From f3612b9081727142d89e37d096769848cc4a28fd Mon Sep 17 00:00:00 2001
From: Broken Pipe <85091235+TheBrokenPipe@users.noreply.github.com>
Date: Fri, 3 Oct 2025 13:58:15 +1000
Subject: [PATCH] Renamed .ASM files to .A86

Original source code used .A86 but I named them .ASM for GitHub to provide syntax highlighting. Now I've decided that it's better to keep the names original.
---
 86DOS.ASM => 86DOS.A86     | 0
 ASM.ASM => ASM.A86         | 0
 BOOT.ASM => BOOT.A86       | 0
 CHESS.ASM => CHESS.A86     | 0
 COMMAND.ASM => COMMAND.A86 | 0
 DOSIO.ASM => DOSIO.A86     | 0
 EDLIN.ASM => EDLIN.A86     | 0
 HEX2BIN.ASM => HEX2BIN.A86 | 0
 RDCPM.ASM => RDCPM.A86     | 0
 README.md                  | 2 +-
 SYS.ASM => SYS.A86         | 0
 TRANS.ASM => TRANS.A86     | 0
 12 files changed, 1 insertion(+), 1 deletion(-)
 rename 86DOS.ASM => 86DOS.A86 (100%)
 rename ASM.ASM => ASM.A86 (100%)
 rename BOOT.ASM => BOOT.A86 (100%)
 rename CHESS.ASM => CHESS.A86 (100%)
 rename COMMAND.ASM => COMMAND.A86 (100%)
 rename DOSIO.ASM => DOSIO.A86 (100%)
 rename EDLIN.ASM => EDLIN.A86 (100%)
 rename HEX2BIN.ASM => HEX2BIN.A86 (100%)
 rename RDCPM.ASM => RDCPM.A86 (100%)
 rename SYS.ASM => SYS.A86 (100%)
 rename TRANS.ASM => TRANS.A86 (100%)

diff --git a/86DOS.ASM b/86DOS.A86
similarity index 100%
rename from 86DOS.ASM
rename to 86DOS.A86
diff --git a/ASM.ASM b/ASM.A86
similarity index 100%
rename from ASM.ASM
rename to ASM.A86
diff --git a/BOOT.ASM b/BOOT.A86
similarity index 100%
rename from BOOT.ASM
rename to BOOT.A86
diff --git a/CHESS.ASM b/CHESS.A86
similarity index 100%
rename from CHESS.ASM
rename to CHESS.A86
diff --git a/COMMAND.ASM b/COMMAND.A86
similarity index 100%
rename from COMMAND.ASM
rename to COMMAND.A86
diff --git a/DOSIO.ASM b/DOSIO.A86
similarity index 100%
rename from DOSIO.ASM
rename to DOSIO.A86
diff --git a/EDLIN.ASM b/EDLIN.A86
similarity index 100%
rename from EDLIN.ASM
rename to EDLIN.A86
diff --git a/HEX2BIN.ASM b/HEX2BIN.A86
similarity index 100%
rename from HEX2BIN.ASM
rename to HEX2BIN.A86
diff --git a/RDCPM.ASM b/RDCPM.A86
similarity index 100%
rename from RDCPM.ASM
rename to RDCPM.A86
diff --git a/README.md b/README.md
index 0b086cb..d69d455 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 Full source code reconstruction of 86-DOS 0.11 - the earliest released version of the earliest operating system for the Intel x86 architecture.
 
 > [!IMPORTANT]
-> All 8086 assembly language source files in this repository should use the extension .A86; however, I have chosen to use the extension .ASM instead because GitHub does not detect .A86 files as assembly. To build the source code under CP/M or Cromemco CDOS, you must rename all .ASM files to .A86.
+> All 8086 assembly language source files in this repository use the extension `.A86`, because 86-DOS was originally assembled using the SCP Z80/8086 Cross Assembler running under Cromemco CDOS. To build 86-DOS under 86-DOS itself or MS-DOS, you would have to rename all `.A86` files to `.ASM`.
 
 ## Progress
 <img src="./.progress/boot.svg"> <img src="./.progress/bios.svg"> <img src="./.progress/kernel.svg"> <img src="./.progress/asm.svg"> <img src="./.progress/chess.svg"> <img src="./.progress/command.svg"> <img src="./.progress/edlin.svg"> <img src="./.progress/hex2bin.svg"> <img src="./.progress/rdcpm.svg"> <img src="./.progress/sys.svg"> <img src="./.progress/trans.svg">
diff --git a/SYS.ASM b/SYS.A86
similarity index 100%
rename from SYS.ASM
rename to SYS.A86
diff --git a/TRANS.ASM b/TRANS.A86
similarity index 100%
rename from TRANS.ASM
rename to TRANS.A86