From 8ee344699fc82769028134dd898a67dcbd4586d9 Mon Sep 17 00:00:00 2001
From: itsme <itsme@xs4all.nl>
Date: Fri, 9 Jul 2021 02:08:22 +0200
Subject: note about compressed records

---
 docs/cronos-research.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/cronos-research.md b/docs/cronos-research.md
index ec074d7..4cc4da0 100644
--- a/docs/cronos-research.md
+++ b/docs/cronos-research.md
@@ -169,4 +169,13 @@ the `Base000` entry contains the record number for the table definition of the f
     ...
 
 
+## compressed records
+
+some records are compressed, the format is like this:
+
+    word16 size
+    byte   head[2] = { 8, 0 }
+    word32 crc32
+    byte   compdata[size-4]
+    byte   tail[3] = { 0, 0, 2 }
 
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