Chimaera OS - API

Chimaera OS uses the DOS API as a reference as it's well documented which makes it easy to implement and use.

• INT 21,0 Program terminate
• INT 21,1 Keyboard input with echo
• INT 21,2 Display output
• INT 21,7 Direct console input without echo
• INT 21,8 Console input without echo
• INT 21,9 Print string
• INT 21,A Buffered keyboard input
• INT 21,E Select disk
• INT 21,19 Get current default drive
• INT 21,1A Set disk transfer address (DTA)
• INT 21,25 Set interrupt vector
• INT 21,2A Get date
• INT 21,2C Get time
• INT 21,39 Create directory (mkdir)
• INT 21,3A Delete directory (rmdir)
• INT 21,3B Set current directory

• INT 21,3C Create file using handle
• INT 21,3D Open file using handle
• INT 21,3E Close file using handle
• INT 21,3F Read from file using handle
• INT 21,40 Write to file using handle
• INT 21,41 Delete file
• INT 21,42 Move file pointer using handle
• INT 21,47 Get current directory
• INT 21,48 Allocate memory blocks
• INT 21,49 Free memory blocks
• INT 21,4A Modify allocated memory blocks
• INT 21,4B Exec program
• INT 21,4C Terminate process with return code
• INT 21,4E Find first matching file
• INT 21,4F Find next matching file