LargePositiveInteger-helper byte-level methods - GNU Smalltalk Library Reference

bytes: byteArray1 from: j compare: byteArray2: Private - Answer the sign of byteArray2 - byteArray1; the j-th byte of byteArray1 is compared with the first of byteArray2, the j+1-th with the second, and so on.
bytes: byteArray1 from: j subtract: byteArray2: Private - Sutract the bytes in byteArray2 from those in byteArray1
bytes: bytes multiply: anInteger: Private - Multiply the bytes in bytes by anInteger, which must be < 255. Put the result back in bytes.
bytesLeftShift: aByteArray: Private - Left shift by 1 place the bytes in aByteArray
bytesLeftShift: aByteArray big: totalShift: Private - Left shift the bytes in aByteArray by totalShift places
bytesLeftShift: aByteArray n: shift: Private - Left shift by shift places the bytes in aByteArray (shift <= 7)
bytesRightShift: aByteArray big: totalShift: Private - Right shift the bytes in aByteArray by totalShift places
bytesRightShift: bytes n: aNumber: Private - Right shift the bytes in `bytes' by 'aNumber' places (shift <= 7)
bytesTrailingZeros: bytes: Private - Answer the number of trailing zero bits in the receiver
primDivide: rhs: Private - Implements Knuth's divide and correct algorithm from `Seminumerical Algorithms' 3rd Edition, section 4.3.1 (which is basically an enhanced version of the divide `algorithm' for two-digit divisors which is taught in primary school!!!)