Vladimir 'phcoder' Serbinenko c30be3b694 Make Reed-Solomon faster by using power of generator representation of
GF(256)*.

	* grub-core/lib/reed_solomon.c (grub_uint16_t) [TEST]: Removed.
	(gf_double_t): Likewise.
	(gf_invert): Removed.
	(gf_powx): New array.
	(gf_powx_inv): Likewise.
	(scratch): Move higher.
	(gf_reduce): Removed.
	(gf_mul): Use powx.
	(gf_invert): Likewise.
	(init_inverts): Replaced with ...
	(init_powx): ...this. All users updated.
	(pol_evaluate): Replace multiplications with additions.
	(rs_encode): Likewise.
	(gauss_eliminate): Call gf_invert.
	(grub_reed_solomon_add_redundancy): Call init_powx.
	(grub_reed_solomon_recover): Call init_powx unconditionally.
2011-11-13 14:48:19 +01:00
2011-05-15 02:23:36 +02:00
2011-11-08 16:34:35 +01:00
2010-09-21 00:09:23 +01:00
2011-11-11 21:14:41 +01:00
2010-03-30 14:21:48 +02:00
2011-11-08 16:34:35 +01:00
2011-04-22 19:04:21 +02:00
2011-01-11 00:06:01 +01:00
2011-08-13 15:00:48 +02:00
2011-10-16 11:53:27 +02:00
2010-07-13 12:20:32 +01:00

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