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2e13aedbb6801d65e0112c88629ca9848ee8e8b0
pkimpel.retro-b5500/tools/B5500DiskDirList.html
paul.kimpel@digm.com 2260803c51 Release emulator version 0.15: 
1. Initial implementation of a datacom terminal.
2. Initial implementation (read-only) of magnetic tape drives.
3. Further work towards getting P2 to function (but not working yet).
4. Allow device driver classes to be optionally included in the global UI script.
5. Fix callback arguments handling in SetCallback.
6. Decrease width of SPO window slightly.
7. Improve trapping and printing of SPO keystrokes, based on datacom implementation.
8. Minor performance tuning improvements.
9. Dump raw header words in octal in tools/B5500DiskDirList.html script.
10. New wiki pages and several updates to existing ones.
2013-11-15 05:33:58 +00:00

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<!DOCTYPE html>
<head>
<title>B5500 Disk Directory List Utility</title>
<meta name="Author" content="Paul Kimpel">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Content-Style-Type" content="text/css">
<script>
/***********************************************************************
* retro-b5500/tools B5500DiskDirList.html
************************************************************************
* Copyright (c) 2013, Paul Kimpel.
* Licensed under the MIT License,
* see http://www.opensource.org/licenses/mit-license.php
************************************************************************
* B5500 Disk Directory List Utility.
*
* This script opens an IndexedDB database in the browser and attempts to
* treat it as a B5500 disk image, listing all of the files and their attributes
* in the disk directory.
************************************************************************
* 2013-04-16 P.Kimpel
* Original version, from B5500ColdLoader.html.
***********************************************************************/
"use strict";
if (!window.indexedDB) { // for Safari, mostly
window.indexedDB = window.webkitIndexedDB || window.mozIndexedDB;
}
window.addEventListener("load", function() {
var configName = "CONFIG"; // database configuration store name
var dbName = "B5500DiskUnit"; // IDB database name
var dbVersion = 1; // current IDB database version
var directoryTop; // start of directory area
var directoryEnd; // end of directory area
var euPrefix = "EU"; // prefix for EU object store names
var config = null; // copy of CONFIG store contents
var disk = null; // the IDB database object
var panel = $$("TextPanel");
var BICtoANSI = [ // Index by 6-bit BIC to get 8-bit ANSI code
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37, // 00-07, @00-07
0x38,0x39,0x23,0x40,0x3F,0x3A,0x3E,0x7D, // 08-1F, @10-17
0x2B,0x41,0x42,0x43,0x44,0x45,0x46,0x47, // 10-17, @20-27
0x48,0x49,0x2E,0x5B,0x26,0x28,0x3C,0x7E, // 18-1F, @30-37
0x7C,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50, // 20-27, @40-47
0x51,0x52,0x24,0x2A,0x2D,0x29,0x3B,0x7B, // 28-2F, @50-57
0x20,0x2F,0x53,0x54,0x55,0x56,0x57,0x58, // 30-37, @60-67
0x59,0x5A,0x2C,0x25,0x21,0x3D,0x5D,0x22]; // 38-3F, @70-77
var BICtoBCLANSI = [ // Index by 6-bit BIC to get 8-bit BCL-as-ANSI code
0x23,0x31,0x32,0x33,0x34,0x35,0x36,0x37, // 00-07, @00-07
0x38,0x39,0x40,0x3F,0x30,0x3A,0x3E,0x7D, // 08-1F, @10-17
0x2C,0x2F,0x53,0x54,0x55,0x56,0x57,0x58, // 10-17, @20-27
0x59,0x5A,0x25,0x21,0x20,0x3D,0x5D,0x22, // 18-1F, @30-37
0x24,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50, // 20-27, @40-47
0x51,0x52,0x2A,0x2D,0x7C,0x29,0x3B,0x7B, // 28-2F, @50-57
0x2B,0x41,0x42,0x43,0x44,0x45,0x46,0x47, // 30-37, @60-67
0x48,0x49,0x5B,0x26,0x2E,0x28,0x3C,0x7E]; // 38-3F, @70-77
var ANSItoBIC = [ // Index by 8-bit ANSI to get 6-bit BIC (upcased, invalid=>"?")
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 00-0F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 10-1F
0x30,0x3C,0x3F,0x0A,0x2A,0x3B,0x1C,0x0C,0x1D,0x2D,0x2B,0x10,0x3A,0x2C,0x1A,0x31, // 20-2F
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0D,0x2E,0x1E,0x3D,0x0E,0x0C, // 30-3F
0x0B,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x21,0x22,0x23,0x24,0x25,0x26, // 40-4F
0x27,0x28,0x29,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x1B,0x0C,0x3E,0x0C,0x0C, // 50-5F
0x0C,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x21,0x22,0x23,0x24,0x25,0x26, // 60-6F
0x27,0x28,0x29,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x2F,0x20,0x0F,0x1F,0x0C, // 70-7F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 80-8F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 90-9F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // A0-AF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // B0-BF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // C0-CF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // D0-DF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // E0-EF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C]; // F0-FF
var BCLANSItoBIC = [ // Index by 8-bit BCL-as-ANSI to get 6-bit BIC (upcased, invalid=>"?")
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 00-0F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 10-1F
0x1C,0x1B,0x1F,0x00,0x20,0x1A,0x3B,0x0C,0x3D,0x2D,0x2A,0x30,0x10,0x2B,0x3C,0x11, // 20-2F
0x0C,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0D,0x2E,0x3E,0x1D,0x0E,0x0B, // 30-3F
0x0A,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x21,0x22,0x23,0x24,0x25,0x26, // 40-4F
0x27,0x28,0x29,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x3A,0x0C,0x1E,0x0C,0x0C, // 50-5F
0x0C,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x21,0x22,0x23,0x24,0x25,0x26, // 60-6F
0x27,0x28,0x29,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x2F,0x2C,0x0F,0x3F,0x0C, // 70-7F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 80-8F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // 90-9F
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // A0-AF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // B0-BF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // C0-CF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // D0-DF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C, // E0-EF
0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C]; // F0-FF
var pow2 = [ // powers of 2 from 0 to 52
0x1, 0x2, 0x4, 0x8,
0x10, 0x20, 0x40, 0x80,
0x100, 0x200, 0x400, 0x800,
0x1000, 0x2000, 0x4000, 0x8000,
0x10000, 0x20000, 0x40000, 0x80000,
0x100000, 0x200000, 0x400000, 0x800000,
0x1000000, 0x2000000, 0x4000000, 0x8000000,
0x10000000, 0x20000000, 0x40000000, 0x80000000,
0x100000000, 0x200000000, 0x400000000, 0x800000000,
0x1000000000, 0x2000000000, 0x4000000000, 0x8000000000,
0x10000000000, 0x20000000000, 0x40000000000, 0x80000000000,
0x100000000000, 0x200000000000, 0x400000000000, 0x800000000000,
0x1000000000000, 0x2000000000000, 0x4000000000000, 0x8000000000000,
0x10000000000000];
/**************************************/
function $$(id) {
return document.getElementById(id);
}
/**************************************/
function bitTest(word, bit) {
/* Extracts and returns the specified bit from the word */
var e = 47-bit; // word lower power exponent
var p; // bottom portion of word power of 2
if (e > 0) {
return ((word - word % (p = pow2[e]))/p) % 2;
} else {
return word % 2;
}
}
/**************************************/
function fieldIsolate(word, start, width) {
/* Extracts a bit field [start:width] from word and returns the field */
var le = 48-start-width; // lower power exponent
var p; // bottom portion of word power of 2
return (le == 0 ? word : (word - word % (p = pow2[le]))/p) % pow2[width];
}
/**************************************/
function spout(text) {
/* Appends "text"+NL as a new text node to the panel DOM element */
var e = document.createTextNode(text + "\n");
panel.appendChild(e);
$$("PageBottom").scrollIntoView();
}
/**************************************/
function clearPanel() {
/* Clears the text panel */
var kid;
while (kid = panel.firstChild) {
panel.removeChild(kid);
}
}
/**************************************/
function rtrim(s) {
/* Trims trailing spaces from "s" and returns the resulting string */
var m = s.match(/^(.*?) *$/);
return m[1];
}
/***************************************/
function padOctal(value, octades) {
/* Formats "value" as an octal number of "octades" length, left-padding with
zeroes as necessary */
var text = value.toString(8);
var len = text.length;
while (len++ < octades) {
text = "0" + text;
}
return text;
}
/**************************************/
function padToLength(text, len) {
/* Converts the input string "text" to exactly "len" characters,
truncating or padding on the right with spaces as necessary */
var x = text.length;
if (x > len) {
return text.substring(0, len);
} else {
x = len-x;
while (x-- > 0) {
text += " ";
}
return text;
}
}
/**************************************/
function stringToANSI(text, bytes, bx, asBinary) {
/* Translates the characters in a string to upper case, and then to ANSI
byte-array format. "text" is the input string, "bytes" is the Uint8Array
output buffer, and "bx" is the offset into that output buffer. If "asBinary" is
truthy, the translation is binary, otherwise it is done as BCLANSI */
var len = text.length;
var table1 = (asBinary ? BICtoANSI : BICtoBCLANSI);
var utxt = text.toUpperCase();
var x;
bx = bx || 0;
for (x=0; x<len; x++) {
bytes[bx++] = table1[ANSItoBIC[utxt.charCodeAt(x) & 0xFF]];
}
}
/**************************************/
function wordsToANSI(words, wx, wLength, bytes, bx, asBinary) {
/* Translates an array of B5500 words to ANSI byte-array format.
"words" = the array of words
"wx" = the starting index in "words"
"wLength" = the number of words to translate
"bytes" = a Uint8Array array
"bx" = the starting index in "bytes" to store the translated data
"asBinary" = if truthy, then binary translation is done; otherwise
B5500 BCLANSI translation is done */
var c;
var table = (asBinary ? BICtoANSI : BICtoBCLANSI);
var w;
var x;
var y;
var z;
bx = bx || 0;
if (wLength < 0) {
wLength = -wLength;
}
for (x=0; x<wLength; x++) {
w = words[wx+x] || 0;
for (y=0; y<8; y++) {
z = w % 0x40000000000;
c = (w-z)/0x40000000000;
bytes[bx++] = table[c];
w = z*64;
}
}
}
/**************************************/
function wordsToString(words, wx, wLength, asBinary) {
/* Translates an array of B5500 words to a string and returns the string.
"words" = the array of words
"wx" = the starting index in "words"
"wLength" = the number of words to translate
"asBinary" = if truthy, then binary translation is done; otherwise
B5500 BCLANSI translation is done */
var c;
var table = (asBinary ? BICtoANSI : BICtoBCLANSI);
var text = "";
var w;
var x;
var y;
var z;
if (wLength < 0) {
wLength = -wLength;
}
for (x=0; x<wLength; x++) {
w = words[wx+x] || 0;
for (y=0; y<8; y++) {
z = w % 0x40000000000;
c = (w-z)/0x40000000000;
text += String.fromCharCode(table[c]);
w = z*64;
}
}
return text;
}
/**************************************/
function ANSItoWords(bytes, bx, bLength, words, wx, asBinary) {
/* Translates a portion of an ANSI byte array to a sequence of B5500 words.
"bytes" = the Uint8Array byte array
"bx" = 0-relative offset into "bytes"
"bLength" = number of bytes to translate
"words" = the word array
"wx" = 0-relative offset into "words" to store the translated data
"asBinary" = if truthy, then binary translation is done; otherwise
B5500 BCLANSI translation is done */
var cx = 0;
var w = 0;
var table = (asBinary ? ANSItoBIC : BCLANSItoBIC);
var x;
wx = wx || 0;
if (bLength < 0) {
bLength = -bLength;
}
for (x=0; x<bLength; x++) {
if (cx >= 8) {
words[wx++] = w;
w = cx = 0;
}
w = w*64 + table[bytes[bx+x]];
cx++;
}
while (cx++ < 8) {
w *= 64;
}
words[wx++] = w;
}
/**************************************/
function readDiskBlock(addr, segs, block, callback) {
/* Reads a block from the disk "eu" at "addr" for "segs" segments, translates
it to words in the "block" array, then calls "callback" passing the address
and block */
var bx = 0;
var eu;
var euAddr = addr % 1000000;
var euNr = (addr % 10000000 - euAddr)/1000000;
var euName = euPrefix + euNr.toString();
var endAddr = euAddr + segs - 1;
var nextAddr = euAddr;
var range = IDBKeyRange.bound(euAddr, endAddr);
var req;
var txn;
var x;
txn = disk.transaction(euName);
eu = txn.objectStore(euName);
req = eu.openCursor(range);
req.onsuccess = function(ev) {
var cursor = ev.target.result;
if (cursor) {
while (cursor.key > nextAddr) {
for (x=0; x<30; x++) {
block[bx++] = 0;
}
nextAddr++;
}
ANSItoWords(cursor.value, 0, 240, block, bx);
bx += 30;
nextAddr++;
cursor.continue();
} else {
while (nextAddr <= endAddr) {
for (x=0; x<30; x++) {
block[bx++] = 0;
}
nextAddr++;
}
callback(addr, block);
}
};
}
/**************************************/
function readDiskHeader(block) {
/* Decodes "block" as a B5500 disk header, returning the header object */
var header = {
recordLength: 0,
blockLength: 0,
recordsPerBlock: 0,
segmentsPerBlock: 0,
logCreationDate: 0,
logCreationTime: 0,
lastAccessDate: 0,
creationDate: 0,
fileClass: 0,
fileType: 0,
recordCount: 0,
segmentsPerRow: 0,
maxRows: 0,
rowAddress: [],
words: []};
header.recordLength = fieldIsolate(block[0], 0, 15);
header.blockLength = fieldIsolate(block[0], 15, 15);
header.recordsPerBlock = fieldIsolate(block[0], 30, 12);
header.segmentsPerBlock = fieldIsolate(block[0], 42, 6);
header.logCreationDate = fieldIsolate(block[1], 6, 18);
header.logCreationTime = fieldIsolate(block[1], 25, 23);
header.lastAccessDate = fieldIsolate(block[3], 12, 18);
header.creationDate = fieldIsolate(block[3], 30, 18);
header.fileClass = fieldIsolate(block[4], 9, 2);
header.fileType = fieldIsolate(block[4], 36, 6);
header.recordCount = block[7];
header.segmentsPerRow = block[8];
header.maxRows = fieldIsolate(block[9], 43, 5);
header.rowAddress = block.slice(10);
header.words = block; // save the raw header words
return header;
}
/**************************************/
function formatDirectoryEntry(body, mfid, fid, headerBlock) {
/* Formats the disk header for a file */
var header = readDiskHeader(headerBlock);
var row = document.createElement("tr");
var rx;
var text = "";
function appendCell(row, v, className) {
var cell = document.createElement("td");
if (className && className.search(/\S/) >= 0) {
cell.className = className;
}
cell.appendChild(document.createTextNode(v.toString()));
row.appendChild(cell);
}
appendCell(row, mfid.substring(1));
appendCell(row, fid.substring(1));
appendCell(row, header.recordLength, "rj");
appendCell(row, header.blockLength, "rj");
appendCell(row, header.recordsPerBlock, "rj");
appendCell(row, header.segmentsPerBlock, "rj");
appendCell(row, header.logCreationDate);
appendCell(row, header.logCreationTime);
appendCell(row, header.lastAccessDate);
appendCell(row, header.creationDate);
appendCell(row, header.fileClass, "rj");
appendCell(row, header.fileType, "rj");
appendCell(row, header.recordCount, "rj");
appendCell(row, header.segmentsPerRow, "rj");
appendCell(row, header.maxRows, "rj");
for (rx=0; rx<header.maxRows; rx++) {
text += header.rowAddress[rx].toFixed(0) + " ";
}
appendCell(row, text);
body.appendChild(row);
text = "";
for (rx=0; rx<10; rx++) {
text += padOctal(headerBlock[rx], 16) + " ";
}
appendCell(row, text);
body.appendChild(row);
}
/**************************************/
function directoryList(successor) {
/* Reads the existing directory structure to generate a list of the files
in the directory. When finished, calls the "successor" function */
var block = new Array(480);
var body = $$("DirListBody");
function reportDirBlock(addr, block) {
/* Lists the entries in the resulting block; if not the last block,
advances to the next block */
var atEnd = false;
var bx;
var fid;
var headerBlock;
var mfid;
var namex;
// Step through the file name entries backwards
for (namex=14; namex>=0; namex--) {
bx = namex*2 + 450;
if (block[bx] == 0x4C) { // 0x4C=@114, end-of-directory marker
atEnd = true;
break;
} else if (block[bx] != 0x0C) { // 0x0C=@14, available directory slot
// Got a live one -- format its header
mfid = wordsToString(block, bx, 1, true);
fid = wordsToString(block, bx+1, 1, true);
bx = namex*30;
formatDirectoryEntry(body, mfid, fid, block.slice(bx, bx+30));
}
}
if (atEnd) {
successor();
} else {
readDiskBlock(addr+16, 16, block, reportDirBlock);
}
}
/***** outer block of directoryList *****/
while (body.firstChild) {
body.removeChild(body.firstChild);
}
if (!config.EU0) {
alert("No EU0 in disk configuration -- cannot load");
} else {
readDiskBlock(directoryTop+4, 16, block, reportDirBlock);
}
}
/**************************************/
function genericDBError(ev) {
/* Formats a generic alert when otherwise-unhandled database errors occur */
var disk = ev.currentTarget.result;
alert("Database \"" + disk.name + "\" error: " + ev.target.result.error);
}
/**************************************/
function openDatabase(name, version, successor) {
/* Attempts to open the disk subsystem database for the specified "name"
and "version". Stores the IDB database object in "disk" if successful, or
stores null if unsuccessful. Also gets directoryTop from seg 0 */
var block = new Array(30);
var db = null;
var req;
req = window.indexedDB.open(name, version);
req.onerror = function(ev) {
alert("Cannot open disk database: " + ev.target.error);
};
req.onblocked = function(ev) {
alert("Database.open is blocked -- cannot continue");
};
req.onsuccess = function(ev) {
disk = ev.target.result; // save the object reference globally for later use
disk.onerror = genericDBError;
// alert("Disk database opened: " + name + " #" + disk.version);
disk.transaction("CONFIG").objectStore("CONFIG").get(0).onsuccess = function(ev) {
config = ev.target.result;
readDiskBlock(0, 1, block, function(addr, block) {
directoryTop = block[1];
directoryEnd = block[4];
successor();
});
};
};
}
/**************************************/
function checkBrowser() {
/* Checks whether this browser can support the necessary stuff */
var missing = "";
if (!window.File) {missing += ", File"}
if (!window.FileReader) {missing += ", FileReader"}
if (!window.FileList) {missing += ", FileList"}
if (!window.Blob) {missing += ", Blob"}
if (!window.ArrayBuffer) {missing += ", ArrayBuffer"}
if (!window.DataView) {missing += ", DataView"}
if (!window.indexedDB) {missing += ", IndexedDB"}
if (missing.length == 0) {
return false;
} else {
alert("No can do... your browser does not support the following features:\n" +
missing.substring(2));
return true;
}
}
/********** Start of window.onload() **********/
if (!checkBrowser()) {
openDatabase(dbName, dbVersion, function() {
directoryList(function() {});
});
}
}, false);
</script>
<style>
BODY {
font-family: Arial, Helvetica, sans-serif;
font-size: small}
TABLE {
border-collapse: collapse}
TH {
vertical-align: bottom}
TD {
white-space: nowrap}
.center {
text-align: center}
.rj {
text-align: right}
.mono {
font-family: Courier New, Courier, monospace}
</style>
</head>
<body>
<div style="position:relative; width:100%; height:3em">
<div style="position:absolute; left:0; top:0; width:auto">
<img src="../webUI/retro-B5500-Logo.png" alt="retro-B5500 Logo" style="float:left">
&nbsp;Disk Directory List Utility
</div>
</div>
<table id=DirListTable border=1 cellspacing=0 cellpadding=1>
<thead>
<tr>
<th>MFID
<th>FID
<th>REC
<th>BLK
<th>RPB
<th>SPB
<th>LCD
<th>LCT
<th>LAD
<th>CRD
<th>FCL
<th>FTY
<th>CNT
<th>SPR
<th>MXR
<th>Row Addresses
<th>Raw Header Words 0-9
<tbody id=DirListBody>
</table>
<pre id=TextPanel>
</pre>
<div id=PageBottom>
</div>
</body>
</html>
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