![]() ![]() ![]() At this point though, I’ve established that I can live my life on wayland, and for the time being I am. I’m still waiting for a stacking window manager that scratches the same itch for me that icewm does, but I’m following labwc with great interest. An X11 apologist tries WaylandĪll in all, I’m very impressed with the work the wayland community has done since I last did a serious look at the state of things. Now, if you want to know the long version of this story, keep reading.Įven more details about the inner-workings of PumpkinOS. If the 68K application plays by the rules and only calls the OS through system traps, never accessing hardware directly, it will also run fine on PumpkinOS. It is very similar to the way PACE ( Palm Application Compatibility Environment) was implemented when PalmOS 5 was introduced. PumpkinOS takes advantage of this fact and, whenever a trap is issued, it intercepts the execution flow, identifies the system call, extract the parameters and calls a native implementation inside PumpkinOS, bypassing a ROM altogether. A trap is like a subroutine call, but instead of jumping to a different memory addresses depending on the system call, it jumps to a fixed address, passing an argument identifying the system call. They used a feature of the 68K CPU called trap. ![]() The short story is this: the developers of PalmOS devised a clever way to implement system calls (also used in other 68K systems, I think). PumpkinOS also allows you to run binary 68K applications, but do not require a copyrighted PalmOS ROM. As long as your implementation of the physical layer is accurate, applications will generally run fine. #Unix disappeared sheepshaver serial#Therefore, as an emulator developer, your job is to provide an implementation of the CPU, memory, display, serial port, and so on, taking into accounting the low level differences between the myriad of devices that ran PalmOS back then. When you run an application PRC in those emulators, everything is emulated down to the hardware layer, so the ROM thinks it is talking to an actual device. This error was discovered in 2020, and now it has been corrected.Ī traditional PalmOS emulator requires a ROM: a binary object that contains the original PalmOS compiled and linked for the 68K architecture. Here’s how this relates to Unicode: the person who originally added this character to Unicode made a mistake, and didn’t count the number of eyes correctly. The final evolution of this character was “ꙮ”, used only once in human history, in the phrase “серафими многоꙮчитїи”, which translates to “many-eyed seraphim”. If there were two eyes, two of these characters would be joined together (“ꙭчи”). The text is a copy of the Book of Psalms, written around 1429 and kept in Russia.īasically, in some old Slavic languages, authors would stylise the “O” in their word for eye (“ꙩкꙩ”) by adding a dot in the middle to make it look like an eye. Rare enough to occur in a single phrase, in a single text written in an extinct language, Old Church Slavonic. The character “ꙮ” (U+A66E) is being updated in version 15.0.0. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |