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Search Again :: Adv Search 1000 results in 0.143s
<1…17181920212223…34>
  • Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…

    ... Einar,

    Welcome to the party![/QUOTE]

    ... a valid concern! Indeed the current implementation may require up ... which means a large stack. However the partition routine can be ... B] randomly for instance, so the stack size will be close to ...
    Einar Saukas Einar Saukas October 2010 Sinclair Basic
  • Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…

    ... require a stack size of 50K in the worst case, the algorithm ... in order to limit the required stack size? The solution is quite ... we should always store on stack the largest partition (to be processed ... variable [B]b[/B] in the stack. Now we need to preserve ...
    Einar Saukas Einar Saukas October 2010 Sinclair Basic
  • Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …

    ... function: to advance the music to the next note where applicable ... the sound and place the SP (which would be on the stack) back to the ... ] equal means that the frequency of the output is slightly variable ... , causing some detuning of the notes (and several mixing ...
    BloodBaz BloodBaz October 2010 Games
  • Alien8 will not run on Divide?I can't seem to get Alien8 running on my 128+ with Divide. I have the original tape and have loaded into an emulator to create a snapshot, (.z80) an…

    ... bank switching do that lets the game run?[/QUOTE]

    the stack pointer or the code is stored in the RAM area ...
    LCD LCD October 2010 Hardware
  • Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …

    ... could have got the interrupt routine to "break" the main program out ... the sound and place the SP (which would be on the stack) back to the ... all)!

    [quote]So the amount of time taken to ... into a wall' operation), so the pitch is wobbling about all ...
    AY Chip AY Chip October 2010 Games
  • ForthTrying to search for FORTH programs and FORTH articles within the forum is proving to be a complete nightmare!! If I search for FORTH in Infoseek I …

    ... and act to get the software in the archive too...
    JP - do you need the 80K memory extension to run ... games, but after reading the manual I think Forth83 ... and pop numbers off the stack), but it is not ... ] "MINE LAYING"
    PRINT STACK
    VDU 13
    ...
    Jimmy Jimmy October 2010 Sinclair Miscellaneous
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... the task from the system. Execute basicly pushes all the registers on the the stack, saves the stack ... pointer (SP) and a 'CALL' automatically saves the ...
    ASM ASM October 2010 Development
  • Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…

    ... couple of methods that the beginer may not quite ... code to store/restore the stack pointer. I choose to ... you should be learning the correct methods for dealing ... SP change
    ld (stack+1),sp ; Store SP ... line

    stack ld sp,0 ; Reset SP ...
    ASM ASM October 2010 Development
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... out to paging space (the trimmer). However, the first application, although it ... memory. If we loaded the applications in the reverse order, no ... They don't know what the stack is, they don't know ... be spent on improving the look of the case...?
    [/quote ...
    Winston Winston November 2010 Development
  • Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…

    Here is the Z80 sourcecode for the 'stack free' transfer link taken from the O ...
    ASM ASM November 2010 Hardware
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... long to reverse engineer the sourcecode format the O.C.P ... 2

    ld sp,stack
    ei

    < ... />
    defs 256

    stack equ $

    [/code]
    The routines use the stack for speed, a lot ...
    ASM ASM November 2010 Development
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... boot code being held in the stack space??? Maybe that's why ... all know that the stack is used to store the return address for ... snapshot of a game with the stack at the normal location with enough ... store some boot code in the stack area. It would take too ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... like a jigsaw puzzle! The stack would have to be in ... memory avoiding the system variables. Now the tricky part is the Z80 ... A clever routine placed in the stack area will be used to ... These two areas (the fixed repeated area and the stack) cannot be compressed ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... to code is the routine placed in the stack to restore the memory. I ... Cybernoid stack and it ran fine.

    Here is the proposed ... 13 BYTE routine placed on the stack:

    [code]

    ASM ASM November 2010 Sinclair Miscellaneous
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... BIT pushes to the stack once the game executes. If the stack is not in ... during abnormal stack activity as the whole process relies on the stack holding the return ... address to jump start the ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Floating bus on 128K models[b]Background:[/b] i need run code with interrupt enabled but i need use stack instruction to maximize performance in copy/shift/mirror routines. dur…

    ... call what would have been the interrupt routine directly.[/QUOTE]
    the shortest possible IM2 routine - a ... or RETI - will still place the return address on the stack, albeit temporarily.
    Marko Marko November 2010 Development
  • Anyone tried to do an emulation chain?I dont know what the proper name for it is but its where you emulate one machine which in turn emulates another and so on i.e Windows 7 > Virtualbox…

    ... =festershinetop]I dont know what the proper name for it is ... [I]different[/I] emulators in the stack (versus A on B, B ...
    RetroTechie RetroTechie November 2010 Chit chat
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    The only thing that should be different is the 17 BYTES on the stack... ... See the code; LD ... the return address. I tried clearing the 17 BYTES I used on the stack ... BYTES that change in the Bomb Jack stack don't cause ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... memory it will decompress into the whole memory and eventually overwrite ... done is very clever in the order that stuff is uncompressed ... extraction leaves 17 bytes on the stack that wouldn't have otherwise ... will be decoding the last block right at the top of ...
    BloodBaz BloodBaz November 2010 Announcements
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... placed on the stack top without entering the ROM area. Once the stack is verified ... crash - trust me on this! The stack area can be anywere within ... a copy. 'Part3' sits in the stack and is called last to ... /> z80_boot db 243 ; di
    stack db 49,0,0 ; ld ...
    ASM ASM November 2010 Announcements
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... and library includes and chooses the Windows API calls and ... that stupid PUSH parameters on the stack nackers. I don't believe ... conditions.

    Here are the Windows function calls:

    Here is the bat file to build the project:

    ASM ASM November 2010 Announcements
  • New SpecBAS available - Procedures and Functions.Go here: [url]http://www.zxspectrum4.net/forum/viewtopic.php?f=6&t=17[/url] And get the latest if you're interested. I've added procedures and func…

    ... the Stack
    Add "2" to the Stack
    Take the top two items on the stack ... the stack
    take the variable from the top of the stack, and assign the value at the ... top of the stack ...
    Dunny Dunny December 2010 Sinclair Miscellaneous
  • Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…

    ... CALL, but when the capture is finished, the whole routine's work ... to faff about with the stack, so would delay the capture start by ... a few microseconds after the trigger ...
    trellis trellis December 2010 Development
  • Loading a screen in to memory...Hi Folks, I want to load a SCREEN$ in to memory and save it out to RAM disk without it being displayed on the screen. I am worried about over writi…

    If you do a CLEAR 32767 then there's no need to use CLEAR for a higher address again. Using CLEAR 32767 means that all memory from address 32768 to 65535 is reserved for you and won't be used by either BASIC or the stack.
    Paul van der Laan Paul van der Laan December 2010 Sinclair Basic
  • Loading a screen in to memory...Hi Folks, I want to load a SCREEN$ in to memory and save it out to RAM disk without it being displayed on the screen. I am worried about over writi…

    ... used by either BASIC or the stack.[/QUOTE]

    Hi Paul ... RAM disk and then release the non-video RAM back to ...
    Paddy Coleman Paddy Coleman December 2010 Sinclair Basic
  • Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …

    ... high RAM, I have the ISR table, the stack and some large area ... out that if I moved the stack above something like 53428, then ... data (namely the map of the current level). The game is using ... but for the moment the sprite data fits within the remaining 3. ...
    Digital Prawn Digital Prawn December 2010 Development
  • Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …

    ... after seeing the output from the mojon twins in the past I'm ... high RAM, I have the ISR table, the stack and some large area ... out that if I moved the stack above something like 53428, then ... just edit and recompile. The location of the im2 table, etc, is ...
    Alcoholics Anonymous Alcoholics Anonymous December 2010 Development
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