[previous] MISRA-C:2004  Rule  2.1:  (Required) [next] Assembly language shall be encapsulated and isolated.
Where assembly language instructions are required it is recommended that they be encapsulated and isolated in either (a) assembler functions, (b) C functions or (c) macros. For reasons of efficiency it is sometimes necessary to embed simple assembly language instructions in-line, for example to enable and disable interrupts. If it is necessary to do this for any reason, then it is recommended that it be achieved by using macros.

Note that the use of in-line assembly language is an extension to standard C, and therefore also requires a deviation against Rule . 

#define NOP asm( "    NOP" )

QAC messages that encompass this guideline:

3006 This function contains a mixture of in-line assembler statements and C statements.


(c) The Motor Industry Research Association, 2004
QA C Source Code Analyser 8.1.2
MISRA-C:2004 Compliance Module 3.2
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