MEMORY SIZE CHECK INT 12H
NAME
Report Memory Size
SYNOPSIS
- int 12h
FUNCTION
- Reports the number of contiguous 1K memory blocks in the system (up to 640K).
| Inputs | Result |
|---|---|
| NONE | AX = Total Memory size in Kilobytes (up to 640K) |
NOTES
- The value returned in AX is the same as that stored at memory location 0:0413h, which is initialized during the power-up tests
- This is the amount of memory available to the entire system. This is not the amount of memory available to the user's program.
- If the CMOS battery memory value is greater than the actual amount of memory, then the actual amount of memory is returned by this interrupt.
Last Update: 06.03.2024