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_SmulAddWLo_SW_SL

  • Article

9/7/2007

This ARM DSP-enhanced, signed integer multiply-accumulate operation multiplies Rm with the bottom 16 bits of Rs; then it accumulates in Rn. The operation adds the upper 32 bits of the 48-bit product to the 32-bit Rn.

Syntax

int _SmulAddWLo_SW_SL(
  int Arg1, 
  int Arg2
);

Parameters

  • Arg1
    [in] The contents of Rm, the first term in the product.
  • Arg2
    [in] The contents of Rs, the second term in the product.

Return Values

The integer result of the multiplication and accumulation.

Remarks

The compiler translates this instruction into the smlawb assembly instruction.

Requirements

Routine Required header Architecture

_SmulAddW_SW_SL

<armintr.h>

ARM10, ARM-DSP

See Also

Reference

ARM DSP-enhanced Intrinsic Functions
_SmulAddWHi_SW_SL