for all you could want to know and a great tutorial, go to http://www.8052.com

Any 8051 assembler will work fine for coding. Sysrad51, available here seems popular. Be careful when re-assembling a file after making changes to it... Sysrad seems to have some odd bugs in this regard.

Batronix Prog Studio seems fairly popular too.

ASEM-51 seems interesting. It has a couple companion IDEs, MIDE and 4Flash. Blundar's preferred development environment is now MIDE+ASEM-51. Note: make sure you have a colon ":" after all labels - ASEM51 is much pickier than SYSRAD.

Dave Blundell modified d51 to support Oki's non-standard use of A5 by creating Pgmfi D51. Chris Favreau compiled some windows binaries for it. You can download the source and linux/win binaries here.

This looks like an interesting 8051 sim

Some 8051 resources:

• Compact lil ref guide
• Another compact ref
• jEdit - jEdit 4.2pre8 and higher includes a MCS51 syntax highlighting Edit Mode definition for 8051 assembly editing

Attachment?:	Modify:	Size:	Date:	Who:	Comment:
RAD51.exe	mod	5891853	20 Jul 2004 - 04:21	blundar	Copy of Sysrad51 as of 7/18/04 locally