en:docs:dos:api:int21:37:01
no way to compare when less than two revisions

Differences

This shows you the differences between two versions of the page.


—en:docs:dos:api:int21:37:01 [2020/12/14 09:59] (current) – created prokushev
Line 1: Line 1:
 +{{page>en:templates:dosint}}
 +
 +====== Int 21H, AH=37H, AL=01H ======
 +
 +===== Version =====
 +
 +2 and higher
 +
 +===== Brief =====
 +
 +SET SWITCH CHARACTER
 +
 +===== Family API =====
 +
 +
 +
 +===== Input =====
 +
 +        AX = 3701h
 +        DL = new switch character
 +
 +===== Return =====
 +
 + AL = status
 +            00h successful
 +            FFh unsupported subfunction
 +===== Macro =====
 +
 +
 +===== Notes =====
 +
 + documented in some OEM versions of some releases of DOS; DOS 2.x had
 +          a SWITCHAR=c setting in CONFIG.SYS
 +        supported by OS/2 compatibility box and Novell DOS 7
 +        ignored by MS-DOS 5+ and DR DOS 3.41-6.0; DR DOS 6.0 and Novell DOS 7
 +          leave AX unchanged
 +
 +===== See also =====
 +
 + AX=3700h
 +
 +===== Note =====
 +
 +Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]
 +
 +{{page>en:templates:int}}
 +
 +{{page>en:templates:fapi}}
 +