AST_PLUS          555 core/compile.c     case AST_PLUS: case AST_MINUS: case AST_TIMES: case AST_DIV:
AST_PLUS          567 core/compile.c         case AST_PLUS:  PN_ASM2(OP_ADD, reg, reg + 1);  break;
AST_PLUS           83 core/syntax.y         | plus assign s:sets  { e = PN_AST2(ASSIGN, e, PN_OP(AST_PLUS, e, s)) }
AST_PLUS          119 core/syntax.y        ( plus x:product      { p = PN_OP(AST_PLUS, p, x) }
AST_PLUS          136 core/syntax.y         | plus !plus a:atom    { a = PN_OP(AST_PLUS, PN_AST(VALUE, PN_ZERO), a) }