3 Reusable Code Snippet Topics
Remove Filter  | |
| | For those interested in operating system development, this snippet tests status of A20. It is the line that allows memory beyond 1 meg to be addressed, otherwise it will just wrap around which some applications and versions of DOS depend on. My bootloader **MBR1_44** has switched system to protected (*32 … |
 | A simple way to find out a Python module's location on your drive.  |
 | **NOTE** This code won't work at the application level. It directly addresses memory at 0xB8000 which will result in a segfault at the application level. This code must be part of an OS or an application in a not-so-secure operating system like DOS, where applications can directly address any part … |
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