A51: Specifying Which Register Banks Are Used

Information in this article applies to:

• C51 Version 5.50a and later

QUESTION

How do I specify the register banks that I've used in my assembler files?

ANSWER

The REGISTERBANK assembler directive allows you to specify which register banks are used. For example:

a51 mycode.a51 REGISTERBANK(2)

This tells the linker that you've used register bank 2 in your assembler module. The linker reserved register bank 2 and doesn't use that memory area for general purpose memory.

MORE INFORMATION

• Refer to REGISTERBANK in the Ax51 User's Guide.

Last Reviewed: Thursday, February 25, 2021