debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/tcl/mmr_helpers.tcl

@@ -0,0 +1,72 @@
+
+proc proc_exists { NAME } {
+    set n [info commands $NAME]
+    set l [string length $n]
+    return [expr $l != 0]
+}
+
+# Give: REGISTER name - must be a global variable.
+proc show_mmr32_reg { NAME } {
+
+    global $NAME
+    # we want $($NAME)
+    set a [set [set NAME]]
+
+    if ![catch { set v [memread32 $a] } msg ] {
+	echo [format "%15s: (0x%08x): 0x%08x" $NAME $a $v]
+
+	# Was a helper defined?
+	set fn show_${NAME}_helper
+	if [ proc_exists $fn ] {
+	    # Then call it
+	    $fn $NAME $a $v
+	}
+	return $v;
+    } else {
+	error [format "%s (%s)" $msg $NAME ]
+    }
+}
+
+
+# Give: NAMES - an array of names accessable
+#               in the callers symbol-scope.
+#       VAL - the bits to display.
+
+proc show_mmr32_bits { NAMES VAL } {
+
+    upvar $NAMES MYNAMES
+
+    set w 5
+    foreach {IDX N} $MYNAMES {
+	set l [string length $N]
+	if { $l > $w } { set w $l }
+    }
+
+    for { set x 24 } { $x >= 0 } { incr x -8 } {
+	echo -n "  "
+	for { set y 7 } { $y >= 0 } { incr y -1 } {
+	    set s $MYNAMES([expr $x + $y])
+	    echo -n [format "%2d: %-*s | " [expr $x + $y] $w $s ]
+	}
+	echo ""
+
+	echo -n "  "
+	for { set y 7 } { $y >= 0 } { incr y -1 } {
+	    echo -n [format "    %d%*s | " [expr !!($VAL & (1 << ($x + $y)))] [expr $w -1] ""]
+	}
+	echo ""
+    }
+}
+
+
+proc show_mmr_bitfield { MSB LSB VAL FIELDNAME FIELDVALUES } {
+    set width [expr (($MSB - $LSB + 1) + 7) / 4]
+    set nval [show_normalize_bitfield $VAL $MSB $LSB ]
+    set name0 [lindex $FIELDVALUES 0 ]
+    if [ string compare $name0 _NUMBER_ ] {
+	set sval [lindex $FIELDVALUES $nval]
+    } else {
+	set sval ""
+    }
+    echo [format "%-15s: %d (0x%0*x) %s" $FIELDNAME $nval $width $nval $sval ]
+}