28.2.113 __builtin_sac

Architecture

dsPIC33C/E/F, dsPIC30

Description

Shifts a value by shift and returns the value. For example:

 volatile register int16_t value asm("A");
 int32_t result;

 result = __builtin_sac(value,3);

Prototype

int32_t __builtin_sac(int16_t value, int16_t shift);

Arguments

value – Integer number to be shifted.

shift – Literal amount to shift between -8 and 7

Return Value

Returns the shifted result.

Machine Instruction

sac

Error Messages

An error message will be displayed if: the result is not an accumulator register the shift value is not a literal within range