Evt Script Disassembler

A disassembler for binary evt scripts in a Super Paper Mario RAM dump

For most people this doesn't really offer any advantages over ttydasm, I mostly just made this for fun and also to make certain things easier to automate for myself

Usage

Either run main.py and it will prompt you to enter the script's memory address, or use the command line arguments (recommended)

--ramfile path, -r path

Path to the MEM1 RAM dump, defaults to 'ram.raw' in the current directory if not specified

--address addr, -a addr

Address of the script to disassemble, such as 80e4a688 for aa1_01_init_evt in PAL revision 0

--map path, -m path

Replaces addresses with names from the symbol map file at the specified path where possible

Enabled (using a map with only dol addresses):

user_func evt_mobj_save_blk, 0x80caa8a0, -200, 75, -275, 0x80d0dd60

Disabled:

user_func 0x800fb118, 0x80caa8a0, -200, 75, -275, 0x80d0dd60

--showstrings, -s

Prints the contents of a string instead of its address for supported instructions (currently not supported by evt-assembler)

Enabled:

debug_put_msg "aa1_01_init_evt"

Disabled:

debug_put_msg 80CAC958

--lineaddrs, -l

Prints the memory address of an instruction at the start of the line

Enabled:

80e4a688: debug_put_msg 0x80CAC958

Disabled:

debug_put_msg 0x80CAC958

--nopointer, -n

Prints 'ptr' instead of actual addresses, useful for comparing code from different builds

Enabled:

user_func ptr, 1, 1, ptr, 1073741824

Disabled:

user_func 0x800eb72c, 1, 1, 0x80caa0d0, 1073741824

--ttyd, -t

Changes opcodes and variable bases to their TTYD values

--cpp, -c

Changes the output format to use C/C++ macros (implementations can be found in the evt_cmd.h headers of spm-headers)

--recursive, -e

Disassembles other scripts referenced

Potential Update Plans

• Storing operand types for specific user_funcs for better disassembly

Credits

This is heavily based off of the work by everyone involved in the creation of ttyd-asm