28.2.67 __builtin_lacd

Architecture

dsPIC33C/E/F, dsPIC30

Description

Shifts a value by shift and returns the value to be stored into the accumulator register. For example:

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

 result = __builtin_lacd(value,3);

Prototype

int16_t __builtin_lacd(int32_t value, uint16_t shift);

Arguments

value – Long integer number to be shifted.

shift – Literal amount to shift between -16 and 15.

Return Value

Returns the shifted result to an accumulator.

Machine Instruction

lac

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