diff options
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/as.texinfo | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo index 1d9ae0c..2b3e4c2 100644 --- a/gas/doc/as.texinfo +++ b/gas/doc/as.texinfo @@ -3119,7 +3119,9 @@ provides a special directive @code{.label} for defining labels more flexibly. A symbol can be given an arbitrary value by writing a symbol, followed by an equals sign @samp{=}, followed by an expression (@pxref{Expressions}). This is equivalent to using the @code{.set} -directive. @xref{Set,,@code{.set}}. +directive. @xref{Set,,@code{.set}}. In the same way, using a double +equals sign @samp{=}@samp{=} here represents an equivalent of the +@code{.eqv} directive. @xref{Eqv,,@code{.eqv}}. @node Symbol Names @section Symbol Names @@ -3716,6 +3718,7 @@ Some machine configurations provide additional directives. * Endif:: @code{.endif} * Equ:: @code{.equ @var{symbol}, @var{expression}} * Equiv:: @code{.equiv @var{symbol}, @var{expression}} +* Eqv:: @code{.eqv @var{symbol}, @var{expression}} * Err:: @code{.err} * Error:: @code{.error @var{string}} * Exitm:: @code{.exitm} @@ -4283,6 +4286,15 @@ Except for the contents of the error message, this is roughly equivalent to .endif .equ SYM,VAL @end smallexample +plus it protects the symbol from later redefinition. + +@node Eqv +@section @code{.eqv @var{symbol}, @var{expression}} +@cindex @code{eqv} directive +The @code{.eqv} directive is like @code{.equiv}, but no attempt is made to +evaluate the expression or any part of it immediately. Instead each time +the resulting symbol is used in an expression, a snapshot of its current +value is taken. @node Err @section @code{.err} |