コード例 #1
0
ファイル: shell.c プロジェクト: powertang/yard-ice
int cmd_run(FILE * f, int argc, char ** argv)
{
	struct microjs_vm vm; 
	struct microjs_rt rt;
	int32_t stack[16]; /* local stack */
	uint8_t * code;
	int ret;

	if (argc < 3)
		return SHELL_ERR_ARG_MISSING;

	if (argc > 3)
		return SHELL_ERR_EXTRA_ARGS;

	DCC_LOG(LOG_TRACE, "db_js_lookup()...");

	if ((code = db_js_lookup(argv[1], argv[2])) == NULL)
		return SHELL_ERR_ARG_INVALID;

	DCC_LOG1(LOG_TRACE, "code=%08x.", code);

	rt.data_sz = sizeof(slcdev_vm_data);
	rt.stack_sz = sizeof(stack);

	/* initialize virtual machine instance */
	microjs_vm_init(&vm, &rt, NULL, slcdev_vm_data, stack);

	DCC_LOG(LOG_TRACE, "microjs_exec...");

	if ((ret = microjs_exec(&vm, code, 4096)) != 0) {
		fprintf(f, "# exec error: %d\n", ret);
		return -1;
	}

	fprintf(f, "\n");

	return 0;
}
コード例 #2
0
ファイル: shell.c プロジェクト: powertang/yard-ice
int js(FILE * f, char * script, unsigned int len)
{
	struct symtab * symtab = (struct symtab *)slcdev_symbuf; /* symbols */
	uint8_t code[512]; /* compiled code */
	uint32_t sdtbuf[64]; /* compiler buffer */
	int32_t stack[16]; /* exec stack */
	struct microjs_sdt * microjs; 
	struct microjs_rt * rt;
	struct microjs_vm vm; 
	struct symstat symstat;
	uint32_t start_clk;
	uint32_t stop_clk;
	int code_sz;
	int ret;

	profclk_init();

	/* initialize compiler */
	if ((microjs = microjs_sdt_init(sdtbuf, sizeof(sdtbuf), 
									symtab, &slcdev_lib)) == NULL) {
		fprintf(f, "# internal error\n");
		return -1;
	}

	symstat = symtab_state_save(symtab);

	microjs_sdt_begin(microjs, code, sizeof(code));

	start_clk = profclk_get();
	if ((ret = microjs_compile(microjs, script, len)) < 0) {
		symtab_state_rollback(symtab, symstat);
		fprintf(f, "# compile error: %d\n", -ret);
		DCC_LOG1(LOG_WARNING, "compile error: %d", ret);
		microjs_sdt_error(f, microjs, ret);
		DCC_LOG(LOG_TRACE, "...");
		return -1;
	}

	if ((ret = microjs_sdt_end(microjs)) < 0) {
		symtab_state_rollback(symtab, symstat);
		fprintf(f, "# compile error: %d\n", -ret);
		DCC_LOG1(LOG_WARNING, "compile error: %d", ret);
		microjs_sdt_error(f, microjs, ret);
		DCC_LOG(LOG_TRACE, "...");
		return -1;
	}

	stop_clk = profclk_get();

	code_sz = ret;
	rt = symtab_rt_get(symtab);
	if (SLCDEV_VERBOSE()) {
		fprintf(f, " - Compile time: %d us.\n", 
				profclk_us(stop_clk - start_clk));
		fprintf(f, " - code: %d\n", code_sz);
		fprintf(f, " - data: %d of %d\n", rt->data_sz, sizeof(slcdev_vm_data));
		fprintf(f, " - stack: %d of %d\n", rt->stack_sz, sizeof(stack));
	}

	if (rt->data_sz > sizeof(slcdev_vm_data)) {
		fprintf(f, "# data overlow. %d bytes required\n", rt->data_sz);
		return -1;
	}

	if (rt->stack_sz > sizeof(stack)) {
		fprintf(f, "# stack overflow. %d bytes required\n", rt->stack_sz);
		return -1;
	}

#if MICROJS_TRACE_ENABLED
	microjs_vm_tracef = f;
#endif

	/* initialize virtual machine instance */
	microjs_vm_init(&vm, rt, NULL, slcdev_vm_data, stack);

	start_clk = profclk_get();
	if ((ret = microjs_exec(&vm, code)) != 0){
		fprintf(f, "# exec error: %d\n", ret);
		return -1;
	}

	if (SLCDEV_VERBOSE()) {
		stop_clk = profclk_get();
		fprintf(f, "Exec time: %d us.\n", profclk_us(stop_clk - start_clk));
	}

	return 0;
}
コード例 #3
0
ファイル: slcdev-sim.c プロジェクト: bobmittmann/thinkos
void sim_js_exec(struct microjs_vm * vm, struct ss_device * dev, 
				 struct db_dev_model * model, uint8_t code[])
{
	microjs_exec(vm, code);
}