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emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... now dot crawl and ula snow - though these are not the ... the code with a full register dump on the PC side ... -
Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
I did try a register rotate program as it seemed ... 've made a little man scroll right smoothly but with no ... -
Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... ;509682]I did try a register rotate program as it seemed ... 've made a little man scroll right smoothly but with no ... -
Official CSSCGC 2011 Competition ThreadHello fellas. The site is up and running. We are already accepting submissions. [url]http://www.mojontwins.com/csscgc2011/[/url] Rules, info, and e…
... the behaviour of the "MEMPTR" register affects the game logic. Very ... />
Hopefully your next game, Snow Clearing Simulator, will be just ... -
Official CSSCGC 2011 Competition ThreadHello fellas. The site is up and running. We are already accepting submissions. [url]http://www.mojontwins.com/csscgc2011/[/url] Rules, info, and e…
... ;523039]Hopefully your next game, Snow Clearing Simulator, will be just ... , set the [b]I[/b] register to something in low RAM ... -
New game! Nanako in CJMC for ZX81!Yup, that's true. We've been busy in crafting a nice, small, simple library to code games in text mode (this is, standard, unexpanded) for the 16K ZX…
... this... Why not a extra scroll register?[/QUOTE]
The VIC ... -
Modern gaming conventions that were in Spectrum games?Out of interest, were any of these things that we take for granted in games nowadays, ever in any Spectrum games? 1. Multiple weapons that you can f…
... , realistic real-time shadows, rain, snow, heat haze, or light sourcing ... />
it was a side scroll shooter, where you controled a ... -
Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
What are you trying to scroll? The screen or sprite graphics ... carried forward in the L register. L is set to 0 ... -
New Game! Maritrini, Freelance Monster SlayerAfter experiencing the sweet taste of success, Maritrini woke up one fine day in a mess of bed sheets and with the biggest hangover she could remembe…
... models don't suffer the snow effect. 48, 128k+ and +2 ... where I can test this snow effect? I've produced a ... needs to set the I register (and table) for IM 2 ... -
Which machine should be emulated at startup?The [url=http://www.worldofspectrum.org/forums/showthread.php?t=37743]previous poll[/url] produced a fairly convincing majority of people in favour o…
... System Preference is handled in Snow Leopard. Everything is so cleanly ... - no fancy side bars, links, scroll bars, or other fancy stuff ... -
Double Dragon Remake: The Development ThreadOk guy's, so this is the new thread that will be focusing on Jim Bagley's development of the Double Dragon remake that was first proposed by myself a…
Some quote about snow effect
[QUOTE]
... models don't suffer the snow effect. 48, 128k+ and +2 ... needs to set the I register (and table) for IM 2 ... -
Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... to the ULA snow one, namely that the IR register pair gets ... -
Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…
... are disabled.
ULA snow is (roughly) when the ULA ... it's just the I register which causes the problem. Your ... , as long as the I register is not $40-$7F (or ... , you should change the I register to a safe value (making ... -
Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…
... proper value for the I register to avoid the effect? 'cause ... it seemed absolutely fine. No snow and certainly no crash. -
Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
When the I register is in contended RAM on ... or +2 Grey the ULA snow will appear. The +3 and ... -
How many full time users of Linux on the forum?How many of you on WOS forum use Linux as a permanent OS replacement (excluding casual duel boot users who also duel boot Windows?). I use Linux Min…
... =http://www.opengroup.org/openbrand/register/xy.htm]registered products[/URL ... .5 Leopard and 10.6 Snow Leopard are listed, but not ... -
The most powerful 8-bit machine, and CPU?Further to the discussion in: [url]http://www.worldofspectrum.org/forums/newreply.php?do=newreply&p=621787[/url] What actually is the best 8-bit ma…
... the stack (or the U register) with a single instruction, allowing ... the CoCo2/Dragon, some hardware scroll (vertically per pixel, horizontally per ... -
NEW Jonathan Cauldwell release MORE TEA VICAR? - 30th ANNIVERSARY GAMEThe long awaited Jonathan Cauldwell game MORE TEA VICAR? cassette version is released today, on the 30th birthday of the Speccy. Available from the …
... ZX128/+2 machines. Game use register I set to value #E5 ... is set ram1, then ULA snow and ram is unstable...
NEW Jonathan Cauldwell release MORE TEA VICAR? - 30th ANNIVERSARY GAMEThe long awaited Jonathan Cauldwell game MORE TEA VICAR? cassette version is released today, on the 30th birthday of the Speccy. Available from the …
... ZX128/+2 machines. Game use register I set to value #E5 ... is set ram1, then ULA snow and ram is unstable...
What's going on during a reset?Always wanted to know this. Why does the screen fill with garbage then white lines on black then just a totally black screen? What is happening?
... instructions as the Z80s PC register romps around deciding that everything ... wait until you see ULA snow :-p
D ...Robocop 3 and Spectrum 128K toast-rackHi all, we are going on with the tests on the new 128K emulator for the V6Z80p board, and we have found something odd: Robocop 3 (designed for the 12…
... /> The ULA bug which causes snow when I is set to ... observes the demo loop, a scroll defect can be seen, nonexistent ...Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... any emu that does 'ULA snow effect' right (or does it ... does 'memory fading' with R register trick, am i right?
Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... any emu that does 'ULA snow effect' right (or does it ... does 'memory fading' with R register trick, am i right?
snow effect and the RAM fade ...Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... 8 lines hidden when vertical scroll is enabled, but the circuitery ... implementetion (in theory) for horizontal scroll is delaying X cycles (for ... with a 8 bit shift register and 8 to 1 multiplexor ... 7.
The vertical scroll is simpler. The counter for ...Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... the snow effect.
For each opcode if the I register ... the video memory using the register R as an additional offset ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... GAMEOVER.
;print car
;scroll road
;random road left ... load a value into a register or register pair.
The instruction ... out!
CHAPTER 4 - scroll and move the road, keep ... , adjust speed.
To scroll the road down the screen ...WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... new screen modes. The mode register has now bits M0,M1 ... with Cobra too, and the scroll is as soft as always ... palette issue. Sometimes a colour register is not well written. There ...CyberbigI found out that Cyberbig is affected by snow effect in FBZX Wii. There is snow in the all screens except in the main menu. I checked that also Spe…
... I did not get any snow effects with the working tzx ... /+2(grey model) is visible snow effect on screen. Game can ... /> - or next way is change register I to value #00-#3F ...CyberbigI found out that Cyberbig is affected by snow effect in FBZX Wii. There is snow in the all screens except in the main menu. I checked that also Spe…
Detection of snow effect in ZX software is ... zx emulator. If value of register I is in range #80 ... then this software is with snow effect (on ZX16/48/128 ... />
On ZX128/+2 is snow effect visible if:
a ...
