM_DECRYPTER(config, m_decrypter, 0);
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}
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// nasty, but makes code more terse
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inline int gf2_reduce(uint64_t num) { return ns10_type2_decrypter_device::gf2_reduce(num); }
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void namcos10_memn_state::ns10_chocovdr(machine_config &config)
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{
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namcos10_memn_base(config);
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@ -1905,9 +1908,9 @@ void namcos10_memn_state::ns10_chocovdr(machine_config &config)
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0x000000006800d3f5ull, 0x0000000000000058ull, 0x000000006800d2d5ull, 0x0000000000001840ull,
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},
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0x5b22,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 9) & (reducer.gf2_reduce(0x0000000010065810ull & previous_cipherwords) ^ reducer.gf2_reduce(0x0000000021005810ull & previous_plainwords)) & 1) << 10;
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return ((previous_masks >> 9) & (gf2_reduce(0x0000000010065810ull & previous_cipherwords) ^ gf2_reduce(0x0000000021005810ull & previous_plainwords)) & 1) << 10;
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}
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});
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}
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@ -1931,7 +1934,7 @@ void namcos10_memn_state::ns10_gahaha(machine_config &config)
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0x000000003120c000ull, 0x0000000000002100ull, 0x0000000018e002a6ull, 0x00000000a19121a0ull,
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},
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0xaea7,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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return 0;
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}
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});
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@ -1956,7 +1959,7 @@ void namcos10_memn_state::ns10_gahaha2(machine_config &config)
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0x00000001800400ull,0x00000090000040ull,0x00000000009002ull,0x000403a5020004ull
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},
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0x925a,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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u64 previous_masks = previous_cipherwords^previous_plainwords;
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return (1 & ((previous_masks >> 26) ^ (previous_masks >> 37)) & (previous_masks >> 46)) * 0x8860;
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}
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@ -1981,7 +1984,7 @@ void namcos10_memn_state::ns10_gamshara(machine_config &config)
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0x000000004400d1f1ull, 0x000000006001ce08ull, 0x00000000000000c8ull, 0x0000000054023002ull,
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},
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0x25ab,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 7) & (previous_masks >> 13) & 1) << 2;
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}
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@ -2016,7 +2019,7 @@ void namcos10_memn_state::ns10_gjspace(machine_config &config)
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0x0000000000001101ull, 0x000000000000a002ull, 0x0000000029001740ull, 0x00000000a4309bfcull,
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},
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0x2e7f,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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return 0;
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}
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});
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@ -2059,9 +2062,9 @@ void namcos10_memn_state::ns10_knpuzzle(machine_config &config)
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0x00000000012a04a2ull, 0x00000000003984a4ull, 0x0000000000000700ull, 0x0000000000000882ull,
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},
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0x01e2,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 0x13) & (reducer.gf2_reduce(0x0000000014001290ull & previous_cipherwords) ^ reducer.gf2_reduce(0x0000000000021290ull & previous_plainwords)) & 1) << 1;
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return ((previous_masks >> 0x13) & (gf2_reduce(0x0000000014001290ull & previous_cipherwords) ^ gf2_reduce(0x0000000000021290ull & previous_plainwords)) & 1) << 1;
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}
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});
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}
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@ -2084,7 +2087,7 @@ void namcos10_memn_state::ns10_konotako(machine_config &config)
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0x000000009000200bull, 0x0000000000000310ull, 0x0000000000001840ull, 0x0000000000000400ull,
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},
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0x0748,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 7) & (previous_masks >> 15) & 1) << 15;
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}
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@ -2110,9 +2113,9 @@ void namcos10_memn_state::ns10_medalnt(machine_config &config)
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0x0000004c000044ull,0x0000000000080aull,0x0000000a001214ull,0x00000000000190ull
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},
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0x5d04,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return (1 & (previous_masks>>26) & (reducer.gf2_reduce(previous_cipherwords & 0x10100080) ^ reducer.gf2_reduce(previous_plainwords & 0x40100080))) << 4;
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return (1 & (previous_masks>>26) & (gf2_reduce(previous_cipherwords & 0x10100080) ^ gf2_reduce(previous_plainwords & 0x40100080))) << 4;
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}
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});
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}
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@ -2136,9 +2139,9 @@ void namcos10_memn_state::ns10_medalnt2(machine_config &config)
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0x00000000000024ull,0x0000000000a080ull,0x00000000000042ull,0x0000000020001eull
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},
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0x4c57,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return (((previous_masks>>15) & (reducer.gf2_reduce(previous_cipherwords & 0x24200000) ^ reducer.gf2_reduce(previous_plainwords & 0x44200000))) & 1) << 9;
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return (((previous_masks>>15) & (gf2_reduce(previous_cipherwords & 0x24200000) ^ gf2_reduce(previous_plainwords & 0x44200000))) & 1) << 9;
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}
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});
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}
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@ -2170,9 +2173,9 @@ void namcos10_memn_state::ns10_nflclsfb(machine_config &config)
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0x0000000000000404ull, 0x0000000000004201ull, 0x0000000000001100ull, 0x000000008c0057b2ull,
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},
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0xbe32,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 1) & (reducer.gf2_reduce(0x0000000040de8fb3ull & previous_cipherwords) ^ reducer.gf2_reduce(0x0000000088008fb3ull & previous_plainwords)) & 1) << 2;
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return ((previous_masks >> 1) & (gf2_reduce(0x0000000040de8fb3ull & previous_cipherwords) ^ gf2_reduce(0x0000000088008fb3ull & previous_plainwords)) & 1) << 2;
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}
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});
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}
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@ -2196,7 +2199,7 @@ void namcos10_memn_state::ns10_pacmball(machine_config &config)
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0x00000000000a80ull, 0x00000000004408ull, 0x00000000000300ull, 0x00800000228002ull,
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},
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0x247c,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 2) & (previous_masks >> 6) & 1) << 1;
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}
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@ -2247,7 +2250,7 @@ void namcos10_memn_state::ns10_sekaikh(machine_config &config)
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0x00000001410806ull, 0x000000042c8019ull, 0x00000000000880ull, 0x000000b0010920ull,
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},
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0x3aa8,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 0) & (previous_masks >> 3) & 1) << 10;
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}
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@ -2272,7 +2275,7 @@ void namcos10_memn_state::ns10_startrgn(machine_config &config)
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0x0000000000000428ull, 0x0000000000001001ull, 0x000012020b10ceabull, 0x0000000000000144ull,
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},
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0x8c46,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return ((previous_masks >> 12) & (previous_masks >> 14) & 1) << 4;
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}
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@ -2298,7 +2301,7 @@ void namcos10_memn_state::ns10_sugorotic(machine_config &config)
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0x00000040228110ull,0x0000000016c000ull,0x00000000003002ull,0x00223010010020ull
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},
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0x9006,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
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return (1 & (previous_masks >> 25) & (previous_masks >> 22)) * 0xa00;
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}
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@ -2479,7 +2482,7 @@ void namcos10_memp3_state::ns10_g13jnr(machine_config &config)
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0x00470001100102ull, 0x000000408c0083ull, 0x00000000000002ull, 0x00000000000308ull
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},
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0x9546,
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords, const ns10_type2_decrypter_device::gf2_reducer& reducer) {
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[] (uint64_t previous_cipherwords, uint64_t previous_plainwords) -> uint16_t {
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uint64_t previous_masks = previous_cipherwords ^ previous_plainwords;
|
||||
return (1 & (previous_masks >> 6) & (previous_masks >> 10)) << 14;
|
||||
}
|
||||
@ -3112,7 +3115,7 @@ ROM_START( startrgn )
|
||||
ROM_LOAD( "stt1a_1.bin", 0x0000000, 0x1080000, CRC(aa527694) SHA1(a25dcbeca58a1443070848b3487a24d51d41a34b) )
|
||||
ROM_END
|
||||
|
||||
ROM_START( sugorotic )
|
||||
ROM_START( sugorotc )
|
||||
ROM_REGION32_LE( 0x400000, "maincpu:rom", 0 )
|
||||
ROM_FILL( 0x0000000, 0x400000, 0x55 )
|
||||
|
||||
@ -3269,43 +3272,43 @@ ROM_END
|
||||
|
||||
|
||||
// MEM(M)
|
||||
GAME( 2000, mrdrilr2, 0, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (World, DR22 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, mrdrilr2j, mrdrilr2, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (Japan, DR21 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, mrdrilr2u, mrdrilr2, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (US, DR23 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, mrdrilr2, 0, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (World, DR22 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, mrdrilr2j, mrdrilr2, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (Japan, DR21 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, mrdrilr2u, mrdrilr2, ns10_mrdrilr2, mrdrilr2, namcos10_memm_state, init_mrdrilr2, ROT0, "Namco", "Mr. Driller 2 (US, DR23 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
|
||||
// MEM(N)
|
||||
GAME( 2000, gahaha, 0, ns10_gahaha, gahaha, namcos10_memn_state, init_gahaha, ROT0, "Namco", "GAHAHA Ippatsudou (World, GID2 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, ptblank3, 0, ns10_ptblank3, namcos10, namcos10_memn_state, init_gunbalina, ROT0, "Namco", "Point Blank 3 (World, GNN2 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // needs to hookup gun IO
|
||||
GAME( 2000, gunbalina, ptblank3, ns10_ptblank3, namcos10, namcos10_memn_state, init_gunbalina, ROT0, "Namco", "Gunbalina (Japan, GNN1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, gahaha2, 0, ns10_gahaha2, gahaha, namcos10_memn_state, init_gahaha2, ROT0, "Namco", "GAHAHA Ippatsudou 2 (Japan, GIS1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2001, gjspace, 0, ns10_gjspace, gjspace, namcos10_memn_state, init_gjspace, ROT0, "Namco / Metro", "Gekitoride-Jong Space (10011 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2001, kd2001, 0, ns10_kd2001, namcos10, namcos10_memn_state, empty_init, ROT0, "Namco", "Knock Down 2001 (Japan, KD11 Ver. B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, knpuzzle, 0, ns10_knpuzzle, namcos10, namcos10_memn_state, init_knpuzzle, ROT0, "Namco", "Kotoba no Puzzle Mojipittan (Japan, KPM1 Ver.A)", MACHINE_IMPERFECT_SOUND ) // sound glitches on the difficulty select screen for a moment
|
||||
GAME( 2001, mrdrilrg, 0, ns10_mrdrilrg, mrdrilr2, namcos10_memn_state, init_mrdrilrg, ROT0, "Namco", "Mr. Driller G (Japan, DRG1 Ver.A, set 1)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, chocovdr, 0, ns10_chocovdr, namcos10, namcos10_memn_state, init_chocovdr, ROT0, "Namco", "Uchuu Daisakusen: Chocovader Contactee (Japan, CVC1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, gamshara, 0, ns10_gamshara, gamshara, namcos10_memn_state, init_gamshara, ROT0, "Mitchell", "Gamshara (World, 20020912A / 10021 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // Ver. 20020912A ETC
|
||||
GAME( 2002, gamsharaj, gamshara, ns10_gamshara, gamshara, namcos10_memn_state, init_gamshara, ROT0, "Mitchell", "Gamshara (Japan, 20020716A / 10021 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, panikuru, 0, ns10_panikuru, namcos10, namcos10_memn_state, init_panikuru, ROT0, "Namco", "Panicuru Panekuru (Japan, PPA1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, puzzball, 0, ns10_puzzball, namcos10, namcos10_memn_state, init_puzzball, ROT0, "Namco", "Puzz Ball (Japan, PZB1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // title guessed based on known game list and PCB sticker
|
||||
GAME( 2002, startrgn, 0, ns10_startrgn, startrgn, namcos10_memn_state, init_startrgn, ROT0, "Namco", "Star Trigon (Japan, STT1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, sugorotic, 0, ns10_sugorotic, mgexio_medal, namcos10_memn_state, init_sugorotic, ROT0, "Namco", "Sugorotic JAPAN (STJ1 Ver.C)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) // uses MGEXIO
|
||||
GAME( 2003, konotako, 0, ns10_konotako, konotako, namcos10_memn_state, init_konotako, ROT0, "Mitchell", "Kono e Tako (10021 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2003, nflclsfb, 0, ns10_nflclsfb, nflclsfb, namcos10_memn_state, init_nflclsfb, ROT0, "Namco", "NFL Classic Football (US, NCF3 Ver.A.)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_CONTROLS | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, gahaha, 0, ns10_gahaha, gahaha, namcos10_memn_state, init_gahaha, ROT0, "Namco", "GAHAHA Ippatsudou (World, GID2 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2000, ptblank3, 0, ns10_ptblank3, namcos10, namcos10_memn_state, init_gunbalina, ROT0, "Namco", "Point Blank 3 (World, GNN2 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // needs to hookup gun IO
|
||||
GAME( 2000, gunbalina, ptblank3, ns10_ptblank3, namcos10, namcos10_memn_state, init_gunbalina, ROT0, "Namco", "Gunbalina (Japan, GNN1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, gahaha2, 0, ns10_gahaha2, gahaha, namcos10_memn_state, init_gahaha2, ROT0, "Namco", "GAHAHA Ippatsudou 2 (Japan, GIS1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2001, gjspace, 0, ns10_gjspace, gjspace, namcos10_memn_state, init_gjspace, ROT0, "Namco / Metro", "Gekitoride-Jong Space (10011 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2001, kd2001, 0, ns10_kd2001, namcos10, namcos10_memn_state, empty_init, ROT0, "Namco", "Knock Down 2001 (Japan, KD11 Ver. B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, knpuzzle, 0, ns10_knpuzzle, namcos10, namcos10_memn_state, init_knpuzzle, ROT0, "Namco", "Kotoba no Puzzle Mojipittan (Japan, KPM1 Ver.A)", MACHINE_IMPERFECT_SOUND ) // sound glitches on the difficulty select screen for a moment
|
||||
GAME( 2001, mrdrilrg, 0, ns10_mrdrilrg, mrdrilr2, namcos10_memn_state, init_mrdrilrg, ROT0, "Namco", "Mr. Driller G (Japan, DRG1 Ver.A, set 1)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, chocovdr, 0, ns10_chocovdr, namcos10, namcos10_memn_state, init_chocovdr, ROT0, "Namco", "Uchuu Daisakusen: Chocovader Contactee (Japan, CVC1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, gamshara, 0, ns10_gamshara, gamshara, namcos10_memn_state, init_gamshara, ROT0, "Mitchell", "Gamshara (World, 20020912A / 10021 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // Ver. 20020912A ETC
|
||||
GAME( 2002, gamsharaj, gamshara, ns10_gamshara, gamshara, namcos10_memn_state, init_gamshara, ROT0, "Mitchell", "Gamshara (Japan, 20020716A / 10021 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, panikuru, 0, ns10_panikuru, namcos10, namcos10_memn_state, init_panikuru, ROT0, "Namco", "Panicuru Panekuru (Japan, PPA1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, puzzball, 0, ns10_puzzball, namcos10, namcos10_memn_state, init_puzzball, ROT0, "Namco", "Puzz Ball (Japan, PZB1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // title guessed based on known game list and PCB sticker
|
||||
GAME( 2002, startrgn, 0, ns10_startrgn, startrgn, namcos10_memn_state, init_startrgn, ROT0, "Namco", "Star Trigon (Japan, STT1 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, sugorotc, 0, ns10_sugorotic, mgexio_medal, namcos10_memn_state, init_sugorotic, ROT0, "Namco", "Sugorotic JAPAN (STJ1 Ver.C)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) // uses MGEXIO
|
||||
GAME( 2003, konotako, 0, ns10_konotako, konotako, namcos10_memn_state, init_konotako, ROT0, "Mitchell", "Kono e Tako (10021 Ver.A)", MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2003, nflclsfb, 0, ns10_nflclsfb, nflclsfb, namcos10_memn_state, init_nflclsfb, ROT0, "Namco", "NFL Classic Football (US, NCF3 Ver.A.)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_CONTROLS | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2003, pacmball, 0, ns10_pacmball, mgexio_medal, namcos10_memn_state, init_pacmball, ROT0, "Namco", "Pacman BALL (PMB2 Ver.A.)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2004, sekaikh, 0, ns10_sekaikh, mgexio_medal, namcos10_memn_state, init_sekaikh, ROT0, "Namco", "Sekai Kaseki Hakken (Japan, SKH1 Ver.B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_CONTROLS | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2004, sekaikha, sekaikh, ns10_sekaikh, mgexio_medal, namcos10_memn_state, init_sekaikh, ROT0, "Namco", "Sekai Kaseki Hakken (Japan, SKH1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_CONTROLS | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2005, ballpom, 0, ns10_ballpom, mgexio_medal, namcos10_memn_state, init_ballpom, ROT0, "Namco", "Ball Pom Line", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_CONTROLS | MACHINE_IMPERFECT_SOUND ) // ROM VER. B0 FEB 09 2005 15:29:02 in test mode, boots but requires MGEXIO to proceed
|
||||
GAME( 2005, medalnt, 0, ns10_medalnt, namcos10, namcos10_memn_state, init_medalnt, ROT0, "Namco", "Medal No Tatsujin Doki! Ooatari-Darake No Sugoroku Matsuri (MTL1 SPR0B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2006, keroro, 0, ns10_keroro, namcos10, namcos10_memn_state, init_keroro, ROT0, "Namco", "Keroro Gunso Chikyu Shinryaku Shirei Dearimasu! (KRG1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // ケロロ軍曹 地球侵略指令…であります！
|
||||
GAME( 2007, gegemdb, 0, ns10_gegemdb, namcos10, namcos10_memn_state, empty_init, ROT0, "Namco", "Gegege no Kitaro Yokai Yokocho Matsuri De Batoru Ja (GYM1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // ゲゲゲの鬼太郎 妖怪横丁まつりでバトルじゃ
|
||||
GAME( 2007, medalnt2, 0, ns10_medalnt2, namcos10, namcos10_memn_state, init_medalnt2, ROT0, "Namco", "Medal no Tatsujin 2 Atsumare! Go! Go! Sugoroku Sentai Don Ranger Five (MTA1 STMPR0A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) // メダルの達人2 あつまれ!ゴー!ゴー!双六戦隊ドンレンジャーファイブ MTA100-1-ST-MPR0-A00 2007/01/30 19:51:54
|
||||
GAME( 2005, medalnt, 0, ns10_medalnt, namcos10, namcos10_memn_state, init_medalnt, ROT0, "Namco", "Medal no Tatsujin Doki! Ooatari-Darake no Sugoroku Matsuri (MTL1 SPR0B)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2006, keroro, 0, ns10_keroro, namcos10, namcos10_memn_state, init_keroro, ROT0, "Namco", "Keroro Gunso Chikyu Shinryaku Shirei Dearimasu! (KRG1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // ケロロ軍曹 地球侵略指令…であります！
|
||||
GAME( 2007, gegemdb, 0, ns10_gegemdb, namcos10, namcos10_memn_state, empty_init, ROT0, "Namco", "Gegege no Kitaro Yokai Yokocho Matsuri de Battle Ja (GYM1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION ) // ゲゲゲの鬼太郎 妖怪横丁まつりでバトルじゃ
|
||||
GAME( 2007, medalnt2, 0, ns10_medalnt2, namcos10, namcos10_memn_state, init_medalnt2, ROT0, "Namco", "Medal no Tatsujin 2 Atsumare! Go! Go! Sugoroku Sentai Don Ranger Five (MTA1 STMPR0A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) // メダルの達人2 あつまれ!ゴー!ゴー!双六戦隊ドンレンジャーファイブ MTA100-1-ST-MPR0-A00 2007/01/30 19:51:54
|
||||
|
||||
GAME( 2001, taiko2, 0, ns10_taiko2, namcos10, namcos10_memn_state, init_taiko2, ROT0, "Namco", "Taiko no Tatsujin 2 (Japan, TK21 Ver.C)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, taiko3, 0, ns10_taiko3, namcos10, namcos10_memn_state, init_taiko3, ROT0, "Namco", "Taiko no Tatsujin 3 (Japan, TK31 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, taiko4, 0, ns10_taiko4, namcos10, namcos10_memn_state, init_taiko4, ROT0, "Namco", "Taiko no Tatsujin 4 (Japan, TK41 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2003, taiko5, 0, ns10_taiko5, namcos10, namcos10_memn_state, init_taiko5, ROT0, "Namco", "Taiko no Tatsujin 5 (Japan, TK51 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2004, taiko6, 0, ns10_taiko6, namcos10, namcos10_memn_state, init_taiko6, ROT0, "Namco", "Taiko no Tatsujin 6 (Japan, TK61 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, taiko2, 0, ns10_taiko2, namcos10, namcos10_memn_state, init_taiko2, ROT0, "Namco", "Taiko no Tatsujin 2 (Japan, TK21 Ver.C)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, taiko3, 0, ns10_taiko3, namcos10, namcos10_memn_state, init_taiko3, ROT0, "Namco", "Taiko no Tatsujin 3 (Japan, TK31 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2002, taiko4, 0, ns10_taiko4, namcos10, namcos10_memn_state, init_taiko4, ROT0, "Namco", "Taiko no Tatsujin 4 (Japan, TK41 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2003, taiko5, 0, ns10_taiko5, namcos10, namcos10_memn_state, init_taiko5, ROT0, "Namco", "Taiko no Tatsujin 5 (Japan, TK51 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2004, taiko6, 0, ns10_taiko6, namcos10, namcos10_memn_state, init_taiko6, ROT0, "Namco", "Taiko no Tatsujin 6 (Japan, TK61 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
|
||||
// MEM(P3)
|
||||
GAME( 2001, g13jnr, 0, ns10_g13jnr, g13jnr, namcos10_memp3_state, init_g13jnr, ROT0, "Eighting / Raizing / Namco", "Golgo 13: Juusei no Requiem (Japan, GLT1 VER.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, nicetsuk, 0, ns10_nicetsuk, namcos10, namcos10_memp3_state, init_nicetsuk, ROT0, "Namco / Metro", "Tsukkomi Yousei Gips Nice Tsukkomi (NTK1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
GAME( 2001, g13jnr, 0, ns10_g13jnr, g13jnr, namcos10_memp3_state, init_g13jnr, ROT0, "Eighting / Raizing / Namco", "Golgo 13: Juusei no Requiem (Japan, GLT1 VER.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND )
|
||||
GAME( 2002, nicetsuk, 0, ns10_nicetsuk, namcos10, namcos10_memp3_state, init_nicetsuk, ROT0, "Namco / Metro", "Tsukkomi Yousei Gips Nice Tsukkomi (NTK1 Ver.A)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND | MACHINE_UNEMULATED_PROTECTION )
|
||||
|
||||
@ -90,7 +90,7 @@ panikuru -> #2
|
||||
ptblank3 -> #11
|
||||
startrgn -> #4
|
||||
|
||||
Overall, the values used as linear masks, those from the initSbox and
|
||||
Overall, the values used as linear masks, those from the INIT_SBOX and
|
||||
the values and bit order used at initialization time are not expected to
|
||||
be exactly the ones used by the hardware; given the many degrees of freedom
|
||||
caused by the nature of the scheme, the whole set of values should
|
||||
@ -118,6 +118,9 @@ really exist.
|
||||
#include "emu.h"
|
||||
#include "ns10crypt.h"
|
||||
|
||||
#include <utility>
|
||||
|
||||
|
||||
DEFINE_DEVICE_TYPE(MRDRILR2_DECRYPTER, mrdrilr2_decrypter_device, "mrdrilr2_decrypter", "Mr Driller 2 decrypter")
|
||||
|
||||
DEFINE_DEVICE_TYPE(NS10_TYPE2_DECRYPTER, ns10_type2_decrypter_device, "ns10_type2_decrypter", "Namco System 10 Type 2 decrypter")
|
||||
@ -126,8 +129,8 @@ DEFINE_DEVICE_TYPE(NS10_TYPE2_DECRYPTER, ns10_type2_decrypter_device, "ns10_type
|
||||
|
||||
ns10_decrypter_device::ns10_decrypter_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
|
||||
: device_t(mconfig, type, tag, owner, clock)
|
||||
, m_active(false)
|
||||
{
|
||||
m_active = false;
|
||||
}
|
||||
|
||||
void ns10_decrypter_device::activate(int iv)
|
||||
@ -141,11 +144,6 @@ void ns10_decrypter_device::deactivate()
|
||||
m_active = false;
|
||||
}
|
||||
|
||||
bool ns10_decrypter_device::is_active() const
|
||||
{
|
||||
return m_active;
|
||||
}
|
||||
|
||||
ns10_decrypter_device::~ns10_decrypter_device()
|
||||
{
|
||||
}
|
||||
@ -155,16 +153,18 @@ ns10_decrypter_device::~ns10_decrypter_device()
|
||||
constexpr int UNKNOWN{16};
|
||||
constexpr int U{UNKNOWN};
|
||||
// this could perfectly be part of the per-game logic but, with only one known type-1 game, we cannot say anything definitive
|
||||
const int ns10_type1_decrypter_device::initSbox[16]{U, U, U, 0, 4, 9, U, U, U, 8, U, 1, U, 9, U, 5};
|
||||
const int ns10_type1_decrypter_device::INIT_SBOX[16]{U, U, U, 0, 4, 9, U, U, U, 8, U, 1, U, 9, U, 5};
|
||||
|
||||
ns10_type1_decrypter_device::ns10_type1_decrypter_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
|
||||
: ns10_decrypter_device(mconfig, type, tag, owner, clock)
|
||||
, m_mask(0)
|
||||
, m_counter(0)
|
||||
{
|
||||
}
|
||||
|
||||
uint16_t ns10_type1_decrypter_device::decrypt(uint16_t cipherword)
|
||||
{
|
||||
uint16_t plainword = m_mask ^ bitswap(cipherword, 9, 13, 15, 7, 14, 8, 6, 10, 11, 12, 3, 5, 0, 1, 4, 2);
|
||||
uint16_t plainword = m_mask ^ bitswap<16>(cipherword, 9, 13, 15, 7, 14, 8, 6, 10, 11, 12, 3, 5, 0, 1, 4, 2);
|
||||
|
||||
uint16_t nbs =
|
||||
((BIT(m_counter, 4)) << 15) ^
|
||||
@ -181,7 +181,7 @@ uint16_t ns10_type1_decrypter_device::decrypt(uint16_t cipherword)
|
||||
(((BIT(cipherword, 7) & BIT(m_counter, 7))) << 2) ^
|
||||
((BIT(m_counter, 5)) << 1) ^
|
||||
(((BIT(cipherword, 7) | BIT(m_counter, 1))) << 0);
|
||||
m_mask = nbs ^ bitswap(cipherword, 6, 11, 3, 1, 13, 5, 15, 10, 2, 9, 8, 4, 0, 12, 7, 14) ^ bitswap(plainword, 9, 7, 5, 2, 14, 4, 13, 8, 0, 15, 10, 1, 3, 6, 12, 11) ^ 0xecbe;
|
||||
m_mask = nbs ^ bitswap<16>(cipherword, 6, 11, 3, 1, 13, 5, 15, 10, 2, 9, 8, 4, 0, 12, 7, 14) ^ bitswap<16>(plainword, 9, 7, 5, 2, 14, 4, 13, 8, 0, 15, 10, 1, 3, 6, 12, 11) ^ 0xecbe;
|
||||
++m_counter;
|
||||
|
||||
return plainword;
|
||||
@ -189,7 +189,7 @@ uint16_t ns10_type1_decrypter_device::decrypt(uint16_t cipherword)
|
||||
|
||||
void ns10_type1_decrypter_device::init(int iv)
|
||||
{
|
||||
m_mask = initSbox[iv];
|
||||
m_mask = INIT_SBOX[iv];
|
||||
m_counter = 0;
|
||||
}
|
||||
|
||||
@ -206,22 +206,26 @@ mrdrilr2_decrypter_device::mrdrilr2_decrypter_device(const machine_config &mconf
|
||||
// type-2 decrypter
|
||||
|
||||
// this could perfectly be part of the per-game logic; by now, only gamshara seems to use it, so we keep it global
|
||||
const int ns10_type2_decrypter_device::initSbox[16]{0, 12, 13, 6, 2, 4, 9, 8, 11, 1, 7, 15, 10, 5, 14, 3};
|
||||
const int ns10_type2_decrypter_device::INIT_SBOX[16]{0, 12, 13, 6, 2, 4, 9, 8, 11, 1, 7, 15, 10, 5, 14, 3};
|
||||
|
||||
ns10_type2_decrypter_device::ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
|
||||
: ns10_decrypter_device(mconfig, NS10_TYPE2_DECRYPTER, tag, owner, clock)
|
||||
, m_mask(0)
|
||||
, m_previous_cipherwords(0)
|
||||
, m_previous_plainwords(0)
|
||||
{
|
||||
}
|
||||
|
||||
ns10_type2_decrypter_device::ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, const ns10_type2_decrypter_device::ns10_crypto_logic logic)
|
||||
: ns10_decrypter_device(mconfig, NS10_TYPE2_DECRYPTER, tag, owner, clock), m_logic(logic)
|
||||
ns10_type2_decrypter_device::ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, ns10_crypto_logic &&logic)
|
||||
: ns10_decrypter_device(mconfig, NS10_TYPE2_DECRYPTER, tag, owner, clock)
|
||||
, m_logic(std::move(logic))
|
||||
{
|
||||
m_logic_initialized = true;
|
||||
}
|
||||
|
||||
uint16_t ns10_type2_decrypter_device::decrypt(uint16_t cipherword)
|
||||
{
|
||||
uint16_t plainword = cipherword ^ m_mask;
|
||||
uint16_t const plainword = cipherword ^ m_mask;
|
||||
|
||||
m_previous_cipherwords <<= 16;
|
||||
m_previous_cipherwords ^= cipherword;
|
||||
@ -232,11 +236,11 @@ uint16_t ns10_type2_decrypter_device::decrypt(uint16_t cipherword)
|
||||
for (int j = 15; j >= 0; --j)
|
||||
{
|
||||
m_mask <<= 1;
|
||||
m_mask ^= m_reducer->gf2_reduce(m_logic.eMask[j] & m_previous_cipherwords);
|
||||
m_mask ^= m_reducer->gf2_reduce(m_logic.dMask[j] & m_previous_plainwords);
|
||||
m_mask ^= gf2_reduce(m_logic.eMask[j] & m_previous_cipherwords);
|
||||
m_mask ^= gf2_reduce(m_logic.dMask[j] & m_previous_plainwords);
|
||||
}
|
||||
m_mask ^= m_logic.xMask;
|
||||
m_mask ^= m_logic.nonlinear_calculation(m_previous_cipherwords, m_previous_plainwords, *m_reducer);
|
||||
m_mask ^= m_logic.nonlinear_calculation(m_previous_cipherwords, m_previous_plainwords);
|
||||
|
||||
return plainword;
|
||||
}
|
||||
@ -245,7 +249,7 @@ void ns10_type2_decrypter_device::init(int iv)
|
||||
{
|
||||
// by now, only gamshara requires non-trivial initialization code; data
|
||||
// should be moved to the per-game logic in case any other game do it differently
|
||||
m_previous_cipherwords = bitswap(initSbox[iv], 3, 16, 16, 2, 1, 16, 16, 0, 16, 16, 16, 16, 16, 16, 16, 16);
|
||||
m_previous_cipherwords = bitswap(INIT_SBOX[iv], 3, 16, 16, 2, 1, 16, 16, 0, 16, 16, 16, 16, 16, 16, 16, 16);
|
||||
m_previous_plainwords = 0;
|
||||
m_mask = 0;
|
||||
}
|
||||
@ -256,30 +260,24 @@ void ns10_type2_decrypter_device::device_start()
|
||||
assert(m_logic_initialized == true);
|
||||
|
||||
m_active = false;
|
||||
m_reducer = std::make_unique<gf2_reducer>();
|
||||
}
|
||||
|
||||
ns10_type2_decrypter_device::gf2_reducer::gf2_reducer()
|
||||
|
||||
// create a lookup table of GF2 reductions of 16-bits words
|
||||
|
||||
static constexpr int make_gf2_reduction(uint32_t i)
|
||||
{
|
||||
int reduction;
|
||||
|
||||
// create a look-up table of GF2 reductions of 16-bits words
|
||||
for (int i = 0; i < 0x10000; ++i)
|
||||
{
|
||||
reduction = i;
|
||||
reduction ^= reduction >> 8;
|
||||
reduction ^= reduction >> 4;
|
||||
reduction ^= reduction >> 2;
|
||||
reduction ^= reduction >> 1;
|
||||
|
||||
m_gf2Reduction[i] = reduction & 1;
|
||||
}
|
||||
i ^= i >> 8;
|
||||
i ^= i >> 4;
|
||||
i ^= i >> 2;
|
||||
i ^= i >> 1;
|
||||
return int(i & 1);
|
||||
}
|
||||
|
||||
int ns10_type2_decrypter_device::gf2_reducer::gf2_reduce(uint64_t num) const
|
||||
template <uint32_t... Values>
|
||||
static constexpr auto make_gf2_reduction(std::integer_sequence<uint32_t, Values...>)
|
||||
{
|
||||
return m_gf2Reduction[num & 0xffff] ^
|
||||
m_gf2Reduction[(num >> 16) & 0xffff] ^
|
||||
m_gf2Reduction[(num >> 32) & 0xffff] ^
|
||||
m_gf2Reduction[num >> 48];
|
||||
return std::array<int, sizeof...(Values)>({ make_gf2_reduction(Values)... });
|
||||
}
|
||||
|
||||
const std::array<int, 0x1'0000> ns10_type2_decrypter_device::GF2_REDUCTION = make_gf2_reduction(std::make_integer_sequence<uint32_t, 0x1'0000>());
|
||||
|
||||
@ -4,24 +4,30 @@
|
||||
#ifndef MAME_NAMCO_NS10CRYPT_H
|
||||
#define MAME_NAMCO_NS10CRYPT_H
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <array>
|
||||
#include <cstdint>
|
||||
|
||||
|
||||
class ns10_decrypter_device : public device_t
|
||||
{
|
||||
public:
|
||||
virtual ~ns10_decrypter_device();
|
||||
|
||||
void activate(int iv);
|
||||
void deactivate();
|
||||
bool is_active() const;
|
||||
bool is_active() const { return m_active; }
|
||||
|
||||
virtual uint16_t decrypt(uint16_t cipherword) = 0;
|
||||
virtual ~ns10_decrypter_device();
|
||||
|
||||
protected:
|
||||
ns10_decrypter_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
virtual void init(int iv) = 0;
|
||||
virtual void device_start() override = 0;
|
||||
|
||||
virtual void init(int iv) = 0;
|
||||
|
||||
bool m_active;
|
||||
};
|
||||
|
||||
@ -30,59 +36,62 @@ class ns10_type1_decrypter_device : public ns10_decrypter_device
|
||||
public:
|
||||
// with just only type-1 game known, we cannot say which parts of the crypto_logic is common, if any,
|
||||
// and which is game-specific. In practice, this class is just an alias for the decrypter device of mrdrilr2
|
||||
uint16_t decrypt(uint16_t cipherword) override;
|
||||
virtual uint16_t decrypt(uint16_t cipherword) override;
|
||||
|
||||
protected:
|
||||
ns10_type1_decrypter_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
private:
|
||||
uint16_t m_mask = 0;
|
||||
uint8_t m_counter = 0;
|
||||
static const int initSbox[16];
|
||||
virtual void device_start() override;
|
||||
|
||||
void init(int iv) override;
|
||||
void device_start() override;
|
||||
private:
|
||||
static const int INIT_SBOX[16];
|
||||
|
||||
virtual void init(int iv) override;
|
||||
|
||||
uint16_t m_mask;
|
||||
uint8_t m_counter;
|
||||
};
|
||||
|
||||
class ns10_type2_decrypter_device : public ns10_decrypter_device
|
||||
{
|
||||
public:
|
||||
class gf2_reducer // helper class
|
||||
{
|
||||
public:
|
||||
gf2_reducer();
|
||||
int gf2_reduce(uint64_t num) const;
|
||||
|
||||
private:
|
||||
int m_gf2Reduction[0x10000]{};
|
||||
};
|
||||
|
||||
// this encodes the decryption logic, which varies per game
|
||||
// and is probably hard-coded into the CPLD
|
||||
// this encodes the decryption logic, which varies per game and is probably hard-coded into the CPLD
|
||||
struct ns10_crypto_logic
|
||||
{
|
||||
using nonlinear_calculation_function = uint16_t (*)(uint64_t, uint64_t);
|
||||
uint64_t eMask[16]{};
|
||||
uint64_t dMask[16]{};
|
||||
uint16_t xMask = 0;
|
||||
std::function<uint16_t(uint64_t, uint64_t, const gf2_reducer &)> nonlinear_calculation; // preliminary encoding; need research
|
||||
nonlinear_calculation_function nonlinear_calculation = nullptr; // preliminary encoding; need research
|
||||
};
|
||||
|
||||
ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, const ns10_crypto_logic logic);
|
||||
ns10_type2_decrypter_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, ns10_crypto_logic &&logic);
|
||||
|
||||
uint16_t decrypt(uint16_t cipherword) override;
|
||||
virtual uint16_t decrypt(uint16_t cipherword) override;
|
||||
|
||||
static int gf2_reduce(uint64_t num)
|
||||
{
|
||||
return
|
||||
GF2_REDUCTION[num & 0xffff] ^
|
||||
GF2_REDUCTION[(num >> 16) & 0xffff] ^
|
||||
GF2_REDUCTION[(num >> 32) & 0xffff] ^
|
||||
GF2_REDUCTION[num >> 48];
|
||||
}
|
||||
|
||||
protected:
|
||||
virtual void device_start() override;
|
||||
|
||||
private:
|
||||
uint16_t m_mask = 0;
|
||||
uint64_t m_previous_cipherwords = 0;
|
||||
uint64_t m_previous_plainwords = 0;
|
||||
static const int INIT_SBOX[16];
|
||||
static const std::array<int, 0x1'0000> GF2_REDUCTION;
|
||||
|
||||
virtual void init(int iv) override;
|
||||
|
||||
uint16_t m_mask;
|
||||
uint64_t m_previous_cipherwords;
|
||||
uint64_t m_previous_plainwords;
|
||||
const ns10_crypto_logic m_logic;
|
||||
static const int initSbox[16];
|
||||
|
||||
void init(int iv) override;
|
||||
void device_start() override;
|
||||
|
||||
std::unique_ptr<const gf2_reducer> m_reducer;
|
||||
|
||||
bool m_logic_initialized;
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user