From a4d6d71612f38c8e164449971855fdde7976b3be Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Sun, 31 Oct 2021 11:21:49 +0000
Subject: SDCC versions and support for current snapshots

---
 README.md | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 86d7152..903184b 100644
--- a/README.md
+++ b/README.md
@@ -16,10 +16,19 @@ deep knowledge of the system.
 
 ## Requirements
 
- - SDCC (3.9.0 or later recommended)
  - GNU Make (others may work)
  - a POSIX compatible environment
 
+The [SDCC](http://sdcc.sourceforge.net/) compiler is also needed. Check the
+following table for some hints on compatibility.
+
+| Version             | Compatible | Comments                                                |
+| ---                 | ---        | ---                                                     |
+| 3.9.0               | yes        | -                                                       |
+| 4.0.0               | yes        | -                                                       |
+| 4.1.0               | no         | At least on Linux amd64 it generates broken Z80 code    |
+| sdcc-20211031-12748 | yes        | Needs option in `config.env`, edit the file for details |
+
 If you want to build the example you will also need:
 
  - python 3
-- 
cgit v1.2.3