* MIPS DSP Built-in Functions::
* MIPS Paired-Single Support::
* MIPS Loongson Built-in Functions::
+* picoChip Built-in Functions::
* PowerPC AltiVec Built-in Functions::
* SPARC VIS Built-in Functions::
* SPU Built-in Functions::
@end smallexample
@end table
+@node picoChip Built-in Functions
+@subsection picoChip Built-in Functions
+
+GCC provides an interface to selected machine instructions from the
+picoChip instruction set.
+
+@table @code
+@item int __builtin_sbc (int @var{value})
+Sign bit count. Return the number of consecutive bits in @var{value}
+which have the same value as the sign-bit. The result is the number of
+leading sign bits minus one, giving the number of redundant sign bits in
+@var{value}.
+
+@item int __builtin_byteswap (int @var{value})
+Byte swap. Return the result of swapping the upper and lower bytes of
+@var{value}.
+
+@item int __builtin_brev (int @var{value})
+Bit reversal. Return the result of reversing the bits in
+@var{value}. Bit 15 is swapped with bit 0, bit 14 is swapped with bit 1,
+and so on.
+
+@item int __builtin_adds (int @var{x}, int @var{y})
+Saturating addition. Return the result of adding @var{x} and @var{y},
+storing the value 32767 if the result overflows.
+
+@item int __builtin_subs (int @var{x}, int @var{y})
+Saturating subtraction. Return the result of subtracting @var{y} from
+@var{x}, storing the value -32768 if the result overflows.
+
+@item void __builtin_halt (void)
+Halt. The processor will stop execution. This built-in is useful for
+implementing assertions.
+
+@end table
+
@node PowerPC AltiVec Built-in Functions
@subsection PowerPC AltiVec Built-in Functions
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