10 June 2017, 18:42 | #41 | |||
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About similarities, i agree. I think it show that there is common things that all the Amiga users have wanted at the time, and if Commodore have delivered that to the community, Amiga will be there today. Quote:
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By the way, have you read this subject and documents about Hombre. If i have these at the time i have wrote my alternate timeline, maybe i have changed some things here and there. Maybe it will be heplfull to you. http://eab.abime.net/showthread.php?t=87342 Last edited by babsimov; 10 June 2017 at 20:00. |
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10 June 2017, 20:43 | #42 | |
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Yes I did read it. The dual-line-buffer feature with zooming is inspired by this. It was done in other projects before Hombre as well, so it felt ok to include this feature in my AAA+ chipset. some ideas of Hombre will also end up in my 3D-module. But also there it is not really Hombre-specific ... only shader and mapper. In my timeline there will be no Hombre, since it is not really a Amiga for me. |
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10 June 2017, 21:03 | #43 | |
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About Hombre, at the time (may 1994) when i first read the specs in a magazine (the same month another magazine tell us the specs for AAA), i'm very happy with Hombre. But when they talk about WindowsNT as operating system... what can i say... it's not an Amiga. Later this year, Commodore UK try to buy Commodore. They said Hombre will be the next generation Amiga with an official AmigaOS port to it (with improvements). To be honest, the PA-RISC choice instead of PPC made me doubt. Apple had followed Motorola and I found that the PA-RISC was perhaps not the best choice. But why not, the engineers of Commodore knew what they were doing. Now with hindsight, i think Hombre would have been the best thing that could have happen to the Amiga. Moving it into the 21st century before time. Engineers talked about having affordable bi-processor (or standard for the high end). Years before two-core processors. At the time the specification of the BeBox impressed me. Jean Louis Gassée said that this was what the Amiga would have become if Commodore had not disappeared. With Hombre, it seems that he was telling the truth. So for me it's downright AAA that it should not have started. Just made the AA+ (AGA improved) to release Hombre in 1992. For me OCS 1985 ECS 1986 AGA 1987 (only for the high end, full 32 bit Amiga, just before Apple release the MACII) AA+ 1989/90 and Hombre 1992. |
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10 June 2017, 21:58 | #44 | ||
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Jay Miner even developed the "Ranger" prototype for Commodore - a new chipset taking advantage of VRAM ... but it would have been incompatible and high end. Last edited by Gorf; 10 June 2017 at 22:11. |
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11 June 2017, 08:55 | #45 |
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What if the A2000 would have been introduced as an A1100 (more advanced to the A1000) and the A2000 would have been a ranger-based high-end model. So cbm would have the low-end A500, a mid-range A1100 and the high-end A2000. The ranger could later on drop in the mid-range A1200 (not the current, but a tower) and a low-end A600 (A model like the current A500+, with an HD and PCMCIA).
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11 June 2017, 11:11 | #46 | ||
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By the way AGA for 1987 have a price tag a little under the MACII, it's a high end computer for the time, full 32 bits, and with a RTG subsystem available at release, for the professionnal market. The mid range is ECS, and low end is OCS, they remain until 1990 when Commodore switch to AA+. In insight, i more and more think AAA, as great it was for the time, is more a ingeneer dream, than a financial competitive chipset for all market. Maybe i'm wrong. About the Ranger, i'm not sure it's really a chipset, it's not clear with the latest news i read about it. I think it's more a code name for the "A2000" like computer from the original team, but this computer as i understand it, is based only on the OCS, maybe a little revised OCS. But at the time, in an Jay Miner interview, he said he had designed and fully tested the next chipset, with high resolution and VRAM. So i don't know what to think. The specs it have found about the Ranger chipset, seems to me to little for be a "next generation" chipset. VRAM ok, but very expensive. Only 128 color, at a time where 256 couleurs start to be the "must have". Only 4096 colors as palette, as a time of 262144 color palettes. VGA is better is these aspects for me. For sound it remain the same. It's OK for a 1988/89 release, but as i see it, all the chipset need a really important upgrade to be up to date for the 90 years. For me a chipset, at release, need to be ok for 4 to 5 years. The AAA would be ok for 5 years, but too expensive as i said. The AA+ can be Ok for 3 to 4 years. A nice feature i take from the AAA to Hombre2 (if i remember correctly) is the dual chipset. AAA have SLI far earlier than Nvidia (or 3dfx not sure). |
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11 June 2017, 14:04 | #47 | |
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Don't forget; VGA was only 640x480 with 256 colours at the start. And most pc's had CGA, EGA at the time of introduction. With VGA just really getting traction around 1990's. In 1995 I bought a VGA computer, with 800x600 16-bit colour. That was just getting standard then. The ranger could do 1024x1024 pixels in 1987 and 128 colours from a 4096 palette (HAM thus simultaneous on screen?) would have been great at that time. I think Ranger would really have brought Commodore the Desktop Publishing supreme reign and Apple might have been obliterated at that time. Maybe Commodore could have been now a days Apple in that scenario. |
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11 June 2017, 15:58 | #48 | |
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So 128 colors for the standard game resolution is not enough. Sorry, i really like the Jay Miner work on Amiga, but i don't see Ranger push it enough. And it seems to be expensive to achieve only 128 colors at low resolution. I really like the AAA specs, this is that i really consider as a next generation Amiga, and it really push the Amiga concept in all area. But it seem expensive even for a high end. This is why, i think an AGA high end computer released for 1987 is enough to compete with MAC/PC of the time. And a AA+ high end for 1989 can make Amiga competitive until 1992/93 for Hombre to be the next generation with early 3D "GPU". These chipset allow 256 colors at low resolution with only DRAM, so it is possible without using expensive VRAM. Ranger don't have chunky pixel, Jay Miner himself have said one of his regret is not to have chose chunky from the start for Amiga. Wolfenstein 3D, Wingcommander are two games that push the PC into the game market and make peoples buy a PC instead of an Amiga. AA+ have chunky pixel for, as i understand it, a reasonnable price. I reaaly think an entry level computer with AA+ at early/mid 90 would have save Amiga. By the way about VGA, i think at the start it is only 320x200 256 colors and 640x400 16 colors. If i remember correctly 640x400 256 colors come at end of the 80 or early 90. But games use 320x200 256 colors from the start on VGA, an VGA is 1987. The ranger as i have liked to be : 1024x1024 2 to 128 colors 800x600 2 to 256 colors 640x400 2 to 512 colors 320x200 2 to 1024 colors EDIT (after rereading my post, why not up to 4096 colors for 320x200, a "true color resolution". HAM still exist for compatibility and give 4096 colors at highter resolution or 32000 colors at low resolution if the palette is 32000 colors instead of the planned 4096 colors). And dual playfield (or more) for all these resolution. Maybe for 320x200 we can have multiple playfield from 16 colors to 512 colors (2 playfields in this case) and more for less than 512 colors for each playfield (i don't know if i explain correctly, sorry for the english). Sound : 2 paula (8 channel 8 bit) Or one paula, but instead of the 68000, they use a 68456 (68000+DSP 56000 integrated) https://en.wikipedia.org/wiki/Motorola_56000 EDIT : In my vision the Amiga was the color computer by excellence (or better to call it a graphic computer) and had to always be ahead of all others on this point, not a follower as it has become. EDIT 2 : I reread the AA+ spec from a french Amiga site : http://obligement.free.fr/articles/aa+.php About cost of the AA+ versus the AAA, it seems the AA+ would have been really really cheaper to produce. Number of transistor for : AAA single chipset 750000, an 1 million for a dual configuration. The AA is a chipset with two chip with 100000 transistor each (200000 for the complete chipset), more than 3 time less than AAA. Alice from the AGA is alone 80000 transistor, so AA+ is very cheap i think and should have been what Commodore release in 89/90. No need to add more than the AA+ offer, AAA is only expensive luxury, i'm more an more convinced of that. Complete ECS chipset is 60000 transistor. @Gorf : Sorry to digress an take a little of your subject. It's just i really have liked Amiga to be there today and i frequently dream how to achieve this if i can "rewrite" Amiga history. Last edited by babsimov; 11 June 2017 at 18:22. |
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11 June 2017, 21:31 | #49 | |
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It also would have made not much sense to diverse the chipset at this early stage - programmers just began to find out, what things were possible on the OCS. And there where not enough units sold yet - computers where still a rare thing. (the best year (sold units) for the A500 was as late as 1990) We need to establish a common ground first. I also did not want to split up the development team and spread resources over too many projects. Thats why I concentrated all efforts towards the development of the AAA+ chipset after a quick and compatible update like the ECS. Only a more or less one-man-project for the Amber-chip would run in parallel: With a few tweaks the Amber would be able to deinterlace a 800x600 SVGA screen mode (productivity Super72) or even 1024x786 XGA. How? Amber stores the odd field (or the even... does not matter here) in a special dual-ported RAM. This RAM was expensive, so they limited it. It is arranged in three 264x4 chips (in total 3072 kBits (not kBytes)), storing the whole 12-bit value of each pixel in one field. But 800x300x12 is 2880k - so it would still fit! Amber was just not fast enough and ignored all screen modes over 15kHz. We fixed that. For higher resolutions we run out of dual-ported RAM :-/ But wait! To store the whole 12-bit for each pixel is only necessary for things like HAM or Copper-magic. So you need this of course for games, but not for a productivity mode: If Amber can "remember" just 4 12bit-values we need only 2 bits per pixel. That is a very minimalistic color-lookup-table (CLUT) - very tiny. We do it like Graffity or DCTV and "teach" Amber this 4 values in the first line of our screen (and thereby losing one line...). A special morse-code of alternating values would make Amber listen to the 4 12bit values we transmit. This way we also restore the whole 12bit-palette for super-highres modes! Theoretically we can store now even QXGA (1600x1200) at 4 colors - but ECS can not feed Amber that fast.... well only with an other trick - the same the A2024 monitor used, by stitching more than one screen together. The total screen would than be updated only at 15Hz or even lower but the picture would be flicker free with a vertical frequency of 60hz or more. Bad for scrolling or other fast movements, but nice for DTP or CAD and Amix. With our slightly tweaked Amber we can now deliver great deinterlaced 800x600 @ 70 Hz, 1024x768 @ 60 Hz und with a faster RAMDAC we even beat the NeXTstation, which had 1120×832 with only 4 shades of grey! Last edited by Gorf; 12 June 2017 at 23:58. |
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11 June 2017, 22:04 | #50 | |
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Exactly how you would take over Atari's assets is another story. You could keep Atari going quite easily since you already have a factory and their R&D costs are low, especially if you refocus Atari's engineers on porting whatever can be ported to your own hardware. You have the CPU in common, so they will feel right at home and a compatibility layer for TOS may also be made, at least given some simple hardware support such as a card with MIDI ports where Cubase expects them to be. Or you just convince Steinberg to make the necessary alterations to the next release of Cubase. It's a terrific market to be in, and if you're not in it, someone else will be. The best point in time would probably be before the Falcon is released, to make sure you don't have to support a still-born platform. As far as I know, the Falcon came very close to not ever being released, since Atari had already decided to leave the computer business in favour of consoles. Unless the bad blood between Tramiel and Commodore got inbetween, an offer for Atari's computer operations could very well be accepted since it would relieve them of that headache while giving them the necessary cash infusion for the Jaguar. Which will fail in any case. |
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11 June 2017, 22:25 | #51 | |||
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The user base is not huge, but considerable. And midi/music is a Atari stronghold back than. Quote:
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We did send Irvin Gould to early retirement anyway. In this whole scenario i don't see any way to rescue cbm or Amiga with Gould still on board. To buy out only the ST line of products sounds very reasonable under this circumstances. But on the other hand this very cash infusion might lead to a far better Jaguar competing our own AmigaPS and other consoles. To play the "console card" in my scenario was just a good way to earn money, attract developers and spread the user base. I am not a console-fan at all and don't like that idea very much, but the CD32 showed the huge potential in this years... But maybe it would work out: the Jaguar would still be late, probably even later, because they will build in more features into the Jag to rival us... so it would ship at the same time as the Sony Prey-station and the SEGA Saturn. Both being competitors we can not avoid anyway.. |
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12 June 2017, 19:53 | #52 | |
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About buying Atari, i think you don't need that. Just add as standard a MIDI interface on all Amiga model (and of course the first) and you get the only Atari strong market. No need to spend money on Atari. Commodore have a sufficient good brand image, to not need the Atari one. Remember Atari, at the time is famous in the game market, but one thing Amiga don't need is a label of "game machine". That what happen in reality, a lot of people think the Amiga is only a game machine and Commodore do nothing to change that at the time. So buy Atari is not a good thing for me. |
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12 June 2017, 23:31 | #53 |
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In the Year 1994
The year Amiga did not go bankrupt This will be the last year I am describing in detail. Until now I did not see too many options, what we could have done differently. We were very restrained by the course of events, the available technology and the market. That way I could describe what we did and why we did it as detailed as I did. In the following years, there will be too many different options, in what direction we go, and I will only lay out one possible path. Also ripples in time are catching up, so in the following years we can no longer take market situation and available technology for granted. But 1994 is of course a year of destiny, so it deserves a longer post. By the way: 4MB of DRAM still cost $150 a single GB hdd $700 a desktop PC from Dell with Pentium60 at least $3000 What did we archive so far? We got rid of the PC business, while the name CBM was still worth something in that market. We renamed ourselves to C.A.T (Commodore Amiga Technologie) and licensed CBM to other PC vendors. With the money we bought InMOS and Epyx (Lynx). We bundled all our efforts to develop and build our AAA+ NG line. InMOS gave as crucial technology, developers and patents. Lynx made us a game publisher. Both was necessary for a successful launch of our new product line. In 1994 we produce the best selling game- and multimedia-console: the AmigaPS The worldwide marketshare is over 60%. Due to the low price it was not really profitable the first 2 years, but this year we reached break even and now money ist coming in - big time! But we also know, that 1995 will be much harder... Our AAA+ Amigas reach a marketshare of up to 25% in some European countries including UK. The share is much bigger when we look at home-users alone. In the US we reach a little over 10%. Introducing CD-ROM to all our NG models reduced piracy considerably - for developers Amiga is the most profitable platform. The CPU: risking the RISC? Last year the Pentium came out and is now finally hitting the market. As usual Motorola is late and the 68060 was not available until this year. Motorola wants to go PPC only and the 68060 is the last of its kind... Apple decided to jump on this wagon and ships the first PPC-Macs. Apple needed something new and shiny for marketing reasons, as they don't do so well these years. We let them have this "win" and stick with the 68060 + DSP for now. Why? The PPC 601 is nowhere near as fast as marketing says. Even worse if you have to emulate the 68K for legacy software (and even parts of the OS as Apple does) The 603 und 604 are very expensive and not available in numbers. But we did build prototype-cards, started to port AmigaOS and will even bring a 604 ZorroIII card next year. Other processor-options?
until than we provide multiprocessing - first with 68K and later with PPC. New Products in 1994 AAA++: this is not revolutionary but more a evolutionary update to our AAA+ design.A5000NG: CPU-Boards: to upgrade your Amiga we provide new CPU boards
The AmigaNG Laptop: with the new energy efficient AAA++ chipset, we can finally replace the old A3000 (ECS) Laptop. the Quake-Module and the Quake-Card: developed together with id-soft and other game-developers, this module provides 3D acceleration for games and applications.Amiga VideoStation: NewTek and MacroSystem are now subsidiaries of C.A.T.only Amiga! the C64-laptop sold reasonable well ... but its over now - we stop the production.AmigaOS: As promised we keep on updating and improving our OS constantly. Last edited by Gorf; 19 June 2017 at 02:32. |
13 June 2017, 02:18 | #54 | |
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Pentium@75MHz 80502, 3.3V, 0.6um, 3.2 million transistors, 9.5W max 68060@75MHz 3.3V, 0.6um, 2.5 million transistors, ~5.5W max* PPC 601@75MHz 3.3V, 0.6um, 2.8 million transistors, ?W max * estimate based on 68060@50MHz 3.9W max, 68060@66MHz 4.9W max The 68060 is 42% more energy efficient and is using 21% fewer transistors compared to the most comparable Pentium while giving similar performance. The 68060 also has considerably better code density than the x86 of probably around 10%. The 68k ISA has encoding room to add ISA enhancements which improve code density while adding enhancements to the x86 increases code sizes. The Pentium was clocked up faster due to economies of scale from 3D FPS games but that is no technical advantage. PPC was not as efficient as hoped either. The 68060 8kB ICache gave nearly the same performance as a PPC 32kB ICache. The 601 transistor count has a lot to do with the extra caches needed by the PPC to match performance with the 68060. No problem as the plan was to clock up the PPC CPUs but that didn't go as intended either. Moving CPU complexity into the compiler had limited success also. So which CPU would you choose again? Motorola management failed to look closely at the technical differences and made a huge mistake also. You would think they would look at the technical data and see the 68060 possibilities for embedded at least since that was their bread and butter. They did end up marketing the 68060 for embedded only actually where it was high end at that time but ended up gutting it for a lower end ColdFire instead of continuing it. The energy efficiency made it a good choice for a laptop at that time even though one was never created. The 68060 was just the start of a CPU line like the Pentium and could have been similarly improved. I doubt it could have clocked as high as the x86 but I expect it could have had better performance for the clock speed. Of course SMP would not be a problem (code density advantages reduce cache requirements per core and maximum clock speeds become less of an advantage). It would also be possible to create a 64 bit 68k ISA (68k_64 like x86_64) in a separate mode also. Then you could have 68k_32 with considerably better code density than Thumb 2 and 68k_64 for 64 bit addressing needs on high end CPUs. The x86_64 ISA needed to add 8 GP registers for descent performance but the 68k already has 16 GP registers making a 68k_64 ISA potentially easier to design and better. I have recently been thinking about creating just such a 68k_64 ISA. You are still looking at the small picture if you are just considering desktops, laptops and consoles. You would want to avoid the eventual decline of the desktop market using hindsight and would want to start early. You would want to allocate development resources toward embedded markets (including small electronic devices where the 68k and AmigaOS small footprint is already an advantage). You can share development costs between classic uses and embedded uses. It may have been possible to cheaply buy the design and rights to the 68060 from Motorola/Freescale/NXP as they have grossly mis-valued it. The 68060 could have been further developed in FPGA and a 68k+Amiga SoC made for further cost reductions. This brings us forward a bit but brings up another good question. Is it still possible to save the Amiga today? Let's say you started with $10 million U.S. dollars. What decisions would you make today? Last edited by matthey; 13 June 2017 at 02:28. |
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13 June 2017, 03:02 | #55 | |||
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@ matthey
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that is the reason, why my A5000 still has a 68060. I have my doubts, we could have licensed the 68K from motorola and developed a 68080 fast enough, so for a short while we would take the PPC road. At a time when the 604 and the G3 were still competitive to x86. We are developing our own CPU, but the bottleneck until 97/98 ist simply the RAM. We are still talking about fast page DRAM or EDO-RAM with 70ns. The CPU clocks went up but the frontsidebus stayed horribly slow. Until our baby is ready we will stick to the 2x68060 setup and for about 2 years PPC - at least the MHz numbers look nice for marketing. The OS needs to become more hardware independent and portable anyway. So our efforts are not in vain. Our CPU will be a totally different animal, that I will describe in one of my next posts. One among many feature will be, that it provides security and protection for a single-adressspace-OS. Quote:
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this would definitely be the Apollo-Core/SAGA approach in my eyes. As dual or quad core ASIC. Maybe with some ideas of my C.A.T CPU to make the OS secure, without changing it into a unix-clone. ... well that are not my own ideas, but based on todays research. For the OS: buy out AOS4 from Hyperion as well as MorphOS and merge it with AROS. And buy the rights for the old OS back from Cloanto. Do we have enough money for all this? Last edited by Gorf; 13 June 2017 at 21:19. |
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13 June 2017, 09:37 | #56 | ||||
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Commodore did own MOS Technologies (although they did *not* keep their fabs modern) and was one of the early adopters of expensive at the time FPGA technology to design their own custom chips. They were working on adding custom features (probably custom SIMD features) to the PA-RISC which they had licensed from HP for the Hombre. They were already vertically integrated and should have had some of the expertise necessary to develop the 68k and may have known who they needed to hire. C= did a poor job of R&D to product, marketing/licensing and managing in general which may have sabotaged any such attempt. A CISC design is more complex than RISC although the 68k should be cleaner and easier to develop than the x86. C= could have done an acquisition of perhaps an AMD or Cyrix if they couldn't hire enough CPU expertise. Quote:
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I documented some ideas when I was part of the Apollo Team before Gunnar decided to go a different route. See the 68kF_PRMv7f.pdf on the first page of the following thread for an idea of user mode enhancements which are possible for 32 bit. http://eab.abime.net/showthread.php?t=83642 I will probably change the ISA names to 68k_32 and add 68k_64. SIMD, MMU and supervisor or hypervisor mode instructions would likely be added last as they are more hardware design specific and don't scale well. A very knowledgeable team would really be needed to develop and fine tune these. Quote:
You wouldn't think it would take much to obtain the rights to most of the AmigaOS like OSs but that is assuming the claimed owners are rational and sane based on actual income generated by their products. It might be cheaper to develop a custom 68k core and create an ASIC though . |
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13 June 2017, 19:21 | #57 | |||||
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Energy efficiency is nice, but thats was not the most urgent thing back than. In these years the MHz-race really started and people would run home from the computer-shop, knowing, when they arrive at home, their new computer would already be outdated The 68060 with 50MHz was late and the Pentium was already available for a whole year. In March 1994 Intel released the P64C with 75Mhz, in June 1995 with 133Mhz. Even the 486DX4 reached 100MHz in 1994 und was very cheap and you could easily upgrade your old board. The 060 still only 50Mhz... When Motorola finally reached 66MHz the Pentium was already at 200 and the Pentium with MMX at 150. To stay in the race we would need at least 68060 with 233Mhz in end of 1997... The PPC604ev reached 340MHz in 97. Quote:
ether go fab-less or build a fab as a joint-venture with other companies. Quote:
In my scenario we secretly kept on developing the transputer-core with some very new design and new ideas - constantly since 1989. As a almost 10-year-plan. Quote:
I hear you. I really do. And we will try to convince Motorola to speed up the 060 as good as they can.. Quote:
Maybe you did read my thread about SMP at the Apollo forum. Basically Gunnar is saying: Yes the core is ready for SMP, but we are not doing it. And that this is not something we should want for Amiga Well I am pretty sure I do want 68K multiprocessing for Amiga. I can't see why not. Also the FPU story is quite confusing. They claim to have it, but for some strange reason the "laziness" of users and customers prevents the team from releasing it... Why do companies around the Amiga have always trouble in communicating with customers? Last edited by Gorf; 13 June 2017 at 20:53. |
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13 June 2017, 19:30 | #58 |
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13 June 2017, 21:13 | #59 |
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back in real time
(not in my alternative timeline but back in real-reality)
The MHz race back in the mid 90s was kind of crazy. Computers finally went mainstream und marketing had found its magic trick: Megaherz equals Horsepower This was stupid and so wrong on so many levels ... but hey people liked it: the more MHz the more powerful your PC is, just like PS and a car. Ok you could try to explain and set it in the right context... the answer would be: ok, so let's take mips instead And just at the time these figures would become relevant Motorola failed to deliver... |
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The 68k is a much more loved processor than the PPC. It was used in many computers, consoles and arcades which have become more popular with the current retro trend. It is very easy to program and debug at a low level. It has a better code density than any other semi-modern general purpose 32 bit CPU giving a tiny footprint with relatively large address space. There is practically no competition in the higher performance 68k CPU market. |
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