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r37155 Monday 13th April, 2015 at 10:03:08 UTC by Fabio Priuli
(MESS) gameboy: added preliminary emulation of Sachen MMC-1 mapper,
based on reverse engineering by Tauwasser. Logo handling not emulated yet
(you have to select the "Skip BIOS check" in the System Configuration menu
to play the games). [Fabio Priuli]

(MESS) gameboy.xml/gbcolor.xml: Added some recent dumps of Sachen carts
[Tauwasser, BigFred, taizou]

out of whatsnew: commit also includes some cosmetic changes suggested by Tauwasser (many thanks for the feedback!)
[hash]gameboy.xml gbcolor.xml
[src/emu/bus/gameboy]gb_slot.c gb_slot.h mbc.c mbc.h
[src/mess/drivers]gb.c

trunk/hash/gameboy.xml
r245666r245667
88
99  Undumped pirate carts:
1010  - 4B-003: Sachen 4-in-1 version 3 (Taiwan's Mahjong, Japan's Mahjong, Hong Kong's Mahjong, Store Tris)
11  - 4B-004: Sachen 4-in-1 version 4 (Pile Wonder, Snake Roy, Suleiman's Treasure, Puppet Knight)
1211  - GOWIN carts (see below the list of known games)
1312
1413-->
r245666r245667
2342823427
2342923428<!-- Sachen carts -->
2343023429
23431   <!-- This should contain Virus Attack, Electron World, Dice, Trouble Zone, but it currently does not work -->
23432   <software name="4in1" supported="no">
23433      <description>4 in 1 (Euro, 4B-002)</description>
23430   <software name="4in1_001">
23431      <description>4 in 1 (Euro, 4B-001)</description>
2343423432      <year>19??</year>
23435      <publisher>&lt;unlicensed&gt;</publisher>
23436      <info name="serial" value="4B-002"/>
23433      <publisher>Sachen</publisher>
23434      <info name="serial" value="4B-001"/>
2343723435      <part name="cart" interface="gameboy_cart">
23438         <feature name="slot" value="rom_mbc1" />
23439         <dataarea name="rom" size="65536">
23440            <rom name="4 in 1 (europe) (4b-002) (unl).bin" size="65536" crc="5e438db8" sha1="d9cb1721854709be7667f5dbce0adf2488c0919b" offset="000000" />
23436         <feature name="slot" value="rom_sachen1" />
23437         <dataarea name="rom" size="262144">
23438            <rom name="4b-001.bin" size="262144" crc="82f06e93" sha1="7506c75fdfa29935afb1e85f5b6013516b2e9f92" offset="0" />
2344123439         </dataarea>
2344223440      </part>
2344323441   </software>
2344423442
23445   <!-- Below we list the ripped games from Sachen multicarts (I assumed they come from a 4-in-1 cart, but they could come as well from a 8-in-1 cart).
23446       They should be removed as soon as the carts are properly dumped and emulated -->
23447   <software name="srider">
23448      <description>Street Rider (ripped from 4-in-1 4B-001)</description>
23443   <software name="4in1_002">
23444      <description>4 in 1 (Euro, 4B-002)</description>
2344923445      <year>19??</year>
2345023446      <publisher>Sachen</publisher>
23447      <info name="serial" value="4B-002"/>
2345123448      <part name="cart" interface="gameboy_cart">
23452         <dataarea name="rom" size="32768">
23453            <rom name="street rider (unl).bin" size="32768" crc="7751e066" sha1="b545cc60952176841590db7350479af8ec9d650e" offset="000000" />
23449         <feature name="slot" value="rom_sachen1" />
23450         <dataarea name="rom" size="65536">
23451            <rom name="4 in 1 (europe) (4b-002) (unl).bin" size="65536" crc="5e438db8" sha1="d9cb1721854709be7667f5dbce0adf2488c0919b" offset="000000" />
2345423452         </dataarea>
2345523453      </part>
2345623454   </software>
2345723455
23458   <software name="vexblock">
23459      <description>Vex Block (ripped from 4-in-1 4B-001)</description>
23456   <software name="4in1_004">
23457      <description>4 in 1 (Euro, 4B-004)</description>
2346023458      <year>19??</year>
2346123459      <publisher>Sachen</publisher>
23460      <info name="serial" value="4B-004"/>
2346223461      <part name="cart" interface="gameboy_cart">
23463         <dataarea name="rom" size="32768">
23464            <rom name="vex block (unl).bin" size="32768" crc="642aee97" sha1="869a81dbb555b2f815da5abb75304c70ce27b41c" offset="000000" />
23462         <feature name="slot" value="rom_sachen1" />
23463         <dataarea name="rom" size="262144">
23464            <rom name="4b-004.bin" size="262144" crc="c69a19f6" sha1="ca7990dc03a3b3ada1dce37afc4490deaf872402" offset="0" />
2346523465         </dataarea>
2346623466      </part>
2346723467   </software>
2346823468
23469   <software name="trapturn">
23470      <description>Trap &amp; Turn (ripped from 4-in-1 4B-001)</description>
23469   <software name="4in1_005">
23470      <description>4 in 1 (Euro, 4B-005)</description>
2347123471      <year>19??</year>
2347223472      <publisher>Sachen</publisher>
23473      <info name="serial" value="4B-005"/>
2347323474      <part name="cart" interface="gameboy_cart">
23474         <dataarea name="rom" size="32768">
23475            <rom name="trap &amp; turn (unl).bin" size="32768" crc="1c2fc6bf" sha1="822ab29560118eaa65586bbbef4ab7d64cbc9fae" offset="000000" />
23475         <feature name="slot" value="rom_sachen1" />
23476         <dataarea name="rom" size="262144">
23477            <rom name="4b-005.bin" size="262144" crc="f4310eb3" sha1="2107979104cff88bcd635215a936bbc44354ea7c" offset="0" />
2347623478         </dataarea>
2347723479      </part>
2347823480   </software>
2347923481
23480   <software name="duckadv">
23481      <description>Duck Adventures (ripped from 4-in-1 4B-001)</description>
23482      <year>1993</year>
23482   <software name="4in1_006">
23483      <description>4 in 1 (Euro, 4B-006)</description>
23484      <year>19??</year>
2348323485      <publisher>Sachen</publisher>
23486      <info name="serial" value="4B-006"/>
2348423487      <part name="cart" interface="gameboy_cart">
23485         <feature name="slot" value="rom_mbc1" />
23486         <dataarea name="rom" size="131072">
23487            <rom name="duck adventures (unl).bin" size="131072" crc="d25f3b3c" sha1="eae872c3f3e0d29dd18bc5c82f248e09af7a5888" offset="000000" />
23488         <feature name="slot" value="rom_sachen1" />
23489         <dataarea name="rom" size="262144">
23490            <rom name="4b-006.bin" size="262144" crc="95398da5" sha1="2e856de768c7cb442a206de8c94a23548027bb60" offset="0" />
2348823491         </dataarea>
2348923492      </part>
2349023493   </software>
2349123494
23492   <software name="azone">
23493      <description>Arctic Zone (ripped from 4-in-1 4B-005)</description>
23494      <year>1993</year>
23495      <publisher>Sachen</publisher>
23496      <part name="cart" interface="gameboy_cart">
23497         <dataarea name="rom" size="32768">
23498            <rom name="arctic zone (unl).bin" size="32768" crc="eefe1001" sha1="0c1bf2e1aa03d9b856abc2f6d0f5ac8ced4c44e1" offset="000000" />
23499         </dataarea>
23500      </part>
23501   </software>
23502
23503   <software name="mtower">
23504      <description>Magical Tower (ripped from 4-in-1 4B-005)</description>
23495   <software name="4in1_007" supported="no">
23496      <description>4 in 1 (Euro, 4B-007)</description>
2350523497      <year>19??</year>
2350623498      <publisher>Sachen</publisher>
23499      <info name="serial" value="4B-007"/>
2350723500      <part name="cart" interface="gameboy_cart">
23508         <feature name="slot" value="rom_mbc1" />
23509         <dataarea name="rom" size="65536">
23510            <rom name="magical tower (unl).bin" size="65536" crc="f157ae9e" sha1="c240182aef0ce365df3a61f0e0c417b7ea906200" offset="000000" />
23501         <feature name="slot" value="rom_sachen1" />
23502         <dataarea name="rom" size="262144">
23503            <rom name="4b-007.bin" size="262144" crc="62d9350e" sha1="0eef7f3934508ab79e1cad4ddf3bfdb3216b6b4f" offset="0" />
2351123504         </dataarea>
2351223505      </part>
2351323506   </software>
2351423507
23515   <software name="railway">
23516      <description>Railway (ripped from 4-in-1 4B-005)</description>
23508   <software name="4in1_008" supported="no">
23509      <description>4 in 1 (Euro, 4B-008)</description>
2351723510      <year>19??</year>
2351823511      <publisher>Sachen</publisher>
23512      <info name="serial" value="4B-008"/>
2351923513      <part name="cart" interface="gameboy_cart">
23520         <feature name="slot" value="rom_mbc1" />
23521         <dataarea name="rom" size="65536">
23522            <rom name="railway (unl).bin" size="65536" crc="a19ca3c1" sha1="6706d1da551ace91cedeb8a14f932c8e49ec87e6" offset="000000" />
23514         <feature name="slot" value="rom_sachen1" />
23515         <dataarea name="rom" size="262144">
23516            <rom name="4b-008.bin" size="262144" crc="740e9bc8" sha1="d7c11d56a42ed7c4ef2fe3c752931a63160d7429" offset="0" />
2352323517         </dataarea>
2352423518      </part>
2352523519   </software>
2352623520
23527   <software name="wormvis">
23528      <description>Worm Visitor (ripped from 4-in-1 4B-005)</description>
23521   <software name="4in1_009" supported="no">
23522      <description>4 in 1 (Euro, 4B-009)</description>
2352923523      <year>19??</year>
2353023524      <publisher>Sachen</publisher>
23525      <info name="serial" value="4B-009"/>
2353123526      <part name="cart" interface="gameboy_cart">
23532         <feature name="slot" value="rom_mbc1" />
23533         <dataarea name="rom" size="65536">
23534            <rom name="worm visitor (unl).bin" size="65536" crc="66130a7a" sha1="96819e9941ffa1bb8118df8ff4b57709a9c597e1" offset="000000" />
23527         <feature name="slot" value="rom_sachen1" />
23528         <dataarea name="rom" size="262144">
23529            <rom name="4b-009.bin" size="262144" crc="114e1f1e" sha1="39743e21935a9115fcb4ee86d67d51bdb4b5f6d6" offset="0" />
2353523530         </dataarea>
2353623531      </part>
2353723532   </software>
2353823533
23539   <software name="bombdisp">
23540      <description>Bomb Disposer (ripped from 4-in-1 4B-006)</description>
23541      <year>1993</year>
23542      <publisher>Sachen</publisher>
23543      <part name="cart" interface="gameboy_cart">
23544         <dataarea name="rom" size="32768">
23545            <rom name="bomb disposer (unl).bin" size="32768" crc="c2a85d91" sha1="f39beb0cddceab0067cb468edca60cacd5ee5a37" offset="000000" />
23546         </dataarea>
23547      </part>
23548   </software>
23549
23550   <software name="aforce">
23551      <description>A-Force (ripped from 4-in-1 4B-006)</description>
23552      <year>1993</year>
23553      <publisher>Sachen</publisher>
23554      <part name="cart" interface="gameboy_cart">
23555         <feature name="slot" value="rom_mbc1" />
23556         <dataarea name="rom" size="65536">
23557            <rom name="a-force (unl).bin" size="65536" crc="776d03dc" sha1="b8fe29112be8108cf087a5a90f347c736ad38a39" offset="000000" />
23558         </dataarea>
23559      </part>
23560   </software>
23561
23562   <software name="bftale">
23563      <description>Black Forest Tale (ripped from 4-in-1 4B-006)</description>
23564      <year>1993</year>
23565      <publisher>Sachen</publisher>
23566      <part name="cart" interface="gameboy_cart">
23567         <feature name="slot" value="rom_mbc1" />
23568         <dataarea name="rom" size="65536">
23569            <rom name="black forest tale (unl).bin" size="65536" crc="3d4e1779" sha1="f5b46d061498b37e0c6eb0513c63720db17b5e52" offset="000000" />
23570         </dataarea>
23571      </part>
23572   </software>
23573
23574   <software name="2ndspace">
23575      <description>2nd Space (ripped from 4-in-1 4B-006)</description>
23576      <year>1993</year>
23577      <publisher>Sachen</publisher>
23578      <part name="cart" interface="gameboy_cart">
23579         <feature name="slot" value="rom_mbc1" />
23580         <dataarea name="rom" size="131072">
23581            <rom name="2nd space (unl).bin" size="131072" crc="1d0f279c" sha1="9424aa6b2d12b3729d1bf0e8602632fd780f9090" offset="000000" />
23582         </dataarea>
23583      </part>
23584   </software>
23585
23534   <!-- Below we list the ripped games from Sachen multicarts (I assumed they come from a 4-in-1 cart, but they could come as well from a 8-in-1 cart).
23535       They should be removed as soon as the carts are properly dumped and emulated -->
2358623536   <software name="antsoldr" supported="partial">
2358723537      <description>Ant Soldier (ripped from 4-in-1 4B-007)</description>
2358823538      <year>1993</year>
trunk/hash/gbcolor.xml
r245666r245667
1212Undumped GBC protos:
1313  - Jet Force Gemini
1414
15
16Undumped Pirates:
17  -  Sachen EB-004 Street Hero
18
1915Unreleased (music source code exists, possibly no prototypes exist)
2016- Crimson
2117- Hard Truck
r245666r245667
2354123537      </part>
2354223538   </software>
2354323539
23540
23541   <!-- also data from ThunderBlast Man -->
23542   <software name="jboy2a" cloneof="jboy2">
23543      <description>Jurassic Boy II</description>
23544      <year>19??</year>
23545      <publisher>Sachen</publisher>
23546      <part name="cart" interface="gameboy_cart">
23547         <feature name="slot" value="rom_mbc1" />
23548         <dataarea name="rom" size="524288">
23549            <rom name="jurassicboyii.bin" size="524288" crc="497be52b" sha1="4d7f15ed30dcc6ddeea1863ee8d786e3933ca92f" offset="0" />
23550         </dataarea>
23551      </part>
23552   </software>
23553
23554   <software name="rocmanx" supported="no">
23555      <description>Rocman-X (Tw)</description>
23556      <year>19??</year>
23557      <publisher>Sachen</publisher>
23558      <part name="cart" interface="gameboy_cart">
23559         <feature name="slot" value="rom_sachen2" />
23560         <dataarea name="rom" size="524288">
23561            <rom name="rocmanx.bin" size="524288" crc="7e1351cf" sha1="7e62472c13b5a6a933aa93dc5b239f11a664f337" offset="0" />
23562         </dataarea>
23563      </part>
23564   </software>
23565
23566   <software name="shero" supported="no">
23567      <description>Street Hero (Tw)</description>
23568      <year>19??</year>
23569      <publisher>Sachen</publisher>
23570      <info name="serial" value="1B-004" />
23571      <part name="cart" interface="gameboy_cart">
23572         <feature name="slot" value="rom_sachen2" />
23573         <dataarea name="rom" size="393216">
23574            <rom name="1b-004.bin" size="393216" crc="b580cb1f" sha1="f80ffcaf0757f16ce0e6940a2ec786ebd7549458" offset="0" />
23575         </dataarea>
23576      </part>
23577   </software>
23578
23579   <software name="thundbmna" cloneof="thundbmn" supported="no">
23580      <description>Thunder Blast Man (Euro)</description>
23581      <year>19??</year>
23582      <publisher>Sachen</publisher>
23583      <info name="serial" value="SA-114" />
23584      <part name="cart" interface="gameboy_cart">
23585         <feature name="slot" value="rom_sachen2" />
23586         <dataarea name="rom" size="262144">
23587            <rom name="thunderblastman_sa-114.bin" size="262144" crc="1a719ead" sha1="676b5f0a304fb83bc04921bc617b7485af529b38" offset="0" />
23588         </dataarea>
23589      </part>
23590   </software>
23591
23592
23593
23594   <software name="mc31t" supported="no">
23595      <description>31 in 1 Mighty Mix (Tw)</description>
23596      <year>19??</year>
23597      <publisher>&lt;unknown&gt;</publisher>
23598      <part name="cart" interface="gameboy_cart">
23599         <feature name="slot" value="rom_sachen2" />
23600         <dataarea name="rom" size="2097152">
23601            <rom name="31b-001_row.bin" size="2097152" crc="0eb8ddfb" sha1="8fa0d40dc4c239108304e8799413a69a5668404c" offset="0" />
23602         </dataarea>
23603      </part>
23604   </software>
23605
23606   <software name="mc31" supported="no">
23607      <description>31-in-1 Mighty Mix (Aus)</description>
23608      <year>19??</year>
23609      <publisher>Sachen</publisher>
23610      <part name="cart" interface="gameboy_cart">
23611         <feature name="slot" value="rom_sachen2" />
23612         <dataarea name="rom" size="2097152">
23613            <rom name="31b-001_tw.bin" size="2097152" crc="21524051" sha1="c0c2a65b1485a2768962cb97ba2f9b668528453a" offset="0" />
23614         </dataarea>
23615      </part>
23616   </software>
23617
23618
23619
2354423620<!-- GOWIN games -->
2354523621<!--
2354623622
trunk/src/emu/bus/gameboy/gb_slot.c
r245666r245667
211211   { GB_MBC_MMM01, "rom_mmm01" },
212212   { GB_MBC_MBC3, "rom_huc1" },    // for now treat this as alias for MBC3
213213   { GB_MBC_MBC3, "rom_huc3" },    // for now treat this as alias for MBC3
214   { GB_MBC_SACHEN1, "rom_sachen1" },
215   { GB_MBC_SACHEN2, "rom_sachen2" },
214216   { GB_MBC_WISDOM, "rom_wisdom" },
215217   { GB_MBC_YONGYONG, "rom_yong" },
216218   { GB_MBC_LASAMA, "rom_lasama" },
trunk/src/emu/bus/gameboy/gb_slot.h
r245666r245667
2323   GB_MBC_MBC7,         /*    ?? ROM,    ?? RAM                          */
2424   GB_MBC_WISDOM,       /*    ?? ROM,    ?? RAM - Wisdom tree controller */
2525   GB_MBC_MBC1_COL,     /*   1MB ROM,  32KB RAM - workaround for MBC1 on PCB that maps rom address lines differently */
26   GB_MBC_SACHEN1,      /*    ?? ROM,    ?? RAM - Sachen MMC-1 variant */
27   GB_MBC_SACHEN2,      /*    ?? ROM,    ?? RAM - Sachen MMC-2 variant */
2628   GB_MBC_YONGYONG,     /*    ?? ROM,    ?? RAM - Appears in Sonic 3D Blast 5 pirate */
2729   GB_MBC_LASAMA,       /*    ?? ROM,    ?? RAM - Appears in La Sa Ma */
2830   GB_MBC_ATVRACIN,
trunk/src/emu/bus/gameboy/mbc.c
r245666r245667
2323const device_type GB_ROM_MBC6 = &device_creator<gb_rom_mbc6_device>;
2424const device_type GB_ROM_MBC7 = &device_creator<gb_rom_mbc7_device>;
2525const device_type GB_ROM_MMM01 = &device_creator<gb_rom_mmm01_device>;
26const device_type GB_ROM_SACHEN1 = &device_creator<gb_rom_sachen1_device>;
27const device_type GB_ROM_SACHEN2 = &device_creator<gb_rom_sachen1_device>;   // Just a placeholder for the moment...
2628const device_type GB_ROM_188IN1 = &device_creator<gb_rom_188in1_device>;
2729const device_type GB_ROM_SINTAX = &device_creator<gb_rom_sintax_device>;
2830const device_type GB_ROM_CHONGWU = &device_creator<gb_rom_chongwu_device>;
r245666r245667
8789{
8890}
8991
92gb_rom_sachen1_device::gb_rom_sachen1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
93               : gb_rom_mbc1_device(mconfig, GB_ROM_SACHEN1, "GB Sachen MMC1 Carts", tag, owner, clock, "gb_rom_sachen1", __FILE__)
94{
95}
96
9097gb_rom_188in1_device::gb_rom_188in1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
9198               : gb_rom_mbc1_device(mconfig, GB_ROM_188IN1, "GB 188in1", tag, owner, clock, "gb_rom_188in1", __FILE__)
9299{
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206213   m_reg = 0;
207214}
208215
216void gb_rom_sachen1_device::device_start()
217{
218   shared_start();
219   save_item(NAME(m_base_bank));
220   save_item(NAME(m_mask));
221}
222
223void gb_rom_sachen1_device::device_reset()
224{
225   shared_reset();
226   m_base_bank = 0;
227   m_mask = 0;
228}
229
209230void gb_rom_sintax_device::device_start()
210231{
211232   shared_start();
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280301
281302WRITE8_MEMBER(gb_rom_mbc1_device::write_bank)
282303{
283   if (offset < 0x2000)   // RAM Enable Register
284      m_ram_enable = ((data & 0x0f) == 0x0a) ? 1 : 0;
285   else if (offset < 0x4000)   // ROM Bank Register
304   // the mapper only uses inputs A13-A15
305   switch (offset & 0xe000)
286306   {
287      data &= 0x1f;
288      m_latch_bank2 = data ? data : 0x01u;
289      m_latch_bank2 &= m_mask;
307      case 0x0000:   // RAM Enable Register
308         m_ram_enable = ((data & 0x0f) == 0x0a) ? 1 : 0;
309         break;
310      case 0x2000:   // ROM Bank Register
311         data &= 0x1f;
312         m_latch_bank2 = data ? data : 1;
313         m_latch_bank2 &= m_mask;
314         break;
315      case 0x4000:   // RAM Bank Register
316         m_ram_bank = data & 0x3;
317         break;
318      case 0x6000:   // MBC1 Mode Register
319      default:
320         m_mode = (data & 0x1) ? MODE_4M_256k : MODE_16M_8k;
321         break;
290322   }
291   else if (offset < 0x6000)   // RAM Bank Register
292      m_ram_bank = data & 0x3;
293   else   // MBC1 Mode Register
294      m_mode = (data & 0x1) ? MODE_4M_256k : MODE_16M_8k;
295323}
296324
297325READ8_MEMBER(gb_rom_mbc1_device::read_ram)
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632660   }
633661}
634662
663
664// Sachen MMC1
665
666READ8_MEMBER(gb_rom_sachen1_device::read_rom)
667{
668   if (offset < 0x4000)
669      return m_rom[rom_bank_map[(m_base_bank & m_mask) | (m_latch_bank & ~m_mask)] * 0x4000 + (offset & 0x3fff)];
670   else
671      return m_rom[rom_bank_map[(m_base_bank & m_mask) | (m_latch_bank2 & ~m_mask)] * 0x4000 + (offset & 0x3fff)];
672}
673
674WRITE8_MEMBER(gb_rom_sachen1_device::write_bank)
675{
676   if (offset < 0x2000)   // Base ROM Bank register
677   {
678      if ((m_latch_bank2 & 0x30) == 0x30 && data)
679         m_base_bank = data & 0x0f;
680      //logerror("write to base bank %X - %X\n", data, (m_base_bank & m_mask) | (m_latch_bank2 & ~m_mask));
681   }
682   else if (offset < 0x4000)   // ROM Bank Register
683   {
684      m_latch_bank2 = data ? data : 1;
685      //logerror("write to latch %X - %X\n", data, (m_base_bank & m_mask) | (m_latch_bank2 & ~m_mask));
686   }
687   else if (offset < 0x6000)   // ROM bank mask register
688   {
689      if ((m_latch_bank2 & 0x30) == 0x30)
690         m_mask = data;
691      //logerror("write to mask %X - %X\n", data, (m_base_bank & m_mask) | (m_latch_bank2 & ~m_mask));
692   }
693   // nothing happens when writing to 0x6000-0x7fff, as verified by Tauwasser
694}
695
696
635697// 188 in 1 pirate (only preliminary)
636698
637699READ8_MEMBER(gb_rom_188in1_device::read_rom)
trunk/src/emu/bus/gameboy/mbc.h
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168168   UINT8 m_bank_mask, m_bank, m_reg;
169169};
170170
171// ======================> gb_rom_mbc1_device
172
173class gb_rom_sachen1_device : public gb_rom_mbc1_device
174{
175public:
176   
177   // construction/destruction
178   gb_rom_sachen1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
179   
180   // device-level overrides
181   virtual void device_start();
182   virtual void device_reset();
183   
184   virtual DECLARE_READ8_MEMBER(read_rom);
185   virtual DECLARE_WRITE8_MEMBER(write_bank);
186   virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; }
187   virtual DECLARE_WRITE8_MEMBER(write_ram) { }
188   
189   UINT8 m_base_bank, m_mask;
190};
191
171192// ======================> gb_rom_188in1_device
172193class gb_rom_188in1_device : public gb_rom_mbc1_device
173194{
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304325extern const device_type GB_ROM_MBC6;
305326extern const device_type GB_ROM_MBC7;
306327extern const device_type GB_ROM_MMM01;
328extern const device_type GB_ROM_SACHEN1;
329extern const device_type GB_ROM_SACHEN2;
307330extern const device_type GB_ROM_188IN1;
308331extern const device_type GB_ROM_SINTAX;
309332extern const device_type GB_ROM_CHONGWU;
trunk/src/mess/drivers/gb.c
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648648   SLOT_INTERFACE_INTERNAL("rom_mbc7",    GB_ROM_MBC7)
649649   SLOT_INTERFACE_INTERNAL("rom_tama5",   GB_ROM_TAMA5)
650650   SLOT_INTERFACE_INTERNAL("rom_mmm01",   GB_ROM_MMM01)
651   SLOT_INTERFACE_INTERNAL("rom_sachen1", GB_ROM_SACHEN1)
652   SLOT_INTERFACE_INTERNAL("rom_sachen2", GB_ROM_SACHEN2)
651653   SLOT_INTERFACE_INTERNAL("rom_wisdom",  GB_ROM_WISDOM)
652654   SLOT_INTERFACE_INTERNAL("rom_yong",    GB_ROM_YONG)
653655   SLOT_INTERFACE_INTERNAL("rom_lasama",  GB_ROM_LASAMA)

https://github.com/mamedev/mame/commit/dcd4f2a5b8476240591fd519c172c3f41710839a

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