rosa ⚬.⚬Apr 22
"wait ARMv9??"
"uh. wrong one. there are two
without the v. ARM9"
"oh uh so it's ARMv4"
"yea- oh no it's. ARM9**E. it's ar-"
"i will destroy britain"
Show thread✧✦Catherine✦✧Apr 22
@qdoit ARM926EJ is uhhh ARMv5TE right
Show thread✧✦Catherine✦✧

@qdoit it's ARMv5TEJ apparently

but nobody cares about Jazelle anyways

Apr 22 at 7:38pmWeb
Show threadjn (eepy low energy)Apr 22
@whitequark @qdoit (hi, i'm nobody;)
Show thread✧✦Catherine✦✧Apr 22
@jn @qdoit tell me more!
Show threadjn (eepy low energy)Apr 23

@whitequark @qdoit i made a writeup a while ago as my entry to BGGP5, the @binarygolf grand prix. Jazelle hardware is extremely common in that era of embedded systems, but licensed software (i presume it had to be licensed from arm) is practically non-existent. the Hackspire (TI nSpire homebrew) people documented how to enter Jazelle mode and how ARM registers map to the Java value stack, i built a sort-of-FORTH on top.

https://codeberg.org/neuschaefer/bggp5-jazelle

bggp5-jazelle

https://binary.golf/5/ meets Jazelle DBX

Codeberg.org
Show threadAled;cdApr 23
@jn @whitequark @qdoit @binarygolf this is amazing lol
Show threadAled;cdApr 23
@jn @whitequark @qdoit @binarygolf it always makes me sad when I see an ARM7/9 without Jazelle
Show thread✧✦Catherine✦✧Apr 23
@jn @qdoit @binarygolf siiiick
Show threadF4GRX SébastienApr 23
@jn @whitequark @qdoit @binarygolf this is fun!