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Technical Support Support Resources
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C51: Inline AssemblyInformation in this article applies to:
QUESTIONI'm currently working on an interrupt service routine that has a challenging timing requirement. After compiling the routine and looking at the assembly listing I noticed that the compiler chose a different CJNE instruction than I would have. I was wondering if there was an easy way to modify the assembled code by changing a few of the assembly lines without having to re-write the whole routine in assembly? ANSWERYou can write your code in C, then use the SRC directive to have the compiler generate an assembly module for your C code. You may modify the generated assembly file and include that in your project. Note that once you modify this file, you should not regenerate it with the C file because that would overwrite your changes. MORE INFORMATIONLast Reviewed: Thursday, February 25, 2021 | ||||||||||
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