iiinova — where your digital self keeps evolving

nus-cpu-6. you win some you lose some

100

i probably do want to have ram mapped over the vector area but just unmapped when reset is asserted, so that a program can request fast irq handling if need be. itd just only be writable from inside nmi

pretty much yes. i have some extra considerations like a secondary data stack from 0000-000F and multiple heap banks but stuff like stack swapping and an isolated supervisor stack and heap already factors in. the issue is just that this makes context switches much more expensive

100

itd actually be cool to let the computer turn itself off now that i think about it. some way that you could close a relay whereupon either you or the computer could reopen it again

000

this isnt exactly the 68000 with its spacious 24 bit address space but that can hopefully be smoothed over by just feeding a 65c02 a 10 million hertz clock and just hoping for the best

200

this all comes with the ultra bonus feature of being able to 'hibernate' the computer by just coring everything and then turning it off

100

if i just throw in 512k or a megabyte this makes the costs much simpler and cores are easy. its also enough memory that you dont have to swap out programs youre probably in the middle of using, so when you do need to you can also keep working on something or other while its loading from disk

100

memory either needs to be partitioned extremely finely (lots of banking hardware and software overhead) or all memory accesses have to somehow be os managed (i dont have to explain why this is stupid)

100

a core is a huge deal here though because there isnt all that much memory to work with, and there cant be a global heap for the core to be reloaded.

100

manual scheduling goes a long way here given the disk access speeds, where the ux might look like a menu that lets you core dump a process and load it back later. how this works with the filesystem is probably either 'it doesnt' or 'locks are held by the core file'

100

long time followers will remember the first time i blathered about a 6502 machine meant for swap and multitasking and rest assured i am still thinking about it

moth compute @risipieces.cd-rom.net · 5h

does it look like i know turbo. i only know ultra

010

moth compute @risipieces.cd-rom.net · 5h

pro... its exceedingly tlb mappable. con... there might be self modifying code. pro... there is source code. con... it is written in an x86 dialect i do not understand whatsoever

moth compute @risipieces.cd-rom.net · 6h

impulse tracker on the nintendo 64 is probably doable it just sounds like a massive pain

120

moth compute @risipieces.cd-rom.net · 6h

its crazy how many people only see social spaces as a source to extract value from

apparently it doesnt even have to be decapped... but it probably still has to be replaced to do arbitrary writes

010

yeah it looks like the 64dd enforces a read only portion. someone would probably need to decap and replace the h8 to change that reliably

this is also when we all find out what model nintendo 64 it is

010

im not confident i can get anything massively useful out of it yet with just the One probe lead but insofar as it is possible to read off some clocks and signal levels without short circuiting something i will be doing that

moth compute @risipieces.cd-rom.net · 8h

today is probably the day i explode my nintendo 64 into nintendo 64ths

130

i suspect part of the problem is unlike most other cs topics very few people are actually implementing these things themselves, so the discussion and background is usually only surface level. the other part is that unlike most other parts of the stack it is largely corporate controlled

000

moth compute @risipieces.cd-rom.net · 8h

everyone is scared of computer networking. anyone posts about ip or dns or tls and it is about how its scary

140

dipshit @chigbarg.bsky.social · 10h

in 1907 duncan macdougall measured a body as losing 21 grams in death. this is widely believed to be due to all your unsent posts leaving your body

000

Reposted by moth compute

the replies to this contain 100,000 variations of the "sickos" comic with different self-insert fursonas in them and that's beautiful

4282111

someone is playing horse magnifier right now. i can see it

100

admittedly i was hoping some of them would be edited into the plane windows

my shameful secret is i dont actually know what the pigpen emojis mean

Pebbles - 5/10/2026 1 attempt - 🟢🔵🟣🟣🟣🔴🟤🟤 - 100% (0 pebbles out) zatzhing.me/fidget...

moth compute @risipieces.cd-rom.net · 10h

not to brag but i just saw a snake

moth compute @risipieces.cd-rom.net · 11h

i suspect the 6502 is not the best cpu to steal the bus design from but its also not egregious at least

moth compute @risipieces.cd-rom.net · 11h

new cpu speaks exclusively over ethernet bus... the network is the computer

030

moth compute @risipieces.cd-rom.net · 17h

its boctober. the month thats 35 days long

030

moth compute @risipieces.cd-rom.net · 17h

every writer and their alphabet soup eating dog has explored the relation already. but now its my turn

moth compute @risipieces.cd-rom.net · 17h

i should probably take more advantage of the fact that the number of hours in a day is divisible by the number of months in a year