Commited some old changes, idk what they were

include/c/syscall.h

@@ -1,23 +1,41 @@
 #ifndef SYSCALLNUMS_H
 #define SYSCALLNUMS_H
 
-#include <stdint.h>
-
-#define MAX_SYSCALLS 5
-
-typedef enum {
-    SYS_SLEEP, 
-    SYS_WRITE,
-    SYS_GETS,
-    SYS_MALLOC,
-    SYS_FREE,
-} SYSCALL_NUMBERS;
+#define MAX_SYSCALLS 9
 
 // TODO: Add malloc() and free() syscall wrappers??
-int32_t write(int32_t fd, const void* buf, uint32_t len) {
-    int32_t result = -1;
+
+typedef enum {
+    SYS_RESERVED,
+    SYS_SLEEP, 
+    SYS_GETS,
+    SYS_WRITE,
+    SYS_OPEN,
+    SYS_CLOSE,
+    SYS_MALLOC,
+    SYS_FREE,
+    SYS_SEEK,
+} SYSCALL_NUMBERS;
+
+typedef enum {
+    O_CREAT     = 0x1,  // Create if does not exist
+    O_RDONLY    = 0x2,  // Read only
+    O_WRONLY    = 0x4,  // Write only
+    O_RDWR      = 0x8,  // Read and write
+    O_APPEND    = 0x10, // Always writes at the end (appends)
+    O_TRUNC     = 0x20, // Truncate file size and position to 0 on Open
+} OFLAGS;
+
+int write(int fd, const void* buf, unsigned int len) {
+    int result = -1;
     __asm__ volatile ("int $0x80" : "=a"(result) : "a"(SYS_WRITE), "b"(fd), "c"(buf), "d"(len));
     return result;
 }
 
+int open(const char* path, int oflag) {
+    int result = -1;
+    __asm__ volatile ("int $0x80" : "=a"(result) : "a"(SYS_OPEN), "b"(path), "c"(oflag));
+    return result;
+}
+
 #endif