diff --git a/PDP10/ks10_dup.c b/PDP10/ks10_dup.c
index 0b25626..c70e2a6 100644
--- a/PDP10/ks10_dup.c
+++ b/PDP10/ks10_dup.c
@@ -982,7 +982,7 @@ sim_debug(DBG_TRC, DUPDPTR, "dup_svc(dup=%d)\n", dup);
 if (!(dup_txcsr[dup] & TXCSR_M_TXDONE) && (!tmxr_tpbusyln (lp))) {
     uint8 data = dup_txdbuf[dup] & TXDBUF_M_TXDBUF;
 
-    dup_put_msg_bytes (dup, &data, (dup_txdbuf[dup] & TXDBUF_M_TEOM) && (dptr == &dup_dev) ? 0 : 1, dup_txdbuf[dup] & TXDBUF_M_TSOM, (dup_txdbuf[dup] & TXDBUF_M_TEOM));
+    dup_put_msg_bytes (dup, &data, 0, dup_txdbuf[dup] & TXDBUF_M_TSOM, (dup_txdbuf[dup] & TXDBUF_M_TEOM));
     if (tmxr_tpbusyln (lp)) { /* Packet ready to send? */
         sim_debug(DBG_TRC, DUPDPTR, "dup_svc(dup=%d) - Packet Done %d bytes\n", dup, dup_xmtpkoffset[dup]);
         }
@@ -1152,7 +1152,6 @@ return SCPE_OK;
 
 static t_stat dup_reset (DEVICE *dptr)
 {
-t_stat r;
 int32 i, ndev, attached = 0;
 
 sim_debug(DBG_TRC, dptr, "dup_reset()\n");
@@ -1190,7 +1189,7 @@ sim_cancel (dup_units+dup_desc.lines);                  /* stop poll */
 ndev = ((dptr->flags & DEV_DIS)? 0: dup_desc.lines );
 if (attached)
     sim_activate_after (dup_units+dup_desc.lines, DUP_CONNECT_POLL*1000000);/* start poll */
-return r;
+return SCPE_OK;
 }
 
 static t_stat dup_attach (UNIT *uptr, CONST char *cptr)
diff --git a/PDP10/kx10_cpu.c b/PDP10/kx10_cpu.c
index cf2ed5e..5c7184d 100644
--- a/PDP10/kx10_cpu.c
+++ b/PDP10/kx10_cpu.c
@@ -495,7 +495,9 @@ REG cpu_reg[] = {
 #if KL | KI | ITS | BBN | KS
     { FLDATAD (PAGE_ENABLE, page_enable, 0, "Paging enabled")},
     { FLDATAD (PAGE_FAULT, page_fault, 0, "Page fault"), REG_RO},
+#if KI | ITS | BBN
     { ORDATAD (AC_STACK, ac_stack, 18, "AC Stack"), REG_RO},
+#endif
     { ORDATAD (PAGE_RELOAD, pag_reload, 18, "Page reload"), REG_HRO},
     { ORDATAD (FAULT_DATA, fault_data, 36, "Page fault data"), REG_RO},
     { FLDATAD (TRP_FLG, trap_flag, 0, "Trap flag"), REG_HRO},
@@ -8810,7 +8812,7 @@ jrstf:
 #endif
 #if KL
               if (QKLB && t20_page)
-                  pc_sect = AR >> 18;
+                  pc_sect = (AR >> 18) & 0037;
 #endif
               PC = AR & RMASK;
               PC_CHANGE
@@ -13419,9 +13421,12 @@ pi_pending = pi_enc = apr_irq = 0;
 ov_irq =fov_irq =clk_en =clk_irq = 0;
 pi_restore = pi_hold = 0;
 FLAGS = 0;
+#if KI | ITS | BBN
+ac_stack = 0;
+#endif
 #if KI | KL | KS
 ub_ptr = eb_ptr = 0;
-pag_reload = ac_stack = 0;
+pag_reload = 0;
 #if KI
 fm_sel = small_user = user_addr_cmp = page_enable = 0;
 #else