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<1…15161718192021…34>
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... is that I think the speed difference between the 6809 ... t think any 8 bit CPU from the 80's ... but surely the consistency of speed in the speccy games ... a huge impact on execution speed.

    Just remember, ... can bet they could speed it up no matter what ...
    JamesD JamesD September 2006 Sinclair Miscellaneous
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... think the 6502 vs Z80 speed ratio is higher than 2 ... to get the kind of speed we are talking about here ... is that I think the speed difference between the 6809 and ... 't think any 8 bit CPU from the 80's would ...
    Alcoholics Anonymous Alcoholics Anonymous September 2006 Sinclair Miscellaneous
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... using them since the 6309 CPU came out.

    ... short of an eZ80 or CPU in a FPGA. I'm ... runs at a higher clock speed. All internal clocks, page ... access take place at high speed and with no conflict ... the internal port on the CPU.

    I'll ...
    JamesD JamesD September 2006 Sinclair Miscellaneous
  • How are people developing?Are most coding on actual HW or under emulation, or cross developing?

    ... cross compilers. - Only for target CPU.

    You want ... means to use CPU in best way considering speed, code length etc ... slow process, depends much from CPU architecture, target computer etc. It ... will it select registers of CPU? Diverse CPUs have very ...
    piters piters September 2006 Development
  • How are people developing?Are most coding on actual HW or under emulation, or cross developing?

    ... cross compilers. - Only for target CPU.

    You want ... means to use CPU in best way considering speed, code length etc ... slow process, depends much from CPU architecture, target computer etc. It ... will it select registers of CPU? Diverse CPUs have very ...
    monty.mole monty.mole September 2006 Development
  • You know how the 128K was faster than the 48K Spectrum?Regarding how the Spectrum 128K ran at 3.54 MHz rather than the 48K's 3.5MHz, was this difference enough to be an advantage? If not, then surely Sinc…

    ... trying to say. Although the CPU could easily have been clocked ... port to enable a double speed mode. It would be normal ... speed by default and double speed would be under ... 3 implemented a higher clock speed but could still run old ...
    JamesD JamesD September 2006 Hardware
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... ULA and without some extra CPU power to drive them they ... . It's probably about the speed of a 1541 floppy and ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... overclock the cpu and it drops back to the standard speed for ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... much faster than using the CPU.

    The ...
    [quote]An optional 2x speed z80 to compensate for the ... impact on a 2x speed z80 since the z80 ... br /> Actually, a double speed mode throws off a lot ... CPU and ULA accesses to RAM when running at double speed ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... [quote]
    Actually, a double speed mode throws off a lot ... CPU and ULA accesses to RAM when running at double speed ... alternating RAM access. For double speed, interleaving memory access still ... ULA with twice density and speed should have been available ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • History Channel documentary doesn't even mention the SpectrumI recently saw this documentary about the history of computers and it didn't even mention the Spectrum. Was it really irrelevant when it comes down t…

    ... true in fact, although his CPU couldn't compete with 8 ... end, piracy was 'catalisator' which speed up whole that bumm. Without ...
    piters piters October 2006 Sinclair Miscellaneous
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... -- BEEP is a cpu-driven exercise so the cpu can't do ... /> This sounds like an emulation speed issue. I'm surprised that ... the BEEPer -- it is very cpu intensive so you can't ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • Speccy graphics on CBM64The recent "Starquake" thread had me browsing through Steve Crow's portfolio of games and I was quite surprised when following the links to the CBM64…

    ... crap is the 64's CPU? (Compared to the Z80 of ... like comparing a RISC CPU with a x86 CPU.
    The c64 ... comparing diferent types of processing speed.
    Every instruction on the ... , one way to compare the CPU power of these 2 machines ...
    netraider netraider November 2006 Games
  • Speccy graphics on CBM64The recent "Starquake" thread had me browsing through Steve Crow's portfolio of games and I was quite surprised when following the links to the CBM64…

    ... like comparing a RISC CPU with a x86 CPU.
    The c64 ... 's cpu belongs to the 6502 ... comparing diferent types of processing speed.
    Every instruction on the ...
    AndyC AndyC November 2006 Games
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... a bit in common - Z80 CPU, various graphics modes, cartridge slot ... have the same cpu at about the same speed (z80), the same ... ?? can do some things without cpu intervention. One is that it ... original because of differences in speed.

    MSX1 basic is ...
    Alcoholics Anonymous Alcoholics Anonymous December 2006 Games
  • Mayhem Accelerator - Prototype Complete [Sam CoupI am now pleased to announce that on the 8th June the prototype of the Mayhem Accelerator was finally completed. With work on the accelerator start…

    ... sound, with another 6809(ish) CPU on board. :(

    The ... ) and independent of the main CPU.

    The early Williams ... and a couple of high-speed blitters all running in parallel ... of data for a single CPU to shunt on-screen!!! :wink ...
    Chris P Chris P December 2006 Announcements
  • in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…

    ... ful part number and "Z80 CPU". If their's anything after ... to go with the Z80 CPU... like CTC, DART, PIO...
    speed in the code is just ... the 'maximum' speed the chip is rated for.
    Quazar Quazar December 2006 Hardware
  • in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…

    ... :[LIST]
    [*](Z8400) Z80 CPU Central Processing Unit
    [*](Z8300 ... ) Z80L CPU Central Processing Unit (CMOS, marked ... letters for the maximum clock speed they're rated, for example ... that is not a CPU in the CPU socket. I mean, ...
    Marcelo Marcelo December 2006 Hardware
  • in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…

    ... /> Zilog
    Z0840004PSC
    z80 CPU
    9530 KH

    Quazar Quazar January 2007 Hardware
  • in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…

    [QUOTE=Quazar]Yes, it will work.

    Zilog
    beanz beanz January 2007 Hardware
  • From a book about commodore.."In April 1982, Sinclair released an improved computer called the ZX Spectrum. Compared to the C64, the Spectrum had few technical advantages. It ha…

    ... custom ASIC is perhaps in speed and density and cost once ... to make a computer, a CPU with a colour framebuffer. The ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Sinclair Miscellaneous
  • in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…

    [QUOTE=Pyjamarama]Hi
    I managed to find a Z80 but I do not know if it is the right one
    Z84C0008PEC
    Z80 CPU
    0124 74

    I hope it is the one (...anxious...)[/QUOTE]

    Z84C 0008 PEC
    Quazar Quazar January 2007 Hardware
  • TZX revision 1.20 finalSince everybody seems to agree with the last propositions, the specification for the TZX file format revision 1.20 now becomes final and you can find…

    ... valid reasons for this - the CPU time required to output a ... ]will[/i] negatively impact the speed that edgeloading moves at. It ...
    Dunny Dunny January 2007 Emulators
  • TZX revision 1.20 finalSince everybody seems to agree with the last propositions, the specification for the TZX file format revision 1.20 now becomes final and you can find…

    ... valid reasons for this - the CPU time required to output a ... ]will[/i] negatively impact the speed that edgeloading moves at. It ...
    Luca Luca January 2007 Emulators
  • Uridium on the Speccy: definitive version?Uridium is one of the staples of the C64 shoot-em-up canon. I first played it on the Speccy twenty years ago, but became much more familiar with it …

    ... colours is a loss in speed. That can damage the game ... down to the ratio of CPU power to screen area which ...
    Matt_B Matt_B January 2007 Games
  • I smell burningLast week my computers PSU blew a fuse. I looked to replace the fuse but is solder in place. Feeling lazy I just got my spare PSU of the shelf and r…

    ... for the following (assuming 100% CPU use just to be on ... 2500+ mobile o/c ~3200+ speed
    Radeon 9800XT
    2 ...
    StuBruise StuBruise January 2007 Chit chat
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... a high speed speccy with IDE and eZ80 based CPU and a ... don't mind an ARM CPU, the cores are already in ... combo chip comes out with CPU and 3D on a single ...
    JamesD JamesD February 2007 Sinclair Miscellaneous
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... since it's a pipelined cpu I'm sure that's ... license the core for the cpu you don't have to ... games run at the same speed (only a portion of ... them tie execution speed to the vbi interrupt); however ... an estimate as the relative speed between the ez80 and ...
    JamesD JamesD February 2007 Sinclair Miscellaneous
  • SpecEmu 2.4 releaseSince SpecEmu has been at 2.4 beta for as long as I can remember I think it's about time I made a proper 2.4 release for its users :) Major new feat…

    ... emulates an AtariST at full speed with no frameskipping, using the ... default speed of 200mhz. Of course, it ... ?
    I talked about CastCE. CPU by me is something similar ... how many bit CPU is it, how much of speed is sacrified ...
    piters piters February 2007 Emulators
  • Spritual successor to the Speccy1988-1995 - Atari ST/STe/Falcon 1995-2000 - ? hmmm ? 2000-2006 - Playstation 2 with a keyboard 2007- ?

    ... and having to have the CPU emulated on the Sam's ... run at a decent playable speed!)

    I know of ...
    Quazar Quazar March 2007 Sinclair Miscellaneous
<1…15161718192021…34>

Latest Posts

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