~~NOTRANS~~

====== Mega ST [megast] ======

**Atari, 1987**

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

===== Status =====

  * Emulation: Preliminary
  * Color: Good
  * Sound: Good
  * Graphics: Good
  * Save State: Supported

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

==== CPUs ====

^ Type ^ Name ^ Clock ^
|  ''CPU'' |  ''68000'' |  ''8.021247 MHz'' |
|  ''CPU'' |  ''HD63701'' |  ''4 MHz'' |
|  ''AUDIO'' |  ''YM2149'' |  ''2.005311 MHz'' |

==== Display ====

  * 512x312 at 49.664704 Hz (Raster, no rotation)

==== Sound ====

  * Channels: 1

==== Inputs ====

  * Players: 2, Buttons: 2
    * joy8way

==== RAM Sizes ====

  * 4194304 bytes
  * 2097152 bytes
  * 1048576 bytes

==== BIOS Sets ====

^ Name ^ Description ^ Default ^
|  ''default'' | TOS 1.04 (Rainbow TOS) | yes |
|  ''tos102'' | TOS 1.02 (MEGA TOS) | no |

==== ROMs ====

^ Name ^ BIOS ^ Size ^ CRC32 ^ SHA1 ^ Region ^ Offset ^
|  ''tos104.img'' |  ''default'' |  ''196608'' |  ''a50d1d43'' |  ''9526ef63b9cb1d2a7109e278547ae78a5c1db6c6'' |  ''CPU1'' |  ''fc0000'' |
|  ''tos102.img'' |  ''tos102'' |  ''196608'' |  ''3b5cd0c5'' |  ''87900a40a890fdf03bd08be6c60cc645855cbce5'' |  ''CPU1'' |  ''fc0000'' |
|  ''keyboard.u1'' |  '''' |  ''4096'' |  ''0296915d'' |  ''1102f20d38f333234041c13687d82528b7cde2e1'' |  ''CPU2'' |  ''f000'' |

==== Devices ====

^ Name ^ Instances ^ Extensions ^
| Printer | prin | prn |
| Floppydisk | flop1 | st |
| Floppydisk | flop2 | st |
| Serial | serl | txt |
| Cartridge | cart | stc |

===== Screenshots =====

{{gallery>mess:drivers:atarist:megast?0}}

{{tag>system megast atari 1987 68000 hd63701 ym2149 printer floppydisk floppydisk serial cartridge}}