osd-contiki/examples/osd/embedd-vm-merkurboard/embedvm.h
2014-04-15 07:27:30 +02:00

54 lines
1.6 KiB
C

/*
* EmbedVM - Embedded Virtual Machine for uC Applications
*
* Copyright (C) 2011 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef EMBEDVM_H
#define EMBEDVM_H
#include <stdint.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
struct embedvm_s
{
uint16_t ip, sp, sfp;
void *user_ctx;
int16_t (*mem_read)(uint16_t addr, bool is16bit, void *ctx);
void (*mem_write)(uint16_t addr, int16_t value, bool is16bit, void *ctx);
int16_t (*call_user)(uint8_t funcid, uint8_t argc, int16_t *argv, void *ctx);
};
extern void embedvm_exec(struct embedvm_s *vm);
extern void embedvm_interrupt(struct embedvm_s *vm, uint16_t addr);
int16_t embedvm_pop(struct embedvm_s *vm);
void embedvm_push(struct embedvm_s *vm, int16_t value);
int16_t embedvm_local_read(struct embedvm_s *vm, int8_t sfa);
void embedvm_local_write(struct embedvm_s *vm, int8_t sfa, int16_t value);
#ifdef __cplusplus
}
#endif
#endif