[SOLVED] A random integer from 65 to 69 ('A' to 'E') and store it to AL register

A random integer from 65 to 69 ('A' to 'E') and store it to AL register

Hi I'm new at Assembly language, and I tried to make a random integer from 65 to 69 ('A' to 'E') and store it to AL register. This is my code.

;------------------------------------------------------------
GetChFromABCDE PROC USES eax
;
; Generates a char randomly from 'A','B','C','D','E'
; Receives: Nothing
; Returns: The char ASCII code in AL
;------------------------------------------------------------

mov eax, 5          ; get random 0 to 4
call RandomRange    ;
mov eax, 41h        ; make range 65 to 69
mov value1, eax
mov al, BYTE PTR value1

GetChFromABCDE ENDP

END main

Whenever I try to figure out what a problem is in this code, a debugger says 'Source not available' and 'Source information is missing from the debug information for this module'. I guess the problem part is this.

mov value1, eax
mov al, BYTE PTR value1

My professor says try to use registers instead of memories as possible as I can, but this time I have no idea to fix this problem..

Solution

I realized I forgot to put ret in the GetChFromABCDE PROC! Here is the final answer.

GetChFromABCDE PROC 

    mov eax, 5        ; get random 0 to 4 
    call RandomRange  ; 
    add eax, 41h      ; make range 65 to 69
    ret

GetChFromABCDE ENDP