Viewing profile — bignerd_95
bignerd_95
HN member- Joined
- Mon, Oct 13, 2025, 2:37 AM UTC
- HN karma
- 18
- Public activity
- 9 items
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About bignerd_95
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Recent public activity
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Comment #46483069
Extraordinary! Congratulations. I’ve always been fascinated by the world of telephony. How did you manage to get numbers for every country? Do you have direct access to SS7, are yo…
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Comment #45712037
So you use debuggers. Good. Then you can confirm that the program counter is incremented after each instruction, and that you read assembly from top to bottom. That means smaller a…
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Comment #45710444
Please try to draw, step by step, a process where lower addresses are at the top and higher addresses are at the bottom. You’ll see that this makes everything much easier to unders…
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Comment #45708448
If you're referring to little-endianness, it means the CPU stores multi-byte values in memory with the least significant byte first (at the lowest address). This convention started…
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Comment #45708239
Yes, I reached the same conclusions the hard way while exploiting memory corruption bugs. Once I understood how misleading these representations can be, everything finally became c…
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Comment #45708161
Yes, I draw the heap starting at the top of the board and the stack starting at the bottom of the board and grow them toward each other. That works fine in a one-off explanation. T…
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Comment #45707922
Thanks! I tried to rewrite the final sentence
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Comment #45707776
As someone who teaches this stuff at university, I see students getting confused every single year by how textbooks draw memory. The problem is mostly visual, not conceptual. Most …
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Comment #45564178
Nice project! Another route you might consider is flashing a small custom firmware on the Grandstream HT80x so the logic runs directly on the ATA instead of on the Pi/Asterisk side…