dbrant

0800:0000 1E                              PUSH DS       // save ds, since we'll be setting it to 0
0800:0001 33C9                            XOR CX,CX     // cx = 0
0800:0003 8ED9                            MOV DS,ECX    // ds = 0

// Detect parallel port address (from bios data area)
0800:0005 BB0804                          MOV BX,0408
0800:0008 B104                            MOV CL,04             // try up to 4 addresses
0800:000A 8B17                            MOV DX,WORD PTR [BX]
0800:000C 0BD2                              OR DX,DX
0800:000E 7506                              JNE 0016  // if (DX != 0) break;

dbrant

(Dmitry Brant, Apr 2022)

Recently I came across a backup tape (an AIT-3 100GB tape) that was written with a format
I didn't recognize. The only thing I knew is that it came from a Mac workstation, which means
it was likely written using Retrospect, which was a popular backup tool at the time.
This is the result of my reverse-engineering effort to get the contents out of this archive.
------------------

This backup format is composed of a sequence of blocks which use FourCC-style formatting.
(All data is big-endian. Dates are formatted as seconds since Jan 1 1904.)

dbrant

import os
import sys
import pickle
from googleapiclient.discovery import build
from googleapiclient.http import MediaFileUpload
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

directoryIndexMap = {}

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import smtplib

server = smtplib.SMTP("smtp.gmail.com", 587)
server.ehlo()
server.starttls()
server.ehlo()
server.login("account@example.com", password)
msg = "To: destination@example.com\n"
msg += "From: source@example.com\n"
msg += "Subject: "

dbrant

ligature: ff fi fl ffi ffl

hyphen: ‐
non-breaking hyphen: ‑
minus sign: −
figure dash: ‒
en dash: –
em dash: —
horizontal bar: ―