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<html>
<!--
BiT - A Javascript Z80 ASM Editor
Copyright (C) 2006 Rafael de Oliveira Jannone
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Please follow this link: http://www.gnu.org/licenses/gpl.txt
Contact the author by e-mail: rafael@jannone.org
-->
<head>
<title>BiT 0.4.6</title>
<style>
body, td, th {
font-family: verdana, tahoma, arial;
font-size: 13px;
}
th {
text-align: left;
}
body {
background-color: #EEEEEE;
margin: 0 0 0 0;
padding: 0 0 0 0;
overflow-y: hidden;
}
textarea, .fixed {
font-family: SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;
font-size: 13px;
outline: none;
}
.fixed {
white-space: pre;
padding: 2px;
}
.logo {
text-align: right;
font-size: 18px;
font-weight: bold;
background-color: black;
color: white;
padding: 2px;
}
.logo small {
font-size: 8px;
}
.opcodesBody {
background: white;
height: 128px;
overflow-x:hidden;
overflow-y:auto;
}
.opcodesBody[class] {
overflow:-moz-scrollbars-none;
overflow:-moz-scrollbars-vertical;
}
.labDescBody {
font-family: mono, courier new;
font-size: 13px;
}
.float {
background-color: white;
color: black;
border: solid 1px gray;
font-size: 11px;
max-height: 96px;
overflow: auto;
}
.floatItem {
padding: 3px;
}
.floatItemSelected {
padding: 3px;
background-color: navy;
color: white;
}
.download {
text-decoration: none;
color: yellow;
}
.download:hover {
text-decoration: underline;
}
.smallButton, .tool {
padding: 1px;
border-top: solid 1px white;
border-left: solid 1px white;
border-right: solid 1px gray;
border-bottom: solid 1px gray;
}
.tool {
font-size: 10px;
}
.smallButton {
font-size: 9px;
}
.codeMargin {
color: gray;
cursor: pointer;
}
.registers {
width: 256px;
margin-left: auto;
margin-right: auto;
}
.registers td {
font-family: mono, courier new, courier;
}
.regNames {
background-color: lightgray;
color: black;
width: 24px;
text-align: center;
}
.regVals {
background-color: white;
color: black;
}
.labels {
font-size: 11px;
border: solid 1px gray;
}
/* menu CSS effect */
.menuTop, .menuSub ul {
padding: 0; margin: 0;
border-bottom: 1px solid silver;
font: 12px verdana;
}
.menuTop li, .menuSub li {
list-style-type: none;
border: 1px solid silver;
border-width: 1px 1px 0 3px;
position: relative;
margin: 0; padding: 0;
}
.menuTop ul {
display: none;
}
.menuTop li:hover > ul, .menuSub li:hover > ul {
display: block;
position: absolute;
top: -1px; left: 100%;
}
.menuTop > li a, .menuSub > li a {
display: block;
padding: 4px 6px;
text-decoration: none;
background: #FFF;
cursor: pointer;
}
.menuTop li a:hover {
background: orange;
color: white;
}
li.menuSub > a {
cursor: default;
background: #FFE;
}
.menuTop {
float: left;
/*background-color: transparent;*/
border-bottom: none;
}
.menuTop > li:hover > ul {
width: 12em;
top: 1.75em;
left: -3px;
z-index: 1000;
}
.menuTop ul, .menuSub ul {
width: 10em;
}
.menuTop > .menuSub {
border: 0;
}
.menuTop > .menuSub > a {
background-color: transparent;
}
</style>
<script>
/* GDE shared internal functions */
var shared = {};
</script>
<script src='util.js'></script>
<script src='opcodes.js'></script>
<script src='instr.js'></script>
<script src='editor.js'></script>
<script src='asm.js'></script>
<script src='file.js'></script>
<script src='float.js'></script>
<script src='log.js'></script>
<script src='shared.js'></script>
</head>
<body>
<div style='display: none'>
<form id="postForm" action="http://msx.jannone.org/bit/echo.php" method="post" enctype="multipart/form-data" target="postTarget">
<input name="data" type="hidden" id="postData" />
<input name="type" type="hidden" id="postType" />
<input name="name" type="hidden" id="postName" />
</form>
<iframe name="postTarget"></iframe>
</div>
<div id='divTopMenuProto' style='display: none'>
<!-- TOP MENU -->
<ul id='menuFile' class="menuTop" style='width: 3.5em'>
<li class="menuSub"><a>File</a>
<ul>
<li><a onclick='newFile()'>New</a></li>
<li><a onclick='load()'>Load...</a></li>
<input type="file" id="fileInput" style="display: none;">
<li><a onclick='save()'>Save...</a></li>
</ul>
</li>
</ul>
<ul class="menuTop" style='width: 7em'>
<li class="menuSub"><a>Assembler</a>
<ul>
<li><a onclick='build("bin")'>Build BIN...</a></li>
<li><a onclick='build("rom")'>Build ROM...</a></li>
<li><a onclick='findOffset()'>Jump to Offset...</a></li>
<li><a onclick='build("check")'>Check syntax</a></li>
<li><a onclick='preview()'>Preview block</a></li>
<li><a onclick='calcTime()'>Clock / Size</a></li>
</ul>
</li>
</ul>
<!--
<ul class="menuTop" style='width: 5em'>
<li class="menuSub"><a>Debug</a>
<ul>
<li><a onclick='debugStart()'>Start</a></li>
<li><a onclick='debugStop()'>Stop</a></li>
<li><a onclick='debugPause()'>Pause</a></li>
<li><a onclick='debugStep()'>Step</a></li>
<li><a onclick='toggleBreakpoint()'>Toggle Breakpoint</a></li>
</ul>
</li>
</ul>
-->
<ul class="menuTop" style='width: 4em'>
<li class="menuSub"><a>Help</a>
<ul>
<li><a href='faq.html' target='faq'>BiT FAQ</a></li>
<!--<li><a onclick=''>Z80 ASM Reference</a></li>
<li><a onclick=''>About...</a></li>-->
<li><a href='https://github.com/jannone/msx-bitz80' target='gh'>Project on Github</a></li>
</ul>
</li>
</ul>
</div>
<table width='100%' height='100%' cellspacing='0' cellpadding='0'>
<tr>
<!-- TOP MENU PLACEHOLDER -->
<td id='tdTopMenuHolder' colspan='2' style='border-bottom: solid 1px silver'>
<span style='float: left'> </span>
<div id='tblLabels' style='float: right; padding-top: 4px; padding-right: 24px;'>
Jump:
<select class='labels' id='labels' onchange='gotoLabel(this)'></select>
<button class='tool' onclick='gotoLabel(eid("labels"))' >Go</button>
</div>
</td>
<td>
<div class='logo'>
<div style='float: left; font-size: 10px' id='pos'></div>
<div style='float: right'>BiT =] <small>0.4.6</small></div>
<div style='clear: both'></div>
</div>
</td>
</tr>
<tr>
<td id='codeMarginTD' valign='top'>
<div class='codeMargin' id='codeMarginCont' height='500' style='overflow-y: hidden'><div id='codeMargin'></div></div>
</td>
<td width='70%' style='padding: 0px; border-right: solid 1px gray'>
<textarea wrap="off" id='code' name='code' style='width: 100%; height: 100%; border: 0px; padding: 2px' spellcheck="false"></textarea>
</td>
<td valign='top' style='padding: 0px; border-left: solid 1px white'>
<div id='sidePanel' style='height: 500; overflow: auto'>
<div class='info' style='padding: 6px; border-bottom: dashed 1px #aaa'>
<b>Information Panel</b><br />
<small>References appear as you start coding</small>
</div>
<div style='padding: 6px'>
<div id='debug' style='text-align:center'>
<div id='emulator'></div>
<table class='registers' id='registers' style='display: none' cellspacing='0' cellpadding='2'>
<tr style='background-color: navy; color: white'>
<td colspan='6'><small style='font-family: verdana'>Registers</small></td>
</tr>
<tr>
<td class='regNames' valign='top'>
AF<br /> BC<br /> DE<br /> HL
</td>
<td class='regVals' valign='top'>
<span></span><br />
<span></span><br />
<span></span><br />
<span></span><br />
</td>
<td class='regNames' valign='top'>
AF'<br /> BC'<br /> DE'<br /> HL'
</td>
<td class='regVals' valign='top'>
<span></span><br />
<span></span><br />
<span></span><br />
<span></span><br />
</td>
<td class='regNames' valign='top'>
IX<br /> IY<br /> PC<br /> SP
</td>
<td class='regVals' valign='top'>
<span></span><br />
<span></span><br />
<span></span><br />
<span></span><br />
</td>
</tr>
</table>
</div>
<table id='desc' width='100%' cellspacing='0'>
<tr><td id='descTitle' style='padding: 2px; background-color: blue; color: white'></td></tr>
<tr><td id='descBody' style='padding: 2px; background-color: white'></td></tr>
</table>
<table id='opcodes' width='100%' cellspacing='0' style='margin-bottom: 24px; border-bottom: solid 1px gray'>
<thead style='background: lightgray; color: black'>
<th>Variant</th>
<th>Time</th>
<th>Size</th>
</thead>
<tbody id='opcodesBody' class='opcodesBody'></tbody>
</table>
<table id='labDesc' width='100%' cellspacing='0' style='margin-bottom: 24px; border-bottom: solid 1px gray'>
<tr><td id='labDescTitle' style='padding: 2px; background-color: green; color: white'></td></tr>
<tr><td id='labDescBody' style='padding: 2px; background-color: white'></td></tr>
<tr><td id='labDescFile' style='padding: 2px; background-color: #aaa; color: white'></td></tr>
</table>
<table id='warningBox' width='100%' cellspacing='0' style='display: none; margin-bottom: 24px; border-bottom: solid 1px gray'>
<tr><td style='padding: 2px; background-color: yellow; color: black'>Warnings <button class='smallButton' onclick='clearWarnings()'>clear</button></td></tr>
<tr><td id='warningBody' style='padding: 2px; background-color: white; font-size: 10px'></td></tr>
</table>
</div>
</div>
</td>
</tr>
</table>
</body>
<script>
/*
BiT information is based on theses resources:
http://map.tni.nl/resources/z80instr.php
http://fms.komkon.org/comp/CPUs/z80.txt
*/
//---- main app
var bEnableDebugging = false;
var aBreakpoints = {};
var sDebugStatus = null;
var oActiveBreakpoint = null;
var oFloat = new Float();
var currentLabel = null;
/* hide infos */
eid('desc').style.display = 'none';
eid('opcodes').style.display = 'none';
eid('tblLabels').style.display = 'none';
eid('labDesc').style.display = 'none';
var editor = new Editor(eid('code'));
editor.labels = {};
editor.onChangePosition = function(x, y) {
eid('pos').innerHTML = 'Cursor: ' + [x,y];
}
function warning(sHTML) {
var oWarning = eid('warningBox');
var oWarningBody = eid('warningBody');
var oDiv = document.createElement('div');
oDiv.innerHTML = sHTML + ' <button class="smallButton">x</button>';
oDiv.style.borderBottom = 'dotted 1px lightgray';
oDiv.lastChild.onclick = function() {
oWarningBody.removeChild(oDiv);
if (!oWarningBody.firstChild)
oWarning.style.display = 'none';
return false;
}
oWarningBody.appendChild(oDiv);
oWarning.style.display = 'table';
}
function clearWarnings() {
var oWarning = eid('warningBox');
var oWarningBody = eid('warningBody');
oWarning.style.display = 'none';
oWarningBody.innerHTML = '';
}
function showLabelInfo(l) {
if (!l)
return;
var aLabel = editor.labels[l];
if (!aLabel && iDocID != null && parent.shared.bit.aLabels) {
for (var i in parent.shared.bit.aLabels) {
aLabel = parent.shared.bit.aLabels[i][l];
if (aLabel)
break;
}
}
if (!aLabel)
return;
currentLabel = l;
eid('labDescTitle').innerHTML = 'Ref <b>' + l + '</b>';
eid('labDescBody').innerHTML = (aLabel.desc) ?
'<div class="labDescBody">' +
aLabel.desc.replace(/^[ \t]*;/, '').replace(/\n[ \t]*;/g, "\n").replace(/\n/g, '<br />') + '</div>' :
'<i>No comment available</i><br /><small style="color: gray">Tip: write comments before this label</small>';
if (iDocID != null && aLabel.path) {
var aDoc = parent.app.moduleGetDocument(iDocID);
var sJump = '';
if (aLabel.path != aDoc.sPath) {
sJump = ' <button class=\'smallButton\' onclick=\'javascript:parent.app.openDocument("' + aLabel.path + '", "asm", "' + l + '")\'>Go »</button>';
}
eid('labDescFile').innerHTML = '<small>in ' + aLabel.path + sJump + '</small>';
} else {
eid('labDescFile').innerHTML = '';
}
eid('labDesc').style.display = null;
}
function sortByScore(a, b) {
return b.score - a.score;
}
function opcodeScore(opstr, frag) {
opstr = opstr.replace(/ /g, '');
frag = frag.replace(/ /g, '');
for (var i=0; i<opstr.length; i++) {
if (opstr.charAt(i) != frag.charAt(i))
return i;
}
return opstr.length;
}
editor.onCheckKeyword = function(line) {
var m;
// parse label, chop it out
if (m = /^[ \t]*([a-zA-Z0-9_]+)\:/.exec(line)) {
line = line.substr(m[0].length);
var l = m[1];
showLabelInfo(l);
}
// check for calls/jumps to labels
line = line.replace(/^[ \t]*/, '')
var parts = line.split(/[^a-zA-Z0-9_]/);
for (var i=0; i<parts.length; i++) {
var part = parts[i];
showLabelInfo(part);
}
// parse mnemonics
var frag = line.toUpperCase();
var key = frag.split(' ')[0].replace(/[^A-Z]/g, '');
var idx = opcodesIdx[key];
if (!idx)
return;
var klen = key.length;
var tab = [];
var selected = [];
for (var i=idx.start; i <= idx.end; i++) {
if (opcodes[i].op.substr(0, klen) == key) {
var opcode = opcodes[i];
var score = opcodeScore(opcode.op, frag);
selected.push({score: score, opcode: opcode});
}
}
selected.sort(sortByScore);
for (var i=0; i < selected.length; i++) {
var opcode = selected[i].opcode;
tab.push("<tr><td>" + opcode.op + "</td><td>" + opcode.wt + "</td><td>" + opcode.sz + "</td></tr>");
}
if (tab.length) {
eid('opcodesBody').innerHTML = tab.join('');
eid('opcodes').style.display = null;
}
eid('descTitle').innerHTML = '<b>' + key + '</b>';
eid('descBody').innerHTML = idx.desc;
eid('desc').style.display = null;
}
editor.onChange = function() {
var sFilePath = null;
if (iDocID != null) {
var aDoc = parent.app.moduleGetDocument(iDocID);
sFilePath = aDoc.sPath;
parent.app.moduleDocumentChanged(iDocID);
/* use shared scanning, only possible after moduleDocumentChanged */
this.labels = parent.shared.bit.aLabels[aDoc.sPath];
} else {
/* use independant scanning */
this.labels = {};
shared.bit.scanLabels(this.el.value, this.labels, sFilePath);
}
showLabelInfo(currentLabel);
var el = eid('labels');
el.options.length = 0;
for (var l in this.labels) {
var opt = new Option(l, l);
el.options.add(opt);
}
eid('tblLabels').style.display = (el.options.length == 0) ? 'none' : null;
}
editor.onKeyDown = function(e, c) {
//log('editor keydown ' + c);
if (c == 40 && oFloat.isActive()) {
oFloat.focus(editor.el);
return true;
}
}
editor.onKeyUp = function(c) {
//log('editor keyup ' + c);
if (c != 8 && c != 16 && c != 17 && c != 18) {
if (!/[a-z0-9_]/i.exec(String.fromCharCode(c))) {
oFloat.hide();
return;
}
}
var aRange = Sel.getRange(editor.el);
if (aRange.start != aRange.end) {
oFloat.hide();
return;
}
aRange.start = aRange.end - 256; // FIXME: calculate max label size
aRange.start = (aRange.start < 0) ? 0 : aRange.start;
var sText = Sel.getText(editor.el, aRange);
var m;
if (m = /[a-z0-9_]+$/i.exec(sText)) {
var aMatches = {};
var sLabel = m[0];
var iSz = sLabel.length;
var bFound = false;
for (var sKey in this.labels) {
if (sKey != sLabel && sKey.substr(0, iSz) == sLabel) {
aMatches[sKey] = sKey;
bFound = true;
}
}
if (bFound) {
// tab as spaces, for calculation purposes
var iLinePos = scanLeft(sText, sText.length - 1, "\n");
var sLine = sText.substr(iLinePos, sText.length).replace(/\t/g, ' ');
var iX = getOffsetLeft(editor.el), iY = getOffsetTop(editor.el);
oFloat.setup(aMatches);
oFloat.show(iX + (sLine.length - iSz) * 8,
iY + (this.oCursor.y) * 17 - this.el.scrollTop);
oFloat.onChange = function(sText) {
//log('float onchange');
var iTop = editor.el.scrollTop;
var sRemaining = sText.substr(sLabel.length);
Sel.replace(editor.el, sRemaining);
editor.el.scrollTop = iTop;
}
} else {
oFloat.hide();
}
}
}
function gotoLabel(el) {
var label;
if (typeof el == "string") {
label = editor.labels[el];
} else {
var l = el.options[el.selectedIndex].value;
label = editor.labels[l];
}
if (label) {
Sel.setRange(editor.el, label.pos, label.pos);
editor.el.scrollTop = label.line * 13; // FIXME: hard-coded font size
editor.checkPosition();
} else {
alert('Label not found');
}
}
function assemble(sType) {
var sCode = eid('code').value;
var oASM = new ASM();
oASM.aBreakpoints = aBreakpoints;
oASM.sGenType = sType;
try {
oASM.start(sCode);
oASM.evaluateData();
} catch(e) {
alert(e);
Sel.setRange(editor.el, oASM.iPos, oASM.iPos);
editor.el.scrollTop = oASM.iLine * 13; // FIXME: hard-coded font size
editor.checkPosition();
return;
}
oASM.patch();
if (oASM.iExec == null) {
var r = confirm("There's no MAIN label; execution will begin at " +
toHex(oASM.iBegin,4) + "h. Proceed?");
if (!r)
return;
oASM.iExec = oASM.iBegin;
}
var aMem = oASM.aMem;
var aBin = null;
oASM.iPointer--;
switch (sType) {
case 'rom':
aBin = [];
break;
case 'bin':
default:
aBin = [ 0xFE,
oASM.iBegin & 255, (oASM.iBegin >> 8) & 255,
oASM.iPointer & 255, (oASM.iPointer >> 8) & 255,
oASM.iBegin & 255, (oASM.iBegin >> 8) & 255,
];
break;
}
for (var i=0; i<aMem.length; i++) {
if (typeof aMem[i] != 'object')
aBin.push(aMem[i]);
}
// debug
/*
for (var i=0; i<aBin.length; i++) {
aBin[i] = toHex(aBin[i], 2);
}
log(aBin.join(',')); return;
*/
return aBin;
}
function build(sType) {
var aBin = assemble(sType);
if (!aBin)
return;
if (sType == 'check') {
alert('Syntax check successful');
return;
}
if (sType == 'rom') {
// FIXME: when more than 64 kb, check if multiple of 8 kb
// ROMs must be at least 64 kb
while (aBin.length < 65536) {
aBin.push(0);
}
}
if (iDocID != null) {
for (var i=0; i<aBin.length; i++) {
aBin[i] = String.fromCharCode(aBin[i]);
}
var aFile = parent.app.moduleGetDocument(iDocID);
var sPath = aFile.sPath.replace(/\.[^\.]*$/, '') + '.' + sType;
parent.app.moduleGeneration(sPath, aBin.join(''));
} else
if (localAccess) {
for (var i=0; i<aBin.length; i++) {
aBin[i] = String.fromCharCode(aBin[i]);
}
oFile = new File(sType);
File.permission(function() {
oFile.savePicker('Save ' + sType.toUpperCase());
oFile.save(aBin.join(''));
});
} else {
for (var i=0; i<aBin.length; i++) {
aBin[i] = toHex(aBin[i], 2);
}
eid('postData').value = aBin.join('');
eid('postType').value = 'hex';
eid('postForm').submit();
}
}
function findOffset() {
var sCode = eid('code').value;
var sOffset = prompt('Enter offset');
if (sOffset == null)
return;
var iOffset = parseInt(sOffset);
var oASM = new ASM();
oASM.fBreakpoint = function() {
if (oASM.aMem.length >= iOffset) {
alert("Break in " + oASM.aMem.length);
return true;
}
}
try {
oASM.start(sCode);
} catch(e) {
alert(e + " (line " + oASM.getLineNumber() + ")");
}
Sel.setRange(editor.el, oASM.iPos, oASM.iPos);
editor.el.scrollTop = oASM.iLine * 13; // FIXME: hard-coded font size
editor.checkPosition();
}
function calcTime() {
var sCode = Sel.getText(editor.el);
var oASM = new ASM();
try {
oASM.start(sCode);
} catch(e) {
alert(e);
return;
}
if (oASM.aMem.length == 0) {
alert("You must select a block containing Z80 instructions");
} else {
function showTime(aTime) {
return (aTime[0] == aTime[1]) ? aTime[0].toString() : aTime.join("/");
}
var aTotal = [oASM.aTime[0], oASM.aTime[1]];
aTotal[0] += oASM.iM1;
aTotal[1] += oASM.iM1;
alert("Measured time: " + showTime(oASM.aTime) + "\n" +
"Z80 Waitstates: " + oASM.iM1 + "\n" +
"Total time: " + showTime(aTotal) + "\n\n" +
"Code size: " + oASM.aMem.length + " byte" + (oASM.aMem.length == 1 ? '' : 's'));
}
}
function preview() {
var sCode = Sel.getText(editor.el);
var oASM = new ASM();
try {
oASM.start(sCode);
} catch(e) {
alert(e);
return;
}
oASM.evaluateData(true);
oASM.patch(true);
if (oASM.aMem.length == 0) {
alert("You must select a block containing Z80 instructions");
} else {
var aMem = oASM.aMem;
for (var i=0; i<aMem.length; i++) {
if (typeof aMem[i] == 'function')
aMem[i] = '??';
else
aMem[i] = toHex(aMem[i],2);
}
prompt("Preview:", aMem.join(" "));
}
}
function newFile() {
eid('code').value = '';
}
function setupFileLoading() {
document.getElementById('fileInput').addEventListener('change', function(event) {
const file = event.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = function(e) {
editor.el.value = e.target.result;
editor.postChange();
};
reader.readAsText(file);
}
});
}
function load() {
document.getElementById('fileInput').click();
}
function save() {
const textAreaContent = editor.el.value;
const blob = new Blob([textAreaContent], { type: 'text/plain' });
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.download = 'program.asm';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}
function showRegisters() {
var oApplet = eid('emu');
var aRegs = ["AF", "BC", "DE", "HL", "AF'", "BC'", "DE'", "HL'", "IX", "IY", "PC", "SP"];
var aValues = {};
for (var i = 0; i < aRegs.length; i++) {
var sReg = aRegs[i];
aValues[sReg] = oApplet.getRegister(sReg);
}
var aElems = eid('registers').getElementsByTagName('SPAN');
for (var i=0; i<aElems.length; i++) {
var oSpan = aElems[i];
var sReg = aRegs[i];
oSpan.innerHTML = toHex(aValues[sReg], 4);
}
eid('registers').style.display = 'table';
}
function debugStart() {
var oApplet = eid('emu');
if (oActiveBreakpoint) {
oActiveBreakpoint.style.backgroundColor = 'green';
oActiveBreakpoint.style.color = 'white';
oActiveBreakpoint.iMark = 1;
oActiveBreakpoint = null;
}
switch (sDebugStatus) {
case 'running':
if (oApplet)
oApplet.stop();
//eid('debugButton').innerHTML = 'Debug';
sDebugStatus = null;
return;
case 'paused':
// FIXME: set latest breakpoint to green
// FIXME: check whether the code or breakpoints have changed
if (oApplet)
oApplet.start();
//eid('debugButton').innerHTML = 'Stop';
sDebugStatus = 'running';
return;
}
var aBin = assemble('rom');
if (!aBin)
return;
for (var i=0; i<aBin.length; i++) {
aBin[i] = String.fromCharCode(aBin[i]);
}
var sBin = aBin.join('');
//alert("bin [send] = " + sBin.length);
if (bEnableDebugging && !oApplet) {
eid('debug').style.marginBottom = '24px';
sApplet = '<applet id="emu" codebase="jmsx" code="MsxEmu" width="256" height="192" MAYSCRIPT>' +
'<param name="bios" value="jmsx/msx1.rom"><param name="scriptable" value="true">' +
'</applet>';
eid('emulator').innerHTML = sApplet;
oApplet = eid('emu');
oApplet.setBreakpointHandler("onBreakpoint");
}
if (oApplet) {
// FIXME: for some unknown reason, loadString only works before the stop() when creating the applet
oApplet.loadString(sBin);
oApplet.clearBreakpoints();
for (var k in aBreakpoints) {
oApplet.setBreakpoint(aBreakpoints[k], k);
}
oApplet.stop();
oApplet.start();
//eid('debugButton').innerHTML = 'Stop';
sDebugStatus = 'running';
}
}
function onLineClick(e) {
e = e || window.event;
var oDiv = e.currentTarget || e.target || e.srcElement;
toggleBreakpointDiv(oDiv);
}
function toggleBreakpointDiv(oDiv) {
switch (oDiv.iMark) {
case 2:
case 1:
oDiv.style.backgroundColor = '';
oDiv.style.color = '';
oDiv.iMark = 0;
delete aBreakpoints[oDiv.iLine];
break;
case 0:
default:
oDiv.style.backgroundColor = 'green';
oDiv.style.color = 'white';
oDiv.iMark = 1;
aBreakpoints[oDiv.iLine] = true;
break;
}
}
function onBreakpoint(iLine) {
if (iLine != null) {
var oMargin = eid('codeMargin');
var oDiv = oMargin.childNodes[iLine];
oDiv.style.backgroundColor = 'red';
oDiv.style.color = 'white';
oDiv.iMark = 2;
//eid('debugButton').innerHTML = 'Resume';
sDebugStatus = 'paused';
oActiveBreakpoint = oDiv;
showRegisters();
}
}
function setMargin() {
var sText = eid('code').value;
var iLines = 1;
sText.replace(/\n/g, function() { iLines++; });
if (setMargin.iLines != iLines) {
var iFirst = setMargin.iLines || 0;
var oMargin = eid('codeMargin');