~~NOTRANS~~

====== BBC Micro Model B [bbcb] ======

**Acorn, 1981**

Driver: [[mess:drivers:bbc|bbc.c]] \\
Clone of: [[mess:drivers:bbc:bbca|bbca]]

===== Status =====

  * Emulation: Good
  * Color: Good
  * Sound: Good
  * Graphics: Good
  * Save State: Unsupported

===== Technical Info =====

==== CPUs ====

^ Type ^ Name ^ Clock ^
|  ''CPU'' |  ''M6502'' |  ''2 MHz'' |
|  ''AUDIO'' |  ''SN76489'' |  ''4 MHz'' |

==== Display ====

  * 800x300 at 50 Hz (Raster, no rotation)

==== Sound ====

  * Channels: 1

==== Inputs ====

  * Players: 2, Buttons: 2
    * stick

==== ROMs ====

^ Name ^ Size ^ CRC32 ^ SHA1 ^ Region ^ Offset ^
|  ''os12.rom'' |  ''16384'' |  ''3c14fc70'' |  ''0d9bcaf6a393c9ce2359ed700ddb53c232c2c45d'' |  ''USER1'' |  ''40000'' |
|  ''basic2.rom'' |  ''16384'' |  ''79434781'' |  ''4a7393f3a45ea309f744441c16723e2ef447a281'' |  ''USER1'' |  ''0'' |
|  ''dfs09.rom'' |  ''8192'' |  ''3ce609cf'' |  ''5cc0f14b8f46855c70eaa653cca4ad079b458732'' |  ''USER2'' |  ''0'' |
|  ''dnfs.rom'' |  ''16384'' |  ''8ccd2157'' |  ''7e3c536baeae84d6498a14e8405319e01ee78232'' |  ''USER2'' |  ''4000'' |
|  ''dfs144.rom'' |  ''16384'' |  ''9fb8d13f'' |  ''387d2468c6e1360f5b531784ce95d5f71a50c2b5'' |  ''USER2'' |  ''8000'' |
|  ''zdfs-0.90.rom'' |  ''8192'' |  ''ea579d4d'' |  ''59ad2a8994f4bddad6687891f1a2bc29f2fd32b8'' |  ''USER2'' |  ''c000'' |
|  ''ddfs223.rom'' |  ''16384'' |  ''7891f9b7'' |  ''0d7ed0b0b3852cb61970ada1993244f2896896aa'' |  ''USER2'' |  ''10000'' |
|  ''ddfs-1.53.rom'' |  ''16384'' |  ''e1be4ee4'' |  ''6719dc958f2631e6dc8f045429797b289bfe649a'' |  ''USER2'' |  ''14000'' |
|  ''ch103.rom'' |  ''16384'' |  ''98367cf4'' |  ''eca3631aa420691f96b72bfdf2e9c2b613e1bf33'' |  ''USER2'' |  ''18000'' |

==== Devices ====

^ Name ^ Instances ^ Extensions ^
| Cartridge | cart1, cart2, cart3, cart4 | rom |
| Floppydisk | flop1, flop2 | ssd, bbc, img |
| Cassette | cass | wav, csw, uef |
| Printer | prin | prn |

===== Screenshots =====

{{gallery>mess:drivers:bbc:bbcb?0}}

{{tag>system bbcb acorn 1981 m6502 sn76489 cartridge floppydisk cassette printer}}