# PS/2 analyzer: missing modifier-dependent Set 2 codes: Alt+PrintScreen (0x84), Ctrl+Pause (0xE0 0x7E)

**URL:** https://discuss.saleae.com/t/ps-2-analyzer-missing-modifier-dependent-set-2-codes-alt-printscreen-0x84-ctrl-pause-0xe0-0x7e/3750
**Category:** Logic 2 Software
**Created:** [June 15, 2026, 12:04am UTC](https://discuss.saleae.com/t/ps-2-analyzer-missing-modifier-dependent-set-2-codes-alt-printscreen-0x84-ctrl-pause-0xe0-0x7e/3750 "2026-06-15T00:04:57Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![BitBob](https://avatars.discourse-cdn.com/v4/letter/b/ecb155/32.png) [@BitBob](https://discuss.saleae.com/u/BitBob)
#### Post date: [June 15, 2026, 11:14am UTC](https://discuss.saleae.com/t/ps-2-analyzer-missing-modifier-dependent-set-2-codes-alt-printscreen-0x84-ctrl-pause-0xe0-0x7e/3750/2 "2026-06-15T11:14:42Z")

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Relating to your other post:

> [@Why isn't stacking of HLAs supported?](https://discuss.saleae.com/t/why-isnt-stacking-of-hlas-supported/3736/4):
>
> why not open source all of Logic2 and let the community support you?

See:

> **[GitHub - saleae/ps2-keyboard-analyzer: Saleae PS/2 Keyboard Analyzer](https://github.com/saleae/ps2-keyboard-analyzer)**
>
> Saleae PS/2 Keyboard Analyzer

… you can submit a PR to add the missing features, and they can (eventually) be merged for everyone; Meanwhile, you can build and use the fix locally immediately:

> **[Import Custom Low Level Analyzer](https://www.saleae.com/support/extensions-api/protocol-analyzer-sdk/setting-up-developer-directory)**
>
> First, click the Settings button to open the Settings window.

PS: I think Saleae has balanced open source extensions with guarding proprietary core capabilities pretty well. I think they could enhance the APIs even more, to allow more open extensions & community enhancements.

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_[View the full topic](https://discuss.saleae.com/t/ps-2-analyzer-missing-modifier-dependent-set-2-codes-alt-printscreen-0x84-ctrl-pause-0xe0-0x7e/3750)._