initial upload

examples/osd/embedd-vm-merkurboard/embedvm.h

@@ -0,0 +1,53 @@
+/*
+ *  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