Simple Dumping Monitor Library (DumpMon) for Arduino-compatible ATmega microcontroller based boards allow to display either memory, registers and timer dumps and also interrupt vectors table dump.
Beginning since version 0.6 functions of simple symbolic debugger are added.
Being compiled the library requires about 11 KBytes of program memory (15 KBytes for Arduino MEGA). Requirements to RAM memory don't exceed 1 KByte (277 Bytes for dumpmon.pde example, 377 Bytes for dumpmonDebug.pde).