Intel x8086 (NASM) DosBox Clock Reader

The program held in program.asm displays the time of the DosBox's clock with the following format : HH:MM:SS.

Usage

Install DOSBox emulator

Go to this website : https://www.dosbox.com and grab the DOSBox' version which fits your requirements.

Compile the program

Install the https://www.nasm.us/ assembler and compile the program.asm file via the command : nasm -fbin program.asm -o program.com

DOSBox syscall documentation

Run DOSBox

• Run the DOSBox emulator
• Mount the folder which contains the program.com that you compiled earlier : Z:> mount C: C:\Users\user\Desktop\intel_x8086_clock
• Go to the mounter folder : Z:> C:
• Run the program.com program : C:\> PROGRAM.COM

And then, you can run your DosBox to execute the program as following :