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_SubSatInt

  • Article

9/7/2007

This ARM DSP-enhanced operation performs a saturating subtract instruction. It subtracts the value in Rn from the value in Rm, and places the result in register Rd. This operation affects the sticky-overflow bit 'Q' if overflow occurs in the subtraction.

Syntax

int _SubSatInt(
  int Arg1,
  int Arg2
);

Parameters

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

Return Values

The result of the binary arithmetic.

Remarks

The compiler translates this intrinsic into the qsub assembly instruction.

Requirements

Routine Required header Architecture

_SubSatInt

<armintr.h>

ARM10, ARM-DSP

See Also

Reference

ARM DSP-enhanced Intrinsic Functions
_AddSatInt