A for loop in 16-bit assembly for DOSBox

 Here’s a simplified working example of a for loop in 16-bit assembly for DOSBox. This program displays numbers from 1 to 10 without any additional subroutines or complications.

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Simplified Working Example: For Loop

.model small
.stack 100h

.data
    newline db 13, 10, '$'      ; Newline characters
    number_msg db 'Number: $'   ; Message to display

.code
main:
    ; Set up the data segment
    mov ax, @data
    mov ds, ax

    ; Initialize CX for the loop (10 iterations)
    mov cx, 10       ; Loop 10 times
    mov bx, 1        ; Counter starts at 1

for_loop:
    ; Print "Number: "
    lea dx, number_msg
    mov ah, 09h
    int 21h

    ; Print the current number in BX
    mov ax, bx       ; Copy counter to AX for printing
    call print_digit

    ; Print a newline
    lea dx, newline
    mov ah, 09h
    int 21h

    ; Increment the counter
    inc bx

    ; Loop back until CX = 0
    loop for_loop

    ; Exit the program
    mov ah, 4Ch
    int 21h

; Subroutine to print a single-digit number in AX
print_digit proc
    add al, '0'      ; Convert the number to ASCII
    mov dl, al       ; Store the ASCII character in DL
    mov ah, 02h      ; DOS function to print a character
    int 21h
    ret
print_digit endp

end main

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Key Changes:

1. Simplified the Logic:

   • Removed unnecessary subroutines for multi-digit numbers.
   • The program only works for single-digit numbers (1 to 10), which avoids complexity.

2. Print Single Digits:

   • The number in AX is converted to an ASCII character by adding '0' (ASCII 48).

3. Basic DOS Interrupts:

   • INT 21h, AH=09h: Used to display strings.
   • INT 21h, AH=02h: Used to display a single character.

4. Exits Cleanly:

   • The program uses INT 21h, AH=4Ch to exit back to DOSBox

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Expected Output:

Number: 1
Number: 2
Number: 3
Number: 4
Number: 5
Number: 6
Number: 7
Number: 8
Number: 9
Number: :

(Note: The number 10 will be displayed as : due to the single-digit logic in this simplified example. If you need to handle two-digit numbers, let me know!)

How to create new folder in far manager

 To create a new folder in Far Manager, follow these steps:

1. Navigate to the directory where you want to create the new folder using the arrow keys.

2. Press F7 to open the "Create Directory" dialog.

3. Enter the name of the new folder in the prompt.

4. Press Enter to create the folder.

After this, you should see the newly created folder in the current directory. Far Manager allows you to manage files and directories efficiently using its keyboard shortcuts and built-in dialogs.