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<1…78910111213…34>
  • Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …

    ... /> Second:
    variable_name -> (address, type of variable, length in bytes)
    rkd rkd January 2011 Emulators
  • Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.

    ... /> You can keep a "is128" variable which will equal 1 if ... is128 THEN SAVE !n$ CODE address,length: RETURN
    9002 SAVE ... "m:"+n$ CODE address, length: RETURN

    9010 ... /> 9012 LOAD "m:"+n$ CODE address: RETURN[/code]

    Thay ...
    na_th_an na_th_an January 2011 Sinclair Basic
  • Help?Hi All, I wonder if anyone has a few minutes to look at this bit of code I'm working on. I'm trying to move to sprites and want to do it with a scr…

    ... low-byte of the seed variable in memory (rather than ... register pair contained the address of the seed variable and the "INC ... the variable only.

    Because your screen line address lookup ... instruction to increment the entire variable, but there are a ...
    Digital Prawn Digital Prawn January 2011 Development
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... size for each channel is variable length and could include buffers ... /> pop hl - each tile starting address (no backbuffer)
    ldi x16 ... here?
    + setting the tile address.

    And please explain ...
    TVzombie TVzombie February 2011 Sinclair Basic
  • Compiling Basic to MCHello, I have a lot of long Basic programs. These are mostly strategy programs, good but slow. I was thinking about how to speed them up without com…

    ... much more complex generated code (variable acceses cannot be compiled into ... dynamic memory pool, and the address of the variables and indexes ...
    na_th_an na_th_an February 2011 Development
  • Recommend a dev environmentIt's been a while since I last wrote any Z80 assembler - must be over 20 years, and since I wrote any spectrum Z80 assembler more like 25 years. I n…

    ... dependencies like calculate pixel address, modify screen address by moving left/right ... need to place the seed variable in RAM someplace. Doing this ... data that occupy the same address range. Linkers that support multiple ...
    Alcoholics Anonymous Alcoholics Anonymous March 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... system variable PROG
    dec hl ; move hl down one address
    address
    ld bc, 0x15c4 ; address of input ... added to the base
    ; address to give the correct location ...
    push hl ; save font address

    ; convert the ...
    chev chev March 2011 Development
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ... system variable PROG
    dec hl ; move hl down one address
    ; address to give the correct location ... the
    push af ; relevant address in the attributes file from ... , d ; given display file address and stores the
    rrc ...
    chev chev April 2011 Sinclair Basic
  • Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…

    ... a BASIC string variable to any user-specified address and length.
    Digital Prawn Digital Prawn April 2011 Sinclair Basic
  • Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…

    ... channel and altering the relevant address in the CHANS area to ... by POKEing DEFADD with an address where I could set up ... from a non-existent string variable which I'd defined as ... that to a real string variable in the VARS space. The ...
    Battle Bunny Battle Bunny April 2011 Sinclair Basic
  • Minor Update to Gasman's Midi2BEEPDon't know whether this is worthy an announcement, but for those of you who enjoyed Gasman's midi2BEEP utility, a new variant has been made called mi…

    ... /> ay_reg is 16-bit port address that uses the partial decoding ... is grabbed from the system variable and rotated to the correct ...
    chev chev April 2011 Announcements
  • Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…

    ... the room data is of variable length (the size depends on ... IX register to the base address of that room's data ...
    Digital Prawn Digital Prawn April 2011 Development
  • Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…

    ... of variable length. (Otherwise for fixed-length data, the base address of ... 's compressed or contains a variable number of objects then it ... certainly will be of variable length.

    Yes I ... -byte room number to the address of the roomdata for the ...
    Digital Prawn Digital Prawn April 2011 Development
  • multiple songs with savage enginesorry friends, another thread with my stupid questions. maybe wos should introduce a noob section for people like me? :oops: anyway, how does using …

    ... variable, which tells Basic interpreter to not touch memory above certain address ... one byte lower than lowest address used to load data. With ...
    Shiru Shiru May 2011 Development
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... responsible for updating the FRAMES variable based on time passed.
    address of the least sig byte ...
    Alcoholics Anonymous Alcoholics Anonymous May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    Here's another mod for na_th_an's program which uses a bit of machine code to do the line wrapping calculations. Just a first draft; it could probably be tightened up a bit.

    [code]

    10 CLEAR 62999: GO TO 1000
    ...
    ...
    Battle Bunny Battle Bunny May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... variable PROG
    dec hl ; move hl down one address ... hl ; move HL up one address

    ld ... ; move HL up one address
    push hl ; ... /> pop hl ; the first address plus one of the
    ; address to give the correct location ...
    chev chev May 2011 Sinclair Basic
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... it happens at that specific address but not one above/below ... certain state - putting the call address in BC, for example - but ... such a way that the variable (R register or tstates-since ...
    gasman gasman May 2011 Emulators
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... system variable PROG
    dec hl ; move hl down one address
    address
    ld bc, report_j ; address of input ... to the base
    ; address to give the correct location ... given display
    rrca ; file address and stores the INK value ...
    chev chev May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... not storing the character address in a variable (since it doesn't ...
    chev chev May 2011 Sinclair Basic
  • Back to BASIC[U][B]Archaeology guide to programs compiled used MCODERII.d[/B][/U] After various people have been talking about "Frank'n'stein" I decided to finis…

    ... . You should find 32 extra variable names. The location for each ... out the value of the variable 'BX', you'd DPEEK(51397 ... number and its corresponding start address. If you're using the ... />
    Now we know the address of each compiled BASIC line ...
    Jimmy Jimmy May 2011 Development
  • Back to BASIC[U][B]Archaeology guide to programs compiled used MCODERII.d[/B][/U] After various people have been talking about "Frank'n'stein" I decided to finis…

    ... 51027 (which points to the variable 'y') or user-defined variables ... 51365 (which points to the variable 'key').

    If you ... simple JP instruction.
    The address following the JP/CALL should ...
    Jimmy Jimmy May 2011 Development
  • fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …

    ... design of these blocks of address/website/e-mail/telephone/fax ... all telephone numbers are variable length with variable length area codes. For ...
    chev chev June 2011 Development
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... system variable PROG
    dec hl ; move hl down one address
    address
    ld bc, 0x15c4 ; address of input ... added to the base
    ; address to give the correct location ...
    push hl ; save font address

    ; convert the ...
    chev chev June 2011 Development
  • MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…

    ... it picks up the "S$" variable in order to populate its ... I also believe the entrypoint address is different to the uSource ... the BASIC var assignment monitoring address?

    [QUOTE=Woody; ... IIRC the device only used (Address AND NOT (/WR)) for decoding ...
    BloodBaz BloodBaz June 2011 Hardware
  • CrusoeI'm making slow progress in mapping & debugging this game, having to restart several times due to various unfortunate events. The latest was getting …

    ... the main subroutine were leaving variable numbers of superfluous entries on ... except the return to BASIC address. I'll post a final ...
    Battle Bunny Battle Bunny June 2011 Games
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... not storing the character address in a variable (since it doesn't ... For instance, the instructions accessing variable [B]atflag[/B] in the ... 's no need for the variable definition.

    Another ... example is variable [B]crad1[/B] that is ...
    Einar Saukas Einar Saukas June 2011 Sinclair Basic
  • Question about DivIDEHi guys, Tell me this... (please) DivIDE features an "auto-mapping feature transparently maps shadow ROM at important entry points". Depending on …

    ... requires triggering a mapping when address 1366 is access as a ... to capture the IM 1 address, a variable assignment (if you were ... or uSpeech) or any other address. Does DivIDE has a "set ...
    velesoft velesoft June 2011 Hardware
<1…78910111213…34>

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