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YosysJS stuff

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Clifford Wolf 2015-02-19 13:36:54 +01:00
parent 08c0fe164f
commit e0e6d130cd
7 changed files with 156 additions and 16 deletions
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103
misc/yosysjs/demo03.html Normal file
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@ -0,0 +1,103 @@
<html><head>
<title>YosysJS Example Application #02</title>
<script type="text/javascript" src="yosysjs.js"></script>
<script src="http://wavedrom.com/skins/default.js" type="text/javascript"></script>
<script src="http://wavedrom.com/WaveDrom.js" type="text/javascript"></script>
<style type="text/css">
.noedit { color: #666; }
</style>
<script id="golden_verilog" type="text/plain">
module ref(input clk, reset, input [7:0] A, output reg [7:0] Y);
always @(posedge clk) begin
if (reset)
Y <= 0;
else
Y <= ((Y << 5) + Y) ^ A;
end
endmodule
</script>
</head><body>
<div id="popup" style="position: fixed; left: 0; top: 0; width:100%; height:100%; text-align:center; z-index: 1000;
background-color: rgba(100, 100, 100, 0.5);"><div style="width:300px; margin: 200px auto; background-color: #88f;
border:3px dashed #000; padding:15px; text-align:center;"><span id="popupmsg">Loading...</span></div>
</div>
<h1>YosysJS Example Application #03</h1>
<b>Your mission:</b> Create a behavioral Verilog model for the following circuit:
<p/>
<svg id="schem" width="800"></svg>
<p/>
<pre id="code" style="width: 800px; border:2px solid #000; padding: 0.5em;"><span class="noedit">module top(input clk, reset, input [7:0] A, output reg [7:0] Y);
always @(posedge clock) begin</span><span class="edit" contenteditable="true">
Y &lt;= A | {4{reset}};
</span><span class="noedit">end
endmodule</span></pre><p/>
<input type="button" value="Check Model" onclick="check_model()"> <span id="checkmessage"></span>
<p/>
<p id="wave">&nbsp;</p>
<script type="text/javascript">
function on_ys_ready() {
ys.write_file('golden.v', document.getElementById('golden_verilog').textContent);
ys.run('echo on; read_verilog golden.v; proc;;');
ys.run('show -notitle -width -stretch');
YosysJS.dot_into_svg(ys.read_file('show.dot'), 'schem');
document.getElementById('popup').style.visibility = 'hidden';
document.getElementById('popupmsg').textContent = 'Please wait..';
}
function check_model() {
function work() {
ys.remove_file('wave.json');
ys.write_file('code.v', document.getElementById('code').textContent);
ys.errmsg = '';
ys.run('design -reset; read_verilog code.v; hierarchy -top top; proc; opt; flatten; hierarchy; ' +
'read_verilog golden.v; proc; miter -equiv -ignore_gold_x -make_outputs -flatten ref top miter; ' +
'hierarchy -top miter; clean -purge; sat -set-init-undef -seq 8 -dump_json wave.json -show-ports ' +
'-max_undef -prove trigger 0 miter');
w = document.getElementById('wave')
if (ys.errmsg) {
w.innerHTML = '<b><pre>ERROR: ' + ys.errmsg.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;') + '</pre></b>';
} else {
wdata = ys.read_file('wave.json');
if (wdata) {
console.log(wdata)
wdata = JSON.parse(wdata);
function wsignal(signame, newname) {
for (i = 0; i < wdata["signal"].length; i++)
if (wdata["signal"][i].name == signame) {
if (newname)
wdata["signal"][i].name = newname;
return wdata["signal"][i];
}
return {};
}
wdata2 = {
"signal" : [
{ name: 'clk', wave: 'P........' },
wsignal("trigger"),
{},
[ "Inputs", wsignal("in_reset", "reset"), wsignal("in_A", "A") ],
{},
[ "Y Output", wsignal("gold_Y", "Ref"), wsignal("gate_Y", "UUT") ],
],
"config" : wdata["config"]
};
wdata2 = JSON.stringify(wdata2)
console.log(wdata2)
w.innerHTML = '<b>The model did not pass verification:</b><p/>' +
'<script type="WaveDrom">' + wdata2 + '<\/script>';
WaveDrom.ProcessAll();
} else {
w.innerHTML = '<b>Congratulations! The model did pass verification.</b><p/>';
}
}
document.getElementById('popup').style.visibility = 'hidden';
}
document.getElementById('popup').style.visibility = 'visible';
window.setTimeout(work, 100);
}
YosysJS.load_viz();
var ys = YosysJS.create('', on_ys_ready);
ys.logprint = true;
ys.echo = true;
</script>
</body></html>

19
misc/yosysjs/yosysjs.js
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@ -45,6 +45,7 @@ var YosysJS = new function() {
ys.verbose = false;
ys.logprint = false;
ys.echo = false;
ys.errmsg = "";
if (typeof(reference_element) == 'string' && reference_element != "")
reference_element = document.getElementById(reference_element);
@ -151,12 +152,20 @@ var YosysJS = new function() {
ys.write("");
ys.write(ys.prompt() + cmd);
}
mod.ccall('run', '', ['string'], [cmd]);
try {
mod.ccall('run', '', ['string'], [cmd]);
} catch (e) {
ys.errmsg = mod.ccall('errmsg', 'string', [], []);;
}
return ys.print_buffer;
}
ys.read_file = function(filename) {
return ys.window.FS.readFile(filename, {encoding: 'utf8'});
try {
return ys.window.FS.readFile(filename, {encoding: 'utf8'});
} catch (e) {
return "";
}
}
ys.write_file = function(filename, text) {
@ -167,6 +176,12 @@ var YosysJS = new function() {
return ys.window.FS.readdir(dirname);
}
ys.remove_file = function(filename) {
try {
ys.window.FS.unlink(filename);
} catch (e) { }
}
doc.open()
doc.write('<script type="text/javascript" src="' + this.url_prefix + 'yosys.js"></' + 'script>');
doc.close()