reqstack          806 src/vm.c                       int reqstack = SCM_VM_INSN_ARG(code);
reqstack          807 src/vm.c                       CHECK_STACK(reqstack);
reqstack         2699 src/vm.c           int reqstack;
reqstack         2703 src/vm.c           reqstack = ENV_SIZE(numargs) + 1;
reqstack         2704 src/vm.c           if (reqstack >= SCM_VM_STACK_SIZE) {
reqstack         2708 src/vm.c           CHECK_STACK(reqstack);