48sx, a vintage RPN calculator Mod Apk v2.42  

48sx : The HP48 sx emulator !



HP48sx is a vintage RPN calculator. I used this calc 25 years ago ;-) I love this calc....and now I can have it in my pocket every day !



HP48sx emulator for Android, released on the Play Store. The bundled ROM is free for non

commercial use. No nag, no Ad, completely FREE!



- Play Store: https://play.google.com/store/apps/details?id=org.czo.droid48sx

- Old releases apk: https://github.com/czodroid/droid48sx/releases

- Sources code: https://github.com/czodroid/droid48sx



48sx is a modified version of droid48 but for the HP48 SX, the credit goes to Arnaud Brochard (author of droid48 for Android), and of course Eddie C. Dost (author of x48 for UNIX) who created an emulator of the Saturn processor in 1990.



48sx CHANGELOG

===============



* 10 Jul 2022 (Version 2.42.27624074)

- Fixed the "Large LCD" option in the settings, and replaced it with "HP48 LCD" to get full pixels

- The HP48's LCD screen has now a maximum width on your device, but you can set "HP48 LCD" in the settings get full pixels



* 4 June 2022 (Version 2.42.27573940)

- Bug fixes and performance improvements

- Intended to work from Android 4.4 to 12 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures

- Haptic feedback enabled by default, but can be disabled on settings

- New menu: 'Save checkpoint ZIP As...' : save the current checkpoint in a zipped file (in Download/checkpoint_$DATE.zip).

This zip file must contain the files 'hp48', 'rom', 'ram' and maybe 'port1' or 'port2')

- New menu: 'Restore checkpoint ZIP' : restore from a zipped checkpoint.zip (that you choose)

- Permissions on "Choose File" works on some Android 11 and 12, depending on the brand. This will be my next update...

- When the action bar is enabled, pressing an hp48 button disables it again

- Checkpoint is saved at the first startup and new functions to load a stuck HP48

- New shortcuts, one for full reset, and another to restore from a checkpoint when the emulator is stuck



* 18 Oct 2019 (Version 1.42)

- Bug fixes and performance improvements

- Intended to work from Android 2.2 to 10 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures

- New skin, A..F are the same size of others key

- Portrait mode only

- New round icon

- New name : 48sx



* 30 Jan 2016 (Version 1.39)

- Intended to work from android 2.2 to 6.x on armeabi, armeabi-v7a, arm64-v8a, mips, mips64, x86 and x86_64 architectures

- New amazing skin, should be more readable on big screens

- New action bar with icons and menu when touching HP48sx screen

- New icon

- Complete fullscreen for android 4.4, 5.x and 6.x

- Corrected port2 settings

- Haptic feedback disabled by default, but can be re-enabled



* 26 Jan 2014 (Version 1.38)

- Corrected "put program on stack" bug

- Corrected FC bug on android 4.3

- Corrected random freeze on android 4.4

- Data files are now stored on /sdcard/Android/data/org.czo.droid48sx/files

- Menu is displayed when touching HP screen

- New menu: Save checkpoint (saves a backup copy of hp48/ram/rom/port1/port2)

- New menu: Restore checkpoint (restores the backup copy of hp48/ram/rom/port1/port2)

- New menu: Full reset (deletes firmware/ram and deactivate ports, if calc is still hung, please uninstall/reinstall)



* 7 Nov 2012 (Version 1.36)

- first release

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