INT 21 - Phar Lap 386/DOS-Extender v2.1c+ - GET INFO ON DOS DATA BUFFER AX = 2517h Return: CF clear ES:EBX -> data buffer (protected mode address) ECX -> data buffer (real mode address) EDX = size of data buffer in bytes Note: the data buffer's address changes after calls to AX=2512h and AX=252Ah SeeAlso: AX=2512h,AX=252Ah,AX=2530h