* configure.in: Move test for m68*-est-* before m68*-*-coff*.

* findvar.c:  Move default def of CANNOT_STORE_REGISTER closer to
	the beginning of the code.
	* (write_register_gen):  New routine.  Analogous to
	read_register_gen.
	* (write_register_bytes):  Another rewrite!  Make it smarter about
	not updating regs with the same value.
	* monitor.c (printf_monitor readchar):  Use stderr instead of
	stdout to output debug info.  Also cleanup readchar a little.
	* (expect):  Make sure that excessive responses are null
	terminated.
	* (monitor_open):  Check for magic number in monitor_ops struct.
	Allow multiple commands as init strings.  Also, clear all
	breakpoints.
	* (monitor_resume monitor_wait):  Send a command to dump all the
	regs for those targets which don't do so when waking up after a
	continue command.
	* (monitor_wait):  Handle excessive response output better.
	* (monitor_write_memory):  Use block fill, word, and long word
	commands (if they exist) to write memory more efficiently.
	* General cleanups to use flag bits instead of individual flag
	words in monitor_ops struct.
	* (monitor_command):  Return output from command.
	* (monitor_load_srec):  Allocate buffer only once.  Use alloca.
	Wait for load response string instead of using a timeout to start
	sending S-records.  Fix bug where value of srec_frame shrinks.  If
	hashmark is set, print `-' for retransmissions.  General cleanups.
	* (monitor_make_srec):  Get rid of S-record default type kludge.
	* monitor.h:  Use seperate struct for memory and register
	read/write commands.  Memory commands can come in byte, word,
	long, and longlong forms.
	* (monitor_ops):  Change lots of fields.  Generalize some stuff.
	Put all flags into flags word.  Allow init to be a list of commands.
	Add command for clearing all breakpoints, block fill, dumping all
	registers.
	* remote-est.c:  Rewrite to use new monitor conventions.
	* config/m68k/est.mt (TDEPFILES):  Add monitor.o.
	* config/m68k/tm-est.h:  Set NUM_REGS to 18.
	* testsuite/gdb.base/break.exp:  Lots of cleanups.  Use gdb_test
	more thoroughly.

gdb/testsuite/gdb.base/break.exp

@@ -143,6 +143,9 @@ if !$usestubs then {
   }
 }
 
+gdb_test $cmd "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:56.*56\[\t \]+if .argc.*" \
+	"run until function breakpoint"
+
 #
 # run until the breakpoint at a line number
 #
@@ -192,36 +195,15 @@ expect {
 #
 # test temporary breakpoint at function
 #
-send "tbreak main\n"
-expect {
-    -re "Breakpoint.*at.* file .*$srcfile, line.*$prompt $" {
-	pass "Temporary breakpoint function"
-    }
-    -re ".*$prompt $" {
-	pass "Temporary breakpoint function"
-    }
-    timeout {
-	fail "(timeout) breakpoint function"
-    }
-}
 
+gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 
 #
 # test break at function in file
 #
-send "tbreak $srcfile:factorial\n"
-expect {
-    -re "Breakpoint.*at.* file .*$srcfile, line.*$prompt $" {
-	pass "Temporary breakpoint function in file"
-    }
-    -re ".*$prompt $" {
-	pass "Temporary breakpoint function in file"
-    }
-    timeout {
-	fail "(timeout) breakpoint function in file"
-    }
-}
 
+gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
+	"Temporary breakpoint function in file"
 
 #
 # test break at line number
@@ -233,6 +215,7 @@ expect {
 	timeout	    { fail "(timeout) breakpoint line number" }
 }
 
+gdb_test "tbreak 60" "Breakpoint.*at.* file .*$srcfile, line 60.*" "Temporary breakpoint line number"
 
 #
 # test break at line number in file
@@ -244,6 +227,7 @@ expect {
 	timeout	    { fail "(timeout) breakpoint line number in file" }
 }
 
+gdb_test  "tbreak $srcfile:66" "Breakpoint.*at.* file .*$srcfile, line 66.*" "Temporary breakpoint line number in file"
 
 #
 # check to see what breakpoints are set (temporary this time)
@@ -261,7 +245,6 @@ expect {
     timeout	    { fail "(timeout) Temporary breakpoint info" }
 }
 
-
 proc test_clear_command {} {
     gdb_test "break main" "Breakpoint.*at.*"
     gdb_test "break main" "Breakpoint.*at.*"
@@ -292,11 +275,7 @@ proc test_next_with_recursion {} {
 
     delete_breakpoints
 
-    send "break factorial\n"
-    expect {
-	-re "Breakpoint $decimal at .*$prompt" {}
-	timeout { fail "break at factorial" ; return }
-    }
+    gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 
     # Run until we call factorial with 6
 
@@ -342,18 +321,7 @@ proc test_next_with_recursion {} {
 
     delete_breakpoints
 
-    send "next\n"
-    expect {
-	-re "return .value.;.*$prompt $" {
-	    # Note that the correct behavior is for GDB to *not* print the
-	    # frame.
-	    pass "next over recursive call"
-	}
-	-re ".*$prompt $" {
-	    fail "next over recursive call" ; return
-	}
-	timeout { fail "next over recursive call (timeout)" ; return }
-    }
+    gdb_test next "75\[\t \]+return \\(value\\);.*" "next over recursive call"
 
     # OK, we should be back in the same stack frame we started from.
     # Do a backtrace just to confirm.