61 lines
2.6 KiB
HTML
61 lines
2.6 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml"><head>
|
|
<title>.</title>
|
|
<style type="text/css">
|
|
|
|
* { color: #000; background: #fff; max-width: 700px; }
|
|
tt, pre { background: #dedede; color: #111; font-family: monospace;
|
|
white-space: pre; display: block; width: 100%; }
|
|
.indentedcode { margin-left: 2em; margin-right: 2em; }
|
|
.codeblock {
|
|
background: #dedede; color: #111; font-family: monospace;
|
|
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
|
|
padding: 7px;
|
|
display: block;
|
|
}
|
|
|
|
.indentedlist { margin-left: 2em; color: #000; }
|
|
|
|
span { white-space: pre; }
|
|
.text { color: #000; white-space: pre; background: #dedede; }
|
|
.colon { color: #000; background: #dedede; }
|
|
.note { color: #000; background: #dedede; }
|
|
.str { color: #000; text-decoration: underline; background: #dedede; }
|
|
.num { color: #000; background: #dedede; font-weight: bold; font-style: italic; }
|
|
.fnum { color: #000; font-weight: bold; background: #dedede; }
|
|
.ptr { color: #000; font-weight: bold; background: #dedede; }
|
|
.fetch { color: #000; font-style: italic; background: #dedede; }
|
|
.store { color: #000; font-style: italic; background: #dedede; }
|
|
.char { color: #000; background: #dedede; }
|
|
.inst { color: #000; background: #dedede; }
|
|
.defer { color: #000; background: #dedede; }
|
|
.imm { color: #000; font-weight: bold; background: #dedede; }
|
|
.prim { color: #000; font-weight: bolder; background: #dedede; }
|
|
|
|
.tt { white-space: pre; font-family: monospace; background: #dedede; }
|
|
|
|
.h1, .h2, .h3, .h4 { white-space: normal; }
|
|
.h1 { font-size: 125%; }
|
|
.h2 { font-size: 120%; }
|
|
.h3 { font-size: 115%; }
|
|
.h4 { font-size: 110%; }
|
|
.hr { display: block; height: 2px; background: #000000; }
|
|
</style>
|
|
</head><body>
|
|
<p><br/><br/>
|
|
Nga provides a virtual processor and an extensible way of adding
|
|
I/O devices, but does not provide any I/O itself. Adding I/O is
|
|
the responsability of the <strong>interface layer</strong>.
|
|
<br/><br/>
|
|
An interface layer will wrap Nga, providing at least one I/O
|
|
device (a generic output target), and a means of interacting
|
|
with the <strong>retro image</strong>.
|
|
<br/><br/>
|
|
It's expected that this layer will be host specific, adding any
|
|
system interactions that are needed via the I/O instructions.
|
|
The image will typically be extended with words to use these.
|
|
<br/><br/>
|
|
<br/><br/>
|
|
</p>
|
|
</body></html>
|