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B.Rap Boys (World)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Serie
  12. Categories
  13. MAMEinfo
  14. History
Download brapboys.zip (12.13 MB)
Snapshot

Game infos

Description B.Rap Boys (World)
Name brapboys
Manufacturer Kaneko
Year 1992
Runnable yes
System arcade /
Number of players 3P sim
Added to MAME .116u4
Romset size 12.13 MB
Romset file 17 files
Romset zip 4 B
Language English
Evaluation 30 to 40 (Amendable)
Genre Fighter

Parent and clones

Parent This game is the parent

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 3
Input buttons
Input coins 3

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 256 224 59.1854

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade rb-000.u43 524288 58ad1a62 1d2643b5f6eac22682972a88d284e00de3e3b223 oki1 0 good no
arcade rb-001.u44 1048576 7cf774b3 3fb0a5096ce9480f97e311439042eb8cbc26efb4 oki2 0 good no
arcade rb-002.u45 1048576 e4b30444 be6756dce3721226e0b7f5d4d168008c31aeea8e oki2 100000 good no
arcade rb-003.00.u101 524288 2cac25d7 0412c317bf650a93051b9304d23035efde0c026a oki1 80000 good no
arcade rb-010.u65 1048576 ffd73f87 1a661f71976be61c22d9b962850e738ba17f1d45 gfx2 0 good no
arcade rb-011.u66 1048576 d9325f78 346832608664aa8f3ac9260a549903386b4125a8 gfx2 100000 good no
arcade rb-012.u67 1048576 bfdbe0d1 3abc5398ee8ee1871b4d081f9b748539d69bcdba gfx2 200000 good no
arcade rb-013.u68 1048576 28c37fe8 e10dd1a810983077328b44e6e33ce2e899c506d2 gfx2 300000 good no
arcade rb-020.u100 1048576 ce220d38 b88d7c89a3e1a826bf19a1fa692ec77c944596d9 gfx1 0 good no
arcade rb-021.u76 1048576 74001407 90002056ceb4e0401246950b8c3f996af0a2463c gfx1 100000 good no
arcade rb-022.u77 1048576 cb3f42dc 5415f15621924dd263b8fe7daaf3dc25d470b814 gfx1 200000 good no
arcade rb-023.u78 1048576 0e6530c5 72bff46f0672927e540f4f3546ae533dd0a231e0 gfx1 300000 good no
arcade rb-024.u79 524288 65fa6447 551e540d7bf412753b4a7098e25e6f9d8774bcf4 gfx1 400000 good no
arcade rb-025.01.u80 262144 36cd6b90 45c50f2652726ded67c9c24185a71a6367e09270 gfx1 500000 good no
arcade rb-030.01.u61 131072 ccbe9a53 b96baf0ecbf6550bfaf8e512d9275c53a3928bee maincpu 0 good no
arcade rb-031.01.u62 131072 c72b8dda 450e1fb8acb140fa0ab23630daad82924f7ce72b maincpu 1 good no
arcade rb-040.00.u33 131072 757c6e19 0f1c37b1b1eb6b230c593e4648c4302f413a61f5 calc3_rom 0 good no

Chips list

name tag type clock
M68000 maincpu cpu 12000000
OKI6295 oki2 audio 2000000
Speaker mono audio

Serie

Serie : DJ Boy
  1. DJ Boy (set 1) (1989)
  2. DJ Boy (set 2) (1989)
  3. DJ Boy (Japan) (1989)
  4. DJ Boy (Jpn) (1990)
  5. DJ Boy (Euro) (1991)
  6. B.Rap Boys (World) (1992)
  7. B.Rap Boys Special (Japan) (1992)
  8. B.Rap Boys Special (US) (1992)
  9. D.J. Boy (Rollergames pirate) (19??)

Categories

MAMEinfo

0.116u4 [Hammad, Brian Troha]

0.74u2 [Guru]

0.61 [Testdriver]


Bugs:

- brapboysj: [possible] You can see a big comma in black and something else written in black i cant read properly. hammad (ID 04459)


WIP:

- 0.177: Stop trashing memory in machine\kaneko_calc3.cpp. This fixed MAME crashed when exiting B.Rap Boys [O. Galibert].

- 0.146u5: Changed region cpu1 to calc3_rom.

- 0.144u5: hap fixed B.Rap Boys loops on CRC check.

- 0.144u1: vintagevideogames.com and Lord Nightmare added clone B.Rap Boys Special (US). Mirror gfx1 rom ($400000 to 480000) in B.Rap Boys. Fixed rom names.

- 0.143u9: Fixed rom names.

- 0.135: David Haywood changed sound banking on B.Rap Boys to use an OKIM6295 address map and banks. Changed region samples to oki1.

- 0.134u1: Kitsune Sniper, hap, Haze and Guru fixed music samples looping incorrectly / ending too soon in B.Rap Boys and clone. Changed clock speeds of the 2x OKI6295 to 2MHz and VSync to 59.185400 Hz.

- 0.133u5: David Haywood temporarily added a hack to the collision function to only use the B.Rap Boys code if the game is B.Rap Boys until we have a single function that works with both.

- 0.133u4: David Haywood, Tomasz Slanina and Luca Elia fixed - Game now playable. Phil Bennett fixed B.Rap Boys sound banking. David Haywood and Tomasz Slanina decoded all protection data for B.Rap Boys. Tomasz Slanina improved protection simulation logic w/regards to writeback addresses, allowing B.Rap Boys to boot and added hitbox simulation based on suprnova / game requirements. Guru redumped GFX Roms. David Haywood cleaned up decryption function for B.Rap Boys external Rom, improved video emulation for B.Rap Boys, marked several GFX roms as bad on B.Rap Boys, converted MCU writes to use write_byte, added kludge to reset MCU data write address to prevent game from running out of ram and crashing, added DSWs, added EEPROM support to the B.Rap Boys protection simulation and changed to priorities to fix some visibility problems. Added new gfx1 roms ($0, 100000, 200000, 300000). Changed visible area to 256x224. Added dipswitches 'Switch Test', 'Coin Slots', 'Players', 'Difficulty' and 'Unused'.

- 0.133u3: David Haywood decrypted several tables from the B.Rap Boys rom.

- 0.133u1: Calc 3 MCU update [David Haywood]: Shuffled a few things around based on new findings. Added an extra decryption table used for the Brap Boys startup code (still doesn't do anything interesting). Noted that one of the unknown parameters for the MCU Init command is where it reads / writes EEPROM data from. Noted that an additional parameter in the MCU commands may cause further displacement of the writeback address, as BRap Boys seems to rely on this (needs further testing) - added a hack for now so that BRap Boys places the writeback address of the initial table somewhere that causes it to get executed. Renamed (brapboyj) to (brapboysj).

- 0.132u5: Added button 4. Changed visible area to 256x240. Changed description of clone (Japan) to 'B.Rap Boys Special (Japan)'.

- 0.132u2: David Haywood improved protection simulation for B.Rap Boys, eliminating the hardcoded table with the initial program snippet in, getting it from the rom instead, and generally cleaning things up.

- 0.132u1: David Haywood improved protection simulation and documentation for B.Rap Boys.

- 0.128u1: Guru added redumped B.Rap Boys sample ROMs.

- 0.116u4: Hammad and Brian Troha added B.Rap Boys (World). Renamed (brapboys) to (brapboyj).

- 28th June 2007: Hammad dumped B.Rap Boys (World). Only socketed EPROMs have been dumped, the rest are soldered MASKROMs.

- 0.112u3: Changed description to 'B.Rap Boys (Japan)'.

- 0.74u2: Added 'B.Rap Boys' (Kaneko 1992).

- 0.61: Added (Testdriver) B.Rap Boys.

- 26th August 2001: Guru - Dumped B.Rap Boys (Kaneko 1992). Thanks to Felicien for the donation.

- 18th August 2001: Guru - A 'B. Rap Boys' PCB has arrived, however Australian Customs has grabbed it and is holding me to ransom. I'm working on that, and hopefully I'll get it next week.


Other Emulators:

* FB Alpha


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History


Arcade Video game published 27 years ago:

B.Rap Boys (c) 1992 Kaneko Company, Limited.

A side scrolling beat'em up. 3 characters, one on a skateboard, one on a bike and one on rollerskates fight various enemies. Features a large amount of sampled voices and several rap songs.

- TECHNICAL -

Main PCB # : ZO1DK-002
ROM PCB # : ZO1DK-EXROM

Main CPU : Motorola 68000 (@ 12 Mhz)
Sound Chips : (2x) OKI6295 (@ 12 Khz)

Players : 2
Control : 8-way joystick
Buttons : 2

- TRIVIA -

B.Rap Boys was released in June 1992.

- SERIES -

1. DJ Boy (1989)
2. B.Rap Boys (1992)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=161&o=2