Index: kernel/arch/amd64/src/interrupt.c
===================================================================
--- kernel/arch/amd64/src/interrupt.c	(revision 9171f12a3b36bd0fdd642c8020e4a32cbb63625d)
+++ kernel/arch/amd64/src/interrupt.c	(revision a6ba0c9cb46c31fab5fccc5ab7ff90a3a8cacb82)
@@ -65,18 +65,28 @@
 void istate_decode(istate_t *istate)
 {
-	printf("cs =%p\trip=%p\trfl=%p\terr=%p\n",
-	    istate->cs, istate->rip, istate->rflags, istate->error_word);
-
+	printf("cs =%#0" PRIx64 "\trip=%p\t"
+	    "rfl=%#0" PRIx64 "\terr=%#0" PRIx64 "\n",
+	    istate->cs, (void *) istate->rip,
+	    istate->rflags, istate->error_word);
+	
 	if (istate_from_uspace(istate))
-		printf("ss =%p\n", istate->ss);
-	
-	printf("rax=%p\trbx=%p\trcx=%p\trdx=%p\n",
+		printf("ss =%#0" PRIx64 "\n", istate->ss);
+	
+	printf("rax=%#0" PRIx64 "\trbx=%#0" PRIx64 "\t"
+	    "rcx=%#0" PRIx64 "\trdx=%#0" PRIx64 "\n",
 	    istate->rax, istate->rbx, istate->rcx, istate->rdx);
+	
 	printf("rsi=%p\trdi=%p\trbp=%p\trsp=%p\n",
-	    istate->rsi, istate->rdi, istate->rbp,
-	    istate_from_uspace(istate) ? istate->rsp : (uintptr_t)&istate->rsp);
-	printf("r8 =%p\tr9 =%p\tr10=%p\tr11=%p\n",
+	    (void *) istate->rsi, (void *) istate->rdi,
+	    (void *) istate->rbp,
+	    istate_from_uspace(istate) ? ((void *) istate->rsp) :
+	    &istate->rsp);
+	
+	printf("r8 =%#0" PRIx64 "\tr9 =%#0" PRIx64 "\t"
+	    "r10=%#0" PRIx64 "\tr11=%#0" PRIx64 "\n",
 	    istate->r8, istate->r9, istate->r10, istate->r11);
-	printf("r12=%p\tr13=%p\tr14=%p\tr15=%p\n",
+	
+	printf("r12=%#0" PRIx64 "\tr13=%#0" PRIx64 "\t"
+	    "r14=%#0" PRIx64 "\tr15=%#0" PRIx64 "\n",
 	    istate->r12, istate->r13, istate->r14, istate->r15);
 }