| Re: [hatari-devel] 24bit problem on a 030 ST |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx, exxos <emutos_mailinglist@xxxxxxxxxxxxxxx>
- Subject: Re: [hatari-devel] 24bit problem on a 030 ST
- From: Thomas Huth <th.huth@xxxxxxxxx>
- Date: Thu, 28 Apr 2022 19:36:24 +0000
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On 28/04/2022 14.09, exxos wrote:
Hi all,
I am trying to get TOS206 running with alt-ram. Options are a ST with a 030
CPU. alt-ram set to 32MB. but the problem seems to be that Hatari
automatically enables "24 bit addressing" when it sees a TOS206 image loaded
? if I binary hack that to TOS306, Hatari then boots up, with 24 bit
addressing disabled.
So is there any way to stop that behaviour so I can debug TOS206 with alt-ram ?
Have a look at tos.c :
/* 32-bit addressing is supported only by CPU >= 68020, TOS v3, TOS v4 and EmuTOS */
if (ConfigureParams.System.nCpuLevel < 2 || (TosVersion < 0x0300 && !bIsEmuTOS))
{
ConfigureParams.System.bAddressSpace24 = true;
M68000_CheckCpuSettings();
}
I think it should work if you change the 0x0300 into 0x0200.
HTH,
Thomas