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This intrinsic inserts a QSUB instruction or an equivalent code
sequence into the instruction stream generated by the compiler.
It enables you to obtain the saturating subtraction of two integers
from within your C or C++ code.
int __qsub(intval1, intval2)
Where:
val1is the minuend of the saturating subtraction operation
val2is the subtrahend of the saturating subtraction operation.
QADD, QSUB, QDADD, and QDSUB in the Assembler Guide.
| Copyright © 2007, 2010 ARM Limited. All rights reserved. | ARM DUI 0348A |
| Non-Confidential | |
| PDF version | |
| Home > Compiler-specific Features > Instruction intrinsics > __qsub |