diff options
Diffstat (limited to 'doc/ref/vm.texi')
| -rw-r--r-- | doc/ref/vm.texi | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/doc/ref/vm.texi b/doc/ref/vm.texi index 49b420c50..8d7778c1c 100644 --- a/doc/ref/vm.texi +++ b/doc/ref/vm.texi @@ -417,6 +417,7 @@ external variables are all consed onto a list, which results in O(N) lookup time. @deffn Instruction toplevel-ref index +@deffnx Instruction long-toplevel-ref index Push the value of the toplevel binding whose location is stored in at position @var{index} in the object table. @@ -441,14 +442,19 @@ in-place mutation of the object table. This mechanism provides for lazy variable resolution, and an important cached fast-path once the variable has been successfully resolved. +The ``long'' variant has a 16-bit index instead of an 8-bit index, +with the most significant byte first. + This instruction pushes the value of the variable onto the stack. @end deffn -@deffn Instruction toplevel-ref index +@deffn Instruction toplevel-set index +@deffnx Instruction long-toplevel-set index Pop a value off the stack, and set it as the value of the toplevel variable stored at @var{index} in the object table. If the variable has not yet been looked up, we do the lookup as in -@code{toplevel-ref}. +@code{toplevel-ref}. The ``long'' variant has a 16-bit index instead +of an 8-bit index. @end deffn @deffn Instruction link-now @@ -471,7 +477,9 @@ the variable to the value. @end deffn @deffn Instruction object-ref n -Push @var{n}th value from the current program's object vector. +@deffnx Instruction long-object-ref n +Push @var{n}th value from the current program's object vector. The +``long'' variant has a 16-bit index instead of an 8-bit index. @end deffn @node Branch Instructions |