\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Akzelele123123}
\pdfinfo{
  /Title (tolh.pdf)
  /Creator (Cheatography)
  /Author (Akzelele123123)
  /Subject (Tolh Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{858585}
\definecolor{LightBackground}{HTML}{F7F7F7}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Tolh Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Akzelele123123} via \textcolor{DarkBackground}{\uline{cheatography.com/101253/cs/21162/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Akzelele123123 \\
  \uline{cheatography.com/akzelele123123} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 17th November, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4.608 cm} p{0.864 cm} p{0.864 cm} p{0.864 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Registers}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{\%rax}}(Return value) & \%eax & \%ax & \%al \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\bf{\%rsp}}(Stackpointer) & \%esp & \%sp & \%spl \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{\bf{\%rdi}}(1st argument) & \%edi & \%di & \%dil \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
{\bf{\%rsi}}(2nd arg) & \%esi & \%si & \%sil \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
{\bf{\%rdx}}(3rd arg) & \%edx & \%dx & \%dl \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
{\bf{\%rcx}}(4th arg) & \%ecx & \%cx & \%cl \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
{\bf{\%r8}}(5th arg) & \%r8d & \%r8w & \%r8b \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
{\bf{\%r9}}(6th arg) & \%r9d & \%r9w & \%r9b \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
{\bf{\%r10}}(Calle{\bf{r}} saved) & \%r10d & \%r10w & \%r10b \tn 
% Row Count 10 (+ 2)
% Row 9
\SetRowColor{white}
{\bf{\%r11}}(Calle{\bf{r}} saved) & \%r11d & \%r11w & \%r11b \tn 
% Row Count 12 (+ 2)
% Row 10
\SetRowColor{LightBackground}
{\bf{\%rbx}}(Callee saved) & \%ebx & \%bx & \%bl \tn 
% Row Count 13 (+ 1)
% Row 11
\SetRowColor{white}
{\bf{\%rbp}}(Callee saved) & \%ebp & \%bp & \%bpl \tn 
% Row Count 14 (+ 1)
% Row 12
\SetRowColor{LightBackground}
{\bf{\%r12}}(Callee saved) & \%r12d & \%r12w & \%r12b \tn 
% Row Count 16 (+ 2)
% Row 13
\SetRowColor{white}
{\bf{\%r13}}(Callee saved) & \%r13d & \%r13w & \%r13b \tn 
% Row Count 18 (+ 2)
% Row 14
\SetRowColor{LightBackground}
{\bf{\%r14}}(Callee saved) & \%r14d & \%r14w & \%r14b \tn 
% Row Count 20 (+ 2)
% Row 15
\SetRowColor{white}
{\bf{\%r15}}(Callee saved) & \%r15d & \%r15w & \%r15b \tn 
% Row Count 22 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{HDD Geometry}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/akzelele123123_1574008843_New Bitmap Image (2).bmp}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{{\bf{Magnetic Disc Drive}}{\emph{ \newline Seek time: Time to position arm correctly \newline Rotational delay: Time to rotate disk to correct location \newline Transfer time: Time to read wanted data \newline {\bf{Disk capacity}} \newline Bytes per sector }} Sectors per track {\emph{ Tracks per surface }} Surfaces (2) {\emph{ total platters on disk \newline {\bf{Calc}} \newline Average Rotational delay(ms): 30000/RPM \newline Average Seek Time: usually 3-9ms \newline Average Transfer Time: 60/RMP }} 1/Sectors * 1000}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}