Subj : Re: Welp
To   : Tiny
From : neo67
Date : Fri Sep 19 2025 22:42:48

Hi Tiny,

Abstract: It is very likely that the 228 CD limit is a Turbo Pascal/real
mode memory limit. EZ-ROM is (according to findings) a DOS door written
in Turbo Pascal; Turbo Pascal in 16-bit real mode has a maximum of 64 KB
per data segment for global/static data. If the developer created a static
array table of records for the CD catalog entries, the record size
determines how many entries fit into the 64 KB. With a record size of roughly
~280 bytes, you end up with about ~228 entries (64 KB / ~280 B ≈ 228). This
explains why 256 were not used: the 64 KB segment limit was there before.
A round number like 256 does not help if the sum of the record bytes exceeds
the 64 KB mark beforehand.

Greetz
neo67

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