From 26ed9fee04a5509a7396d36e7b575a4375738720 Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Mon, 9 Dec 2024 20:38:01 +0000
Subject: [PATCH] asm: define on-disk data structures for assembly files

---
 asm/include/ivy/asm/bin.h | 111 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 asm/include/ivy/asm/bin.h

diff --git a/asm/include/ivy/asm/bin.h b/asm/include/ivy/asm/bin.h
new file mode 100644
index 0000000..79f965b
--- /dev/null
+++ b/asm/include/ivy/asm/bin.h
@@ -0,0 +1,111 @@
+#ifndef IVY_ASM_BIN_H_
+#define IVY_ASM_BIN_H_
+
+#include <stdint.h>
+
+#define IVY_BIN_MAGIC			0x2E495659u
+
+#define IVY_TABLE_IMPORT		0x58494D50u
+#define IVY_TABLE_CLASS			0x58434C53u
+#define IVY_TABLE_LAMBDA		0x4C424441u
+#define IVY_TABLE_MSGH			0x4D534748u
+#define IVY_TABLE_POOL			0x504F4F4Cu
+#define IVY_TABLE_XDAT			0x53544142u
+
+#define IVY_CLASS_TABLE_MVAR		0x4D564152u
+#define IVY_CLASS_TABLE_PROP		0x50524F50u
+
+#define IVY_CONSTPOOL_TABLE_NULL	0x00000000u
+#define IVY_CONSTPOOL_TABLE_STRING	0x58535452u
+#define IVY_CONSTPOOL_TABLE_INT		0x53494E54u
+#define IVY_CONSTPOOL_TABLE_UINT	0x55494E54u
+#define IVY_CONSTPOOL_TABLE_ATOM	0x41544F4Du
+#define IVY_CONSTPOOL_TABLE_SELECTOR	0x5853454Cu
+#define IVY_CONSTPOOL_TABLE_IDENT	0x49444E54u
+
+#define IVY_BIN_SELECTOR_OBJECT		0x00000001u
+#define IVY_BIN_SELECTOR_CLASS		0x00000002u
+
+struct ivy_bin_header {
+	uint32_t h_magic;
+	uint16_t h_table_len;
+	uint64_t h_table_offset;
+};
+
+struct ivy_bin_table_entry {
+	uint32_t e_type;
+	uint64_t e_offset;
+	uint32_t e_size;
+};
+
+struct ivy_bin_class_table_entry {
+	uint32_t e_type;
+	union {
+		struct {
+			uint32_t p_ident;
+			uint32_t p_get;
+			uint32_t p_set;
+		} e_property;
+
+		struct {
+			uint32_t m_index;
+			uint32_t m_ident;
+		} e_mvar;
+	};
+};
+
+struct ivy_bin_class {
+	uint32_t c_ident;
+	struct ivy_bin_class_table_entry c_table[];
+};
+
+struct ivy_bin_lambda {
+	uint32_t l_ident;
+	uint32_t l_instr[];
+};
+
+struct ivy_bin_msgh {
+	uint32_t msg_recipient;
+	uint32_t msg_selector;
+	uint32_t msg_instr[];
+};
+
+struct ivy_bin_constpool_header {
+	uint32_t c_nr_table_entries;
+	uint64_t c_table_offset;
+};
+
+struct ivy_bin_string {
+	uint32_t s_hash;
+	uint32_t s_len;
+	char s_chars[];
+};
+
+struct ivy_bin_selector {
+	uint8_t sel_flags;
+	uint8_t sel_nr_args;
+	uint32_t sel_hash;
+	uint32_t sel_name;
+	uint32_t sel_args[];
+};
+
+struct ivy_bin_ident {
+	uint32_t id_hash;
+	uint8_t id_nr_parts;
+	uint32_t id_parts[];
+};
+
+struct ivy_bin_constpool_table_entry {
+	uint32_t e_type;
+
+	union {
+		uint32_t e_atom;
+		uint32_t e_string;
+		uint32_t e_ident;
+		uint32_t e_sel;
+		int64_t e_sint;
+		uint64_t e_uint;
+	};
+};
+
+#endif
\ No newline at end of file