Questions tagged [dos]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
25
votes
1answer
2k views

Did DOS zero out the BSS area when it loaded a program?

As an example, say we have a DOS MZ EXE file that's around 20 KiB in size. The EXE header contains the value 0x1400 at offset 0x0A indicating that the program is requesting 5,120 paragraphs (or 80 KiB)...