Created an include directory

include/macros.h

@@ -0,0 +1,65 @@
+#ifndef _MACROS_H_
+#define _MACROS_H_
+
+#ifndef __sgi
+#define GLOBAL_ASM(...)
+#endif
+
+#if !defined(__sgi) && (!defined(NON_MATCHING) || !defined(AVOID_UB))
+// asm-process isn't supported outside of IDO, and undefined behavior causes
+// crashes.
+#error Matching build is only possible on IDO; please build with NON_MATCHING=1.
+#endif
+
+#define ARRAY_COUNT(arr) (s32)(sizeof(arr) / sizeof(arr[0]))
+
+#define GLUE(a, b) a ## b
+#define GLUE2(a, b) GLUE(a, b)
+
+// Avoid compiler warnings for unused variables
+#ifdef __GNUC__
+#define UNUSED __attribute__((unused))
+#else
+#define UNUSED
+#endif
+
+// Avoid undefined behaviour for non-returning functions
+#ifdef __GNUC__
+#define NORETURN __attribute__((noreturn))
+#else
+#define NORETURN
+#endif
+
+// Static assertions
+#ifdef __GNUC__
+#define STATIC_ASSERT(cond, msg) _Static_assert(cond, msg)
+#else
+#define STATIC_ASSERT(cond, msg) typedef char GLUE2(static_assertion_failed, __LINE__)[(cond) ? 1 : -1]
+#endif
+
+// Align to 8-byte boundary for DMA requirements
+#ifdef __GNUC__
+#define ALIGNED8 __attribute__((aligned(8)))
+#else
+#define ALIGNED8
+#endif
+
+// Align to 16-byte boundary for audio lib requirements
+#ifdef __GNUC__
+#define ALIGNED16 __attribute__((aligned(16)))
+#else
+#define ALIGNED16
+#endif
+
+// convert a virtual address to physical.
+#define VIRTUAL_TO_PHYSICAL(addr)   ((uintptr_t)(addr) & 0x1FFFFFFF)
+
+// convert a physical address to virtual.
+#define PHYSICAL_TO_VIRTUAL(addr)   ((uintptr_t)(addr) | 0x80000000)
+
+// another way of converting virtual to physical
+#define VIRTUAL_TO_PHYSICAL2(addr)  ((u8 *)(addr) - 0x80000000U)
+
+#define ABSF(x) (x < 0.f ? -x : x)
+
+#endif

include/types.h

@@ -0,0 +1,11 @@
+typedef unsigned char  u8;
+typedef unsigned short u16;
+typedef unsigned int   u32;
+typedef unsigned long  u64;
+typedef signed char    s8;
+typedef signed short   s16;
+typedef signed int     s32;
+typedef signed long    s64;
+typedef float          f32;
+typedef double         f64;
+