How to allocate a dynamic array in nasm assembly?

Asked Sep 22 '13 at 14:44

Active Sep 22 '13 at 15:14

Viewed 1,249 times

I've looked through tons of examples, but all the code I found was for defining an array of a set size such as

array1  resd 10

I want to write code that prompts user to enter numbers, into an array, until he wants to stop. Is there someway to allocate a dynamic array?

I also thought of storing the input somewhere and incrementing a counter. Then create an array once the user finishes inputs. But then, where would I store the inputs?

Edit: for 64-bit linux

edited Sep 22 '13 at 15:14

asked Sep 22 '13 at 14:44

Andrew Tsay

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Which operating system are you targeting? – Michael Sep 22 '13 at 15:02
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Either get memory with `sys_brk` or `sys_mmap` and manage it yourself, or "just call malloc()". The latter is probably preferred. – Frank Kotler Sep 22 '13 at 17:13
If you use the array only locally (the data may be lost when doing a "ret" instruction) you may also allocate the data on the stack. – Martin Rosenau Sep 26 '13 at 07:00

How to allocate a dynamic array in nasm assembly?

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