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24 lines
809 B
24 lines
809 B
/*
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* This code was written by Rich Felker in 2010; no copyright is claimed.
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* This code is in the public domain. Attribution is appreciated but
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* unnecessary.
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*/
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#define bittab __fsmu8
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#if 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined(__PCC__) || defined(__TINYC__)
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extern const uint32_t bittab[] __attribute__((visibility("hidden")));
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#else
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extern const uint32_t bittab[];
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#endif
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/* Upper 6 state bits are a negative integer offset to bound-check next byte */
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/* equivalent to: ( (b-0x80) | (b+offset) ) & ~0x3f */
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#define OOB(c,b) (((((b)>>3)-0x10)|(((b)>>3)+((int32_t)(c)>>26))) & ~7)
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/* Interval [a,b). Either a must be 80 or b must be c0, lower 3 bits clear. */
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#define R(a,b) ((uint32_t)((a==0x80 ? 0x40-b : -a) << 23))
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#define FAILSTATE R(0x80,0x80)
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#define SA 0xc2u
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#define SB 0xf5u
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