27C020 HEX File

[Guest]

I am having a problem with checksum on HEX code from US. The code must be offset to 0C000 for use. So, I fill memory with FF (00000-3FFFF), then send HEX file to S4, then MOVE 00000-3FFFF,0C000. Does not work. Can anyone help? Many thanks in advance!

Mike Freeman

[Dataman (Neil Parker)]

Hi,

Try this method.
1. FILL 00000-3FFFF
2. Send HEX to S4
3. MOVE <file-start-adr>,<file-start-adr+0xbfff>,0C000
It is even possible that your file loads to address 0, so then
just MOVE 00000,0BFFF,0C000

Neil

[Guest]

Neil: Thanks for the help, but I still cannot get the correct checksum. It is bothersome knowing the S4 works, but that I just can not use the HEX code. Thanks again and I will just keep fiddling with it.

Mike Freeman