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Shared Functions.Crc Pseudocode
Library pseudocode for shared/functions/crc/BitReverse
// BitReverse() // ============ bits(N) BitReverse(bits(N) data) bits(N) result; for i = 0 to N-1 result<N-i-1> = data<i>; return result;
Library pseudocode for shared/functions/crc/HaveCRCExt
// HaveCRCExt() // ============ boolean HaveCRCExt() return HasArchVersion(ARMv8p1) || boolean IMPLEMENTATION_DEFINED "Have CRC extension";
Library pseudocode for shared/functions/crc/Poly32Mod2
// Poly32Mod2()
// ============
// Poly32Mod2 on a bitstring does a polynomial Modulus over {0,1} operation
bits(32) Poly32Mod2(bits(N) data, bits(32) poly)
assert N > 32;
for i = N-1 downto 32
if data<i> == '1' then
data<i-1:0> = data<i-1:0> EOR (poly:Zeros(i-32));
return data<31:0>;