fn kas() -> Kasran {‮{ ‭ @typhlosion@dev.glitch.social

oh wait i'm on my code account. it is not time for anything in the context of code

it is time

aaaaaaaaa

i bet byuu (author of higan and bsnes) would know. but i don't want to ask a silly question

so, the setup procedure for interrupts in the 65c816 (i.e. what happens when, say, the NMI line gets pulled) involves writing some stuff to memory

but, in the SNES the cpu halts while there are DMA transfers happening (because it can't use the bus)

so what happens if the cpu receives an interrupt during a DMA? does it wait until the transfer is over before going to the interrupt handler?

tusky supports multiple accounts now so i can shitpost about fantasy consoles on the go

this may seem needlessly sophisticated/convoluted for a late-90s game console

but (in the fiction i'm building around this fantasy console) the ridiculous excesses and flagrantly weird design decisions of the console's design were what made it never see actual production by the fictional obscure tech company that conceived of it

so if i do something silly, i have an excuse!

i already want a 32-bit data bus, so my 16-bit chip can load or store two words of data at once to/from its registers

one thought i had was to sorta split it into two 16-bit buses that can access different addresses

that way the CPU can fetch instructions with one bus while the other one has some DMA shit going on, so it doesn't have to halt during DMAs like the SNES does

it'd still have to halt if it tries to do a two-word memory op but that's better than nothing

i have a thousand bad ideas pertaining specifically to how my cpu can interact with RAM

uhhhhhhhh

possibly silly question time

can RAM do a read and a write (to different addresses) in a single clock cycle??

more importantly, could the RAM technology of the late 1990s do such a thing?

how am i even supposed to learn the answers to questions like this

my extremely sophisticated code so far
https://dev.glitch.social/media/chrJLvoBz6uh3oHayB4

computer hardware systems are very interconnected which makes it hard to forge ahead without planning

WHAT IS A CHEESE? A MISERABLE FOOD MADE FROM THE PRESSED CURDS OF MILK. BUT ENOUGH TALK!

masto bot idea: automatically fills out "what is a(n) $x? a miserable $y. but enough talk!" for random $x

this thing is gonna be terrible wah