diff -urN linux/drivers/pnp/isapnp/core.c linux98/drivers/pnp/isapnp/core.c
--- linux/drivers/pnp/isapnp/core.c	Tue Nov  5 07:30:31 2002
+++ linux98/drivers/pnp/isapnp/core.c	Sun Nov 10 23:25:36 2002
@@ -76,8 +76,13 @@
 MODULE_PARM_DESC(isapnp_verbose, "ISA Plug & Play verbose mode");
 MODULE_LICENSE("GPL");
 
+#ifndef CONFIG_PC9800
 #define _PIDXR		0x279
 #define _PNPWRP		0xa79
+#else
+#define _PIDXR		0x259
+#define _PNPWRP		0xa59
+#endif
 
 /* short tags */
 #define _STAG_PNPVERNO		0x01