mirror of
https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-11-16 11:27:33 -08:00
79 lines
2.1 KiB
Awk
Executable File
79 lines
2.1 KiB
Awk
Executable File
#!/usr/bin/gawk -f
|
|
|
|
# Usage: tools/free_space.awk [BANK=<bank_spec>] pokecrystal.map
|
|
|
|
# The BANK argument allows printing free space in one, all, or none of the ROM's banks.
|
|
# Valid arguments are numbers (in decimal "42" or hexadecimal "0x2a"), "all" or "none".
|
|
# If not specified, defaults to "none".
|
|
# The `BANK` argument MUST be before the map file name, otherwise it has no effect!
|
|
# Yes: tools/free_space.awk BANK=all pokecrystal.map
|
|
# No: tools/free_space.awk pokecrystal.map BANK=42
|
|
|
|
# Copyright (c) 2020, Eldred Habert.
|
|
# SPDX-License-Identifier: MIT
|
|
|
|
BEGIN {
|
|
nb_banks = 0
|
|
free = 0
|
|
rom_bank = 0 # Safety net for malformed files
|
|
|
|
# Default settings
|
|
# Variables assigned via the command-line (except through `-v`) are *after* `BEGIN`
|
|
BANK="none"
|
|
}
|
|
|
|
# Only accept ROM banks, ignore everything else
|
|
toupper($0) ~ /^[ \t]*ROM[0X][ \t]+BANK[ \t]+#/ {
|
|
nb_banks++
|
|
rom_bank = 1
|
|
split($0, fields, /[ \t]/)
|
|
bank_num = strtonum(substr(fields[3], 2))
|
|
}
|
|
|
|
function register_bank(amount) {
|
|
free += amount
|
|
rom_bank = 0 # Reject upcoming banks by default
|
|
|
|
if (BANK ~ /all/ || BANK == bank_num) {
|
|
printf "Bank %3d: %5d/16384 (%.2f%%)\n", bank_num, amount, amount * 100 / 16384
|
|
}
|
|
}
|
|
function register_bank_str(str) {
|
|
if (str ~ /\$[0-9A-F]+/) {
|
|
register_bank(strtonum("0x" substr(str, 2)))
|
|
} else {
|
|
printf "Malformed number? \"%s\" does not start with '$'\n", str
|
|
}
|
|
}
|
|
|
|
rom_bank && toupper($0) ~ /^[ \t]*EMPTY$/ {
|
|
# Empty bank
|
|
register_bank(16384)
|
|
}
|
|
rom_bank && toupper($0) ~ /^[ \t]*SLACK:[ \t]/ {
|
|
# Old (rgbds <=0.6.0) end-of-bank free space
|
|
register_bank_str($2)
|
|
}
|
|
rom_bank && toupper($0) ~ /^[ \t]*TOTAL EMPTY:[ \t]/ {
|
|
# New (rgbds >=0.6.1) total free space
|
|
register_bank_str($3)
|
|
}
|
|
|
|
END {
|
|
# Determine number of banks, by rounding to upper power of 2
|
|
total_banks = 2 # Smallest size is 2 banks
|
|
while (total_banks < nb_banks) {
|
|
total_banks *= 2
|
|
}
|
|
|
|
# RGBLINK omits "trailing" ROM banks, so fake them
|
|
bank_num = nb_banks
|
|
while (bank_num < total_banks) {
|
|
register_bank(16384)
|
|
bank_num++
|
|
}
|
|
|
|
total = total_banks * 16384
|
|
printf "Free space: %5d/%5d (%.2f%%)\n", free, total, free * 100 / total
|
|
}
|