How do I 'tell' the toolset (not using uVision but .BAT) to address all 23 bits without invoking bankswitching or other such slowdowns? Erik
Does ROM(HUGE) automatically make the compiler compile in "MX mode". I guess I think there must be a compiler switch other than ROM/RAM size to tell the compiler to use the MX mode. Erik
For the MX, you must use CX51.EXE. The MX is a different instruction set and requires a different compiler. The CX51.EXE only compiles in MX mode. The C51.EXE NEVER compiles in MX mode (only in 8051 mode). Jon