From 32b4cab78eca46e219d2b85e4e79983c1fbc02df Mon Sep 17 00:00:00 2001
From: sBubshait <s.bobshit@gmail.com>
Date: Wed, 29 May 2024 13:27:03 +0100
Subject: [PATCH] Add Object File Loader (objectloader)

---
 src/emulator/defs.h         | 26 ++++++++++++++++++++++++++
 src/emulator/objectloader.c | 34 ++++++++++++++++++++++++++++++++++
 src/emulator/objectloader.h | 15 +++++++++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 src/emulator/defs.h
 create mode 100644 src/emulator/objectloader.c
 create mode 100644 src/emulator/objectloader.h

diff --git a/src/emulator/defs.h b/src/emulator/defs.h
new file mode 100644
index 0000000..62cd9e5
--- /dev/null
+++ b/src/emulator/defs.h
@@ -0,0 +1,26 @@
+/**
+ ********************************************************************************
+ * @file    defs.h
+ * @brief   Defines global constants and types used in the emulator.
+ ********************************************************************************
+ */
+
+#ifndef DEFS_H
+#define DEFS_H
+#include "../global.h"
+#include <stdint.h>
+
+/************************************
+ * MACROS AND CONSTANTS
+ ************************************/
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+/************************************
+ * TYPEDEFS
+ ************************************/
+
+typedef uint8_t Byte;
+
+
+ #endif
\ No newline at end of file
diff --git a/src/emulator/objectloader.c b/src/emulator/objectloader.c
new file mode 100644
index 0000000..533d146
--- /dev/null
+++ b/src/emulator/objectloader.c
@@ -0,0 +1,34 @@
+/**
+ ********************************************************************************
+ * @file    objectloader.c
+ * @brief   Object file loader for the emulator
+ ********************************************************************************
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include "objectloader.h"
+#include "defs.h"
+
+void loadObjectFile(const char *filename, Byte *memoryAddress) {
+    FILE *file = fopen(filename, "rb");
+
+    // Check if the file exists
+    if (file == NULL) {
+        fprintf(stderr, "Error: Could not open file %s\n", filename);
+        exit(EXIT_FAILURE);
+    }
+
+    // Load the object file into memory (or as much as possible)
+    size_t bytesRead = fread(memoryAddress, MEMORY_SIZE, 1, file);
+    if (bytesRead == 0) {
+        if (feof(file))
+            exit(EXIT_SUCCESS);
+        
+        fprintf(stderr, "Error: Could not read from file %s\n", filename);
+        exit(EXIT_FAILURE);
+    }
+
+    fclose(file);
+}
\ No newline at end of file
diff --git a/src/emulator/objectloader.h b/src/emulator/objectloader.h
new file mode 100644
index 0000000..c08cfaa
--- /dev/null
+++ b/src/emulator/objectloader.h
@@ -0,0 +1,15 @@
+/**
+  * @file objectloader.h
+  * @brief Object file loader for the emulator
+  */
+
+#include <stdbool.h>
+#include "defs.h"
+
+/**
+ * @brief Loads an object file into memory starting at memoryAddress.
+ * 
+ * @param filename The name of the file to be read
+ * @param memoryAddress The memory address to load the object file into
+ */
+void loadObjectFile(const char *filename, Byte *memoryAddress);
\ No newline at end of file