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<1…19202122232425…34>
  • Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…

    ... ULA scan-line precisely. A program can poll IN 0xFF to ... contention, so it can use interrupt mode 2 in 16K.
    program, I can work on another ...
    ewgf ewgf August 2010 New game ideas
  • Flash based rom replacement board for +2A/+3I'm sure I already started a thread about this, but I can't find it... Anyway, this post's to say that I've just sent off the order for the printed …

    ... slow ram area #4000-#7FFF ? Interrupt is disable ?

    As ... [/url] [B]Minimum 10,000 program/erase cycles guaranteed[/B]
    velesoft velesoft August 2010 Hardware
  • ula bookula book is here: [url]http://www.zxdesign.info/book/[/url] can i post sam coupe stuff here - she kind of is a speccy if you stuff the speccy rom i…

    ... needing to constantly recalculate and program the Programmable Raster Interrupt (PRI).
    AndyC AndyC September 2010 Hardware
  • logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…

    ... /> ;------------------------------------------------------------------------------
    ld bc,LenExpr ;Byte counter for my expression string.
    program, I don't think it ...
    mcleod_ideafix mcleod_ideafix September 2010 Development
  • Help! Reverse engineering a Spectrum game[deleted]

    ... )
    04 - A set of interrupt routines, that is; to control ... not necessarily what happens during program execution. If you don't ... that simple means that the program creates its own code while ... and clever parts of the program.

    Hope this helps ...
    ASM ASM October 2010 Development
  • Help! Reverse engineering a Spectrum game[deleted]

    ... to begin with a basic program library shell when starting ... custom parts of the previous program are mainly thrown away ... loader with protection and tape counter
    02 - Hires colour ... reward greater than seing your program complete and functional!!!
    < ...
    ASM ASM October 2010 Development
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... anyway (the interrupt driven real-time tracer\monitor\load counter was a ...
    Turkwel Turkwel October 2010 Sinclair Miscellaneous
  • 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…

    ... your program has taken over the machine disabling the BASIC interrupt and ...
    ASM ASM October 2010 Hardware
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... a dev kit or could program any of the above then ... explanation on how you would program the Mega-Drive:

    interrupt to trigger directly after the ... to access VRAM. A horizontal interrupt is also available, triggered each ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • 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 …

    [QUOTE=AY Chip;485367]The interrupt has only one function: to ... have got the interrupt routine to "break" the main program out of ...
    BloodBaz BloodBaz October 2010 Games
  • 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 …

    ... have got the interrupt routine to "break" the main program out of ...
    AY Chip AY Chip October 2010 Games
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ...
    synchronizing what to an interrupt.....hold on what's an ... interrupt...see the problem[/quote]
    interrupt is something that temporarily interrupts the running program to do ... Z80 wait until the next interrupt occurs. After the HALT ...
    ccowley ccowley October 2010 Sinclair Miscellaneous
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ... an 'Interrupt'. This 'Interrupt' is known as a 'Maskable Interrupt' because ... using the 'DI' (disable interrupt) instruction, the 'HALT' ... program once the 'HALT' instruction has found the interrupt ... br /> 5) We say 'Interrupt acknowledged' to describe the fact ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ... hand, I think that a interrupt-enabled joystick interface would be ... cannot generate a lot of interrupt events with a joystick. As ... with the 50Hz vertical retrace interrupt (are you able to press ... the performance of a Spectrum program is negligible.
    mcleod_ideafix mcleod_ideafix October 2010 Sinclair Miscellaneous
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ... , I think that a interrupt-enabled joystick interface would be ... with the 50Hz vertical retrace interrupt (are you able to ... the performance of a Spectrum program is negligible.[/QUOTE]
    ... ? If the Kempston was interrupt driven I would presume that ...
    Arjun Arjun October 2010 Sinclair Miscellaneous
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ... returns to the main program, and the EI instruction ... />
    Besides, an interrupt control register for each device ... So, in a game program, the programmer would allow ... there's neither interrupt status registers, nor interrupt control registers, because ...
    mcleod_ideafix mcleod_ideafix 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…

    ... br /> ; 0x00400000 - 0x007FFFFF = 4MB Program/Data ROM


    INTEN equ 0000000100000000b ; Interrupt enable.
    INTDI equ ... br /> INTEN_MASK equ 1111111011111111b ; Interrupt enable.
    INTDI_MASK equ 1111110111111111b ...
    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…

    ... /> ; Free to use unoptimized test program to draw two sprites and ... halt ; Wait for next 50hz interrupt.
    ret


    ASM ASM October 2010 Development
  • How to Extract a Font from a Game?I remember it was possible to load/save your own fonts in ArtStudio on my Speccy. I also remember it was possible to loop the loaded block of a game …

    ... to have an old DOS program that would dump a Spectrum ... to hijack the vertical blank interrupt to run my own code ...
    ASM ASM November 2010 Games
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... used for a Y-coord counter keeps jumping suddenly in value ... of incrementing. I ran the program in Fuse using the same ...
    Battle Bunny Battle Bunny 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…

    ... restore the game registers and interrupt mode as I took it ... voice) "Why didn't you program it in C/C++ ?" then ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... 't make any difference - the program still crashes because it eventually ... have no idea. The only interrupt routine running will be the ...
    Battle Bunny Battle Bunny November 2010 Sinclair Miscellaneous
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... loop. If I start the program before I start the tape ... the program data starts, which can crash it. If the loop counter ...
    Battle Bunny Battle Bunny November 2010 Sinclair Miscellaneous
  • 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…

    ... /> ; Free to use unoptimized test program to draw two sprites and ... halt ; Wait for next 50hz interrupt.
    ret


    sekrets sekrets November 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…

    ... /> ; Free to use unoptimized test program to draw two sprites and ... halt ; Wait for next 50hz interrupt.
    ret


    ASM ASM November 2010 Development
  • New game coming soon: PhaetonI have thought that I'll announce it now to build some anticipation ;) I'm almost ready with my new Spectrum game called [B]Phaeton[/B]. It is a g…

    ... 't know that Pentagon generates interrupt at line 192.

    interrupt).

    But it was ... ]
    [/CODE]

    The program waits idle for a lot ... at the start of the program and adjust my code appropriately ...
    Ralf Ralf December 2010 Games
  • New game coming soon: PhaetonI have thought that I'll announce it now to build some anticipation ;) I'm almost ready with my new Spectrum game called [B]Phaeton[/B]. It is a g…

    ... at the start of the program and adjust my code appropriately ...
    velesoft velesoft December 2010 Games
<1…19202122232425…34>

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HitBox

Word Docs Hits
program 21.8K 31.9K
counter 2.9K 4.2K
interrupt 2.6K 4.5K

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