Int 21/AH=4Ah

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DOS 2+ - RESIZE MEMORY BLOCK

AH = 4Ah
BX = new size in paragraphs
ES = segment of block to resize

Return:
CF clear if successful CF set on error AX = error code (07h,08h,09h) (see #01680 at AH=59h/BX=0000h) BX = maximum paragraphs available for specified memory block

Notes: Under DOS 2.1-6.0, if there is insufficient memory to expand the block as much as requested, the block will be made as large as possible. DOS 2.1-6.0 coalesces any free blocks immediately following the block to be resized

See Also: AH=48h - AH=49h - AH=83h

Category: DOS Kernel - Int 21h - D

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