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Copyright 1991 David Jurgens |
INT 21,48 - Allocate Memory
AH = 48h
BX = number of memory paragraphs requested
on return:
AX = segment address of allocated memory block (MCB + 1para)
= error code if CF set (see DOS ERROR CODES)
BX = size in paras of the largest block of memory available
if CF set, and AX = 08 (Not Enough Mem)
CF = 0 if successful
= 1 if error
- returns segment address of allocated memory block AX:0000
- each allocation requires a 16 byte overhead for the MCB
- returns maximum block size available if error
- see INT 21,49, INT 21,4A
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int 21,48 |
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