display errors on 68k with ECS Denise

[wepl]

Describe the bug
When using WinUAE or vAmiga the display is corrupt/rolling when using ECS Denise.

To Reproduce
WinUAE:
I used Quickstart A1200, but other should work too
Set Hardware - Chipset - Chipset - ECS Denise
insert any boot disk (HD or FD) without any content
boot, so that initial CLI is displayed
-> gfx distorted
vAmiga:
select agnus_revision=ECS_2MB

Expected behaviour
Working as with OCS or AGA.
Problem vAmiga only supports OCS/ECS and OCS is restricted to 512K Chip Memory

Screenshots

Architecture
WinUAE 5.2.0
vAmigaWeb core 2.6.0

CPU

• m68k

Version
Daily Snapshot 20240313

[thatguywiththekids]

Setting ECS for specific chips only does not sound like a config AROS is expected to support. Is there any problem with using a full ECS setup?

[deadwood2]

Comment from Toni Wilen on this issue: "If this is ECS Denise with OCS Agnus: not even official KS support this combination (for example KS 3.1 has broken mouse cursor and a slightly wonky display position using this config)"

[wepl]

It works fine with Kickstart 3.1.
It also worked in some older releases of AROS (don't have exact version ATM).
ECS Agnus + ECS Denise has the same problem.
It's the only way to get more than 512K chip on vAmiga.

[thatguywiththekids]

The setting "Full ECS" in latest WinUAE works fine with AROS here, at least in the test case this issue concerns. I tested both A500+ and A3000 with AROS roms. I can however say that OCS looks terrible.

[wepl]

You can check here https://whdload.de/ctros/CopyrightDestroyersInc_3DT.html
Enter Settings and select agnus revision=ECS_1MB or ECS_2MB and wait for reboot.
You may also select denise revision=ECS, it makes no difference.
If you change to CBM kickstart (kick40063.a600) it works.