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https://github.com/a2-4am/4cade.git
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34 lines
1.1 KiB
Bash
34 lines
1.1 KiB
Bash
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#!/bin/bash
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games=$(cat "$1")
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# make temp file with just the key/value pairs (strip blank lines, comments, eof marker)
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records=$(mktemp)
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awk '!/^$|^#|^\[/' > "$records"
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# make temp assembly source file that represents the binary OKVS data structure
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source=$(mktemp)
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(echo "*=0" # dummy program counter for assembler
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echo "!le16 $(wc -l <"$records"), 0" # OKVS header
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while read -r filename; do
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line=$(echo "$games" | awk '/,'"$filename"'=/')
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needsjoystick=$(echo "$line" | cut -c1) # 'requires joystick' flag (0 or 1)
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needs128k=$(echo "$line" | cut -c2) # 'requires 128K' flag (0 or 1)
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echo "!byte ${#filename}+3" # OKVS record length
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echo "!byte ${#filename}" # OKVS key length
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echo "!text \"$filename\"" # OKVS key
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[ -z "$line" ] && \
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echo "!byte 0" || \
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echo "!byte $((needsjoystick*128))+$((needs128k*64))"
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done < "$records") > "$source"
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# assemble temp source file into binary OKVS data structure, then output that
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out=$(mktemp)
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acme -o "$out" "$source"
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cat "$out"
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# clean up
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rm "$out"
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rm "$source"
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rm "$records"
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