Maybe it's somehow just my setup, but it seems like a standard "blitz" looks wrong in 5.3.0 betas with A1200 quickstart? <= 5.2.0 final doesn't show anything like that. (64-bit version if it matters)
By blitz I mean ye olde:
Code:
start
addq.w #1,d0
move.w d0,$dff180
bra start
(Images removed, no longer matter)
EDIT: Bisecting, I can see it changed with
https://github.com/tonioni/WinUAE/co...fc1cb67b27fe1a
Seems like you may want a v &= 0xFFF somewhere in the "aga_mode" block (that fixes it at least).