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Rev 378 Rev 380
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        f->getvicsource = getvicsource;
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        f->getvicsource = getvicsource;
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        fifo_purge(f);
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        fifo_purge(f);
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        return(1);
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        return(1);
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}
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}
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u8 fifo_put (fifo_t *f, const u8 data)
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u8 fifo_put(fifo_t *f, const u8 data)
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{
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{
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        if(f->buffer == 0) return(0);
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        if(f->buffer == 0) return(0);
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        if (f->count >= f->size) return(0);     // return 0 in case of FIFO overflow.
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        if (f->count >= f->size) return(0);     // return 0 in case of FIFO overflow.
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        if(f->putvicsource != NO_ITLine) VIC_ITCmd(f->putvicsource, DISABLE);
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        if(f->putvicsource != NO_ITLine) VIC_ITCmd(f->putvicsource, DISABLE);