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instset.htm
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instset.htm
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<!DOCTYPE html>
<html>
<head>
<font color="#FFFF00">
<meta name="author" content="Mark Craig">
<meta name="description" content="My CPU Instruction Set">
<!-- meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-8"-->
<!-- meta http-equiv="Content-Type" content="text/html;charset=UTF-8" -->
<!-- meta charset="UTF-8"-->
<meta charset="ISO-8859-8">
</head>
<style>
body {
background-color: #101752;
text-shadow: 3px 3px 2px #000000;
}
h1 {
color: #0000FF;
background-color: #a4d7ff;
}
h2 {
color: #FF0000;
background-color: #a4d7ff;
}
table {
display: table;
border-collapse: separate;
border-spacing: 2px;
border-color: grey;
}
</style>
<body bgcolor="#002374">
<!--font face="Times New Roman" size="+2"--!>
<!--font face="Bangle" size="+2"--!>
<!--font face="Courier" size="+2"--!>
<!--font face="Courier New" size="+2"--!>
<!--font face="Sylfaen" size="+2"--!>
<!--font face="Typist" size="+2"--!>
<font face="Courier New" size="+2">
<div class="container">
<center>
<TABLE BORDER=2 bgcolor="#6080c8" VALIGN=center CELLPADDING=4>
<TR>
<TH ALIGN=center><b> OpCode </b></TD>
<TH ALIGN=center><b>Instruction</b></TD>
<TH ALIGN=center><b>Function</b></TD>
</TR>
<TR>
<TD ALIGN=center><b>0</b></TD>
<TD ALIGN=left><b> LOAD I</b></TD>
<TD ALIGN=left><b> Y ⇦ Z</b></TD>
<!--TD ALIGN=left><b> Y <- Z</b></TD--!>
<!--TD ALIGN=left><b> Y ← Z</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>1</b></TD>
<TD ALIGN=left><b> LOAD</b></TD>
<TD ALIGN=left><b> Y ⇦ M(Z)</b></TD>
<!--TD ALIGN=left><b> Y <- M(Z)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>2</b></TD>
<TD ALIGN=left><b> STORE I</b></TD>
<TD ALIGN=left><b> M(Z) ⇦ Y</b></TD>
<!--TD ALIGN=left><b> M(Z) <- Y</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>3</b></TD>
<TD ALIGN=left><b> STORE</b></TD>
<TD ALIGN=left><b> A ⇦ M(Y), Z ⇦ M(A)</b></TD>
<!--TD ALIGN=left><b> A <- M(Y), Z <- M(A)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>4</b></TD>
<TD ALIGN=left><b> ADD I</b></TD>
<TD ALIGN=left><b> Y ⇦ Y + Z</b></TD>
<!--TD ALIGN=left><b> Y <- Y + Z</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>5</b></TD>
<TD ALIGN=left><b> ADD</b></TD>
<TD ALIGN=left><b> Y ⇦ Y + M(Z)</b></TD>
<!--TD ALIGN=left><b> Y <- Y + M(Z)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>6</b></TD>
<TD ALIGN=left><b> SUB I</b></TD>
<TD ALIGN=left><b> Y ⇦ Y - Z</b></TD>
<!--TD ALIGN=left><b> Y <- Y - Z</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>7</b></TD>
<TD ALIGN=left><b> SUB</b></TD>
<TD ALIGN=left><b> Y ⇦ Y - M(Z)</b></TD>
<!--TD ALIGN=left><b> Y <- Y - M(Z)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>8</b></TD>
<TD ALIGN=left><b> JUMP</b></TD>
<TD ALIGN=left><b> PC ⇦ Z</b></TD>
<!--TD ALIGN=left><b> PC <- Z</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>9</b></TD>
<TD ALIGN=left><b> JUMP I (indirect)</b></TD>
<TD ALIGN=left><b> PC ⇦ M(Z)</b></TD>
<!--TD ALIGN=left><b> PC <- M(Z)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>10</b></TD>
<TD ALIGN=left><b> JUMP II (ind.-ind.) </b></TD>
<TD ALIGN=left><b> A ⇦ M(Z), PC ⇦ M(A)</b></TD>
<!--TD ALIGN=left><b> A <- M(Z), PC <- M(A)</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>11</b></TD>
<TD ALIGN=left><b> DATA IN</b></TD>
<TD ALIGN=left><b> Y ⇦ external data</b></TD>
<!--TD ALIGN=left><b> Y <- external data</b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>12</b></TD>
<TD ALIGN=left><b> HALT</b></TD>
<TD ALIGN=left><b> Stop running</b></TD>
</TR>
<TR>
<TD ALIGN=center><b>13</b></TD>
<TD ALIGN=left><b> SKIPNEG</b></TD>
<TD ALIGN=left><b> If Y is negative, PC ⇦ PC + 1 </b></TD>
<!--TD ALIGN=left><b> If Y is negative, PC <- PC + 1 </b></TD--!>
</TR>
<TR>
<TD ALIGN=center><b>14</b></TD>
<TD ALIGN=left><b> STROBE</b></TD>
<TD ALIGN=left><b> Generate STROBE pulse</b></TD>
</TR>
<TR>
<TD ALIGN=center><b>15</b></TD>
<TD ALIGN=left><b> NOOP</b></TD>
<TD ALIGN=left><b> No Operation</b></TD>
</TR>
</TABLE>
</center>
</font>
</div>
</body>
</font>
</html>