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Search Again :: Adv Search 1000 results in 0.015s
<1…16171819202122…34>
  • Machine Code noviceHi, I'm starting to learn machine code and wanted to know if you have to use some sort of program to write machine code? Thanks,

    ... paper, then write out the Z80 machine code for each instruction ... doesn't teach you the value of money, then nothing will ...
    monty.mole monty.mole June 2006 Sinclair Basic
  • Machine Code noviceHi, I'm starting to learn machine code and wanted to know if you have to use some sort of program to write machine code? Thanks,

    ... paper, then write out the Z80 machine code for each instruction ... doesn't teach you the value of money, then nothing will ...
    rich_chandler rich_chandler June 2006 Sinclair Basic
  • Extracting the Multiface ROM?Is there an easy way to save the contents of a real Multiface 128 ROM to tape, on a real spectrum, for the purposes of transferring it to PC for emul…

    ... to do is change the value of the IN commands. The ... 'm very rusty with my Z80, and to be honest, I ... /> As I've said, my Z80 is very rusty and you ...
    DEATH DEATH June 2006 Hardware
  • Checksum RoutinesHi there everybody, Does anyone have an 'off the shelf' assembler routine for generating checksums? Thanks Jim

    ... 1. The emulator puts the value 100 (LD H,H) at ... and $1708. This little used Z80 instruction means that the emulator ... routine at address $723B. The Z80 code that is there is ...
    Geoff Geoff July 2006 Development
  • Restore Registers Returning to BASICI should really know this, but I've not written code that requires a return to BASIC for a loooong time. What registers need to be preserved / resto…

    ... only concerned with setting the value of HL', which is done ... my copy of Programming the Z80 to remind myself of EXX ...
    rich_chandler rich_chandler July 2006 Development
  • *WoS database feature request*Greetings, This message is primarily addressed to Martijn, but I've thought of making it public, so that other members may have input on the subject…

    ... rather than the TZX/TAP/Z80/what-have-you inside it ... it can take its md5 value.

    Going back to ... and display the appropriate md5 value behind each file, but that ...
    mheide mheide August 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…

    ... some attempts to sort the Z80 vs 6502 argument out? Couldn ... prime number. Both programs (the Z80 and 6502) would have to ... the rules) and terminate. The value 1 probably wouldn't be ... more programming for just one value, so maybe the rules would ...
    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…

    ... some attempts to sort the Z80 vs 6502 argument out? ... number. Both programs (the Z80 and 6502) would have to ... rules) and terminate. The value 1 probably wouldn't be ... more programming for just one value, so maybe the rules ... a lot more about Z80 code than me from ...
    Matt_B Matt_B 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…

    ... are an initial 28 t-states used in the Z80 version ... states if failed on the Z80 and 16 if passed. ... states if failed on the Z80 and 11 if passed. ...
    The return on the Z80 takes 10 t-states and ... are optimal algorithms. The Z80 version could trivally be further ...
    Matt_B Matt_B 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 TS1000 does have value as a learning / hobby machine ... disappeared. Both the 68xx and z80 went into significant numbers in ... embedded applications, the z80 for its entire life and ... good performance out of the z80 requires:

    * being ...
    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…

    ... : ld a, (hl) ; get a value
    inc hl ; move to ... next value
    ld c, (hl) ; get ... next value to compare against
    cp ... from the 6502 to the Z80. Even so, there are other ...
    Matt_B Matt_B September 2006 Sinclair Miscellaneous
  • What are people using TommyGun to do?So I was just wondering what people are using TommyGun to do?

    ... doing with it?
    My initial guess is that the majority ... it for anything of real value.
    Am I right?
    Kiwi Kiwi September 2006 Development
  • 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…

    ... to have a 7 MHz Z80, with a 3.5 MHz ... have been good for the initial 128, as we know Amstrad ...
    monty.mole monty.mole 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…

    ... to have a 7 MHz Z80, with a 3.5 MHz ... have been good for the initial 128, as we know Amstrad ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • Total Worldwide Sales?Does anyone have an accurate source showing total Worldwide sales for the ZX Spectrum (all models, incl. Timex)? I notice the Wikipedia entry for th…

    ... and West. Rubles had no value because they were not convertible ... way 2 western companies getting value for delivered goods was a ... own copied versions of the z80, dram chips, ROM chips, etc ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • Boulder Dash 3How to complete this level? [url]http://maps.speccy.cz/Boulderdash37.z80[/url] Controls: Kempston joystick

    ... on the left is the value of each diamond collected. colin ... /> for example in the Boulderdash51.z80 snapshot:

    the first ...
    Pavero Pavero October 2006 Games
  • Floating point representationI'm planning on picking up the [url=http://matt.west.co.tt/category/spectrum/openzxrom/]OpenZXRom[/url] project from where I left off a few months ba…

    ... are:

    range (overflow value) precision bits B We Wm ... work with fp for the z80 mainly fp2int; int2fp;fpadd;fpsub ...
    rtunes rtunes October 2006 Development
  • C64 30 In 1 TV Game on Ebay for ?7.50Check it out here: [URL="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130040466346"]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=1300…

    ... snapshot images (T64 like our Z80 files, or the D64 disk ... the missus thinking about the value of computer games and she ...
    Vampyre Vampyre October 2006 Sales
  • Spectrum RAM Paks...This jogged my memory (excuse the pun!!) : [url]http://cgi.ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX-SPECTRUM_W0QQitemZ150057889352QQihZ005QQ…

    ... mode it still gives the value of 65368!
    How's ... places RAMTOP at 64k. The z80 can only handle 64k of ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Sinclair Miscellaneous
  • When could Speccy have been born?Just a pondering excercise for those that know more about the different types of chips in the Spectrum than I. Whilst browsing the z80 page on wiki …

    ... choose components with good price/value ratio, Z80 is not mandatory.
    piters piters December 2006 Sinclair Miscellaneous
  • ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…

    ... possible to get the "correct" value on that test without emulating ... . That's probably because the value of MEMPTR is fixed due ... /> And while I consider the Z80 Exerciser to be an interesting ...
    Metalbrain Metalbrain December 2006 Emulators
  • Small C on Sam help neededI'm trying to make good on some of my old developments that fell by the wayside and one of them uses Small C. The reason I stopped was down to not h…

    ... orders when you OUT a value to the LMPR (low memory ... , and what memory pages the Z80 see's in it's ...
    Quazar Quazar December 2006 Development
  • Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …

    ... all the work, returning some value in the BC register pair ... small C variations on the Z80, 8 or 16-bit return ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …

    ...
    If you have a Z80 processor controlling a device with ... device, then allow the Z80 to fetch it in two ... exception to this with the Z80 when *writing* to a ... to *output* a 16 bit value since when you:

    value all at once with ...
    Winston Winston January 2007 Development
  • 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…

    ... old 40-pin Z80 CPUs - only the bigger Z80 related CPUs.[/QUOTE ... 10MHz flavours of the CMOS Z80...

    Quick check - they ... the parts, or minimum order value.
    Quazar Quazar January 2007 Hardware
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... />
    A single integer return value can be read from the ... /> [/quote]

    Some common z80 assembler directives:

    [code ... 0 ; flag has default 0 value
    text:
    defm "I ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Boxes and Boxes of Books!!![URL="http://zxgoldenyears.com/images/books.jpg"]Yaaaay!!! I got books. I got books. I got books.[/URL] Do you got books? Andrew (Sorry... a …

    ... be difficult to sell your initial print run. A history of ... about the history of the .z80 format etc.
    psj3809 psj3809 January 2007 Sinclair Miscellaneous
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... you need to know your z80.

    Can you set ... will break. Look at the value of HL. This is the ...
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • TommyGun 0.9.x updates** Should be available via the utilities page soon! Please be patient :-) ** I'll be posting all future updates in this thread, instead of creating …

    ... the Model I had a Z80, though. I was given a ... remember you could POKE a value in memory to protect the ...
    JamesD JamesD February 2007 Development
  • Galaksija emulator for ZX Spectrum +3/+2A(black)This is a NEW program/utility/game pack for ZX Spectrum. It is basically an emulator of an ex-Yugoslav computer "Galaksija" which is also Z80 based. …

    ... keeping full control for your Z80 emulation, I thought you were ... emulated it read a saved value from MEM in IX and ...
    Dr BEEP Dr BEEP March 2007 Emulators
<1…16171819202122…34>

Latest Posts

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