46 lines
1.7 KiB
TeX
46 lines
1.7 KiB
TeX
\documentclass[12pt]{article}
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\usepackage[utf8]{inputenc}
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\usepackage[margin=2cm]{geometry}
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\usepackage{graphicx}
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\title{Howework 7 -- Computer Architecture}
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\author{Claudio Maggioni \and Tommaso Rodolfo Masera}
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\begin{document}
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\maketitle
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\section{Question 1}
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Please find our solutions in the file \verb|mighty_excel_spreadsheet.ods|.
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\section{Question 2}
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Please find our solutions in the file \verb|mighty_excel_spreadsheet.ods|.
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\section{Question 3}
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\subsection{Question 3.1}
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\paragraph{Prefix Notation:}
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$(-\hspace{5px}(/ \times A\hspace{5px}(+\hspace{5px}B\hspace{5px}C))\hspace{5px}D)\hspace{5px}E)$
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\paragraph{Postfix Notation:}
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$(((A\hspace{5px}(B\hspace{5px}C\hspace{5px}+)\hspace{5px}\times)\hspace{5px}D\hspace{5px}/ )\hspace{5px}E\hspace{5px}- )$
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\subsection{Question 3.2}
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The outputs \emph{N} and \emph{Z} are used for conditional branching for instructions such as IFEQ, IFLT and IF\_ICMPEQ.
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The microcode for these instructions would probably use the JAMZ and JAMN bits to determine the next microinstruction to execute.
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For example, IFEQ would subtract from the value in the topmost element in the stack the value below in order to trigger the \emph{Z} bit.
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If the two values are equal, then \emph{Z} is set and, if the most significant value of NEXT\_ADDRESS is 0 and the JAMZ bit is set, the control store would load the microinstruction at $NEXT\_ADDRESS + 256$.
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Otherwise, the control store would load the microinstruction at NEXT\_ADDRESS.
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\subsection{Question 3.3}
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Please find our solution in the attached \texttt3.3.circ Logisim file.
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\begin{figure}[h]
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\centering
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\includegraphics[width=0.8\textwidth]{3-3.png}
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\caption{The High Bit component of the MIC-1}
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\end{figure}
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\end{document} |