Add portaddr_t typedef to specify I/O port addresses

On x86 I/O ports are located below address 0x4000, while
on PA-RISC I/O ports are allowed in the whole 32/64 bit
address space.

So, introduce a portaddr_t typedef which defaults to the
current u16 type on x86 and to unsigned long on PA-RISC.

Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/types.h b/src/types.h
index 19d9f6c..5887ecf 100644
--- a/src/types.h
+++ b/src/types.h
@@ -21,11 +21,17 @@ union u64_u32_u {
     u64 val;
 };
 
+#if MODE16 == 1
+typedef u16 portaddr_t;
+#else
+typedef unsigned int portaddr_t;
+#endif
+
 // Definition for common 16bit segment/offset pointers.
 struct segoff_s {
     union {
         struct {
-            u16 offset;
+            portaddr_t offset;
             u16 seg;
         };
         u32 segoff;