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BL51: NOJMPTAB DIRECTIVE


Information in this article applies to:

  • C51 Version 6.01

QUESTION

What does the NOJMPTAB directive do?

ANSWER

Use the NOJMPTAB directive (abbreviated NOJT) to direct the BL51 code banking linker/locator not to insert the inter-bank call table used for code banking. This directive is provided to enable you to create your own user-defined bank switching mechanism.

The NOJMPTAB directive modifies the behavior of BL51 as follows:

  • The L51_BANK.OBJ banking logic is no longer required.
  • Call instructions are not modified to jump to the call table.
  • Warnings are not generated if a jump or call is made to another bank.

When you use NOJMPTAB, you must ensure that the proper bank is selected before you invoke a function in that bank. The BL51 code banking linker does not select the bank automatically.

MORE INFORMATION

  • Refer to NOJMPTAB in the BL51 User's Guide.

SEE ALSO

Last Reviewed: Friday, July 15, 2005


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