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<1…15161718192021…34>
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... think. A compiled language built-in would have been good, but ... then as a compiled binary in memory. Of course, you could have ... that would have reduced available memory even further.

    ... a system with a built in compiler... limit certain features to ...
    JamesD JamesD September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... Z80) that was implemented in 1980, so I don ... However, a lack of memory and a disk operating system ... would.[/quote]
    The memory issue was usually solved by ... not everything had to fit in memory at once. Still, a ... have to put the math in your code)

    JamesD JamesD September 2006 Sinclair Miscellaneous
  • Graphics in Basic??What is the fastest way to draw high rez graphics in Basic. Andrew.

    ... is the place to be in the manual - there's lots ... of nifty stuff in there, and the var you ... because it stores an address in memory.

    Define your character ... set CHARS (using the example in the manual for info on ...
    Dunny Dunny October 2006 Development
  • Font centering problemA while back today, I started coding a simple Othello/Reversi game in BASIC, with the precious aid of BASin (great tool, hope it eventually becomes b…

    ... to keep a small code in memory. How about a small scaling ...
    Arda Arda October 2006 Development
  • VB Emulator UpgradeHas anyone upgraded the VB 6.0 open source of either VBspec or VB81 to the free VB Express 2005 Edition? [url]http://msdn.microsoft.com/vstudio/expr…

    ... , choose New Project.

    In the New Project dialog box ... use one of the pictures in your My Pictures folder.

    Add ...
    dalmudlee dalmudlee October 2006 Emulators
  • Graphics Mask FormatsHi. Just a quick question. I'm curently hacking a little program to aid my in my own ZX development (i'm hoping to build a little collection of tools…

    ... hang of seperate sprite/masks in memory -- too much need for additional ...
    icabod icabod November 2006 Development
  • SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…

    ... actually fill out the space in the file with Zero's ... is to be moved elsewhere in memory - very handy).

    Looking ... two ways to fill in a block of memory, and that's ... thought I'd mention it in case anyone else has a ...
    icabod icabod November 2006 Development
  • SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…

    ... actually fill out the space in the file with Zero's ... is to be moved elsewhere in memory - very handy).
    [/QUOTE]Output ... in this mode (enabled by DEVICE ...) will assemble code to virtual memory ...
    aprisobal aprisobal November 2006 Development
  • Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…

    ... just have gfx for "9876543210" in memory it will leads that after ... [color=red]9[/color]" in the memory then everything will look good ...
    Fikee Fikee November 2006 Development
  • 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…

    ... to run from very low in memory which on the 2068 ... a tutorial on using soundtracker in [URL="http://zxf.magazine. ... comes with it in the documentation directory (in particular the tracker ... % faster. Vortextracker has settings in FILE->OPTIONS->CHIP ...
    Alcoholics Anonymous Alcoholics Anonymous 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…

    ... There is a small difference in the graphic address specified during ... mean an extra byte of memory used for struct_sp1_updates per ... background graphics coming from anywhere in memory. Think of the 2nd display ... idea given the amount of memory given up. Maybe I' ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • I Never Thought I'd Find Myself Back Here Again...My broadband connection decided to fail sometime yesterday. I only noticed it when I came home from work yesterday and at the time I assumed it would…

    ... I assumed it would return in a few hours. It didn ... Glad they don't allow pictures in signitures.... :)

    I remember ...
    Scottie_uk Scottie_uk November 2006 Chit chat
  • Urgent Help needed to fix this: calling all machine code gurusI am currently trying to write tutorials on the amazing Orfeus music composer by Proxima which allows you to do multi channel music through the beepe…

    ... , and then load it anywhere in memory [I]if[/I] you keep ...
    icabod icabod November 2006 Development
  • Urgent Help needed to fix this: calling all machine code gurusI am currently trying to write tutorials on the amazing Orfeus music composer by Proxima which allows you to do multi channel music through the beepe…

    So am I right in thinking

    1. I ... sort itself out in memory.

    I guess, in a game, the ...
    robpearmain robpearmain November 2006 Development
  • Urgent Help needed to fix this: calling all machine code gurusI am currently trying to write tutorials on the amazing Orfeus music composer by Proxima which allows you to do multi channel music through the beepe…

    ... code will swap the routine in to 35072, byte-by-byte ... swap the old code back in, byte-by-byte.

    in memory and just CALL it from ...
    icabod icabod November 2006 Development
  • Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […

    ... any other type of variable in memory.

    Also now has ... sample of debugging spectrum basic in cp/m:

    [code ...
    NotFound NotFound November 2006 Development
  • SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…

    ... Plus put 'pad bytes' (NOPs) in the output file? This isn ... fill in the bytes between with some value? My initial memory loader ... writes it to sequential locations in memory. (Right now, I just 'defb ... want to put any padding in the output file).
    Winston Winston December 2006 Development
  • Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […

    ... /> Where do you store variables in memory map?

    I don ... screen emulator(?) for other sceen memory structure than sinclair's? (eg ... appears somewhere in screen, but ona different hardware with different memory structure ...
    Arda Arda December 2006 Development
  • Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […

    ... /> Where do you store variables in memory map?
    [/QUOTE]
    ...
    The memory map is the usual in Spectrum, the system ... emulator(?) for other sceen memory structure than sinclair's?
    In the Spectrum CP/M version the screen is not memory mapped ...
    NotFound NotFound December 2006 Development
  • 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…

    ... an absolute address in memory after having loadded it in using Basic. What ... really so no worries about memory usage going through the ... roof ) which you scroll about in ... doing things... ...then go ... the question of memory bandwidth, if the memory I/O isn ...
    DonkeyPong DonkeyPong December 2006 Development
  • 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…

    ... on, which was a mistake in hindsight.

    [QUOTE ... an absolute address in memory after having loadded it in using Basic. What ... really so no worries about memory usage going through the ... roof ) which you scroll about in ... doing things... ...then go ...
    Quazar Quazar December 2006 Development
  • 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…

    ... how Sam C forces things in memory when it produces the compiled ... gives to have data and memory pages set up how you ... 8K spare above the screen memory as only 24K out of ... use for various embedded work in my past day-to-day ...
    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 …

    ... and IY can be done in other (faster) ways.[/I][/ ... there.

    And as in the bit from Sam C ... z80 opcodes to split them in half to get a few ... instruction it can still result in faster code when you are ... and want to avoid temporary storing variables in RAM!
    Quazar Quazar 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 …

    ... to use to select a memory address in memory - the address bus ... requires two separate accesses to memory - one access to select address ... Z80 to fetch it in two lumps of 8 ... width of the data bus (in some cases, you hear ... by putting 8 bits in A and the other ...
    Winston Winston January 2007 Development
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... of the Sam's memory as a linear memory map, as when ... /> You can use those values in BASIC to POKE to the ... just store a screen somewhere in memory out of the way!)

    But in C... probably won't cope ...
    Quazar Quazar January 2007 Development
  • 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…

    ... the datablock directly into the memory, how this is affected by ... /> Because the issue is that in a 0x11 block, one bit ... TZX file represents one bit in memory. That isn't the case ...
    Philip Kendall Philip Kendall 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…

    ... ]Because the issue is that in a 0x11 block, one bit ... TZX file represents one bit in memory. That isn't the case ... stored exactly as the bytes in tme memory before the splitting and ...
    Mikie Mikie January 2007 Emulators
  • Problem with SPIN assemblerCan anybody tell me why the following machine code program doesn't assemble in the SPIN assembler? ; my first machine code program ld bc, 5 ret Any…

    ... . This tells the assembler where in memory to put your code.
    rich_chandler rich_chandler January 2007 Development
  • Little character trouble with BASinWell, I'm having some trouble loading fonts into the speccy with BASIC, using BASin r13 for an easier job. When I run code, such as this example... …

    ... . If x is the address in memory for your characters, use:
    Paul van der Laan Paul van der Laan January 2007 Sinclair Basic
  • Little character trouble with BASinWell, I'm having some trouble loading fonts into the speccy with BASIC, using BASin r13 for an easier job. When I run code, such as this example... …

    ... . If x is the address in memory for your characters, use:
    rich_chandler rich_chandler January 2007 Sinclair Basic
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  • I am currently watching.....
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