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Compiler-specific Features
4.7.29 __ror
This intrinsic inserts a ROR instruction or operand rotation into the instruction stream
generated by the compiler. It enables you to rotate a value right by a specified number
of places from within your C or C++ code.
Note
The compiler introduces ROR automatically when it recognizes certain expressions.
Syntax
unsigned int __ror(unsigned int val, unsigned int shift)
Where:
val is the value to be shifted right
shift is a constant shift in the range 1-31.
Return value
The __ror intrinsic returns the value of val rotated right by shift number of places.
See also
• ASR, LSL, LSR, ROR, and RRX on page 4-67 in the Assembler Guide.
4.7.30 __schedule_barrier
This intrinsic creates a sequence point where operations before and operations after the
sequence point are not merged by the compiler. A scheduling barrier does not cause
memory to be updated. If variables are held in registers they are updated in place, and
not written out.
This intrinsic is similar to the __nop intrinsic, except that no NOP instruction is generated.
Syntax
void __schedule_barrier(void)
See also
• __nop on page 4-89
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