diff options
Diffstat (limited to 'opcode.pl')
| -rwxr-xr-x | opcode.pl | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -364,6 +364,37 @@ __END__ # New ops always go at the very end +# A recapitulation of the format of this file: +# The file consists of five columns: the name of the op, an English +# description, the name of the "check" routine used to optimize this +# operation, some flags, and a description of the operands. + +# The flags consist of options followed by a mandatory op class signifier + +# The classes are: +# baseop - 0 unop - 1 binop - 2 +# logop - | listop - @ pmop - / +# padop/svop - $ padop - # (unused) loop - { +# baseop/unop - % loopexop - } filestatop - - +# pvop/svop - " + +# Other options are: +# needs stack mark - m +# needs constant folding - f +# produces a scalar - s +# produces an integer - i +# needs a target - t +# target can be in a pad - T +# has a corresponding integer version - I +# has side effects - d +# uses $_ if no argument given - u + +# Values for the operands are: +# scalar - S list - L array - A +# hash - H sub (CV) - C file - F +# socket - Fs filetest - F- reference - R +# "?" denotes an optional operand. + # Nothing. null null operation ck_null 0 |