Int 12 Fn Sect  - Bios - Get Memory Size                                   [!]


Return: AX = kilobytes of contiguous memory starting at absolute address 00000h

Note:  this call returns the contents of the word at 0040h:0013h; in PC and
     XT, this value is set from the switches on the motherboard

See Also: INT 11"BIOS",INT 2F/AX=4A06h,INT 4C"Tandy 2000",MEM 0040h:0013h