Ported to Android #53
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infinitesimalau
commented
Dec 19, 2019
infinitesimalau
commented
- Implement on-screen touch controller
- Use al_read/al_write for all read instead of fread/fwrite (read from apk)
- Fixed sprite collision for Android/Linux debug
- Process Android display events (rotate/switch out etc)
- Use png instead of tga (startup speed)
- Added cmake support
- Added java/gradle wrappers from allegro
…ce drift between perceived cursor and what the game will end up using.
- Implement on-screen touch controller - Use al_read/al_write for all read instead of fread/fwrite (read from apk) - Fixed sprite collision for Android/Linux debug - Process Android display events (rotate/switch out etc) - Use png instead of tga (startup speed) - Added cmake support - Added java/gradle wrappers from allegro
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Hello, It is going to be tough to merge this as is. I will try to implement the TGA>PNG conversion first as a separate commit, then we would split this in the less risky / less arguable changes that are easy to merge and the heavier ones. Lots of the change would need to be explained/justified, but we can do that once we removed some of the bigger changes first. |
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No problem. I'm on holidays for two weeks. I'm happy to answer any question you have when I'm back. |
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The ideal would be a first separate PR to use PNG and make sure it works on Windows. |
Resized touch pad
bsittler
added a commit
to bsittler/meka
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this pull request
Jun 10, 2023
…al 24 in 1 [Sonic II] (Unl)"
I've been calling it "Real 24 in 1 [Sonic II] (Unl)" but the correct name is not obvious
The label says:
REAL 24 IN 1
NEW GAME
The label also has a game listing in English and Traditional Chinese. Transcription of the English part:
```
1.SONIC Ⅱ
2.BARE KNUCKLE
3.SHINOBI Ⅱ
4.SUPER MONACO GP
5.MAGIC ADVENTURE
6.NINJA GAIDEN
7.PAC MAN
8.WOODY POP
9.COLUMAS
10.PENGO
11.TEDDYBOY-BLUES
12.ASTRD FLASH O
13.ACTION BOY
14.BANK PANIC
15.MACHINEGUN
16.HANG-ON
17.GHOST HOUSE
18.SPY VS SPY
19.SUPER TENNIS
20.SATELLITE 7
21.GREAT SOCCER
22.GREAT BASEBALL 2
23.ROAD FIGHTER
24.PIT POT
```
Chinese label text as transcribed by Google:
```
1.音速小子二代
2.格闘３人組
3.ＧＧ忍 二代
4.超級摩洛哥ＧＰ
5.魔法颱風
6.忍者外傳
7.小精靈
8.玩具磚塊
9.魔法寶石
10.企鵝推冰
11.泰迪男孩
12.空中戰機
13.青春英雄
14.銀行大盗
15.機關槍
16.摩托賽車
17.鬼屋
18.諜對諜
19.網球
20.衛星七號
21.足球
22.棒球
23.路十六
24.陷阱
```
The cartridge plastic is molded with the word "TIME" where you might expect to see "SEGA" instead
The label also includes art for G.G. Shinobi II and a gradient background (yellow at the top, light green at the bottom)
This is a 2MB ROM containing a menu and 24 games, including 10 Game Gear games, 13 SMS games, and one MSX game with an MSX BIOS replacement. The games: GG: Pengo, Columns, Woody Pop, Pac-Man, Ninja Gaiden, Magical Taruruuto-kun, Super Monaco GP, The GG Shinobi II, Bare Knuckle, Sonic the Hedgehog 2; SMS: Pit Pot, Great Baseball, Great Soccer, Satellite-7, Super Tennis, Spy vs Spy, Ghost House, Hang-On, Machine Gun Joe, Bank Panic, Seishun Scandal, Astro Flash, Teddyboy Blues; MSX: Road Fighter
Dumping this was a bit painful. This is the script I used to dump each of the parts, disconnecting and reconnecting the cartridge in between parts:
```
// Real 24 in 1 [Sonic II] (Unl)
//
// |Size| ID | Name | ID | Name |
// |----|----|---------------------|----|---------------------|
// | 32K|0x00|Menu |0x01|Pit Pot |
// | |0x02|MSX Road Fighter |0x03|Great Baseball |
// | |0x04|Great Soccer |0x05|Satellite-7 |
// | |0x06|Super Tennis |0x07|Spy vs Spy |
// | |0x08|Ghost House |0x09|Hang-On |
// | |0x0A|Machine Gun Joe |0x0B|Bank Panic |
// | |0x0C|Seishun Scandal |0x0D|Astro Flash |
// | |0x0E|Teddyboy Blues |0x0F|Pengo |
// | |0x10|Columns |0x11|Woody Pop |
// |----|----|---------------------|----|---------------------|
// | 64K|0x12|Pac-Man | | |
// |----|----|---------------------|----|---------------------|
// |128K|0x14|Ninja Gaiden |0x18|Magical Taruruuto-kun|
// | |0x1C|Super Monaco GP | | |
// |----|----|---------------------|----|---------------------|
// |256K|0x20|The GG Shinobi II |0x28|Bare Knuckle |
// |----|----|---------------------|----|---------------------|
// |512K|0x30|Sonic the Hedgehog 2 | | |
//
// NOTE: You will need to disconnect and reconnect between
// game_id values. I have not found a way to reliably
// reconfigure the mapper multiple times without power-cycling
local game_id = 0x00;
// seems the hardware does not work reliably with this
// dumping setup unless you repeat yourself a bunch...
local outer_page_attempts = 3;
local quiesce_retries = 2; // for writes to similar-addressed RAM
local write_retries = 5;
// this allows us to avoid multiple identical (slow!)
// reconfigurations after the configuration has already been
// used for reading
local previous_outer_page = -1;
for (local page = game_id; (address_scale_factor * (page - game_id) * 0x8000) < rom_size; page += 1) {
local extra_bits =
((page >= 0x12) ? 0x81 : 0x40) // >= 64K with mapper, otherwise SMS-GG mode
| ((page >= 0x14) ? 0x02 : 0x00) // >= 128K
| ((page >= 0x20) ? 0x04 : 0x00) // >= 256K
| ((page >= 0x30) ? 0x08 : 0x00) // 512K
| 0;
local outer_page = page | extra_bits;
if (outer_page != previous_outer_page) {
for (local outer_page_attempt = 0; outer_page_attempt < 3; outer_page_attempt += 1) {
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xC000, outer_page);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0x0000, outer_page);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xC000, outer_page);
}
}
previous_outer_page = outer_page;
}
local inner_page = page & 0x0F & ~extra_bits;
if (inner_page == 0x00) {
// possibly missing Sega mapper: use 0x0000..0x7FFF
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0xFFFE, (inner_page << 1) | 1);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1);
}
cpu_read (d, address_scale_factor * 0x0000, address_scale_factor * 0x8000);
} else {
// Sega mapper: use 0x8000..0xBFFF twice
for (local offset = 0; offset < 2; offset += 1) {
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0xFFFF, (inner_page << 1) | offset);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset);
}
cpu_read (d, address_scale_factor * 0x8000, address_scale_factor * 0x4000);
}
}
}
```
The menu is based on Pengo code, but that copy of Pengo is no longer playable. However there is a separate playable copy of Pengo elsewhere in the ROM. At startup the menu writes:
[0xFFFE=0xB0]
The "➡" arrow cursor is movable and shown below in its initial position. Unlike many Game Gear multicart menus, this one preserves cursor offset while switching screens
Menu screen 1:
```
┌────────────────┐
│ REAL 24 IN 1 │
└────────────────┘
➡ 1 SONIC Ⅱ [0x0000=0xBF]; it's [GG] part-30-sonic-the-hedgehog-2-512k.gg
2 BARE KNUCKLE [0x0000=0xAF]; it's [GG] part-28-bare-knuckle-256k.gg
3 SHINOBI Ⅱ [0x0000=0xA7]; it's [GG] part-20-the-gg-shinobi-ii-256k.gg
4 SUPER MONACO GP [0x0000=0x1F]; it's [GG] part-1c-super-monaco-gp-128k.gg
5 MAGIC ADVENTURE [0x0000=0x1B]; it's [GG] part-18-magical-taruruuto-kun-128k.gg
6 NINJA GAIDEN [0x0000=0x17]; it's [GG] part-14-ninja-gaiden-128k.gg
7 PAC MAN [0x0000=0x13]; it's [GG] part-12-pac-man-64k.gg
8 WOODY POP [0x0000=0x11]; it's [GG] part-11-woody-pop-32k.gg
9 COLUMNS [0x0000=0x10]; it's [GG] part-10-columns-32k.gg
10 PENGO [0x0000=0x0F]; it's [GG] part-0f-pengo-32k.gg
11 TEDDYBOY-BLUES [0x0000=0x4E]; it's [SMS-GG] part-0e-teddyboy-blues-32k.sms
12 ASTRO FLASH [0x0000=0x4D]; it's [SMS-GG] part-0d-astro-flash-32k.sms
```
Menu screen 2:
```
┌────────────────┐
│ REAL 24 IN 1 │
└────────────────┘
➡13 ACTION BOY [0x0000=0x4C]; it's [SMS-GG] part-0c-seishun-scandal-32k.sms
14 BANK PANIC [0x0000=0x4B]; it's [SMS-GG] part-0b-bank-panic-32k.sms
15 MACHINEGUN [0x0000=0x4A]; it's [SMS-GG] part-0a-machine-gun-joe-32k.sms
16 HANG-ON [0x0000=0x49]; it's [SMS-GG] part-09-hang-on-32k.sms
17 GHOST HOUSE [0x0000=0x48]; it's [SMS-GG] part-08-ghost-house-32k.sms
18 SPY VS SPY [0x0000=0x47]; it's [SMS-GG] part-07-spy-vs-spy-32k.sms
19 SUPER TENNIS [0x0000=0x46]; it's [SMS-GG] part-06-super-tennis-32k.sms
20 SATELLITE·7 [0x0000=0x45]; it's [SMS-GG] part-05-satellite-7-32k.sms
21 GREAT SOCCER [0x0000=0x44]; it's [SMS-GG] part-04-great-soccer-32k.sms
22 GREAT BASEBALL [0x0000=0x43]; it's [SMS-GG] part-03-great-baseball-32k.sms
23 ROAD FIGHTER [0x0000=0x42]; it's [SMS-GG] part-02-msx-bios-and-road-fighter-32k.sms
24 PIT POT [0x0000=0x41]; it's [SMS-GG] part-01-pit-pot-32k.sms
```
The mapper registers seem to be 0x0000, 0xFFFE, and 0xFFFF. Register 0x0000 is used for outer paging and SMS-GG mode selection. The other two are used for Sega-style paging.
Inferred mapper behavior, not yet tested exhaustively:
0x0000:
- bit 0x80: set when mapping the second megabyte, clear otherwise
- bit 0x40: set when activating SMS-GG mode, clear otherwise
- bits 0x3F: 32KB base page for outer page selection
For paging to work, the base page must be in an eligible region and
all paging-modifiable bits of the 32KB base page must be set
16KB paging mask bits:
- 0x10: when base page bit 0x08 is set and base page > 0x30
- 0x08: when base page bit 0x04 is set and base page > 0x20
- 0x04: when base page bit 0x02 is set and base page > 0x14
- 0x02: when base page bit 0x01 is set and base page > 0x12
- 0x01: always available
0xFFFE: 16KB paging offset for region 0x4000..0x7FFF (restricted by 16KB paging mask)
- 0xB0 is a special value and its meaning is unknown; it leaves the page set to 0x01
0xFFFF: 16KB paging offset for region 0x8000..0xBFFF (restricted by 16KB paging mask)
ROM fingerprint info:
2.0M Real 24 in 1 [Sonic II] (Unl).gg crc32:de6471e8 mekacrc:0E01DB0FE65FBA08 md5:d8cadcb912565e410f4278c516f561e8 sha1:763a3cdbfac247a90009f396bf9691ca6024b9de sha256:3054ad4c1d9ba02ba53e5b14d2f476c6c3525ff9fda339ef0d49383d6fd959d0
32K part-00-menu-32k.gg crc32:d80fb38b mekacrc:A19A21C2FEB5CC63 md5:e0ee46da13c7b89ffbcc40dc86a70b47 sha1:482e3563dde051e57bf40a60e5b84e208b134f65 sha256:218106d54268cf7a39a4d1f9c4317b5556df7645e7a16e8fa866b3bfa3a6c11d
32K part-01-pit-pot-32k.sms crc32:f81ab71e mekacrc:CA42846BB2AE8B1A md5:b3e6b1285bf8b820ca1344c7c4519efa sha1:55036c365d7d4496c5c5e0bfd01c13dfdb1a79f1 sha256:6679ea24710cf51b3aaa5fbee043e5ed6c446912cbc4729ab3fe4668424d1877
32K part-02-msx-bios-and-road-fighter-32k.sms crc32:e8d8e99c mekacrc:3395440A4DC7983E md5:7e82a5af56942c64c288c54050ea16fd sha1:9ed1d924035d94c7dad56644b58de88bc7d45612 sha256:01fd02d70e1672e085496c479945a91dc82362a1c7435fd05476c76538a3e0c3
32K part-03-great-baseball-32k.sms crc32:aafafd51 mekacrc:B478FD7132EF8ABB md5:ab3e87f4981bda8c486392719471ef08 sha1:9133fb22586ab10ee142192541ceb368b9b02540 sha256:8afd26d8aa991fee9e755d53cd0d2ee6f18a058580d44b5240a4c70d8997dd0e
32K part-04-great-soccer-32k.sms crc32:be711818 mekacrc:7CB0BCEF29C11827 md5:cecccff2d09d3cc705d848b28037e267 sha1:41d55da9ed00124c570d9964494b791e09d93af8 sha256:b48ce6a09946941fdf62e8ebf611fc1706344e26ea230bb206ba98cf04e9fbd2
32K part-05-satellite-7-32k.sms crc32:eb9a0359 mekacrc:C30BB9170D4D8E7A md5:7cb52be125ef66daa5e7a6e971a2a97f sha1:be0ace7ed8f1f1ab6fa51dfaa3ba2dd167ab3863 sha256:3adcd01767ee06949a930b88b76f9e2d8c89031c41e289af9d2e4290455ee5c1
32K part-06-super-tennis-32k.sms crc32:95d4c673 mekacrc:FEA3F1C357520CF6 md5:6d135ff05b6d440fa329cc060e559244 sha1:62b323b7b3188b2e0557e3e6d799edc71813c82e sha256:aa07700850080a8276bc518183e09035449a73e9c697415555bc14eca80e539b
32K part-07-spy-vs-spy-32k.sms crc32:f13a28c0 mekacrc:98EC9FA8477AEC88 md5:324741e68234ae80ff3df8bc3f411557 sha1:fd7d1bee1ca42c6d962780f21d5ad138b792db59 sha256:bcba12678775542b59694fc8fe3945530490cdd92a2bfafb07f74b189fa03ede
32K part-08-ghost-house-32k.sms crc32:317451a3 mekacrc:A5771FE4EC52960D md5:343210de693491444b452df7b665921d sha1:9917f8f06ed4c99b71d58d8a03fbea13330c84a1 sha256:c690ae4bff9711c0244e9a2ab18a579a429b29191dcc993f0ed5a496b472cfd3
32K part-09-hang-on-32k.sms crc32:40cedfd9 mekacrc:02A62976104874ED md5:5c25b6b38963fc513958a26e64c591d4 sha1:5726c7f7948612ca42daed96ded45745393bd80a sha256:5a2ecca3d78ae9aa8a6ac2c1775122cfdce3744898032ce5763c0017350e58ce
32K part-0a-machine-gun-joe-32k.sms crc32:9a94c7cc mekacrc:5C858AC9BD4714B4 md5:02906381c66601fb49b10bed123455d4 sha1:03a8a50b3b9e97ea5e10d7e094d287b51ca477af sha256:3981649682a895772012a769e8296e24e660ac4fc4102ecfbb747d53d18cee3e
32K part-0b-bank-panic-32k.sms crc32:46e1c722 mekacrc:EBA230C857CA76E4 md5:00a1f4b983ac30d05dd7cfb9bdbb2ee7 sha1:b05ac9fd2478d69f8f3bdd96ad86bbec482541f1 sha256:5c6e1f75255de9d1a7fc7d10db0ea9126633eedd018873597f78b312d2a80032
32K part-0c-seishun-scandal-32k.sms crc32:637dbbef mekacrc:D41A76F3C3411E87 md5:c021bce5a58cfbf513af253a25bc29bd sha1:2c39fdf814e223e2dc14646941a276879ae14c64 sha256:3a1df738527b578e248b6650c9a1498abaf9bef6da813a172dfae0a63be4e746
32K part-0d-astro-flash-32k.sms crc32:b1267d52 mekacrc:13171118D3218C2D md5:4c13f02b69c266ffea80fd7aba160bb2 sha1:b4e2483fbfe9e4c23a6fb14e755e5aa8c6ecece0 sha256:514484c1d4156fc77e4cefcd39cffd71f3e126c708420100ebb07e4972dc3486
32K part-0e-teddyboy-blues-32k.sms crc32:ed8dee80 mekacrc:E805AC40FA83F3B7 md5:acb4e818db613dc6f4737ef21302dc7c sha1:19d03cefeca768b08e708a161d3d6f5398450f49 sha256:e99eb0859de5801fddcf88a7d87651a6209bfe5df4f75bbd85c0b311edf6704c
32K part-0f-pengo-32k.gg crc32:6bd56e95 mekacrc:6C3C703170EBD587 md5:69bf00297cad6ee0bb6046c8084e5e37 sha1:126654feb2975e3a52431d29cefcafbd37bb2ef5 sha256:1c221bcb0b7ef67e644a695b78cb4dd851b800202ee13fd8d03fb099e533c46a
32K part-10-columns-32k.gg crc32:7316423e mekacrc:1DE54704572F032A md5:bfcf0e46ec8df8a51776bd2315b859fc sha1:26d407e8389a5564b836f0a68585a935ca019802 sha256:73f6012c1a92bcc96497668cdecfb3b592162c6b39a8c7efb8b9dc3931380561
32K part-11-woody-pop-32k.gg crc32:0c6e4769 mekacrc:9D2A47DDDF12FD27 md5:3885c64be1dc990918adebcbe9675855 sha1:58516c23f1e1b87daebda1b971fab278a6e7ce59 sha256:0c23fccffa3160b6754fa54ecbf08d3828f5e60a64dbe4203109715644ad94ce
64K part-12-pac-man-64k.gg crc32:dd001845 mekacrc:730EF79FF63F971D md5:fa8940099182cb57dc7eaa3466f43859 sha1:7d4521b55386eb7f06fed6b143c0e97bdfab264b sha256:d5b2c6fc05041802db1e5506ba9df8edf5415bbfe7c5852620cdc5f8bbb261f9
128K part-14-ninja-gaiden-128k.gg crc32:7ca9e75e mekacrc:430F39097D9A3025 md5:d9201f5ced95468d893e0f1b24438eea sha1:86681e978b3c0088d077afe850f4f9d278f5fa30 sha256:dc574770c07c5fc58b9cac371ac16307166a000df9a4015d0a2286626c2e9a72
128K part-18-magical-taruruuto-kun-128k.gg crc32:11d11451 mekacrc:1062032CD75EE446 md5:04fc405128c80de8358903a2a3b967d9 sha1:96fa1d2a82e5d0ccc3f2b7b6f1c85a3e098d048a sha256:bbcb5abea2e18b8d9e4a852b32f0b65e6aea4556f3deb70540dccb91d01b3c1b
128K part-1c-super-monaco-gp-128k.gg crc32:08ebcea1 mekacrc:9D34492A4095AD3A md5:1737583c8a857c84798ff254167025d9 sha1:69ffd99a1589bb77ca9943cbf08e07996dd0e8da sha256:08f11a8927879b681e2b23c7f3bb103002dd5468b3a58e1d6cff7bc0789af4ed
256K part-20-the-gg-shinobi-ii-256k.gg crc32:1f8f7d7c mekacrc:5312EB420F84AA31 md5:735c85911371d3c8fb18c33093307718 sha1:68e2f2b58ecbd038a4c8a9d004f2b9dee8a3b88d sha256:545d4b460b486d29d9f42029e91896eef5b0331b6cb9ea86df0ccc5e42d27de5
256K part-28-bare-knuckle-256k.gg crc32:dacc9061 mekacrc:73DB350D2119AB8B md5:80257cab0a9ed965520beeaba5bd5c9f sha1:815a1c910d016d374fff02604b521f147f529291 sha256:a027321ec909bb69ca44486a8e04193915cf733c88974a7dbc7d8551841f4461
512K part-30-sonic-the-hedgehog-2-512k.gg crc32:cda97bb3 mekacrc:DB692161E347F020 md5:6685be3154439062030746a179589090 sha1:9bd6690330a35e6d3ad6c0230c9d8984a2e2de0c sha256:8c4b4207d8c6be2c5a9d9f1ab0d3df5c76d65ce9e26ae6c9e1c6b45babf3a9b7
bsittler
added a commit
to bsittler/meka
that referenced
this pull request
Jun 10, 2023
commit 7fc13ae Author: Benjamin C. Wiley Sittler <bsittler@gmail.com> Date: Fri Jun 9 23:16:30 2023 -0700 Add mapper `ocornut#53` MAPPER_GG_Real_24_in_1_FFFE_0000_FFFF for "Real 24 in 1 [Sonic II] (Unl)" I've been calling it "Real 24 in 1 [Sonic II] (Unl)" but the correct name is not obvious The label says: REAL 24 IN 1 NEW GAME The label also has a game listing in English and Traditional Chinese. Transcription of the English part: ``` 1.SONIC Ⅱ 2.BARE KNUCKLE 3.SHINOBI Ⅱ 4.SUPER MONACO GP 5.MAGIC ADVENTURE 6.NINJA GAIDEN 7.PAC MAN 8.WOODY POP 9.COLUMAS 10.PENGO 11.TEDDYBOY-BLUES 12.ASTRD FLASH O 13.ACTION BOY 14.BANK PANIC 15.MACHINEGUN 16.HANG-ON 17.GHOST HOUSE 18.SPY VS SPY 19.SUPER TENNIS 20.SATELLITE 7 21.GREAT SOCCER 22.GREAT BASEBALL 2 23.ROAD FIGHTER 24.PIT POT ``` Chinese label text as transcribed by Google: ``` 1.音速小子二代 2.格闘３人組 3.ＧＧ忍 二代 4.超級摩洛哥ＧＰ 5.魔法颱風 6.忍者外傳 7.小精靈 8.玩具磚塊 9.魔法寶石 10.企鵝推冰 11.泰迪男孩 12.空中戰機 13.青春英雄 14.銀行大盗 15.機關槍 16.摩托賽車 17.鬼屋 18.諜對諜 19.網球 20.衛星七號 21.足球 22.棒球 23.路十六 24.陷阱 ``` The cartridge plastic is molded with the word "TIME" where you might expect to see "SEGA" instead The label also includes art for G.G. Shinobi II and a gradient background (yellow at the top, light green at the bottom) This is a 2MB ROM containing a menu and 24 games, including 10 Game Gear games, 13 SMS games, and one MSX game with an MSX BIOS replacement. The games: GG: Pengo, Columns, Woody Pop, Pac-Man, Ninja Gaiden, Magical Taruruuto-kun, Super Monaco GP, The GG Shinobi II, Bare Knuckle, Sonic the Hedgehog 2; SMS: Pit Pot, Great Baseball, Great Soccer, Satellite-7, Super Tennis, Spy vs Spy, Ghost House, Hang-On, Machine Gun Joe, Bank Panic, Seishun Scandal, Astro Flash, Teddyboy Blues; MSX: Road Fighter Dumping this was a bit painful. This is the script I used to dump each of the parts, disconnecting and reconnecting the cartridge in between parts: ``` // Real 24 in 1 [Sonic II] (Unl) // // |Size| ID | Name | ID | Name | // |----|----|---------------------|----|---------------------| // | 32K|0x00|Menu |0x01|Pit Pot | // | |0x02|MSX Road Fighter |0x03|Great Baseball | // | |0x04|Great Soccer |0x05|Satellite-7 | // | |0x06|Super Tennis |0x07|Spy vs Spy | // | |0x08|Ghost House |0x09|Hang-On | // | |0x0A|Machine Gun Joe |0x0B|Bank Panic | // | |0x0C|Seishun Scandal |0x0D|Astro Flash | // | |0x0E|Teddyboy Blues |0x0F|Pengo | // | |0x10|Columns |0x11|Woody Pop | // |----|----|---------------------|----|---------------------| // | 64K|0x12|Pac-Man | | | // |----|----|---------------------|----|---------------------| // |128K|0x14|Ninja Gaiden |0x18|Magical Taruruuto-kun| // | |0x1C|Super Monaco GP | | | // |----|----|---------------------|----|---------------------| // |256K|0x20|The GG Shinobi II |0x28|Bare Knuckle | // |----|----|---------------------|----|---------------------| // |512K|0x30|Sonic the Hedgehog 2 | | | // // NOTE: You will need to disconnect and reconnect between // game_id values. I have not found a way to reliably // reconfigure the mapper multiple times without power-cycling local game_id = 0x00; // seems the hardware does not work reliably with this // dumping setup unless you repeat yourself a bunch... local outer_page_attempts = 3; local quiesce_retries = 2; // for writes to similar-addressed RAM local write_retries = 5; // this allows us to avoid multiple identical (slow!) // reconfigurations after the configuration has already been // used for reading local previous_outer_page = -1; for (local page = game_id; (address_scale_factor * (page - game_id) * 0x8000) < rom_size; page += 1) { local extra_bits = ((page >= 0x12) ? 0x81 : 0x40) // >= 64K with mapper, otherwise SMS-GG mode | ((page >= 0x14) ? 0x02 : 0x00) // >= 128K | ((page >= 0x20) ? 0x04 : 0x00) // >= 256K | ((page >= 0x30) ? 0x08 : 0x00) // 512K | 0; local outer_page = page | extra_bits; if (outer_page != previous_outer_page) { for (local outer_page_attempt = 0; outer_page_attempt < 3; outer_page_attempt += 1) { for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xC000, outer_page); } for (local write_retry = 0; write_retry < write_retries; write_retry += 1) { cpu_write(d, address_scale_factor * 0x0000, outer_page); } for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xC000, outer_page); } } previous_outer_page = outer_page; } local inner_page = page & 0x0F & ~extra_bits; if (inner_page == 0x00) { // possibly missing Sega mapper: use 0x0000..0x7FFF for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1); } for (local write_retry = 0; write_retry < write_retries; write_retry += 1) { cpu_write(d, address_scale_factor * 0xFFFE, (inner_page << 1) | 1); } for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1); } cpu_read (d, address_scale_factor * 0x0000, address_scale_factor * 0x8000); } else { // Sega mapper: use 0x8000..0xBFFF twice for (local offset = 0; offset < 2; offset += 1) { for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset); } for (local write_retry = 0; write_retry < write_retries; write_retry += 1) { cpu_write(d, address_scale_factor * 0xFFFF, (inner_page << 1) | offset); } for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) { cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset); } cpu_read (d, address_scale_factor * 0x8000, address_scale_factor * 0x4000); } } } ``` The menu is based on Pengo code, but that copy of Pengo is no longer playable. However there is a separate playable copy of Pengo elsewhere in the ROM. At startup the menu writes: [0xFFFE=0xB0] The "➡" arrow cursor is movable and shown below in its initial position. Unlike many Game Gear multicart menus, this one preserves cursor offset while switching screens Menu screen 1: ``` ┌────────────────┐ │ REAL 24 IN 1 │ └────────────────┘ ➡ 1 SONIC Ⅱ [0x0000=0xBF]; it's [GG] part-30-sonic-the-hedgehog-2-512k.gg 2 BARE KNUCKLE [0x0000=0xAF]; it's [GG] part-28-bare-knuckle-256k.gg 3 SHINOBI Ⅱ [0x0000=0xA7]; it's [GG] part-20-the-gg-shinobi-ii-256k.gg 4 SUPER MONACO GP [0x0000=0x1F]; it's [GG] part-1c-super-monaco-gp-128k.gg 5 MAGIC ADVENTURE [0x0000=0x1B]; it's [GG] part-18-magical-taruruuto-kun-128k.gg 6 NINJA GAIDEN [0x0000=0x17]; it's [GG] part-14-ninja-gaiden-128k.gg 7 PAC MAN [0x0000=0x13]; it's [GG] part-12-pac-man-64k.gg 8 WOODY POP [0x0000=0x11]; it's [GG] part-11-woody-pop-32k.gg 9 COLUMNS [0x0000=0x10]; it's [GG] part-10-columns-32k.gg 10 PENGO [0x0000=0x0F]; it's [GG] part-0f-pengo-32k.gg 11 TEDDYBOY-BLUES [0x0000=0x4E]; it's [SMS-GG] part-0e-teddyboy-blues-32k.sms 12 ASTRO FLASH [0x0000=0x4D]; it's [SMS-GG] part-0d-astro-flash-32k.sms ``` Menu screen 2: ``` ┌────────────────┐ │ REAL 24 IN 1 │ └────────────────┘ ➡13 ACTION BOY [0x0000=0x4C]; it's [SMS-GG] part-0c-seishun-scandal-32k.sms 14 BANK PANIC [0x0000=0x4B]; it's [SMS-GG] part-0b-bank-panic-32k.sms 15 MACHINEGUN [0x0000=0x4A]; it's [SMS-GG] part-0a-machine-gun-joe-32k.sms 16 HANG-ON [0x0000=0x49]; it's [SMS-GG] part-09-hang-on-32k.sms 17 GHOST HOUSE [0x0000=0x48]; it's [SMS-GG] part-08-ghost-house-32k.sms 18 SPY VS SPY [0x0000=0x47]; it's [SMS-GG] part-07-spy-vs-spy-32k.sms 19 SUPER TENNIS [0x0000=0x46]; it's [SMS-GG] part-06-super-tennis-32k.sms 20 SATELLITE·7 [0x0000=0x45]; it's [SMS-GG] part-05-satellite-7-32k.sms 21 GREAT SOCCER [0x0000=0x44]; it's [SMS-GG] part-04-great-soccer-32k.sms 22 GREAT BASEBALL [0x0000=0x43]; it's [SMS-GG] part-03-great-baseball-32k.sms 23 ROAD FIGHTER [0x0000=0x42]; it's [SMS-GG] part-02-msx-bios-and-road-fighter-32k.sms 24 PIT POT [0x0000=0x41]; it's [SMS-GG] part-01-pit-pot-32k.sms ``` The mapper registers seem to be 0x0000, 0xFFFE, and 0xFFFF. Register 0x0000 is used for outer paging and SMS-GG mode selection. The other two are used for Sega-style paging. Inferred mapper behavior, not yet tested exhaustively: 0x0000: - bit 0x80: set when mapping the second megabyte, clear otherwise - bit 0x40: set when activating SMS-GG mode, clear otherwise - bits 0x3F: 32KB base page for outer page selection For paging to work, the base page must be in an eligible region and all paging-modifiable bits of the 32KB base page must be set 16KB paging mask bits: - 0x10: when base page bit 0x08 is set and base page > 0x30 - 0x08: when base page bit 0x04 is set and base page > 0x20 - 0x04: when base page bit 0x02 is set and base page > 0x14 - 0x02: when base page bit 0x01 is set and base page > 0x12 - 0x01: always available 0xFFFE: 16KB paging offset for region 0x4000..0x7FFF (restricted by 16KB paging mask) - 0xB0 is a special value and its meaning is unknown; it leaves the page set to 0x01 0xFFFF: 16KB paging offset for region 0x8000..0xBFFF (restricted by 16KB paging mask) ROM fingerprint info: 2.0M Real 24 in 1 [Sonic II] (Unl).gg crc32:de6471e8 mekacrc:0E01DB0FE65FBA08 md5:d8cadcb912565e410f4278c516f561e8 sha1:763a3cdbfac247a90009f396bf9691ca6024b9de sha256:3054ad4c1d9ba02ba53e5b14d2f476c6c3525ff9fda339ef0d49383d6fd959d0 32K part-00-menu-32k.gg crc32:d80fb38b mekacrc:A19A21C2FEB5CC63 md5:e0ee46da13c7b89ffbcc40dc86a70b47 sha1:482e3563dde051e57bf40a60e5b84e208b134f65 sha256:218106d54268cf7a39a4d1f9c4317b5556df7645e7a16e8fa866b3bfa3a6c11d 32K part-01-pit-pot-32k.sms crc32:f81ab71e mekacrc:CA42846BB2AE8B1A md5:b3e6b1285bf8b820ca1344c7c4519efa sha1:55036c365d7d4496c5c5e0bfd01c13dfdb1a79f1 sha256:6679ea24710cf51b3aaa5fbee043e5ed6c446912cbc4729ab3fe4668424d1877 32K part-02-msx-bios-and-road-fighter-32k.sms crc32:e8d8e99c mekacrc:3395440A4DC7983E md5:7e82a5af56942c64c288c54050ea16fd sha1:9ed1d924035d94c7dad56644b58de88bc7d45612 sha256:01fd02d70e1672e085496c479945a91dc82362a1c7435fd05476c76538a3e0c3 32K part-03-great-baseball-32k.sms crc32:aafafd51 mekacrc:B478FD7132EF8ABB md5:ab3e87f4981bda8c486392719471ef08 sha1:9133fb22586ab10ee142192541ceb368b9b02540 sha256:8afd26d8aa991fee9e755d53cd0d2ee6f18a058580d44b5240a4c70d8997dd0e 32K part-04-great-soccer-32k.sms crc32:be711818 mekacrc:7CB0BCEF29C11827 md5:cecccff2d09d3cc705d848b28037e267 sha1:41d55da9ed00124c570d9964494b791e09d93af8 sha256:b48ce6a09946941fdf62e8ebf611fc1706344e26ea230bb206ba98cf04e9fbd2 32K part-05-satellite-7-32k.sms crc32:eb9a0359 mekacrc:C30BB9170D4D8E7A md5:7cb52be125ef66daa5e7a6e971a2a97f sha1:be0ace7ed8f1f1ab6fa51dfaa3ba2dd167ab3863 sha256:3adcd01767ee06949a930b88b76f9e2d8c89031c41e289af9d2e4290455ee5c1 32K part-06-super-tennis-32k.sms crc32:95d4c673 mekacrc:FEA3F1C357520CF6 md5:6d135ff05b6d440fa329cc060e559244 sha1:62b323b7b3188b2e0557e3e6d799edc71813c82e sha256:aa07700850080a8276bc518183e09035449a73e9c697415555bc14eca80e539b 32K part-07-spy-vs-spy-32k.sms crc32:f13a28c0 mekacrc:98EC9FA8477AEC88 md5:324741e68234ae80ff3df8bc3f411557 sha1:fd7d1bee1ca42c6d962780f21d5ad138b792db59 sha256:bcba12678775542b59694fc8fe3945530490cdd92a2bfafb07f74b189fa03ede 32K part-08-ghost-house-32k.sms crc32:317451a3 mekacrc:A5771FE4EC52960D md5:343210de693491444b452df7b665921d sha1:9917f8f06ed4c99b71d58d8a03fbea13330c84a1 sha256:c690ae4bff9711c0244e9a2ab18a579a429b29191dcc993f0ed5a496b472cfd3 32K part-09-hang-on-32k.sms crc32:40cedfd9 mekacrc:02A62976104874ED md5:5c25b6b38963fc513958a26e64c591d4 sha1:5726c7f7948612ca42daed96ded45745393bd80a sha256:5a2ecca3d78ae9aa8a6ac2c1775122cfdce3744898032ce5763c0017350e58ce 32K part-0a-machine-gun-joe-32k.sms crc32:9a94c7cc mekacrc:5C858AC9BD4714B4 md5:02906381c66601fb49b10bed123455d4 sha1:03a8a50b3b9e97ea5e10d7e094d287b51ca477af sha256:3981649682a895772012a769e8296e24e660ac4fc4102ecfbb747d53d18cee3e 32K part-0b-bank-panic-32k.sms crc32:46e1c722 mekacrc:EBA230C857CA76E4 md5:00a1f4b983ac30d05dd7cfb9bdbb2ee7 sha1:b05ac9fd2478d69f8f3bdd96ad86bbec482541f1 sha256:5c6e1f75255de9d1a7fc7d10db0ea9126633eedd018873597f78b312d2a80032 32K part-0c-seishun-scandal-32k.sms crc32:637dbbef mekacrc:D41A76F3C3411E87 md5:c021bce5a58cfbf513af253a25bc29bd sha1:2c39fdf814e223e2dc14646941a276879ae14c64 sha256:3a1df738527b578e248b6650c9a1498abaf9bef6da813a172dfae0a63be4e746 32K part-0d-astro-flash-32k.sms crc32:b1267d52 mekacrc:13171118D3218C2D md5:4c13f02b69c266ffea80fd7aba160bb2 sha1:b4e2483fbfe9e4c23a6fb14e755e5aa8c6ecece0 sha256:514484c1d4156fc77e4cefcd39cffd71f3e126c708420100ebb07e4972dc3486 32K part-0e-teddyboy-blues-32k.sms crc32:ed8dee80 mekacrc:E805AC40FA83F3B7 md5:acb4e818db613dc6f4737ef21302dc7c sha1:19d03cefeca768b08e708a161d3d6f5398450f49 sha256:e99eb0859de5801fddcf88a7d87651a6209bfe5df4f75bbd85c0b311edf6704c 32K part-0f-pengo-32k.gg crc32:6bd56e95 mekacrc:6C3C703170EBD587 md5:69bf00297cad6ee0bb6046c8084e5e37 sha1:126654feb2975e3a52431d29cefcafbd37bb2ef5 sha256:1c221bcb0b7ef67e644a695b78cb4dd851b800202ee13fd8d03fb099e533c46a 32K part-10-columns-32k.gg crc32:7316423e mekacrc:1DE54704572F032A md5:bfcf0e46ec8df8a51776bd2315b859fc sha1:26d407e8389a5564b836f0a68585a935ca019802 sha256:73f6012c1a92bcc96497668cdecfb3b592162c6b39a8c7efb8b9dc3931380561 32K part-11-woody-pop-32k.gg crc32:0c6e4769 mekacrc:9D2A47DDDF12FD27 md5:3885c64be1dc990918adebcbe9675855 sha1:58516c23f1e1b87daebda1b971fab278a6e7ce59 sha256:0c23fccffa3160b6754fa54ecbf08d3828f5e60a64dbe4203109715644ad94ce 64K part-12-pac-man-64k.gg crc32:dd001845 mekacrc:730EF79FF63F971D md5:fa8940099182cb57dc7eaa3466f43859 sha1:7d4521b55386eb7f06fed6b143c0e97bdfab264b sha256:d5b2c6fc05041802db1e5506ba9df8edf5415bbfe7c5852620cdc5f8bbb261f9 128K part-14-ninja-gaiden-128k.gg crc32:7ca9e75e mekacrc:430F39097D9A3025 md5:d9201f5ced95468d893e0f1b24438eea sha1:86681e978b3c0088d077afe850f4f9d278f5fa30 sha256:dc574770c07c5fc58b9cac371ac16307166a000df9a4015d0a2286626c2e9a72 128K part-18-magical-taruruuto-kun-128k.gg crc32:11d11451 mekacrc:1062032CD75EE446 md5:04fc405128c80de8358903a2a3b967d9 sha1:96fa1d2a82e5d0ccc3f2b7b6f1c85a3e098d048a sha256:bbcb5abea2e18b8d9e4a852b32f0b65e6aea4556f3deb70540dccb91d01b3c1b 128K part-1c-super-monaco-gp-128k.gg crc32:08ebcea1 mekacrc:9D34492A4095AD3A md5:1737583c8a857c84798ff254167025d9 sha1:69ffd99a1589bb77ca9943cbf08e07996dd0e8da sha256:08f11a8927879b681e2b23c7f3bb103002dd5468b3a58e1d6cff7bc0789af4ed 256K part-20-the-gg-shinobi-ii-256k.gg crc32:1f8f7d7c mekacrc:5312EB420F84AA31 md5:735c85911371d3c8fb18c33093307718 sha1:68e2f2b58ecbd038a4c8a9d004f2b9dee8a3b88d sha256:545d4b460b486d29d9f42029e91896eef5b0331b6cb9ea86df0ccc5e42d27de5 256K part-28-bare-knuckle-256k.gg crc32:dacc9061 mekacrc:73DB350D2119AB8B md5:80257cab0a9ed965520beeaba5bd5c9f sha1:815a1c910d016d374fff02604b521f147f529291 sha256:a027321ec909bb69ca44486a8e04193915cf733c88974a7dbc7d8551841f4461 512K part-30-sonic-the-hedgehog-2-512k.gg crc32:cda97bb3 mekacrc:DB692161E347F020 md5:6685be3154439062030746a179589090 sha1:9bd6690330a35e6d3ad6c0230c9d8984a2e2de0c sha256:8c4b4207d8c6be2c5a9d9f1ab0d3df5c76d65ce9e26ae6c9e1c6b45babf3a9b7
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…al 24 in 1 [Sonic II] (Unl)"
I've been calling it "Real 24 in 1 [Sonic II] (Unl)" but the correct name is not obvious
The label says:
REAL 24 IN 1
NEW GAME
The label also has a game listing in English and Traditional Chinese. Transcription of the English part:
```
1.SONIC Ⅱ
2.BARE KNUCKLE
3.SHINOBI Ⅱ
4.SUPER MONACO GP
5.MAGIC ADVENTURE
6.NINJA GAIDEN
7.PAC MAN
8.WOODY POP
9.COLUMAS
10.PENGO
11.TEDDYBOY-BLUES
12.ASTRD FLASH O
13.ACTION BOY
14.BANK PANIC
15.MACHINEGUN
16.HANG-ON
17.GHOST HOUSE
18.SPY VS SPY
19.SUPER TENNIS
20.SATELLITE 7
21.GREAT SOCCER
22.GREAT BASEBALL 2
23.ROAD FIGHTER
24.PIT POT
```
Chinese label text as transcribed by Google:
```
1.音速小子二代
2.格闘３人組
3.ＧＧ忍 二代
4.超級摩洛哥ＧＰ
5.魔法颱風
6.忍者外傳
7.小精靈
8.玩具磚塊
9.魔法寶石
10.企鵝推冰
11.泰迪男孩
12.空中戰機
13.青春英雄
14.銀行大盗
15.機關槍
16.摩托賽車
17.鬼屋
18.諜對諜
19.網球
20.衛星七號
21.足球
22.棒球
23.路十六
24.陷阱
```
The cartridge plastic is molded with the word "TIME" where you might expect to see "SEGA" instead
The label also includes art for G.G. Shinobi II and a gradient background (yellow at the top, light green at the bottom)
This is a 2MB ROM containing a menu and 24 games, including 10 Game Gear games, 13 SMS games, and one MSX game with an MSX BIOS replacement. The games: GG: Pengo, Columns, Woody Pop, Pac-Man, Ninja Gaiden, Magical Taruruuto-kun, Super Monaco GP, The GG Shinobi II, Bare Knuckle, Sonic the Hedgehog 2; SMS: Pit Pot, Great Baseball, Great Soccer, Satellite-7, Super Tennis, Spy vs Spy, Ghost House, Hang-On, Machine Gun Joe, Bank Panic, Seishun Scandal, Astro Flash, Teddyboy Blues; MSX: Road Fighter
Dumping this was a bit painful. This is the script I used to dump each of the parts, disconnecting and reconnecting the cartridge in between parts:
```
// Real 24 in 1 [Sonic II] (Unl)
//
// |Size| ID | Name | ID | Name |
// |----|----|---------------------|----|---------------------|
// | 32K|0x00|Menu |0x01|Pit Pot |
// | |0x02|MSX Road Fighter |0x03|Great Baseball |
// | |0x04|Great Soccer |0x05|Satellite-7 |
// | |0x06|Super Tennis |0x07|Spy vs Spy |
// | |0x08|Ghost House |0x09|Hang-On |
// | |0x0A|Machine Gun Joe |0x0B|Bank Panic |
// | |0x0C|Seishun Scandal |0x0D|Astro Flash |
// | |0x0E|Teddyboy Blues |0x0F|Pengo |
// | |0x10|Columns |0x11|Woody Pop |
// |----|----|---------------------|----|---------------------|
// | 64K|0x12|Pac-Man | | |
// |----|----|---------------------|----|---------------------|
// |128K|0x14|Ninja Gaiden |0x18|Magical Taruruuto-kun|
// | |0x1C|Super Monaco GP | | |
// |----|----|---------------------|----|---------------------|
// |256K|0x20|The GG Shinobi II |0x28|Bare Knuckle |
// |----|----|---------------------|----|---------------------|
// |512K|0x30|Sonic the Hedgehog 2 | | |
//
// NOTE: You will need to disconnect and reconnect between
// game_id values. I have not found a way to reliably
// reconfigure the mapper multiple times without power-cycling
local game_id = 0x00;
// seems the hardware does not work reliably with this
// dumping setup unless you repeat yourself a bunch...
local outer_page_attempts = 3;
local quiesce_retries = 2; // for writes to similar-addressed RAM
local write_retries = 5;
// this allows us to avoid multiple identical (slow!)
// reconfigurations after the configuration has already been
// used for reading
local previous_outer_page = -1;
for (local page = game_id; (address_scale_factor * (page - game_id) * 0x8000) < rom_size; page += 1) {
local extra_bits =
((page >= 0x12) ? 0x81 : 0x40) // >= 64K with mapper, otherwise SMS-GG mode
| ((page >= 0x14) ? 0x02 : 0x00) // >= 128K
| ((page >= 0x20) ? 0x04 : 0x00) // >= 256K
| ((page >= 0x30) ? 0x08 : 0x00) // 512K
| 0;
local outer_page = page | extra_bits;
if (outer_page != previous_outer_page) {
for (local outer_page_attempt = 0; outer_page_attempt < 3; outer_page_attempt += 1) {
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xC000, outer_page);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0x0000, outer_page);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xC000, outer_page);
}
}
previous_outer_page = outer_page;
}
local inner_page = page & 0x0F & ~extra_bits;
if (inner_page == 0x00) {
// possibly missing Sega mapper: use 0x0000..0x7FFF
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0xFFFE, (inner_page << 1) | 1);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFE, (inner_page << 1) | 1);
}
cpu_read (d, address_scale_factor * 0x0000, address_scale_factor * 0x8000);
} else {
// Sega mapper: use 0x8000..0xBFFF twice
for (local offset = 0; offset < 2; offset += 1) {
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset);
}
for (local write_retry = 0; write_retry < write_retries; write_retry += 1) {
cpu_write(d, address_scale_factor * 0xFFFF, (inner_page << 1) | offset);
}
for (local quiesce_retry = 0; quiesce_retry < quiesce_retries; quiesce_retry += 1) {
cpu_write(d, address_scale_factor * 0xDFFF, (inner_page << 1) | offset);
}
cpu_read (d, address_scale_factor * 0x8000, address_scale_factor * 0x4000);
}
}
}
```
The menu is based on Pengo code, but that copy of Pengo is no longer playable. However there is a separate playable copy of Pengo elsewhere in the ROM. At startup the menu writes:
[0xFFFE=0xB0]
The "➡" arrow cursor is movable and shown below in its initial position. Unlike many Game Gear multicart menus, this one preserves cursor offset while switching screens
Menu screen 1:
```
┌────────────────┐
│ REAL 24 IN 1 │
└────────────────┘
➡ 1 SONIC Ⅱ [0x0000=0xBF]; it's [GG] part-30-sonic-the-hedgehog-2-512k.gg
2 BARE KNUCKLE [0x0000=0xAF]; it's [GG] part-28-bare-knuckle-256k.gg
3 SHINOBI Ⅱ [0x0000=0xA7]; it's [GG] part-20-the-gg-shinobi-ii-256k.gg
4 SUPER MONACO GP [0x0000=0x1F]; it's [GG] part-1c-super-monaco-gp-128k.gg
5 MAGIC ADVENTURE [0x0000=0x1B]; it's [GG] part-18-magical-taruruuto-kun-128k.gg
6 NINJA GAIDEN [0x0000=0x17]; it's [GG] part-14-ninja-gaiden-128k.gg
7 PAC MAN [0x0000=0x13]; it's [GG] part-12-pac-man-64k.gg
8 WOODY POP [0x0000=0x11]; it's [GG] part-11-woody-pop-32k.gg
9 COLUMNS [0x0000=0x10]; it's [GG] part-10-columns-32k.gg
10 PENGO [0x0000=0x0F]; it's [GG] part-0f-pengo-32k.gg
11 TEDDYBOY-BLUES [0x0000=0x4E]; it's [SMS-GG] part-0e-teddyboy-blues-32k.sms
12 ASTRO FLASH [0x0000=0x4D]; it's [SMS-GG] part-0d-astro-flash-32k.sms
```
Menu screen 2:
```
┌────────────────┐
│ REAL 24 IN 1 │
└────────────────┘
➡13 ACTION BOY [0x0000=0x4C]; it's [SMS-GG] part-0c-seishun-scandal-32k.sms
14 BANK PANIC [0x0000=0x4B]; it's [SMS-GG] part-0b-bank-panic-32k.sms
15 MACHINEGUN [0x0000=0x4A]; it's [SMS-GG] part-0a-machine-gun-joe-32k.sms
16 HANG-ON [0x0000=0x49]; it's [SMS-GG] part-09-hang-on-32k.sms
17 GHOST HOUSE [0x0000=0x48]; it's [SMS-GG] part-08-ghost-house-32k.sms
18 SPY VS SPY [0x0000=0x47]; it's [SMS-GG] part-07-spy-vs-spy-32k.sms
19 SUPER TENNIS [0x0000=0x46]; it's [SMS-GG] part-06-super-tennis-32k.sms
20 SATELLITE·7 [0x0000=0x45]; it's [SMS-GG] part-05-satellite-7-32k.sms
21 GREAT SOCCER [0x0000=0x44]; it's [SMS-GG] part-04-great-soccer-32k.sms
22 GREAT BASEBALL [0x0000=0x43]; it's [SMS-GG] part-03-great-baseball-32k.sms
23 ROAD FIGHTER [0x0000=0x42]; it's [SMS-GG] part-02-msx-bios-and-road-fighter-32k.sms
24 PIT POT [0x0000=0x41]; it's [SMS-GG] part-01-pit-pot-32k.sms
```
The mapper registers seem to be 0x0000, 0xFFFE, and 0xFFFF. Register 0x0000 is used for outer paging and SMS-GG mode selection. The other two are used for Sega-style paging.
Inferred mapper behavior, not yet tested exhaustively:
0x0000:
- bit 0x80: set when mapping the second megabyte, clear otherwise
- bit 0x40: set when activating SMS-GG mode, clear otherwise
- bits 0x3F: 32KB base page for outer page selection
For paging to work, the base page must be in an eligible region and
all paging-modifiable bits of the 32KB base page must be set
16KB paging mask bits:
- 0x10: when base page bit 0x08 is set and base page > 0x30
- 0x08: when base page bit 0x04 is set and base page > 0x20
- 0x04: when base page bit 0x02 is set and base page > 0x14
- 0x02: when base page bit 0x01 is set and base page > 0x12
- 0x01: always available
0xFFFE: 16KB paging offset for region 0x4000..0x7FFF (restricted by 16KB paging mask)
- 0xB0 is a special value and its meaning is unknown; it leaves the page set to 0x01
0xFFFF: 16KB paging offset for region 0x8000..0xBFFF (restricted by 16KB paging mask)
ROM fingerprint info:
2.0M Real 24 in 1 [Sonic II] (Unl).gg crc32:de6471e8 mekacrc:0E01DB0FE65FBA08 md5:d8cadcb912565e410f4278c516f561e8 sha1:763a3cdbfac247a90009f396bf9691ca6024b9de sha256:3054ad4c1d9ba02ba53e5b14d2f476c6c3525ff9fda339ef0d49383d6fd959d0
32K part-00-menu-32k.gg crc32:d80fb38b mekacrc:A19A21C2FEB5CC63 md5:e0ee46da13c7b89ffbcc40dc86a70b47 sha1:482e3563dde051e57bf40a60e5b84e208b134f65 sha256:218106d54268cf7a39a4d1f9c4317b5556df7645e7a16e8fa866b3bfa3a6c11d
32K part-01-pit-pot-32k.sms crc32:f81ab71e mekacrc:CA42846BB2AE8B1A md5:b3e6b1285bf8b820ca1344c7c4519efa sha1:55036c365d7d4496c5c5e0bfd01c13dfdb1a79f1 sha256:6679ea24710cf51b3aaa5fbee043e5ed6c446912cbc4729ab3fe4668424d1877
32K part-02-msx-bios-and-road-fighter-32k.sms crc32:e8d8e99c mekacrc:3395440A4DC7983E md5:7e82a5af56942c64c288c54050ea16fd sha1:9ed1d924035d94c7dad56644b58de88bc7d45612 sha256:01fd02d70e1672e085496c479945a91dc82362a1c7435fd05476c76538a3e0c3
32K part-03-great-baseball-32k.sms crc32:aafafd51 mekacrc:B478FD7132EF8ABB md5:ab3e87f4981bda8c486392719471ef08 sha1:9133fb22586ab10ee142192541ceb368b9b02540 sha256:8afd26d8aa991fee9e755d53cd0d2ee6f18a058580d44b5240a4c70d8997dd0e
32K part-04-great-soccer-32k.sms crc32:be711818 mekacrc:7CB0BCEF29C11827 md5:cecccff2d09d3cc705d848b28037e267 sha1:41d55da9ed00124c570d9964494b791e09d93af8 sha256:b48ce6a09946941fdf62e8ebf611fc1706344e26ea230bb206ba98cf04e9fbd2
32K part-05-satellite-7-32k.sms crc32:eb9a0359 mekacrc:C30BB9170D4D8E7A md5:7cb52be125ef66daa5e7a6e971a2a97f sha1:be0ace7ed8f1f1ab6fa51dfaa3ba2dd167ab3863 sha256:3adcd01767ee06949a930b88b76f9e2d8c89031c41e289af9d2e4290455ee5c1
32K part-06-super-tennis-32k.sms crc32:95d4c673 mekacrc:FEA3F1C357520CF6 md5:6d135ff05b6d440fa329cc060e559244 sha1:62b323b7b3188b2e0557e3e6d799edc71813c82e sha256:aa07700850080a8276bc518183e09035449a73e9c697415555bc14eca80e539b
32K part-07-spy-vs-spy-32k.sms crc32:f13a28c0 mekacrc:98EC9FA8477AEC88 md5:324741e68234ae80ff3df8bc3f411557 sha1:fd7d1bee1ca42c6d962780f21d5ad138b792db59 sha256:bcba12678775542b59694fc8fe3945530490cdd92a2bfafb07f74b189fa03ede
32K part-08-ghost-house-32k.sms crc32:317451a3 mekacrc:A5771FE4EC52960D md5:343210de693491444b452df7b665921d sha1:9917f8f06ed4c99b71d58d8a03fbea13330c84a1 sha256:c690ae4bff9711c0244e9a2ab18a579a429b29191dcc993f0ed5a496b472cfd3
32K part-09-hang-on-32k.sms crc32:40cedfd9 mekacrc:02A62976104874ED md5:5c25b6b38963fc513958a26e64c591d4 sha1:5726c7f7948612ca42daed96ded45745393bd80a sha256:5a2ecca3d78ae9aa8a6ac2c1775122cfdce3744898032ce5763c0017350e58ce
32K part-0a-machine-gun-joe-32k.sms crc32:9a94c7cc mekacrc:5C858AC9BD4714B4 md5:02906381c66601fb49b10bed123455d4 sha1:03a8a50b3b9e97ea5e10d7e094d287b51ca477af sha256:3981649682a895772012a769e8296e24e660ac4fc4102ecfbb747d53d18cee3e
32K part-0b-bank-panic-32k.sms crc32:46e1c722 mekacrc:EBA230C857CA76E4 md5:00a1f4b983ac30d05dd7cfb9bdbb2ee7 sha1:b05ac9fd2478d69f8f3bdd96ad86bbec482541f1 sha256:5c6e1f75255de9d1a7fc7d10db0ea9126633eedd018873597f78b312d2a80032
32K part-0c-seishun-scandal-32k.sms crc32:637dbbef mekacrc:D41A76F3C3411E87 md5:c021bce5a58cfbf513af253a25bc29bd sha1:2c39fdf814e223e2dc14646941a276879ae14c64 sha256:3a1df738527b578e248b6650c9a1498abaf9bef6da813a172dfae0a63be4e746
32K part-0d-astro-flash-32k.sms crc32:b1267d52 mekacrc:13171118D3218C2D md5:4c13f02b69c266ffea80fd7aba160bb2 sha1:b4e2483fbfe9e4c23a6fb14e755e5aa8c6ecece0 sha256:514484c1d4156fc77e4cefcd39cffd71f3e126c708420100ebb07e4972dc3486
32K part-0e-teddyboy-blues-32k.sms crc32:ed8dee80 mekacrc:E805AC40FA83F3B7 md5:acb4e818db613dc6f4737ef21302dc7c sha1:19d03cefeca768b08e708a161d3d6f5398450f49 sha256:e99eb0859de5801fddcf88a7d87651a6209bfe5df4f75bbd85c0b311edf6704c
32K part-0f-pengo-32k.gg crc32:6bd56e95 mekacrc:6C3C703170EBD587 md5:69bf00297cad6ee0bb6046c8084e5e37 sha1:126654feb2975e3a52431d29cefcafbd37bb2ef5 sha256:1c221bcb0b7ef67e644a695b78cb4dd851b800202ee13fd8d03fb099e533c46a
32K part-10-columns-32k.gg crc32:7316423e mekacrc:1DE54704572F032A md5:bfcf0e46ec8df8a51776bd2315b859fc sha1:26d407e8389a5564b836f0a68585a935ca019802 sha256:73f6012c1a92bcc96497668cdecfb3b592162c6b39a8c7efb8b9dc3931380561
32K part-11-woody-pop-32k.gg crc32:0c6e4769 mekacrc:9D2A47DDDF12FD27 md5:3885c64be1dc990918adebcbe9675855 sha1:58516c23f1e1b87daebda1b971fab278a6e7ce59 sha256:0c23fccffa3160b6754fa54ecbf08d3828f5e60a64dbe4203109715644ad94ce
64K part-12-pac-man-64k.gg crc32:dd001845 mekacrc:730EF79FF63F971D md5:fa8940099182cb57dc7eaa3466f43859 sha1:7d4521b55386eb7f06fed6b143c0e97bdfab264b sha256:d5b2c6fc05041802db1e5506ba9df8edf5415bbfe7c5852620cdc5f8bbb261f9
128K part-14-ninja-gaiden-128k.gg crc32:7ca9e75e mekacrc:430F39097D9A3025 md5:d9201f5ced95468d893e0f1b24438eea sha1:86681e978b3c0088d077afe850f4f9d278f5fa30 sha256:dc574770c07c5fc58b9cac371ac16307166a000df9a4015d0a2286626c2e9a72
128K part-18-magical-taruruuto-kun-128k.gg crc32:11d11451 mekacrc:1062032CD75EE446 md5:04fc405128c80de8358903a2a3b967d9 sha1:96fa1d2a82e5d0ccc3f2b7b6f1c85a3e098d048a sha256:bbcb5abea2e18b8d9e4a852b32f0b65e6aea4556f3deb70540dccb91d01b3c1b
128K part-1c-super-monaco-gp-128k.gg crc32:08ebcea1 mekacrc:9D34492A4095AD3A md5:1737583c8a857c84798ff254167025d9 sha1:69ffd99a1589bb77ca9943cbf08e07996dd0e8da sha256:08f11a8927879b681e2b23c7f3bb103002dd5468b3a58e1d6cff7bc0789af4ed
256K part-20-the-gg-shinobi-ii-256k.gg crc32:1f8f7d7c mekacrc:5312EB420F84AA31 md5:735c85911371d3c8fb18c33093307718 sha1:68e2f2b58ecbd038a4c8a9d004f2b9dee8a3b88d sha256:545d4b460b486d29d9f42029e91896eef5b0331b6cb9ea86df0ccc5e42d27de5
256K part-28-bare-knuckle-256k.gg crc32:dacc9061 mekacrc:73DB350D2119AB8B md5:80257cab0a9ed965520beeaba5bd5c9f sha1:815a1c910d016d374fff02604b521f147f529291 sha256:a027321ec909bb69ca44486a8e04193915cf733c88974a7dbc7d8551841f4461
512K part-30-sonic-the-hedgehog-2-512k.gg crc32:cda97bb3 mekacrc:DB692161E347F020 md5:6685be3154439062030746a179589090 sha1:9bd6690330a35e6d3ad6c0230c9d8984a2e2de0c sha256:8c4b4207d8c6be2c5a9d9f1ab0d3df5c76d65ce9e26ae6c9e1c6b45babf3a9b7
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