Make AWK script gawk-compatible.
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# Pipe main.map into this to get ROM size info.
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/^CODE/ { code_start = ("0x" $2) + 0 }
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# https://stackoverflow.com/a/32437561/211234
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function parse_hex(hex_string) {
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if (hex_string ~ /^0x/) {
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hex_string = substr(hex_string, 3)
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}
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/^RODATA/ { rodata_end = ("0x" $3) + 0 }
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value = 0
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for (i = 1; i <= length(hex_string); i++) {
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value = value*16 + H[substr(hex_string, i, 1)]
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}
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/^VECTORS/ { vectors_start = ("0x" $2) + 0 }
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return value
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}
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BEGIN {
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# Build map from hex digit to value.
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for (i = 0; i < 16; i++) {
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H[sprintf("%x",i)] = i
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H[sprintf("%X",i)] = i
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}
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}
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/^CODE/ { code_start = parse_hex($2) }
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/^RODATA/ { rodata_end = parse_hex($3) }
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/^VECTORS/ { vectors_start = parse_hex($2) }
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END {
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code = rodata_end - code_start + 1
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