Subversion Repositories freemyipod

    def hexdump(self, addr, size, width = 16, wordsize = 1, separate = 4, \

                align = False, relative = False, ascii = True, asciisep = 8):

        """

            Downloads a region of memory from the device and hexdumps it

            <addr>: the address to download the data from

            <size>: the number of bytes to be dumped

            [width]: the number of words per output line

            [wordsize]: the number of bytes per word (little endian)

            [separate]: add an additional space character every [separate] words

            [align]: if true, output lines are aligned to the line size

            [relative]: if true, the addresses displayed are relative to the <addr>, not zero

            [ascii]: add ASCII representations of the bytes to the output

            [asciisep]: add an additional space character every [asciisep] ASCII characters

        """

        addr = to_int(addr)

        size = to_int(size)

        width = to_int(width)

        wordsize = to_int(wordsize)

        separate = to_int(separate)

        align = to_bool(align)

        relative = to_bool(relative)

        ascii = to_bool(ascii)

        asciisep = to_int(asciisep)

        if addr % wordsize != 0: raise ArgumentError("Address is not word aligned!")

        if size % wordsize != 0: raise ArgumentError("Size is not word aligned!")

        if align: skip = addr % (wordsize * width)

        else: skip = 0

        if relative: base = 0

        else: base = addr

        data = self.emcore.read(addr, size)

        for r in range(-skip, size, wordsize * width):

            sys.stdout.write("%08X:" % (base + r))

            for i in range(r, r + wordsize * width, wordsize):

                if i - r > 0 and (i - r) % (separate * wordsize) == 0: sys.stdout.write(" ")

                if i >= 0 and i < size:

                    w = 0

                    for b in range(wordsize):

                        w = (w << 8) | struct.unpack("B", data[i + b])[0]

                    sys.stdout.write((" %%%dX" % (wordsize * 2)) % w)

                else: sys.stdout.write(" " * (wordsize * 2 + 1))

            if ascii:

                sys.stdout.write(" |")

                for i in range(r, r + wordsize * width):

                    if i - r > 0 and (i - r) % asciisep == 0: sys.stdout.write(" ")

                    if i >= 0 and i < size:

                        if ord(data[i]) > 0x1f: sys.stdout.write(data[i])

                        else: sys.stdout.write(".")

                    else: sys.stdout.write(" ")

                sys.stdout.write("|")

            sys.stdout.write("\n")

    @command