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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 2520835..a87bfe1 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -23039,6 +23039,7 @@ information. * ARM Pragmas:: * M32C Pragmas:: * MeP Pragmas:: +* PRU Pragmas:: * RS/6000 and PowerPC Pragmas:: * S/390 Pragmas:: * Darwin Pragmas:: @@ -23190,6 +23191,26 @@ extern int foo (); @end table +@node PRU Pragmas +@subsection PRU Pragmas + +@table @code + +@item ctable_entry @var{index} @var{constant_address} +@cindex pragma, ctable_entry +Specifies that the PRU CTABLE entry given by @var{index} has the value +@var{constant_address}. This enables GCC to emit LBCO/SBCO instructions +when the load/store address is known and can be addressed with some CTABLE +entry. For example: + +@smallexample +/* will compile to "sbco Rx, 2, 0x10, 4" */ +#pragma ctable_entry 2 0x4802a000 +*(unsigned int *)0x4802a010 = val; +@end smallexample + +@end table + @node RS/6000 and PowerPC Pragmas @subsection RS/6000 and PowerPC Pragmas |