16 September 2010, 10:39 | #81 | |
WinUAE developer
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Quote:
I had Microbotics VXL30 68EC030 based A500 turbo board in 1990s (Unfortunately I sold it few years later. Which of course was stupid thing to do..) Enforcer worked perfectly fine, all hits were reported correctly. No other program that required MMU worked, even simple ROM remapping software crashed instantly.. |
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16 September 2010, 12:44 | #82 | |
Ya' like it Retr0?
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over 5.5 MIPS from a 25Mhz 030 on an A600 Another WOW is that everything (libs/sys) is in CHIP and thats a 16bit path its even more Amazing!! Amongst this amazing result I must ask why the FPU would slow down the design? talking about metrics for a moment I would be interested with the following CHIP to FAST (MBytes per second) FAST to CHIP (MBytes per second) and I would also like to say what you have it pretty damn awesome! |
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16 September 2010, 12:50 | #83 |
Professional slacker!
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My old Apollo 630 was 6.49mips @33mhz so thats pretty sweet
Last edited by fitzsteve; 29 May 2024 at 14:58. |
16 September 2010, 13:11 | #84 |
The Swede
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16 September 2010, 13:12 | #85 |
Ya' like it Retr0?
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@Stevo
thats pretty damn good methinks for an ECS machine!!! I calculated that Jens adapter @ 33Mhz will be about 7.2 - 7.5 MIPS I also suspect that @ 40 Mhz it will achieve around 8.9 MIPS @ 50 Mhz it will achieve around 11.1 MIPS @ 56 Mhz is will achieve around 12.5 MIPS |
16 September 2010, 13:49 | #86 | |
Professional slacker!
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A603 + Indi ECS + Jens 030 would be awesome Has anyone asked, will it all fit? I know there were problems getting the Indi and Apollo 630 in the same machine. |
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16 September 2010, 14:01 | #87 |
electricky.
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You can't add up MIPS that way. Faster CPU speed always means more memory waitstates - I'd have to use faster memory chips, which is NOT the plan for the A600 board.
It may happen that the 25MHz version is faster than a 33MHz version, because I'd have to insert waitstates to meet all timing parameters. There's a good 20 parameters that you may violate if you carelessly change the clock speed. The A600 accelerator is equipped with 133MHz memory chips. Since I run them in CL=2 mode, the max. frequency is 100MHz. Since I don't do NOP commands between "row open" and "access", the max. allowed frequency is down to 50MHz, which is exactly my "frontside speed". Half of that goes to the CPU. Although it may sound weird, the 50MHz clock rate is pushing the 133MHz memory chips to the limit. Jens |
16 September 2010, 14:09 | #88 | |
electricky.
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Quote:
Jens |
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16 September 2010, 14:13 | #89 | |
electricky.
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The plan is to have ACA630, A603, Indivision ECS and a harddrive-replacement properly fixed in a closed A600 case with an external df0: and no soldering required. Jens |
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16 September 2010, 14:14 | #90 |
Professional slacker!
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16 September 2010, 14:23 | #91 |
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Thats really cool man !!!
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16 September 2010, 15:05 | #92 |
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This is great news. Lovely to see people making hardware for Amiga in 2010.
How would this compare with a Blizzard 1230 Mk IV @ 50mhz? (The accelerator I currently have). |
16 September 2010, 16:03 | #93 |
Thalion Webshrine
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Someone over at Amiga.org wanted to know if these accelerators (or at least the A600 one) one will have a switchless backwards compatibility mode?
i.e. hold down left mouse (or something) during reset to revert to using 68000 I guess the FastRAM (or 8Mbytes of it) wouldn't be available? |
16 September 2010, 16:12 | #94 |
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Could Jens be the first Amiga tech guy to win the Nobel Peace Prize from Nato for these developments?
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16 September 2010, 17:51 | #95 | |
electricky.
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Quote:
Jens |
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16 September 2010, 19:00 | #96 |
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Just a question: the A600 accelerator board can be used in a machine without A603 (with just another chip expansion) and the floppy installed inside the A600 case?
Or it will require necessarily the presence of A603? |
16 September 2010, 19:02 | #97 | |
Thalion Webshrine
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Thanks for that info.
Quote:
@Omolungo I'd imagine a yes. The A603 won't be a requirement, just an option. |
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16 September 2010, 19:25 | #98 |
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In that case one board will be mine
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16 September 2010, 20:09 | #99 | ||
electricky.
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Quote:
With all the screws and mechanics that I'm thinking of for the 600, there will be no way of "quickly removing" the accel. I'll look into a hard-disable-switch for the ACA630, but can't promise anything at this point. Quote:
Jens |
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16 September 2010, 20:29 | #100 | |
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But we will see, for now I wish you a very good work |
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