`codedump` to display `OP_CALL`.
MODIFY
src/codedump.c
src/codedump.c
@@ -207,6 +207,9 @@ codedump(mrb_state *mrb, mrb_irep *irep)
mrb_sym2name(mrb, irep->syms[GETARG_B(c)]),
GETARG_C(c));
break;
+ case OP_CALL:
+ printf("OP_CALL\tR%d\n", GETARG_A(c));
+ break;
case OP_TAILCALL:
printf("OP_TAILCALL\tR%d\t:%s\t%d\n", GETARG_A(c),
mrb_sym2name(mrb, irep->syms[GETARG_B(c)]),

`codedump` to display `OP_CALL`.