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2016 Update

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This commit is contained in:
Tina Müller 2016-12-05 22:15:40 +01:00
parent 948b86eafa
commit dcf5d15da3
7965 changed files with 139854 additions and 31002 deletions
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0
Task/Bitwise-operations/Common-Lisp/bitwise-operations.lisp → Task/Bitwise-operations/Common-Lisp/bitwise-operations-1.lisp
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Task/Bitwise-operations/Common-Lisp/bitwise-operations-2.lisp Normal file
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(defun shl (x width bits)
"Compute bitwise left shift of x by 'bits' bits, represented on 'width' bits"
(logand (ash x bits)
(1- (ash 1 width))))
(defun shr (x width bits)
"Compute bitwise right shift of x by 'bits' bits, represented on 'width' bits"
(logand (ash x (- bits))
(1- (ash 1 width))))

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Task/Bitwise-operations/Common-Lisp/bitwise-operations-3.lisp Normal file
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(defun rotl (x width bits)
"Compute bitwise left rotation of x by 'bits' bits, represented on 'width' bits"
(logior (logand (ash x (mod bits width))
(1- (ash 1 width)))
(logand (ash x (- (- width (mod bits width))))
(1- (ash 1 width)))))
(defun rotr (x width bits)
"Compute bitwise right rotation of x by 'bits' bits, represented on 'width' bits"
(logior (logand (ash x (- (mod bits width)))
(1- (ash 1 width)))
(logand (ash x (- width (mod bits width)))
(1- (ash 1 width)))))