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Re: [PATCH] doc: add pdp11 machine constraints
On Nov 4, 2010, at 8:45 PM, Joseph S. Myers wrote:
> On Thu, 4 Nov 2010, Paul Koning wrote:
>
>> +Odd numbered general registers (R1, R3, R5). These are used for 16
>> +bit multiply operations.
>
> "16-bit", with a hyphen.
>
>> +@item M
>> +The integer constant -1.
>
> @minus{}1.
>
>> +Integer constants -4 through -1 and 1 through 4; shifts by these
>
> Likewise, @minus{}4 and @minus{1}.
Thanks! Done.
paul
ChangeLog:
2010-11-04 Paul Koning <ni1d@arrl.net>
* doc/md.texi (Machine Constraints): Correct formatting in PDP-11
constraints.
Index: doc/md.texi
===================================================================
--- doc/md.texi (revision 166335)
+++ doc/md.texi (working copy)
@@ -2928,8 +2928,8 @@
memory with a single instruction.
@item d
-Odd numbered general registers (R1, R3, R5). These are used for 16
-bit multiply operations.
+Odd numbered general registers (R1, R3, R5). These are used for
+16-bit multiply operations.
@item f
Any of the floating point registers (AC0 through AC5).
@@ -2951,13 +2951,13 @@
The integer constant 1.
@item M
-The integer constant -1.
+The integer constant @minus{}1.
@item N
The integer constant 0.
@item O
-Integer constants -4 through -1 and 1 through 4; shifts by these
+Integer constants @minus{}4 through @minus{}1 and 1 through 4; shifts by these
amounts are handled as multiple single-bit shifts rather than a single
variable-length shift.