Alexander Shendi
PS:
Changing "main()" to "int main()" will already cause the compiler to barf.
Here are my efforts to document compiling C-Code with Small C to an IMG-File on the Psion 3c itself.
Steps:
1. Scrolling through the C-Code
2. Compiling with <Psion>+T
3. Switching to the IMG-Files launcher
4. Running the IMG-File itself and terminating with <ESC>
I apologise for the lousy quality of the the video.
#retrocomputing #epoc16 #sibo #psion3 #smallc
/cc @thelastpsion
The Last Psion | AlexThings I'd like to achieve next year
...with zero pressure - just stuff I'd like to do if I get the chance
- Get as many of the #Psion SIBO C SDK apps rewritten as possible. I really enjoy using #FreePascal for this! It's vastly underrated for writing cross-platform CLI apps.
- Make some code run on #EPOC16 from a tiny/toy #compiler of my own. Not an entire C compiler, just something where I've generated some 8086 (or NEC V30) assembly from something very basic that actually runs, including implementing the TopSpeed calling convention.
- Work out how the #MAME debugger works so that I can add 4MB RAM support to EPOC16. Maybe learn some things about the internals of EPOC16 along the way. Eventually write this updated EPOC16 ROM to flash and get it running on real hardware.
- Make a #PsiDrive PCB that can write to flash drives. Just needs a +16V boost converter added to the board.
- Get an #RP2350 to pretend to be a small Psion SSD, using the on-die RAM and PIO. Bonus if it uses a battery. Extra bonus if it can write to external RAM or Flash.
- Move #libsibo away from the Arduino libraries and over to the Pico SDK. This just feels like the right move, but means I'll need to learn cmake as well.
- Learn how to write good unit tests. It's not a problem with learning frameworks - both fptest and fpcunit are simple enough. My brain is freezing when trying to decide on what to test and why. I know my code will improve once I've grasped this.
There are a lot of moving parts to all of these. Some need me to learn multiple sub-skills, such as 8086 assembly. Like I said, this isn't a list of Things Alex Must Get Done Next Year. I'd be happy if I achieved just one of them.
I'm curious... Which one of these would you like to see the most?
EPOC16
EPOC32
Poll ended at .
Habr 25+Psion Siena: карманный компьютер, который умел больше, чем кажется
Когда я достал из коробки купленный на сайте объявлений Psion Siena, я невольно поймал себя на мысли, что он действительно крошечный. Не «компактный», а именно «миниатюрный», как будто инженеры старались уместить целый ноутбук в корпус чуть меньше футляра для очков, и им это почти удалось. Крышка щёлкнула, экран ожил, и мне подумалось, что я держу в руках не просто карманный компьютер из девяностых, а кусочек эпохи, когда мобильные устройства ещё не умели всё на свете — но старались изо всех сил. У Siena нет Wi-Fi, Bluetooth и даже подсветки экрана. Зато у него имеется на удивление удобная клавиатура и операционная система EPOC, предок той самой Symbian, на которой потом работали миллионы мобильных телефонов в разных уголках планеты. Это девайс из тех далёких времён, когда разработчики думали не о мессенджерах и социальных сетях, а о том, как впихнуть в наладонник календарь, базу данных и блокнот, чтобы бизнесмен мог планировать свои встречи и делать заметки прямо в аэропорту.
#Psion_Siena #psion #epoc #epoc16 #symbian #PsiWin #opl #ruvds_статьи_выходного_дня
Some #Psion news! #plptools, the open source suite of programs for transferring files to and from #EPOC16 and #EPOC32 devices, has some additional maintainers: @captfab, @jbmorley ... and me!
We're looking into how we can take the project into the future. We do have some ideas, but we're taking a considered approach to future development.
plptools currently runs on Linux and macOS (and possibly FreeBSD, NetBSD, Solaris, AIX and HP-UX, although these haven't been tested in a while). I've started work on porting it to #HaikuOS.
The repo has been moved to a new GitHub organisation, which you can find here. https://github.com/plptools/plptools
HIVEMIND: Does anyone have a copy of the TopSpeed Pascal 3.10 compiler?
I've discovered something. I can't unsee it. So now I have to follow it through.
The [TopSpeed] Pascal compiler could also be used to develop software for the Psion series 3 in a roundabout way if used with the PSION s3 SDK, as the environment allowed you to develop Pascal code with C code, headers and libraries you could get functional s3 apps by linking the Pascal code with the required C headers/libs and then compiling everything with the PSION SDK, in rare cases needing a little bit of glue C code.
Source: http://www.edm2.com/index.php/TopSpeed_Pascal
Does anyone have a copy of TopSpeed Pascal? I need to try writing Pascal software for #EPOC16. The documentation would be really handy, too.
#retrocomputing #compilers #retrodev #compiler #askfedi #psion #pascal
If anyone fancies following in my footsteps with #EPOC16 hackery, I've released my updates to #EDisAsm as 0.0.6. First update in a couple of years!
