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28 lines
500 B
C++
28 lines
500 B
C++
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#include "snes_clk.h"
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#include <SdFat.h>
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int32_t readClockOffset() {
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File clock_file;
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unsigned char* clock_buf;
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int16_t i;
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int32_t clock_offset;
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if(!clock_file.open("/snes_clk.txt", FILE_READ)) {
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return INT32_MIN;
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}
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clock_buf = malloc(16 * sizeof(char));
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i = clock_file.read(clock_buf, 16);
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clock_file.close();
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if(i == -1) {
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free(clock_buf);
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return 0;
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} else if(i < 16) {
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clock_buf[i] = 0;
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}
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clock_offset = (int32_t)atoi(clock_buf);
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free(clock_buf);
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return clock_offset;
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}
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