mirror of
https://github.com/davidgiven/fluxengine.git
synced 2025-10-31 11:17:01 -07:00
57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
#include "globals.h"
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#include "fmt/format.h"
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#include <fstream>
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static std::fstream inputFile;
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void syntax()
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{
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std::cout << "Syntax: brother240tool <image>\n"
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"The disk image will be flipped from Brother to DOS format and back\n"
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"again.\n";
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exit(0);
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}
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uint8_t getbyte(uint32_t offset)
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{
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inputFile.seekg(offset, std::ifstream::beg);
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return inputFile.get();
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}
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void putbyte(uint32_t offset, uint8_t value)
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{
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inputFile.seekp(offset, std::ifstream::beg);
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inputFile.put(value);
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}
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int main(int argc, const char* argv[])
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{
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if (argc < 2)
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syntax();
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inputFile.open(argv[1], std::ios::in | std::ios::out | std::ios::binary);
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if (!inputFile.is_open())
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Error() << fmt::format("cannot open input file '{}'", argv[1]);
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uint8_t b1 = getbyte(0x015);
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uint8_t b2 = getbyte(0x100);
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if ((b1 == 0x58) && (b2 == 0x58))
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{
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std::cerr << "Flipping from Brother to DOS.\n";
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putbyte(0x015, 0xf0);
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putbyte(0x100, 0xf0);
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}
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else if ((b1 == 0xf0) && (b2 == 0xf0))
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{
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std::cerr << "Flipping from DOS to Brother.\n";
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putbyte(0x015, 0x58);
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putbyte(0x100, 0x58);
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}
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else
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Error() << "Unknown image format.";
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inputFile.close();
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return 0;
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}
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