1 files changed, 79 insertions, 0 deletions
diff --git a/src/libparsec/include/gd_host.h b/src/libparsec/include/gd_host.h
new file mode 100644
index 0000000..96115bd
--- /dev/null
+++ b/src/libparsec/include/gd_host.h
@@ -0,0 +1,79 @@
+/*
+ * PARSEC HEADER: gd_host.h
+ */
+
+#ifndef _GD_HOST_H_
+#define _GD_HOST_H_
+
+
+// ----------------------------------------------------------------------------
+// HOST BYTE ORDER/WORD SIZE RELATED MACROS                                   -
+// ----------------------------------------------------------------------------
+
+
+// endianness conversion functions --------------------------------------------
+//
+#define FORCESWAP_16(s)		( ((word)(s) >> 8) | ((word)(s) << 8) )
+#define FORCESWAP_32(l)		( ( ((dword)(l)             ) << 24 ) |	\
+							  ( ((dword)(l)             ) >> 24 ) |	\
+							  ( ((dword)(l) & 0x0000ff00) << 8 )  |	\
+							  ( ((dword)(l) & 0x00ff0000) >> 8 ) )
+
+#ifdef SYSTEM_BIG_ENDIAN
+
+	// little endian to host (and vice versa)
+	#define SWAP_16(s)		FORCESWAP_16(s)
+	#define SWAP_32(l)		FORCESWAP_32(l)
+
+	// big endian to host (and vice versa)
+	#define SWAP_16_BIG(s)	(s)
+	#define SWAP_32_BIG(l)	(l)
+
+#else
+
+	// little endian to host (and vice versa)
+	#define SWAP_16(s)		(s)
+	#define SWAP_32(l)		(l)
+
+	// big endian to host (and vice versa)
+	#define SWAP_16_BIG(s)	FORCESWAP_16(s)
+	#define SWAP_32_BIG(l)	FORCESWAP_32(l)
+
+#endif // SYSTEM_BIG_ENDIAN
+
+
+// conversion from seg:ofs address to linear address (DOS32 only) -------------
+//
+#define MK_LINEAR(seg,ofs)			((void*)((seg<<4)+ofs))
+
+
+// lo and hi byte and word functions (intentionally not named like in win32) --
+//
+#ifndef LO_BYTE
+	#define LO_BYTE(w)				((byte)(w))
+#endif
+
+#ifndef HI_BYTE
+	#define HI_BYTE(w)				((byte)((w)>>8))
+#endif
+
+#ifndef LO_WORD
+	#define LO_WORD(l)				((word)(l))
+#endif
+
+#ifndef HI_WORD
+	#define HI_WORD(l)				((word)((l)>>16))
+#endif
+
+#ifndef MAKE_WORD
+	#define MAKE_WORD(l,h)			(((byte)(l))|(((word)(byte)(h))<<8))
+#endif
+
+#ifndef MAKE_DWORD
+	#define MAKE_DWORD(l,h)			(((word)(l))|(((dword)(word)(h))<<16))
+#endif
+
+
+#endif // _GD_HOST_H_
+
+