From JMD comes this Amstrad CPC emu for the DC, heres some of its features:

• Fullspeed with sound
  
• Support for the Dreamcast Keyboard
  
• Reads from amstrad disk format and zips
  
• Has auto program loading
  
• Screen Adjust
  
• Keys mappable
  
• Includes two games for the system
  
• Works in Chankast