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<html><head>
<title>yosys.js example application</title>
</head><body onload="document.getElementById('command').focus()">
<h1>yosys.js example application</h1>
<div id="tabs"></div>
<div><textarea id="output" style="width: 100%" rows="30" cols="100"></textarea></div>
<div id="wait" style="display: block"><br/><b><span id="waitmsg">Loading...</span></b></div>
<div id="input" style="display: none"><form onsubmit="window.setTimeout(run_command); return false"><tt><span id="prompt">
</span></tt><input id="command" type="text" style="font-family: monospace; font-weight: bold;" size="100"></form></div>
<script type='text/javascript'>
var got_log_messages = false;
var Module = {
print: (function() {
var element = document.getElementById('output');
if (element) element.value = ''; // clear browser cache
return function(text) {
if (!got_log_messages) {
window.setTimeout(startup, 50);
got_log_messages = true;
}
if (element && typeof(text) != "number") {
element.value += text + "\n";
element.scrollTop = element.scrollHeight; // focus on bottom
}
};
})(),
printErr: (function() {
var element = document.getElementById('output');
if (element) element.value = ''; // clear browser cache
return function(text) {
if (element && typeof(text) != "number") {
console.log(text);
if (got_log_messages) {
element.value += text + "\n";
element.scrollTop = element.scrollHeight; // focus on bottom
}
}
};
})(),
};
var current_file = "";
var console_messages = "";
function update_tabs() {
var f, html = "", flist = FS.readdir('.');
if (current_file == "") {
html += '<tt>[ <b>Console</b>';
} else {
html += '<tt>[ <span onclick="open_file(\'\')">Console</span>';
}
for (i in flist) {
f = flist[i]
if (f == "." || f == "..")
continue;
if (current_file == f) {
html += ' | <b>' + f + '</b>';
} else {
html += ' | <span onclick="open_file(\'' + f + '\')">' + f + '</span>';
}
}
html += ' | <span onclick="open_file(prompt(\'Filename:\'))">new file</span> ]</tt>';
document.getElementById('tabs').innerHTML = html;
if (current_file == "") {
document.getElementById('output').readOnly = true;
document.getElementById('command').focus();
} else {
document.getElementById('output').readOnly = false;
document.getElementById('output').focus();
}
}
function open_file(filename)
{
if (current_file == "")
console_messages = document.getElementById('output').value;
else
FS.writeFile(current_file, document.getElementById('output').value, {encoding: 'utf8'});
if (filename == "") {
document.getElementById('output').value = console_messages;
} else {
try {
document.getElementById('output').value = FS.readFile(filename, {encoding: 'utf8'});
} catch (e) {
document.getElementById('output').value = "";
FS.writeFile(filename, document.getElementById('output').value, {encoding: 'utf8'});
}
}
current_file = filename;
update_tabs()
}
function startup() {
document.getElementById('wait').style.display = 'none';
document.getElementById('input').style.display = 'block';
document.getElementById('waitmsg').innerText = 'Waiting for yosys.js...';
document.getElementById('prompt').innerText = yosys_prompt();
FS.mkdir('/work')
FS.chdir('/work')
update_tabs();
console.log('yosys.js loaded.');
}
function yosys_command(cmd) {
Module.ccall('run', '', ['string'], [cmd])
}
function yosys_prompt() {
return Module.ccall('prompt', 'string', [], [])
}
function run_command() {
var cmd = document.getElementById('command').value;
document.getElementById('command').value = '';
open_file('');
Module.print(yosys_prompt() + cmd);
document.getElementById('wait').style.display = 'block';
document.getElementById('input').style.display = 'none';
function run_command_bh() {
try {
yosys_command(cmd);
} catch (e) {
Module.print('Caught JavaScript exception. (see JavaScript console for details.)');
console.log(e);
}
document.getElementById('wait').style.display = 'none';
document.getElementById('input').style.display = 'block';
document.getElementById('prompt').innerText = yosys_prompt();
update_tabs();
}
window.setTimeout(run_command_bh, 50);
return false;
}
</script>
<script async type="text/javascript" src="yosys.js"></script>
</body></html>
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