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pc, pc64: use 64-bit physical addresses for ISAConf.port

--- a/sys/src/9/pc/dat.h

+++ b/sys/src/9/pc/dat.h

@@ -343,7 +343,7 @@

 struct ISAConf {

 	char	*type;

-	ulong	port;

+	uvlong	port;

 	int	irq;

 	ulong	dma;

 	ulong	mem;

--- a/sys/src/9/pc/devarch.c

+++ b/sys/src/9/pc/devarch.c

@@ -1247,7 +1247,7 @@

 		if(cistrncmp(p, "type=", 5) == 0)

 			isa->type = p + 5;

 		else if(cistrncmp(p, "port=", 5) == 0)

-			isa->port = strtoul(p+5, &p, 0);

+			isa->port = strtoull(p+5, &p, 0);

 		else if(cistrncmp(p, "irq=", 4) == 0)

 			isa->irq = strtoul(p+4, &p, 0);

 		else if(cistrncmp(p, "dma=", 4) == 0)

--- a/sys/src/9/pc64/dat.h

+++ b/sys/src/9/pc64/dat.h

@@ -319,7 +319,7 @@

 struct ISAConf {

 	char	*type;

-	ulong	port;

+	uvlong	port;

 	int	irq;

 	ulong	dma;

 	ulong	mem;