How to make a custom HP-41 rom for the rest of us

[Monte Dalrymple]

Gene,

I included functions in the 4CL Extra Functions to help with this if you want to do it on the machine itself. Look at the Memory Buffer functions. They allow you to assemble chunks of code in the Extra Functions buffer area in RAM without having to worry about the destination address (it's stored in an internal pointer.) This works if you're just assembling routines that don't share common subroutines, and probably isn't the best for what I think you want.

I would probably disassemble (on a PC) the modules you want to gather stuff from and then figure out where all the code is and gather it together in a new file. Build the FAT, run it through the assembler and hope everything fits.

Or you could just ask 'Angel...