Is it possible? ASM pic16F873 to C pic18F2620

[ljbeng]

I have an assembly language program written in Tech-Tools ASM for the 16F873 (8051-like instructions). I can disassemble the hex file into microchip assembly using CCS Disassembler Tool. Can I take that raw assembly code and recompile using CCS to make the program work in the 18F2620? Without completely rewriting the program in C? What other options do I have? Why?... You ask.... The technicians have hundreds of the 2620 chip and they want to get rid of the 873 chips.


Thanks.

[Ttelmah]

Simple answer. No.
At the very least, you would have to change every reference to every internal register in the PIC, and many of the bit definitions inside these. With this done, you might be about 75% of the way there, using normal assembler, but the CCS assembler has non standard syntax for many instructions, so would add further problems.

Best Wishes

[carmarmu]

It´s impossible.
Friend...you will have to return to write code.