Name a worse language than VBA
/dpt/ - Daily Programming Thread
Michael Lopez
Luke James
batch
Jonathan Cruz
english
Xavier Turner
we lambdas now
sepples
Evan Jackson
Writing some data to a nosql database with node.js
Carson Cook
I'm storing one context for each user program (in their PCBs) and then one for the scheduler state.
My SWI handler basically saves the user context back to its PCB, then loads the scheduler's stack pointer and executes whatever function handles the particular system call.
If an interrupt were to arrive in the middle of the SWI handler itself, I don't have anywhere to put its state. I also don't have anywhere to put the state of a function implementing the requested system call if that were interrupted.
Jaxon Martin
Hmm. I think I don't know enough about ARM to give you a helpful answer. Sorry :( I would look for a small ARM preemptive kernel and see how it's implemented. Maybe something like this? github.com
FWIW in my kernel I don't change process context when handling a software interrupt, although I do use the x86 hardware to switch to the current process' dedicated kernel stack. I only ever change process context from the scheduler (which can be invoked by the timer IRQ or by making a yield() syscall.)
Joshua Walker
Added support for enums in my programming language, you can also add "bitflags" prefix to the enum identifier to automatically turn the enum values into bitmask flags, such as:
enum bitflags Color = (Red, Green, Blue, Alpha)
Will result in:
Color.Red = 1
Color.Green = 2
Color.Blue = 4
Color.Alpha = 8
Elijah Edwards
>when you use python for so long that you become python
William Gonzalez
I need a JAVA book with good exercises so I can get a job after uni.
any recommendations?