diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c39a47b6c1..b71aaa0776 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+Tue Nov 15 14:25:47 1994  Stan Shebs  (shebs@andros.cygnus.com)
+
+	* i386-stub.c, m68k-stub.c, sparc-stub.c, sparcl-stub.c: Mask out
+	the top bit returned by getDebugChar.
+
 Tue Nov 15 01:03:56 1994  Rob Savoye  (rob@slipknot.cygnus.com)
 
 	* op50-rom.c, w89k-rom.c, monitor.c: Modify to usr two variables
diff --git a/gdb/sparc-stub.c b/gdb/sparc-stub.c
index d2e7b438a8..135f51e483 100644
--- a/gdb/sparc-stub.c
+++ b/gdb/sparc-stub.c
@@ -298,7 +298,7 @@ getpacket(buffer)
   do
     {
       /* wait around for the start character, ignore all other characters */
-      while ((ch = getDebugChar()) != '$') ;
+      while ((ch = (getDebugChar() & 0x7f)) != '$') ;
 
       checksum = 0;
       xmitcsum = -1;
@@ -308,7 +308,7 @@ getpacket(buffer)
       /* now, read until a # or end of buffer is found */
       while (count < BUFMAX)
 	{
-	  ch = getDebugChar();
+	  ch = getDebugChar() & 0x7f;
 	  if (ch == '#')
 	    break;
 	  checksum = checksum + ch;
@@ -323,8 +323,8 @@ getpacket(buffer)
 
       if (ch == '#')
 	{
-	  xmitcsum = hex(getDebugChar()) << 4;
-	  xmitcsum |= hex(getDebugChar());
+	  xmitcsum = hex(getDebugChar() & 0x7f) << 4;
+	  xmitcsum |= hex(getDebugChar() & 0x7f);
 #if 0
 	  /* Humans shouldn't have to figure out checksums to type to it. */
 	  putDebugChar ('+');
@@ -381,7 +381,7 @@ putpacket(buffer)
       putDebugChar(hexchars[checksum & 0xf]);
 
     }
-  while (getDebugChar() != '+');
+  while ((getDebugChar() & 0x7f) != '+');
 }
 
 static char remcomInBuffer[BUFMAX];
diff --git a/gdb/sparcl-stub.c b/gdb/sparcl-stub.c
index ddcf246878..fa63ef13fd 100644
--- a/gdb/sparcl-stub.c
+++ b/gdb/sparcl-stub.c
@@ -375,7 +375,7 @@ getpacket(buffer)
   do
     {
       /* wait around for the start character, ignore all other characters */
-      while ((ch = getDebugChar()) != '$') ;
+      while ((ch = (getDebugChar() & 0x7f)) != '$') ;
 
       checksum = 0;
       xmitcsum = -1;
@@ -385,7 +385,7 @@ getpacket(buffer)
       /* now, read until a # or end of buffer is found */
       while (count < BUFMAX)
 	{
-	  ch = getDebugChar();
+	  ch = getDebugChar() & 0x7f;
 	  if (ch == '#')
 	    break;
 	  checksum = checksum + ch;
@@ -400,8 +400,8 @@ getpacket(buffer)
 
       if (ch == '#')
 	{
-	  xmitcsum = hex(getDebugChar()) << 4;
-	  xmitcsum |= hex(getDebugChar());
+	  xmitcsum = hex(getDebugChar() & 0x7f) << 4;
+	  xmitcsum |= hex(getDebugChar() & 0x7f);
 #if 0
 	  /* Humans shouldn't have to figure out checksums to type to it. */
 	  putDebugChar ('+');
@@ -458,7 +458,7 @@ putpacket(buffer)
       putDebugChar(hexchars[checksum & 0xf]);
 
     }
-  while (getDebugChar() != '+');
+  while ((getDebugChar() & 0x7f) != '+');
 }
 
 static char remcomInBuffer[BUFMAX];