-#define isa_readb(p) in_8(isa_mtb(p))
-#define isa_readw(p) (ISA_SEX ? in_be16(isa_mtw(p)) : in_le16(isa_mtw(p)))
-#define isa_writeb(val,p) out_8(isa_mtb(p),(val))
-#define isa_writew(val,p) (ISA_SEX ? out_be16(isa_mtw(p),(val)) : out_le16(isa_mtw(p),(val)))
+#define isa_readb(p) in_8(isa_mtb((unsigned long)(p)))
+#define isa_readw(p) \
+ (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
+ : in_le16(isa_mtw((unsigned long)(p))))
+#define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val))
+#define isa_writew(val,p) \
+ (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \
+ : out_le16(isa_mtw((unsigned long)(p)),(val)))