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Author Topic: Is WinUAE an accurate 680x0 emulation???  (Read 2471 times)

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Offline drwhoTopic starter

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Is WinUAE an accurate 680x0 emulation???
« on: July 15, 2004, 03:04:06 PM »
Hi Folks,

Just a quick question. Some of the projects that I am working on are going to need to use some assembler for speed purposes. Most of my development work on the Amiga is done with WinUAE, since I can run it fast, stable and at my laptops max resolution using the Picasso drivers, 1440x900.

I am curious, although WinUAE is an excellent Amiga emulator, is it also an excellent 680x0 emulator from an assembly language standpoint? ie - are there any caveats I should know about before using WinUAE for assembler development?

Thanks in advance,
Mike
Amiga 2000: GVP TekMagic 060@50Mhz C:2MB F:128MB Retina Z2 HydraII
Amiga 3000T: A3640 C:2MB F:128MB Picasso II X-Surf
 

Offline SamuraiCrow

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Re: Is WinUAE an accurate 680x0 emulation???
« Reply #1 on: July 15, 2004, 03:29:55 PM »
AFAIK the timing and execution of WinUAE is accurate.  I've been using it for development myself and haven't run into problems.  (Except some hardware banging code written in Amos.)
 

Offline bloodline

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Re: Is WinUAE an accurate 680x0 emulation???
« Reply #2 on: July 15, 2004, 05:13:08 PM »
Well you can't use certain instructions... like TAS etc...

Offline Piru

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Re: Is WinUAE an accurate 680x0 emulation???
« Reply #3 on: July 15, 2004, 07:08:07 PM »
Quote
Well you can't use certain instructions... like TAS etc...

Why not?

UAE emulates TAS just fine.
 

Offline peroxidechicken

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Re: Is WinUAE an accurate 680x0 emulation???
« Reply #4 on: July 16, 2004, 11:25:55 AM »
The only assembler issue I've had with WinUAE is some mildly annoying behaviour while running MonAm with JIT enabled.  Specifically, it often requires two Ctrl-z presses to achieve what a single Ctrl-z should do - which is to single step the current instruction.  With JIT disabled, MonAm runs as expected.  
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