# datagirl.xyz

Personal blog by Snow ([git.2ki.xyz/snow](https://git.2ki.xyz/snow)) at [datagirl.xyz](http://datagirl.xyz). Posts focus on retro x86 / DOS systems, emulator internals (DOSBox, 86Box, PCem, DOSEMU), and the kind of low-level detective work that involves disassembling COM files and writing INT 06h exception handlers in NASM.

Code samples for posts live on a self-hosted Gitea-style forge at git.2ki.xyz.

## Ingested articles

- [[dosbox-detection-callback-opcode]] — Detecting DOSBox by triggering its custom callback opcode `FE 38 00 00` and watching for `#UD`