The file weighs in at 39.5 MB (41,482,460 bytes), and below are some details from the official site (linked above) for those interested.
The Debugger for PlayStation 3 is an evolution of the SN Systems Debugger which is in use on current generation consoles. The Debugger allows you to view source code, disassembly, memory, registers, variables, processes/threads, TTY and the call stack.
A split-pane system allows unlimited configuration of pane layout. Projects allow persistence of settings specific to each ELF. The Debugger provides comprehensive support for PPU and SPU registers, memory, instructions and opcodes.
The Debugger includes the following features:
• Full support for the processor
Debugging multi-thread PPU applications
Debugging multiple SPU threads simultaneously
Dynamic SPU code loading schemes
Auto synchronization of SPU views as threads are created