diff --git a/IBM360/ibm360_cdp.c b/IBM360/ibm360_cdp.c
index 143d6ba..b4cbca3 100644
--- a/IBM360/ibm360_cdp.c
+++ b/IBM360/ibm360_cdp.c
@@ -170,8 +170,10 @@ cdp_srv(UNIT *uptr) {
         /* If we get here, something is wrong */
         case SCPE_IOERR:
              chan_end(addr, SNS_DEVEND|SNS_UNITCHK);
+             break;
         default:
              chan_end(addr, SNS_DEVEND);
+             break;
         }
     }
 
diff --git a/IBM360/ibm360_cdr.c b/IBM360/ibm360_cdr.c
index 906f023..a82195a 100644
--- a/IBM360/ibm360_cdr.c
+++ b/IBM360/ibm360_cdr.c
@@ -196,15 +196,17 @@ cdr_srv(UNIT *uptr) {
     if ((uptr->u3 & CDR_CMDMSK) == CDR_RD) {
         struct _card_data   *data;
         int                  u = uptr-cdr_unit;
+        uint16               xlat;
         uint8                ch = 0;
 
         data = (struct _card_data *)uptr->up7;
-        ch = sim_hol_to_ebcdic(data->image[uptr->u4]);
+        xlat = sim_hol_to_ebcdic(data->image[uptr->u4]);
 
-        if (ch == 0x100) {
+        if (xlat == 0x100) {
             uptr->u5 |= SNS_DATCHK;
             ch = 0x00;
-        }
+        } else
+            ch = (uint8)(xlat&0xff);
         if (chan_write_byte(addr, &ch)) {
            uptr->u3 &= ~(CDR_CMDMSK);
            chan_end(addr, SNS_CHNEND|SNS_DEVEND|(uptr->u5 ? SNS_UNITCHK:0));
diff --git a/IBM360/ibm360_cpu.c b/IBM360/ibm360_cpu.c
index 961e088..fcc7601 100644
--- a/IBM360/ibm360_cpu.c
+++ b/IBM360/ibm360_cpu.c
@@ -680,7 +680,6 @@ opr:
              hst[hst_p].addr2 = addr2;
              hst[hst_p].src1 = src1;
              hst[hst_p].src2 = src2;
-             hst[hst_p].dest = dest;
         }
 
         /* Preform opcode */
@@ -1618,10 +1617,10 @@ save_dbl:
                 while(reg != 0) {
                     uint8        t;
                     uint32  temp;
-                    ReadByte(addr1, &temp);
+                    (void)ReadByte(addr1, &temp);
                     t = temp;
                     if (src1) {
-                        ReadByte(addr2, &dest);
+                        (void)ReadByte(addr2, &dest);
                         addr2--;
                         reg --;
                     }
diff --git a/IBM360/ibm360_dasd.c b/IBM360/ibm360_dasd.c
index 5abfb53..0a07287 100644
--- a/IBM360/ibm360_dasd.c
+++ b/IBM360/ibm360_dasd.c
@@ -1186,7 +1186,7 @@ dasd_attach(UNIT * uptr, CONST char *file)
         return SCPE_ARG;
     }
     sim_fseek(uptr->fileref, sizeof(struct dasd_header), SEEK_SET);
-    sim_fread(data->cbuf, 1, tsize * hdr.heads, uptr->fileref);
+    sim_fread(data->cbuf, 1, tsize, uptr->fileref);
     data->cpos = sizeof(struct dasd_header);
     data->ccyl = 0;
     data->cyl = 2000;
diff --git a/IBM360/ibm360_mt.c b/IBM360/ibm360_mt.c
index 0d0a523..b95dae9 100644
--- a/IBM360/ibm360_mt.c
+++ b/IBM360/ibm360_mt.c
@@ -232,13 +232,13 @@ uint8  mt_startcmd(UNIT *uptr, uint16 chan,  uint8 cmd) {
     uint8          ch;
 
     if (mt_busy[GET_DEV_BUF(dptr->flags)] != 0 || (uptr->u3 & MT_CMDMSK) != 0) {
-        sim_debug(DEBUG_CMD, dptr, "CMD busy unit=%d %x", unit, cmd);
+        sim_debug(DEBUG_CMD, dptr, "CMD busy unit=%d %x\n", unit, cmd);
         uptr->flags |= MT_BUSY;   /* Flag we need to send CUE */
         mt_busy[GET_DEV_BUF(dptr->flags)] |= 2;
         return SNS_BSY;
     }
 
-    sim_debug(DEBUG_CMD, dptr, "CMD unit=%d %x", unit, cmd);
+    sim_debug(DEBUG_CMD, dptr, "CMD unit=%d %x\n", unit, cmd);
 
     switch (cmd & 0xF) {
     case 0x7:              /* Tape motion */