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#3601 | |
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Join Date: Aug 2020
Location: Sydney/Australia
Posts: 1,094
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The Giant Bomb page on the X68000 says it launched at 369,000¥, approximately $2,500 (US) at the time. |
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#3602 | |||
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Join Date: Jun 2010
Location: PL?
Posts: 2,892
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Nope, you can do PAN without significant change - this is like introducing few minor improvements - more radical change can save silicone thus create more room for new features within same silicone budget.
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Perhaps but this is how it works - if small improvements can bring significant performance boost then it is worth to be implemented. Quote:
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Strangely there was no software to use PC bridgeboard with VGA as RTG... Agree on that. A3000 should be first machine with AGA so blame A1200 for this. |
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#3603 | ||||
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Join Date: Aug 2020
Location: Sydney/Australia
Posts: 1,094
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A500 Rev 6A's ECS Agnus had PAL and NTSC software switching. Quote:
2. Offer a lower cost AGA motherboard upgrade. There's no need to throw away the non-motherboard components. Quote:
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A3000 is the best candidate for AGA-on-ECS upgrade. https://github.com/nonarkitten/amiga...-v0.5-(ReAgnus) AGA introduced the fetch-mode for the bitplanes and sprites allowing bigger sprites, more colour depth (up to 8bpp) at resolutions up to super hires. It did not, however, fix this for everything, and the circa-1984 blitter and copper were left wanting. Willoe adds 2x and 4x fetch modes to every DMA channel. All of them. This means a blitter that can run twice or four times as fast. A copper that can run twice or four times as fast. Disk access opening the door to PC floppies that aren't RPM nerfed. And audio playing at an insane 112kHz (CD audio eat your heart out). https://www.buffee.ca/all-the-plans/ |
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#3604 | |
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Join Date: Jun 2010
Location: PL?
Posts: 2,892
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Of course you can glue even most specific solution but is there any practical justification? For example 8237(8257) is used by non Intel CPU's as DMA even if dedicated DMA solution exist within their family, same with some numeric processors ISA agnostic - it will be difficult to wire 80287 to 68030 and 68881 to 80386 but Weitek WTL 3167 can be hooked to both (MC68K require more glue logic) or another example UART - 16550 can be used similarly in Amiga and PC - this make it standard despite being LSI, similar for some network controllers, SCSI controllers, graphic controllers etc etc etc. So some LSI can be considered standard same as standard are RAM, ROM LSI's. |
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#3605 | ||||||||
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Join Date: Aug 2020
Location: Sydney/Australia
Posts: 1,094
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Intel has the leadership to rapidly evolve and defeat most "big iron" RISC competitors in the 1990s and push them out from the desktop computer market. "Only the Paranoid Survives". PC clones can reach a certain price and performance point with 486 class CPU in the $1000 USD and $1500 price range in 1993. PC had a strong 256 color use case. PC clone chipset vendors focus on cost reduced super IO chips while delivering competitive performance. SNES targets the low price segment and they are focused in delivering strong 2D +100 to 256 color gaming experience. Quote:
My employment was part of the supply chain for Australia's vehicle manufacturers. Quote:
Read https://lowendmac.com/1990/macintosh...y-card-8-24gc/ Macintosh Display Card 8·24 GC and Macintosh IIfx were released in March 1990. There's a 3 year interval from 1987's color Quick Draw and 1990's accelerated color Quick Draw. Look in the mirror with your misinformation, hypocrite. ---- In modern times, Apple's M3 40 core GPU has the second best RT performance mobile and pref/watt vendor beating AMD's desktop RX 7800 XT and mobile RX 7900M. AMD needs desktop RX 7900 XT to barely overcome Apple's mobile M3 40 core GPU. Refer to https://www.cgdirector.com/cinebench-2024-scores/ It's a no brainer to why AMD didn't win any new laptop with discrete graphics design wins in CES 2024. PC laptop vendors have shown no mercy on AMD's Radeon group. Quote:
It was marketed like a 8514 compatible clone. Read https://en.wikipedia.org/wiki/IBM_8514 under the clone section Clones In the late 1980s, several companies cloned the 8514/A often for the ISA bus. Notable among those was Western Digital Imaging's PWGA-1 (also known as the WD9500 chip set), the Chips & Technologies 82C480, and ATI's Mach8 and later Mach32 chips. In one way or another, the clones were all better than the original with more speed, enhanced drawing functionality and overall improved video mode selections. Clone support for non-interlaced modes at resolutions like 800×600 and 1280×1024 was typical, and all clones had longer command queues for increased performance. ATI Technologies: the Mach8, Mach32, Graphics Vantage and 8514/Ultra Chips and Technologies: F82C480 B EIZO - AA40 and F82C481 Miro Magic Plus Matrox: MG-108 Paradise Systems: Plus-A, Renaissance Rendition II Desktop Computing: AGA 1024 (also capable of emulating TIGA standards) NEC: Multisync Graphics Engine IIT AGX and Tseng Labs ET4000 are also referenced as being IBM 8514 compatible. AMD's K5 reused Am29K microarchitecture with X86 decoders and it's considered as a clone X86 CPU. The same for Transmeta's VLIW-based microarchitecture as an X86-64 clone. "There's many ways to skin a cat". For the PC market, a clone is a functional duplication from the original PC de-facto standard and the actual internal implementation must be a clean sheet design. It's not wise to copy IBM's designs without a "clean sheet" design. My PC "clone" usage is consistent for both X86 CPUs and PC graphics cards and consistent with the mainstream PC clone definition. Last edited by hammer; 13 April 2024 at 17:54. |
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#3606 | |
Registered User
Join Date: Apr 2017
Location: France
Posts: 663
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Should have been available at least in the A2000 in 1987 when the Amiga software library was in construction and so it would have been took into account. To put things into perspective, the ST which enjoyed all the successful HiRes software we know, was discontinued in 1993. |
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#3607 | ||
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Join Date: Sep 2013
Location: Poland
Posts: 868
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The only difference is that amiga ICs were exclusive when both motorola, zilog, intel, amd etc. chips were widely used in different machines. |
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#3608 |
Registered User
Join Date: Sep 2013
Location: Poland
Posts: 868
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#3609 |
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Join Date: Oct 2020
Location: Bicester
Posts: 2,039
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the subject matter 'Was anyone else disappointed with the A1200?'
if you were then it (the A1200) wasn't for you and that's ok. what you wanted was a PC/MAC or one of the available game consoles. the end. |
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#3610 |
HOL/FTP busy bee
Join Date: Sep 2006
Location: Germany
Age: 46
Posts: 32,091
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#3611 |
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Join Date: Oct 2020
Location: Bicester
Posts: 2,039
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#3612 |
HOL/FTP busy bee
Join Date: Sep 2006
Location: Germany
Age: 46
Posts: 32,091
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I think that's one of the best ways to describe the kind of problem that Commodore had. Of course the A1200 wasn't a bad machine and especially not for the price it sold, but it lacked what made the Amiga exciting in the late 80s.
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#3613 | |
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Join Date: Oct 2020
Location: Bicester
Posts: 2,039
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#3614 | |
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Join Date: Jan 2019
Location: Germany
Posts: 3,332
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Having programmed the TIGA, I can ensure you that the TMS340x0 is not at all compatible to the IBM 8514. It is really a very different horse. To give you a very simple argument, the TMS34010 does not even offer direct access to the frame buffer. As this impacted the design of PC graphics cards a lot, an IBM 8514 clone was often integrated on such cards. |
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#3615 | ||||||||
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Join Date: Jun 2010
Location: PL?
Posts: 2,892
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Trying but with you shuffling partially true, partially not - information's this is difficult. Quote:
Obviously You are immature or with some social deficit - unable to participate in reasonable discussion without expressing emotions and trying to insult someone not agreeing with you - sorry - this is sometimes hilarious, sometimes annoying - i have mixed feelings. Quote:
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8514 clones are compatible at the register levels if not then they emulate 8514 trough different HW by using SW. There was few 8514 clones so you could do bit bang and expect same from IBM design and clone design. Quote:
This is two different things - it is quite obvious to reuse good HW design but perhaps technical subtleties may lead to some modification - it doesn't mean that 29K run x86 binary code as 29K rune OWN code and was used as fast RISC CPU. IBM in past, in some products used MC68000 modified at microcode level to emulate S/370 ISA but this not made MC68000 S/370 compatible CPU. AFAIR Transmeta was never x86-64 clone - only x86 ISA was emulated. Well... if you say so - it s also many ways to provide misinformation especially if by mistake or not author of misinformation seem don't understand technical subtleties... Quote:
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#3616 | ||
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Join Date: Jun 2010
Location: PL?
Posts: 2,892
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My point was that you limited standard to SSI and MSI logic, mostly 7400 family where my point was that some LSI are also standard i.e. largely ISA agnostic. And there is large portfolio for those standard LSI's (VLSI's, ULSI;s etc). IC's like Gayle, Gary are practically useless out of Amiga - you can use them but probably same functionality can be achieved easier, Akiko is very similar, perhaps C2P conversion has some added value but if this is worth something out of Amiga? |
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#3617 | ||
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Join Date: Mar 2018
Location: Hastings, New Zealand
Posts: 2,774
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Wikipedia says:- Quote:
Until Windows 95 became established, mainstream PC graphics was a hardware standard that both games and apps could (mostly) rely on because manufacturers made sure that their chips were compatible. Any differences between them would be handled by the application itself. The Amiga and other home computers were the same, each having its own graphics hardware 'standard'. However the Amiga also had a ROM-based OS with an efficient API that could be used to avoid working directly with the hardware. Of course that API was optimized for the hardware underneath, and the OS internally expected that hardware to be there so replacing it with something different was difficult. In the future this would have to change, like it did with Windows. Luckily Commodore managed to avoid this by going bankrupt and stopping development of the Amiga, so today we don't have to worry about whether our Amigas have compatible graphics hardware. It's funny how some Amiga fans today still suffer from extreme PC envy, to the point where they hold up the IBM 8514 as an example of why the A1200 was so disappointing. But no PC fan back then was concerned about it. So long as they had VGA in 320x200 with 256 colors they were happy (since the alternative was crappy EGA or even worse CGA). The A1200's graphics were in many ways better than a typical PC of the day, yet many fans perceived it as being worse. Why? Perhaps because PC VGA games had more colors than OCS, and new games were coming out on the PC first and then being badly ported the Amiga (if at all). To counter that the A1200 had to be light years ahead of a high-end PC, which of course it wasn't and couldn't be. |
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#3618 | ||
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Join Date: Jan 2019
Location: Germany
Posts: 3,332
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Back then, this was a very advanced concept (and the TMS a very fine chip), just on the expensive side, and its host interface sucked. Quote:
When the Amiga started, it actually was *quite* ahead of the PC (maybe not lightyears, but noticably). When it came under CBM management, that changed and around the time of the A1200, it was pretty close, and no longer ahead of anything else, also thanks to such great management decisions. Of course also because the machine was perceived, and advocated and marketed as a toy, so "serious users bought serious boring machines" that were quite behind at the beginning. |
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#3619 | |
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Join Date: Mar 2018
Location: Hastings, New Zealand
Posts: 2,774
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If you didn't have an Amiga in the late 80's the A1200 would have been just as exciting as the A500 was in 1987. But because you had "been there, done that" it was just more of the same. The PC was a bit different, and so was exciting if you weren't familiar with it. I bought an IBM JX in 1990, 3 years after getting the A1000. Despite being totally inferior to the Amiga, I found myself becoming more interested in it. I bought an extra internal floppy drive, upgraded the BIOS and DOS to 3.3 (now supporting 720k 3.5" disks, woohoo!), and expanded the memory to 512k by soldering chips over the existing ones on the RAM board. Bought a serial mouse and had to hack the driver to get it working. Then I wrote a paint program mimicking Deluxe Paint, using the JX's 16 color (PC JR/Tandy) 320x200 graphics mode. But why would I spend so much time on such a crappy machine, when I had an Amiga which was so much better? Because I had never owned a PC before so it was new and exciting! |
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#3620 | ||
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Join Date: Mar 2018
Location: Hastings, New Zealand
Posts: 2,774
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IBM introduced the PC-AT in 1984 with a 6 MHz 80286 (equivalent to or slightly faster than an 8MHz 68000), EGA graphics with sharp 640x350 flicker-free graphics in 16 colors, 1.2 MB floppy drive, 20 MB hard drive and up to 512kB of RAM on-board. It was much more expensive the A1000, but also much more capable. When Commodore bought the Amiga in 1984 it only had composite video output with insufficient resolution to do hires properly. Its multitasking GUI OS was incomplete and full of bugs, and it didn't even have a DOS. Compared to the PC-AT it was a joke for anything except TV games. Commodore took that design and give it RGB output, added DOS and stabilized the OS so it was actually usable as a computer which could rival the PC. The A1000 sold for the same price and was much better than the IBM PC JR, but the PC JR wasn't 'the PC'. In fact the PC industry treated it as a joke (which it deserved). But the PC industry also treated the Amiga as a joke. What, no text mode? Where's the hard drive? Why does it flicker in hires? Quote:
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