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30 lines
659 B
C
30 lines
659 B
C
#ifndef _BARCODE_H_
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#define _BARCODE_H_
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#include <stdint.h>
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//code128 generator (c) 2021 Dmitry Grinberg https://dmitry.gr
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//non-commercial use only, contact licensing@dmitry.gr for other options
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struct BarcodeInfo { //zero-init this except the string ptr
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const char *str;
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uint16_t curBars;
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uint8_t barsLeft;
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uint8_t state;
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uint8_t csum;
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uint8_t csumMul;
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};
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#define barcodeWidth(nChars) (11 * (nChars) + 11 /*start */+ 11 /*check sum */ + 13 /* stop */)
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#pragma callee_saves barcodeIsDone
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__bit barcodeIsDone(struct BarcodeInfo __xdata *bci);
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#pragma callee_saves barcodeNextBar
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__bit barcodeNextBar(struct BarcodeInfo __xdata *bci);
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#endif
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