1 files changed, 62 insertions, 0 deletions
diff --git a/types.h b/types.h
new file mode 100644
index 0000000..19d803d
--- /dev/null
+++ b/types.h
@@ -0,0 +1,62 @@
+#ifndef TYPES_H
+#define TYPES_H
+
+#include "config.h"
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef signed short i16;
+typedef unsigned int u32;
+
+/*
+ * You may use the following defines to adjust the type definitions
+ * depending on the architecture:
+ * - Define BIGENDIAN on big-endian systems. Untested, as all target
+ *   systems to date are little-endian.
+ * - Define ALIGNMENT_WORKAROUND if your system doesn't support
+ *   non-aligned memory access. In this case, we use a slower, but safer,
+ *   memory access method. This should be done automatically in config.h
+ *   for architectures which need it.
+ */
+
+#ifdef BIGENDIAN
+typedef struct {
+	u32 h;
+	u32 l;
+} u64;
+#else
+typedef struct {
+	u32 l;
+	u32 h;
+} u64;
+#endif
+
+#ifdef ALIGNMENT_WORKAROUND
+static inline u64 U64(u32 low, u32 high)
+{
+	u64 self;
+
+	self.l = low;
+	self.h = high;
+
+	return self;
+}
+#endif
+
+#ifdef ALIGNMENT_WORKAROUND
+#	ifdef BIGENDIAN
+#	define WORD(x) (u16)((x)[1] + ((x)[0] << 8))
+#	define DWORD(x) (u32)((x)[3] + ((x)[2] << 8) + ((x)[1] << 16) + ((x)[0] << 24))
+#	define QWORD(x) (U64(DWORD(x + 4), DWORD(x)))
+#	else /* BIGENDIAN */
+#	define WORD(x) (u16)((x)[0] + ((x)[1] << 8))
+#	define DWORD(x) (u32)((x)[0] + ((x)[1] << 8) + ((x)[2] << 16) + ((x)[3] << 24))
+#	define QWORD(x) (U64(DWORD(x), DWORD(x + 4)))
+#	endif /* BIGENDIAN */
+#else /* ALIGNMENT_WORKAROUND */
+#define WORD(x) (u16)(*(const u16 *)(x))
+#define DWORD(x) (u32)(*(const u32 *)(x))
+#define QWORD(x) (*(const u64 *)(x))
+#endif /* ALIGNMENT_WORKAROUND */
+
+#endif