init

ir.h

@@ -0,0 +1,78 @@
+#ifndef __IR_H__
+#define __IR_H__
+
+#include "tok.h"
+
+enum IRInstr {
+	IRSet,
+	IRNeg,
+	IRAdd,
+	IRSub,
+	IRMul,
+	IRDiv,
+	IRPrint,
+	IRJnz,
+	IRInstrEnumSize,
+};
+typedef enum IRInstr IRInstr;
+
+extern const char *irinstr_str[IRInstrEnumSize];
+
+typedef struct IRParam {
+	enum {
+		IRParamNull = 0,
+		IRParamLiteral,
+		IRParamAddr,
+	} kind;
+
+	union {
+		Value Literal;
+		size_t Addr;
+	};
+} IRParam;
+
+typedef struct IRArgs {
+	struct IRArgs *next;
+	IRParam param;
+} IRArgs;
+
+typedef struct IRTok {
+	size_t ln, col;
+
+	IRInstr instr;
+
+	union {
+		struct {
+			size_t addr;
+			IRParam val;
+		} Unary;
+
+		struct {
+			size_t addr;
+			IRParam lhs, rhs;
+		} Arith;
+
+		struct {
+			IRArgs *args;
+			size_t args_size;
+		} Print;
+		
+		struct {
+			size_t iaddr;
+			IRParam condition;
+		} CJmp;
+	};
+} IRTok;
+
+typedef struct IRToks {
+	size_t len, cap;
+	IRTok *toks;
+} IRToks;
+
+void irtoks_init(IRToks *v);
+void irtoks_term(IRToks *v);
+void irtoks_app(IRToks *v, IRTok t);
+
+void print_ir(IRToks *v);
+
+#endif /* IR_H */