diff --git a/sys/arch/news68k/dev/hb.c b/sys/arch/news68k/dev/hb.c
index a141916665b4..79599a5c9cf7 100644
--- a/sys/arch/news68k/dev/hb.c
+++ b/sys/arch/news68k/dev/hb.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: hb.c,v 1.4 2000/10/04 16:26:43 tsutsui Exp $	*/
+/*	$NetBSD: hb.c,v 1.5 2001/07/07 06:24:00 tsutsui Exp $	*/
 
 /*-
  * Copyright (C) 1999 Izumi Tsutsui.  All rights reserved.
@@ -74,7 +74,7 @@ hb_attach(parent, self, aux)
 	struct hb_attach_args ha;
 
 	printf("\n");
-	bzero(&ha, sizeof(ha));
+	memset(&ha, 0, sizeof(ha));
 
 	config_search(hb_search, self, &ha);
 }
diff --git a/sys/arch/news68k/news68k/isr.c b/sys/arch/news68k/news68k/isr.c
index 4b40092e6711..7107ce88b1cb 100644
--- a/sys/arch/news68k/news68k/isr.c
+++ b/sys/arch/news68k/news68k/isr.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: isr.c,v 1.6 2000/11/09 13:32:06 tsutsui Exp $	*/
+/*	$NetBSD: isr.c,v 1.7 2001/07/07 06:24:00 tsutsui Exp $	*/
 
 /*-
  * Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -195,7 +195,8 @@ isrunlink_vectored(vec)
 		panic("isrunlink_vectored: not vectored interrupt");
 
 	vectab[vec] = badtrap;
-	bzero(&isr_vectored[vec - ISRVECTORED], sizeof(struct isr_vectored));
+	memset(&isr_vectored[vec - ISRVECTORED], 0,
+	    sizeof(struct isr_vectored));
 }
 
 /*
diff --git a/sys/arch/news68k/news68k/machdep.c b/sys/arch/news68k/news68k/machdep.c
index 0be0a4b40c14..0cdb2f513969 100644
--- a/sys/arch/news68k/news68k/machdep.c
+++ b/sys/arch/news68k/news68k/machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: machdep.c,v 1.22 2001/07/07 05:09:44 tsutsui Exp $	*/
+/*	$NetBSD: machdep.c,v 1.23 2001/07/07 06:24:00 tsutsui Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -508,7 +508,7 @@ cpu_init_kcore_hdr()
 	cpu_kcore_hdr_t *h = &cpu_kcore_hdr;
 	struct m68k_kcore_hdr *m = &h->un._m68k;
 
-	bzero(&cpu_kcore_hdr, sizeof(cpu_kcore_hdr));
+	memset(&cpu_kcore_hdr, 0, sizeof(cpu_kcore_hdr));
 
 	/*
 	 * Initialize the `dispatcher' portion of the header.
diff --git a/sys/arch/news68k/news68k/mem.c b/sys/arch/news68k/news68k/mem.c
index 2266b1ba4ed0..2909fb6b84a6 100644
--- a/sys/arch/news68k/news68k/mem.c
+++ b/sys/arch/news68k/news68k/mem.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: mem.c,v 1.6 2001/04/24 04:31:04 thorpej Exp $	*/
+/*	$NetBSD: mem.c,v 1.7 2001/07/07 06:24:00 tsutsui Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -183,7 +183,7 @@ mmrw(dev, uio, flags)
 			if (devzeropage == NULL) {
 				devzeropage = (caddr_t)
 				    malloc(NBPG, M_TEMP, M_WAITOK);
-				bzero(devzeropage, NBPG);
+				memset(devzeropage, 0, NBPG);
 			}
 			c = min(iov->iov_len, NBPG);
 			error = uiomove(devzeropage, c, uio);
diff --git a/sys/arch/news68k/news68k/pmap.c b/sys/arch/news68k/news68k/pmap.c
index 3bababace798..aadd0ba4cc7d 100644
--- a/sys/arch/news68k/news68k/pmap.c
+++ b/sys/arch/news68k/news68k/pmap.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.16 2001/06/02 18:09:17 chs Exp $	*/
+/*	$NetBSD: pmap.c,v 1.17 2001/07/07 06:24:01 tsutsui Exp $	*/
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -725,7 +725,7 @@ pmap_create()
 	    ("pmap_create\n"));
 
 	pmap = pool_get(&pmap_pmap_pool, PR_WAITOK);
-	bzero(pmap, sizeof(*pmap));
+	memset(pmap, 0, sizeof(*pmap));
 	pmap_pinit(pmap);
 	return (pmap);
 }
@@ -2542,7 +2542,7 @@ pmap_enter_ptpage(pmap, va)
 				panic("enter: out of address space"); /* XXX */
 			pmap->pm_stfree &= ~l2tobm(ix);
 			addr = (caddr_t)&pmap->pm_stab[ix*SG4_LEV2SIZE];
-			bzero(addr, SG4_LEV2SIZE*sizeof(st_entry_t));
+			memset(addr, 0, SG4_LEV2SIZE*sizeof(st_entry_t));
 			addr = (caddr_t)&pmap->pm_stpa[ix*SG4_LEV2SIZE];
 			*ste = (u_int)addr | SG_RW | SG_U | SG_V;
 
@@ -2590,7 +2590,7 @@ pmap_enter_ptpage(pmap, va)
 		kpt->kpt_next = kpt_used_list;
 		kpt_used_list = kpt;
 		ptpa = kpt->kpt_pa;
-		bzero((caddr_t)kpt->kpt_va, NBPG);
+		memset((caddr_t)kpt->kpt_va, 0, NBPG);
 		pmap_enter(pmap, va, ptpa, VM_PROT_DEFAULT,
 		    VM_PROT_DEFAULT|PMAP_WIRED);
 		pmap_update();
diff --git a/sys/arch/news68k/news68k/vm_machdep.c b/sys/arch/news68k/news68k/vm_machdep.c
index 3a4a5629238d..9ec7a198cb9c 100644
--- a/sys/arch/news68k/news68k/vm_machdep.c
+++ b/sys/arch/news68k/news68k/vm_machdep.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: vm_machdep.c,v 1.8 2001/04/24 04:31:05 thorpej Exp $	*/
+/*	$NetBSD: vm_machdep.c,v 1.9 2001/07/07 06:24:01 tsutsui Exp $	*/
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -175,7 +175,7 @@ cpu_coredump(p, vp, cred, chdr)
 			return error;
 	} else {
 		/* Make sure these are clear. */
-		bzero((caddr_t)&md_core.freg, sizeof(md_core.freg));
+		memset((caddr_t)&md_core.freg, 0, sizeof(md_core.freg));
 	}
 
 	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);