1 files changed, 29 insertions, 0 deletions

diff --git a/recipes-bsp/change-file-endianess/change-file-endianess/byte_swap.tcl b/recipes-bsp/change-file-endianess/change-file-endianess/byte_swap.tcl
new file mode 100755
index 00000000..aca956bd
--- /dev/null
+++ b/recipes-bsp/change-file-endianess/change-file-endianess/byte_swap.tcl
@@ -0,0 +1,29 @@
+puts $argv
+set i_file [lindex $argv 0]
+set o_file [lindex $argv 1]
+set num_b  [lindex $argv 2]
+puts ""
+
+set fileid_i [open $i_file "r"]
+set fileid_o [open $o_file "w+"]
+fconfigure $fileid_i -translation {binary binary}
+fconfigure $fileid_o -translation {binary binary}
+
+set old_bin [read $fileid_i]
+set new_bin {}
+for {set i 0} {$i<[string length $old_bin]} {incr i $num_b} {
+        for {set j $num_b} {$j>0} {incr j -1} {
+                append new_bin [string index $old_bin [expr $i+($j-1)]]
+        }
+}
+
+for {set i 0} {$i<[string length $old_bin]} {incr i $num_b} {
+        set binValue [string range $old_bin [expr $i+0] [expr $i+($num_b-1)]]
+        binary scan $binValue H[expr $num_b*2] hexValue
+        
+        set binValue [string range $new_bin [expr $i+0] [expr $i+($num_b-1)]]
+        binary scan $binValue H[expr $num_b*2] hexValue
+}
+
+puts -nonewline $fileid_o $new_bin
+close $fileid_o