From 17a27d445295bbaf7c7c470b1e4648635af2f0a3 Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Sun, 19 Nov 2023 19:59:53 +0200
Subject: first runnable test program

+ tests/pointer_literal.ek compiles down to very simple assembly that
  tasm can assemble and triscv run with correct results. Whopee

+ Did notice that void return functions should still have implicit return statements added
---
 include/ek/ops.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/ek/ops.h b/include/ek/ops.h
index 330de0c..e913d37 100644
--- a/include/ek/ops.h
+++ b/include/ek/ops.h
@@ -3,12 +3,56 @@
 
 #include <ek/ast.h>
 
-struct ops;
+enum loc_kind {
+	LOC_NONE, LOC_REG, LOC_MEM
+};
+
+struct loc {
+	enum loc_kind kind;
+	struct loc *next;
+	size_t start;
+	size_t end;
+	size_t reg;
+	long long off;
+	size_t width;
+};
+
+enum opcode {
+	/* small subset for now */
+	OP_LI,
+	OP_LA,
+	OP_ADD,
+	OP_ADDI,
+	OP_STT,
+	OP_LDT,
+	OP_STW,
+	OP_LDW,
+	OP_MV, /* kind of meta op, will be realized as either load/store or register move */
+	OP_LABEL,
+	OP_COMMENT,
+};
+
+struct op {
+	enum opcode opcode;
+	struct loc inputs;
+	struct loc outputs;
+	size_t loc;
+	union {
+		long long constant;
+		const char *string;
+	};
+	struct op *next;
+};
+
+struct ops {
+	struct op *base;
+	struct op *head;
+};
 
 struct ops *create_ops();
 void destroy_ops(struct ops *ops);
 int lower_ops(struct scope *root, struct ops *ops);
-int analyze_lifetime(struct ops *ops);
+int alloc_regs(struct ops *ops);
 int print_asm(struct ops *ops, const char *output);
 
 #endif /* EK_OPS_H */
-- 
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