1 files changed, 27 insertions, 0 deletions

diff --git a/v4.0/src/DOS/MSSW.ASM b/v4.0/src/DOS/MSSW.ASM
new file mode 100644
index 0000000..db8eb11
--- /dev/null
+++ b/v4.0/src/DOS/MSSW.ASM
@@ -0,0 +1,27 @@
+;       SCCSID = @(#)ibmsw.asm  1.1 85/04/10
+
+include version.inc
+
+IBM             EQU     ibmver
+WANG            EQU     FALSE
+
+; Set this switch to cause DOS to move itself to the end of memory
+HIGHMEM EQU     FALSE
+
+; Turn on switch below to allow testing disk code with DEBUG. It sets
+; up a different stack for disk I/O (functions > 11) than that used for
+; character I/O which effectively makes the DOS re-entrant.
+
+        IF      IBM
+ESCCH   EQU     0                       ; character to begin escape seq.
+CANCEL  EQU     27                      ;Cancel with escape
+TOGLPRN EQU     TRUE                    ;One key toggles printer echo
+ZEROEXT EQU     TRUE
+        ELSE
+ESCCH   EQU     1BH
+CANCEL  EQU     "X"-"@"                 ;Cancel with Ctrl-X
+TOGLPRN EQU     FALSE                   ;Separate keys for printer echo on
+                                        ;and off
+ZEROEXT EQU     TRUE
+        ENDIF
+
\ No newline at end of file