This function produces Nb(Nr+1) round keys. The round keys are used in each round to decrypt the states.

* Whitening generator reverse engineered from Sx1272 data stream. * Each bit of a codeword is combined with the output from a different position in

* Diagonal interleaver + deinterleaver **********************************************************************/

* Encode a 4 bit word into a 7 bits with parity. * Non standard version used in sx1272. ************************************************************

returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow.

adds an extra all-255 alpha channel dest == src is legal img_n must be 1 or 3

create the png data from post-deflated data

this function is designed to support animated gifs, although stb_image doesn't support it two back is the image from two frames ago, used for a very s

decode one 64-entry block--

get some unsigned bits

returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow

returns 1 if the product of two ints fits in a signed short, 0 on overflow.

set up the kernels

read 16bit value and convert to 24bit RGB

MixColumns function mixes the columns of the state matrix. The method used to multiply may be difficult to understand for the inexperienced. Please us

The SubBytes Function Substitutes the values in the state matrix with values in an S-box.

MixColumns function mixes the columns of the state matrix

The ShiftRows() function shifts the rows in the state to the left. Each row is shifted with different offset. Offset = Row number. So the first row is

The SubBytes Function Substitutes the values in the state matrix with values in an S-box.

* A more efficient version, for Gray codes of 16 or fewer bits. */

Configures APLL = 480 / 4 = 120 40 * (SDM2 + SDM1/(2^8) + SDM0/(2^16) + 4) / ( 2 * (ODIV+2) ); Datasheet recommends that numerator does not exceed 500

Configures APLL = 480 / 4 = 120 40 * (SDM2 + SDM1/(2^8) + SDM0/(2^16) + 4) / ( 2 * (ODIV+2) ); Datasheet recommends that numerator does not exceed 500