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SourceVuESP-IDF Framework and ExamplesFreeRTOSSTACKPTR_ALIGN_DOWN

STACKPTR_ALIGN_DOWN macro

Align stack pointer in a downward growing stack This macro is used to round a stack pointer downwards to the nearest n-byte boundary, where n is a power of 2. This macro is generally used when allocating aligned areas on a downward growing stack.

Syntax

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Summary

Declaration

from port.c:153

#define STACKPTR_ALIGN_DOWN(n, ptr) ((ptr) & (~((n)-1)))

Arguments

Argument

n

ptr

References

Code

Location

#define STACKPTR_ALIGN_DOWN(n, ptr) ((ptr) & (~((n)-1)))

uxStackPointer = STACKPTR_ALIGN_DOWN(16, uxStackPointer - XT_CP_SIZE);

uxStackPointer = STACKPTR_ALIGN_DOWN(16, uxStackPointer - (UBaseType_t)tls_area_size);

uxStackPointer = STACKPTR_ALIGN_DOWN(16, uxStackPointer - XT_STK_FRMSZ);

uxCoprocArea = STACKPTR_ALIGN_DOWN(16, uxCoprocArea - XT_CP_SIZE);