Thoughts on DMA
I’ve been reading through Linkers and Loaders for the last couple months, and my brain is very full with toolchain stuff so I figured I’d think about hardware again for a little bit. I think DMA will probably just be […]
Tag: interrupts
Thoughts on exceptions
The next thing to implement is going to be exceptions, or traps, or faults, I haven’t really decided what to call them yet. We’ll need them for syscalls, page faults, breakpoints, and probably things I haven’t realized yet. My current […]
Interrupts are working!
Spent a bunch of today working on microcode and a unit test for interrupts, and got it all working! There are now 8 working interrupt lines that support separate ISRs for each and have a priority system, and there’s a […]
Instruction implementation mostly complete!
Finished off the rewrite of the microcode assembler yesterday, the new one has now taken over as the reference implementation and is the primary microcode assembler used by the simulator. I still want to implement some optimization features later on, […]