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  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... was drawn by Deadie / Horrorsoft / CPU. Thanks to demotopia for hosting ... without affecting the engine's speed. SP1, however, can do such ... a thing without impacting on speed. So, inspired by discussion in ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • PS3 - Wintel killer?What do most households use computers for? Here's what I think are the core uses: Games Word processor Spreadsheet Web browsing Email Instant messag…

    ... , they'll buy a faster CPU and a new graphics card ... .

    CPU's are reaching their maximum speed. Therefore the next ... logical step is to integrate the CPU ... stupid enough to buy a CPU thats not compatible with their ...
    Lee Fogarty Lee Fogarty June 2006 Chit chat
  • Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…

    ... ]looks[/I] sort of random. Speed is more important.

    cpu time.

    ---

    48K 48K June 2006 Development
  • SPIN RZX playbackNot sure if anyone has mentioned this, but has anyone else noticed that when you play an RZX file back in SPIN at a hiked up Z80 CPU speed level, tha…

    ... at that speed regardless of the setting in the CPU options - it ... timer (as a hiked up CPU will only generate more opcodes ... plays back at normal slow speed when unmuted, that's ok ...
    Dunny Dunny June 2006 Emulators
  • The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…

    ... a new set - debugger, full speed and frame advance. Clicking frame ... found to be very, very CPU intensive to emulate - it's ... around a 1ghz CPU *at least* to maintain speed, and will require ... do it and still maintain speed, we will - but don't ...
    Dunny Dunny July 2006 Emulators
  • Questions and answers...I'm bored (downloading some Unreal Tournament levels, when they've finished I'm off to scoff my tea), so I thought I'd create this topic with some Ea…

    ... runs at a lower clock speed. As soon as I start ... (a game, mainly) the clock speed increases. It technically overclocks itself ... to your question... some new CPU's (and GPU's) [I ...
    icabod icabod July 2006 Chit chat
  • Game: the GEM machineHi all, I'm moving this game discussion from the Wanted: Game Ideas! thread to here, so we can concentrate on just the game. Any comments/suggestio…

    ... game and hardly exercises the cpu too much (except the scrolling ... ) readability is more important that speed at the moment

    Kiwi Kiwi August 2006 Development
  • 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…

    ... software at the same game speed. The number of unauthorized conversions ... CPU also made the Plus/4 stomp on the C64 for speed ... some clock cycles from the CPU. No, it's not as ...
    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…

    ... they'd done *nothing* to speed up the notoriously slow BASIC ... the load away from the CPU, and hardware scrolling would definately ...
    ewgf ewgf 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…

    ... about CPU efficiency: number of registers.
    It can significantly speed up ... did most of job with CPU registers.
    piters piters 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…

    ... about CPU efficiency: number of registers.
    It can significantly speed up ... did most of job with CPU registers.[/QUOTE]
    Look, I ...
    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…

    ... (less for NTSC) of the speed of the Speccy. Are you ... d like to see which CPU would be favored more by ... Atari has the same clock speed.

    I'd ... would be *about* the same speed as the speccy but when ... in double speed mode would be up to ...
    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…

    ... 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
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