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Inline assembler intermediate operands in C and C++ code

A C or C++ constant expression of an integral type might be used as an immediate value in an inline assembly language instruction.

A constant expression that specifies an immediate shift must have a value that lies in the range defined in the ARM Architecture Reference Manual, as appropriate for the shift operation.

A constant expression that specifies an immediate offset for a memory or coprocessor data transfer instruction must have a value with suitable alignment.