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Old 07 November 2017, 03:57   #17
Don_Adan
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Join Date: Jan 2008
Location: Warsaw/Poland
Age: 50
Posts: 1,088
Quote:
Originally Posted by meynaf View Post
I can load these files in winuae, and even access the ST's files with crossdos (even though the dll's not seen when simply put in the winuae folder and i had to pollute the windows dir, lol).

However, still no luck with Steem...



If on Amiga yes, but IIRC Amtari needs 68000 so it won't work on my A1200.
Besides, what i want to see now is if these disk images can really work - TOS emulation isn't enough for this.
No, some/last Amtari version works with 68030 and MMU (for catching accesses to Atari ST registers). If i remember right you have 68030 with MMU.
.
info taken from the net.

ST emulators
=============

Atari ST emulators abound, but most of them are very similar, written for the original 7 MHz 68000 Amiga, based on a minimally patched TOS image with scant documentation.

Ive used two which include versions of TOS. The original 140K task had German menus, but an update on Scope PD disk 149 was a bit bigger and worked in English, mostly. Apart from that, theyre very similar and incompatible with Workbench 2.

These tasks start by displaying a menu allowing you to pick the display mode from the three possibilities. Once youve made your choice theres no return to the Amiga, although you can reset by pressing both mouse buttons at once.

You need two floppy disk drives and at least a megabyte of memory for the emulation to start. Most GEM programs work, and you can read, write and format floppies, but disk and display handling have minor bugs; sometimes screen updates are incomplete and disk changes can cause confusion. Writing to floppies is rather slow.

Aminets ST4Amiga comes with assembler source, a program to save the ST ROM, in Pascal and ST compiled code, and a short document which says "Q: Whats the difference between ST and Amiga? A: About 14K". All the versions that Ive seen require a genuine copy of TOS 1.02 and lack support for MIDI and the ST serial port. It is compatible with Workbench 2, unlike older versions.

The most advanced and well-presented ST emulator is AmTari, on the Emulators Unlimited CD. This is a 1992 demo version, with a short German document and no upgrade details, but it has impressive features.

AmTari requires Workbench 2 and a copy of Atari TOS - either version 1.6, or the improved 2.06 release - plus at least 1 Meg of Amiga RAM, with 3 Megs preferred. The full version comes on two disks - one in Amiga and one in ST format - with a printed manual.

Unlike the rest it multi-tasks with Amiga programs. You can determine the amount of memory and CPU time available to the emulator, and the Amiga gets the rest. This neat trick requires memory management, and AmTari expects the 68020 or 68030 MMU, as in Amiga 3000s, rather than the revised 68040 or 68060 hardware.

AmTari works with 720 and 1440K floppy disks as well as the original 360K single-sided format. The registered version supports hard disk via hard files, which are slower than Amiga partitions but allow dynamic extension, so you need not fix the maximum size at the start.

Conclusion
=============

The ST emulators - more accurately, GEMulators - work best on old 68000 -powered Amigas, although 68020 and 68030 are supported by AmTari as long as youve got memory management hardware.
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