KnightOS Updates

u/Duke "Tape" Eiyeron March 23, 2015, 04:44:09 PM

Oooh! You got my interest naow.

u/Snektron March 23, 2015, 05:01:07 PM

https://github.com/KnightOS/kcc
i should try it out too... maybe float multiply works here (it fails with SDCC

)

u/SirCmpwn March 23, 2015, 05:01:39 PM

Quote from: Duke "Tape" Eiyeron on March 23, 2015, 04:18:29 PM
Oh. do you have any work done to make something like a C compiler or anything-better-than-asm compiler for KOS?

EDIT : after checking once more the screenshots, I find your UI quite useful and helpful. Do you have any technical infos for doing such graphical UI server like that? I could be interrested into doing such a project for FiXos.

We have a C compiler called kcc that's forked from SDCC. We also have a traditional assembler/linker called scas that is ASxxxx compatible and used for compiling C output. C support is experimental and has known problems, but if you'd like to try it you can compile and install both kcc and scas and then use "knightos init --template=c example" to generate an example project.

We don't have a UI server, but we do have shared code for drawing some parts of the UI. You can read through it here.

EDIT:

Quote from: Cumred_Snektron on March 23, 2015, 05:01:07 PM
https://github.com/KnightOS/kcc
i should try it out too... maybe float multiply works here (it fails with SDCC )

It compiles but I can't promise that it works. We don't have any means of printing floating point numbers so who knows. Here's some code I just wrote:

(edited:)

Last Edit: March 23, 2015, 06:45:45 PM by SirCmpwn

u/Duke "Tape" Eiyeron March 23, 2015, 07:58:52 PM

Noice. I wonder if fixed points are quite efficient on z80. Kristaba once did a small fixed point utility and I keep upsing it almost everywhere. It gave to FXes a signifiant speed boost for usual cases.

u/SirCmpwn March 23, 2015, 08:08:51 PM

Quote from: Duke "Tape" Eiyeron on March 23, 2015, 07:58:52 PM
Noice. I wonder if fixed points are quite efficient on z80. Kristaba once did a small fixed point utility and I keep upsing it almost everywhere. It gave to FXes a signifiant speed boost for usual cases.

Fixed point is just using integers and wavy hands.

u/SirCmpwn March 23, 2015, 10:25:57 PM

Kernel 0.6.7 released

The biggest change of this kernel is the switch to a monospaced font. Your stuff is probably going to look weird.

Features

New monospaced font
RTC starts on boot
getStreamPos function
clockSupported function
drawDecA, drawDecHL, drawDecACIX

Bugs Fixed

getBatteryLevel works
Closing writable streams no longer trashes registers
rectAND and rectOR no longer trashes registers
CSE keyboard driver delay fixed

Download

kernel-headers-0.6.7.pkg
kernel-TI73.rom
kernel-TI83p.rom
kernel-TI83pSE.rom
kernel-TI84p.rom
kernel-TI84pSE.rom
kernel-TI84pCSE.rom

Kernel 0.6.7 on Github

Disclaimer

This release, like all other kernel releases, is only relevant to developers. The kernel also will not run on its own, so if you put this in an emulator you won't get much out of it.

u/Ephraim Becker March 23, 2015, 10:38:24 PM

Where are the Upgrade files? I only see the ROM files.

u/SirCmpwn March 23, 2015, 10:39:50 PM

Quote from: Ephraim Becker on March 23, 2015, 10:38:24 PM
Where are the Upgrade files? I only see the ROM files.

You can get a kernel upgrade file by compiling it yourself (except for the CSE), but for now we don't publish precompiled kernel upgrades since you have to reinstall the entire OS so often anyway when you use KnightOS.

u/Ephraim Becker March 23, 2015, 10:44:50 PM

How do I send the ROM file to my calculator if it's not in .8cu?

u/SirCmpwn March 23, 2015, 10:46:01 PM

Quote from: Ephraim Becker on March 23, 2015, 10:44:50 PM
How do I send the ROM file to my calculator if it's not in .8cu?

Just send the latest nightly to your calculator instead. You can get it from here: http://www.knightos.org/download

u/Ephraim Becker March 23, 2015, 10:47:40 PM

It's still on 0.3.0-43 which is the version before 0.6.7

u/SirCmpwn March 23, 2015, 10:48:28 PM

Quote from: Ephraim Becker on March 23, 2015, 10:47:40 PM
It's still on 0.3.0-43 which is the version before 0.6.7

The userspace version is no longer relevant since we changed KnightOS to a rolling release model. The version on the download page is always the latest version.

u/SirCmpwn March 26, 2015, 11:48:53 PM

Thanks to willem3141, fullly functional date/time support has been merged into the kernel. The settings app has been updated to allow you to set the current time/date, and the castle displays it in the upper right corner. There are also syscalls for working with date/time that are now fully functional.

u/Dream of Omnimaga March 27, 2015, 04:34:50 AM

Good to hear. Will the clock time remain intact even after the calculator crashes? The fact the TI-OS clock resets to 12 AM on every RAM Clear pretty much renders it useless.

u/SirCmpwn March 27, 2015, 01:18:11 PM

Quote from: DJ Omnimaga on March 27, 2015, 04:34:50 AM
Good to hear. Will the clock time remain intact even after the calculator crashes? The fact the TI-OS clock resets to 12 AM on every RAM Clear pretty much renders it useless.

The boot code resets the clock, so if you have to resort to a battery pull then you will lose the time. However, KnightOS offers a better way to recover from a crash. If you press ON+R, so long as interrupts are running, it will immediately reboot.