mirror of
https://github.com/notwa/rc
synced 2024-06-06 17:33:06 -07:00
53 lines
1000 B
Bash
Executable File
53 lines
1000 B
Bash
Executable File
#!/usr/bin/env zsh
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# YES_ZSH
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sram() { ### @-
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### convert between a couple saveram formats for N64 emulators.
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die() {
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echo -E "$@">&2
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exit 1
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}
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crop() {
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tail -n +$((($1)/16+1))
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}
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revend() {
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objcopy -I binary -O binary --reverse-bytes=4 "$@"
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}
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dump() {
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xxd -ps -c 16 "$@"
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}
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zeros() {
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# one row (16) of zeros
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yes "00000000000000000000000000000000" | head -n $1
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}
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game="$1"
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in="$2"
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out="$3"
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if [[ "$game" == "mm" ]]; then
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headsize=$((0x20800))
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elif [[ "$game" == "oot" ]]; then
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headsize=$((0x40800))
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else
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echo "Unknown game." >&2
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return 1
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fi
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[ -e "$2" ] || die "input save does not exist"
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if [[ "${in##*.}" == "SaveRAM" ]] then
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dump "$in" | crop $headsize | dump -r > "$out"
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else
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cat <(zeros $(($headsize/16))) <(dump "$in") | dump -r > "$out"
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fi
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revend "$out"
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}
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[ -n "${preload+-}" ] || sram "$@"
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