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-rw-r--r--gen.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/gen.h b/gen.h
new file mode 100644
index 0000000..e1492fc
--- /dev/null
+++ b/gen.h
@@ -0,0 +1,25 @@
+#ifndef GEN_H_
+#define GEN_H_
+#include <stdint.h>
+
+#if defined(X86_64) || defined(X86_32)
+typedef uint8_t code_word;
+#define RESERVE_WORDS 5 //opcode + 4-byte displacement
+#else
+typedef uint32_t code_word;
+#define RESERVE_WORDS 4 //1 push + 1 ldr + 1bx + 1 constant
+#endif
+typedef code_word * code_ptr;
+#define CODE_ALLOC_SIZE (1024*1024)
+
+typedef struct {
+ code_ptr cur;
+ code_ptr last;
+} code_info;
+
+void init_code_info(code_info *code);
+void call(code_info *code, code_ptr fun);
+void jmp(code_info *code, code_ptr dest);
+void jmp_r(code_info *code, uint8_t dst);
+
+#endif //GEN_H_