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register_conversion.html
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register_conversion.html
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<!DOCTYPE HTML>
<html>
<head>
<link rel="stylesheet" type="text/css" href="css/AmigaFontEditor.css">
<script src="js/AmigaFontEditor.js"></script>
<script src="js/AmigaRegisters.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjs/4.2.2/math.min.js"></script>
</head>
<body>
<a href="https://github.com/Ozzyboshi/AmigaFontEditor"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/652c5b9acfaddf3a9c326fa6bde407b87f7be0f4/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6f72616e67655f6666373630302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_orange_ff7600.png"></a>
<div class="topnav">
<a href="index.html">Fonts</a>
<a href="index_sprite.html">Sprite</a>
<a href="index_sprite_position.html">Sprite position</a>
<a class="active" href="#">Register conversion</a>
<a href="copperlist_translator.html">Copperlist translator</a>
<a href="diwstartstop.html">Diwstart/stop</a>
<a href="projection.html">Point Projection</a>
<a href="trigonometry.html">Trigonometric tables</a>
<a href="raw2planar.html">Raw 2 planar viewer</a>
<a href="rgbcolors.html">RGB Colors</a>
<a href="sqrt.html">Square root tables</a>
<a href="deltas.html">Deltas table calculator</a>
<a href="number_interpreter.html">Number interpreter</a>
<a href="rawdiff.html">Raw diff</a>
</div>
<h2>Amiga register reader</h2>
<div id="content" style="padding:25px">
<p><input type=text size=4 maxlength=4 id=hex value=0000> Hex value
<p><select size=1 id=register> Register
</select>
<p><input type=button value=Convert id=convert>
<ul>
<li id=bit15>Bit 15</li>
<li id=bit14>Bit 14</li>
<li id=bit13>Bit 13</li>
<li id=bit12>Bit 12</li>
<li id=bit11>Bit 11</li>
<li id=bit10>Bit 10</li>
<li id=bit9>Bit 9</li>
<li id=bit8>Bit 8</li>
<li id=bit7>Bit 7</li>
<li id=bit6>Bit 6</li>
<li id=bit5>Bit 5</li>
<li id=bit4>Bit 4</li>
<li id=bit3>Bit 3</li>
<li id=bit2>Bit 2</li>
<li id=bit1>Bit 1</li>
<li id=bit0>Bit 0</li>
</ul>
<p><pre id=note>Note :</pre>
</div>
<script>
// Init selectbox
for (var registerIndex in AMIGAREGISTERS)
{
var register=AMIGAREGISTERS[registerIndex];
var option = document.createElement("option");
option.value = register.address;
option.text = register.address+" ("+register.name+") - "+register.description;
document.querySelector("#register").appendChild(option);
}
document.querySelector("#convert").addEventListener('click',setfunctionforclick,false);
function setfunctionforclick()
{
var note="Note :";
//var register=registerDesc[document.querySelector("#register").value];
var register=[];
for (var registerIndex in AMIGAREGISTERS)
{
register=AMIGAREGISTERS[registerIndex].bits;
//if (AMIGAREGISTERS[registerIndex].note!=undefined) note+=AMIGAREGISTERS[registerIndex].note;
if (document.querySelector("#register").value==AMIGAREGISTERS[registerIndex].address)
{
if (AMIGAREGISTERS[registerIndex].note!=undefined)
note+=AMIGAREGISTERS[registerIndex].note;
break
};
}
// Read ad crunch
var hexValue=parseInt(document.querySelector("#hex").value,16);
var binaryValue=hexValue.toString(2);
//console.log("bin:"+binaryValue);
//console.log("binlength:"+binaryValue.length);
binaryValueLength=binaryValue.length
for (var i=0;i<16-binaryValueLength;i++)
{
binaryValue="0"+binaryValue;
}
//console.log("bin:"+binaryValue);
//console.log("binlength:"+binaryValue.length);
for (var i=0;i<16;i++)
{
var bitNum=15-i;
var selector="bit"+bitNum;
if (binaryValue[i]=='1') document.querySelector("#"+selector+"").innerHTML='<div style="display:inline-flex;width:100px">Bit '+bitNum+"</div><div id=value"+bitNum+" style='display:inline-flex;width:100px;color:red;font-weight:bold'>"+binaryValue[i]+"</div>";
else document.querySelector("#"+selector+"").innerHTML='<div style="display:inline-flex;width:100px">Bit '+bitNum+"</div><div id=value"+bitNum+" style='display:inline-flex;width:100px'>"+binaryValue[i]+"</div>";
document.querySelector("#"+selector+"").innerHTML+="<div style='display:inline-flex;width:100px'><input type=button class=changestate value='Change' bit="+bitNum+"></div>";
if (register[bitNum]!=undefined)
document.querySelector("#"+selector+"").innerHTML+= "<div style='display:inline-flex;width:300px'>"+register[bitNum].name+ "</div><pre style='margin:auto;width:50%;display:inline-flex;border:0px;'>"+register[bitNum].description+"</pre>";
}
document.querySelector("#note").innerHTML=note;
var changeBtns=document.querySelectorAll(".changestate");
for (var i=0;i<changeBtns.length;i++)
document.querySelectorAll(".changestate")[i].addEventListener('click',setfunctionChangeState,false);
}
function setfunctionChangeState()
{
//console.log(this);
var bitStr="";
for (var i=15;i>=0;i--)
{
var oldBit=document.querySelector("#value"+i).innerHTML;
var changeBit=false;
//console.log(i+" "+oldBit);
if (i==this.getAttribute("bit"))
changeBit=true;
if (changeBit)
{
if (oldBit==0) bitStr+="1";
else bitStr+="0";
}
else bitStr+=oldBit;
}
/*console.log(bitStr);
console.log(binaryToHex(bitStr));*/
document.querySelector("#hex").value=binaryToHex(bitStr).result;
document.querySelector("#convert").click();
}
function binaryToHex(s) {
var i, k, part, accum, ret = '';
for (i = s.length-1; i >= 3; i -= 4) {
// extract out in substrings of 4 and convert to hex
part = s.substr(i+1-4, 4);
accum = 0;
for (k = 0; k < 4; k += 1) {
if (part[k] !== '0' && part[k] !== '1') {
// invalid character
return { valid: false };
}
// compute the length 4 substring
accum = accum * 2 + parseInt(part[k], 10);
}
if (accum >= 10) {
// 'A' to 'F'
ret = String.fromCharCode(accum - 10 + 'A'.charCodeAt(0)) + ret;
} else {
// '0' to '9'
ret = String(accum) + ret;
}
}
// remaining characters, i = 0, 1, or 2
if (i >= 0) {
accum = 0;
// convert from front
for (k = 0; k <= i; k += 1) {
if (s[k] !== '0' && s[k] !== '1') {
return { valid: false };
}
accum = accum * 2 + parseInt(s[k], 10);
}
// 3 bits, value cannot exceed 2^3 - 1 = 7, just convert
ret = String(accum) + ret;
}
return { valid: true, result: ret };
}
</script>
</body>
</html>