| Re: [hatari-devel] Bug with "24 bits addressing" and reset |
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Hi,
On 5/31/19 6:11 PM, Thomas Huth wrote:
On 05/05/2019 18.34, Nicolas Pomarède wrote:
Le 05/05/2019 à 17:03, Vincent Rivière a écrit :
....
Vincent, does that fix the problem for you?
IMHO easiest way to test this is checking automatic
32-bit addressing enabling for TT.
------------------------------------------
$ hatari --machine tt --addr24 off --ttram 32 --trace os_base --tos
etos512k.img
...
EmuTOS Version: 0.9.10
CPU type: M68030
Machine: Atari TT
ST-RAM: 4 MB
Alt-RAM: 32 MB
GEMDOS drives: AB
------------------------------------------
=> Works when 24-bit addressing is explicitly disabled.
------------------------------------------
$ hatari --machine tt --ttram 32 --trace os_base --tos etos512k.img
ERROR: Enabling 32-bit addressing for TT-RAM access.
This can cause issues in some programs!
...
EmuTOS Version: 0.9.10
CPU type: M68030
Machine: Atari TT
ST-RAM: 4 MB
GEMDOS drives: AB
------------------------------------------
=> shows the Hatari dialog, but automatic 32-bit address change
doesn't currently work in Hatari.
Your patch seems to fix this:
------------------------------------------
$ hatari --machine tt --ttram 32 --trace os_base --tos etos512k.img
ERROR: Enabling 32-bit addressing for TT-RAM access.
This can cause issues in some programs!
....
EmuTOS Version: 0.9.10
CPU type: M68030
Machine: Atari TT
ST-RAM: 4 MB
Alt-RAM: 32 MB
GEMDOS drives: AB
------------------------------------------
=> TT-RAM present with automatic 32-bit mode switch.
There may be also some extra places where things aren't in sync,
as WinUAE CPU core and Hatari use a different variable for this.
Check "git grep" output for "address_space_24" and "bAddressSpace24".
There's e.g. this:
------------------------------------------
#ifndef WINUAE_FOR_HATARI
if (currprefs.cpu_compatible) {
if (currprefs.address_space_24 && currprefs.cpu_model
>= 68040)
currprefs.address_space_24 = false;
}
#else
/* Hatari : don't force address_space_24=0 for 68030, as the
Falcon has a 68030 LC with only 24 bits */
/* TODO ? Force address_space_24=0 for 68040 ? */
#endif
------------------------------------------
Shouldn't Hatari disable 24-bit addressing also for >= 040?
- Eero