/* This file is part of GNU epsilon, a functional language implementation

Copyright (C) 2003 Luca Saiu

GNU epsilon is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.

GNU epsilon is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with epsilon; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */


/* Code for the s_jnm instruction */

/* This instruction is used in the compilation of pattern-matching.
   s_jnm X L: is equivalent to 
        cpy             # keep a copy for the next case
        s_lkp_i 0       # look at the constructor;
        pshci   x       # does it match with the x-th case?
        s_eqi
        s_jz    L:
   Note that this instruction is not destructive (it does not pop its stack
   argument) */

if(((word_t*)top)[0] != PARAMETER_1)
  GOTO_IMMEDIATE(LABEL_PARAMETER);
