Here is yet another CHOICE program for batch file menu selections.
 This one returns an errorlevel equal to the number pressed(0 -9)
 and errorlevel 27 for the Esc key.

 --[Cut here]----------------------------------------------------------
 n choice.com
 a
 mov     ah, 2
 xor     bh, bh          ; Logical Exclusive OR
 mov     dh, 17
 mov     dl, 3F
 int     10              ; - VIDEO - SET CURSOR POSITION
                         ; DH,DL = row, column (0,0 = upper left)
                         ; BH = page number
 xor     ah, ah          ; Logical Exclusive OR
 int     16              ; KEYBOARD - READ CHAR FROM BUFFER, WAIT IF EMPTY
                         ; Return: AH = scan code, AL = character
 cmp     al, 1B          ; Compare Two Operands
 jz      11C             ; Jump if Zero (ZF=1)
 cmp     al, 30          ; Compare Two Operands
 jb      10A             ; Jump if Below (CF=1)
 cmp     al, 39          ; Compare Two Operands
 ja      10A             ; Jump if Above (CF=0 & ZF=0)
 sub     al, 30          ; Integer Subtraction
 mov     ah, 4C
 int     21              ; DOS - 2+ - QUIT WITH EXIT CODE (EXIT)
                         ; AL = exit code
 db      13,10,'Returns errorlevel 0 - 9 for keys 0 - 9'
 db      13,10,'Returns errorlevel 27 for <Esc> key'

 r cx
 6E
 w
 q
 --[Cut here]----------------------------------------------------------
 Save the script between the hash marks to an ASCII file.
 At the DOS prompt enter,  "DEBUG < filename"
 where "filename" is the name of the saved ASCII file.

___ Blue Wave/QWK v2.12