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/**
* Copyright 2010 Brian Taylor
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef VM_H
#define VM_H
#include "types.h"
void vm_init(void);
void vm_add_roots(void);
void vm_boot(void);
void vm_init_environment(definer defn);
object *vm_execute(object *fn, object *stack, long stack_top, long n_args, object *genv);
void vector_push(object *stack, object *obj, long top);
object *vector_pop(object *stack, long top);
void vm_definer(char *sym, object *value);
#define VPUSH(obj, stack, top) \
do { \
vector_push(stack, obj, top); \
++top; \
} while(0)
#define VPOP(tgt, stack, top) \
do { \
tgt = vector_pop(stack, top); \
--top; \
} while(0)
#endif