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Spectaculator/Kempston/Spanish gamesWhen I use the kempston joystick emulation via the keyboard (cursor keys) in Spectaculator some Spanish games (e.g. Nonamed, Jungle Warrior) don't wo…
Surely it's just a matter of partial decoding of the address bus. Ports of 1F and DF would suggest the Kempston interface responds to any address with the bottom 5 bits set. -
An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
... 't do multicolour or floating bus though), and so are the ... -
An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
... 't do multicolour or floating bus though), and so are the ... -
An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
[quote]
On 2004-08-28 21:23, GOC wrote:
Well, the emulator itself is functional (doesn't do multicolour or floating bus though), and so are the most of the main debugging functions
[/quote]
Any chance of a look at this? -
An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
... 't do multicolour or floating bus though), and so are the ... -
Clone Project feedbackFinally i now have some time to start again with my clone project. I have decided to drop the 48k project and go directly on a 128k clone. This migh…
... one of these new Serial bus interfaces that are developed for ... you an internal/external serial bus to all hardware devices/PCBs ... -
Clone Project feedbackFinally i now have some time to start again with my clone project. I have decided to drop the 48k project and go directly on a 128k clone. This migh…
... (independent I/O bus). That will simplify the bus interface and gives ... -
Clone Project feedbackFinally i now have some time to start again with my clone project. I have decided to drop the 48k project and go directly on a 128k clone. This migh…
... (independent I/O bus). That will simplify the bus interface and gives ... -
Games which are just about impossible to *not* completeWe've had a thread about games which can't be completed (revived by me to add Xavior to the hall of shame), so how about games which you're almost ce…
If I recall correctly (can't check due to its status), Bubble Dizzy would fall into that category.
If you got bored you could just leave our eggy little friend standing still and he'd burst enough bubbles to keep him alive indefinately... -
Techy Z80 questions****** Question 1 ****** Take the instruction SET b, (HL). This is broken down (in machine cycles) as follows (according to Microprocessor Technolo…
... +3 is on the data bus and is contended in a ... -
Spin vs Rainbow Islands 128Anyone managed to get Spin 0.504 to load the levels for Rainbow Islands 128 (using the Vault's TZX) without resorting to 'real loading speed' setting…
... the Playstation, which comes with Bubble Bobble and a graphically enhanced ... -
8 BIT WARSwhen 8bits ruled the home market Speccys, C64 and Amstrad were the big 3 fighting it out for supremecy.... but they didnt survive which as we know wa…
... player with your friends on Bubble Bobble or your friend being ... -
Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... CPU and the display RAM. Bus arbitration is a bit tougher ... dual ported RAM anywhere, so bus arbitration is going to be ... -
Chuckie EggHi peeps, a long time ago I wrote the original version of chuckie egg on the speccy. I've just heard about this board and was told I should say hello…
[quote]
Agreed. So what are the other four? Jet Pac? Manic Miner? Bomb Jack? Commando?
[/quote]
You know me too well ! Bombjack and Commando are in my top games list, Bubble Bobble is the other . -
Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... dual ported RAM anywhere, so bus arbitration is going to be ... -
building a computerFor some reason having come of age (25 last feburary) I've begun to get the itch to build my on computer, i.e. from scratch, not plug together pc par…
... cpu, for example, performs certain bus sequences to read from memory ... what goes on in each bus cycle so that you can ... -
Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... The only way to introduce bus delays is to program ... pins properly. Since a bus request is only valid once ... clocks before it needs the bus.
Sure, ... do any sort of bus arbitration is between each ... a benvolent and cooporative bus master of old, the ... -
Cobra - scrollingHi everyone, I have been studying some of the code in Ocean' Cobra game using a debugger, in the hope of improving my own scrolling routines. In cas…
... evil games which uses idle bus reads to synchronise its display ... -
Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …
Cobra and Arkanoid spring to mind due to the floating bus issue.
D. -
Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …
There was a version of Cobra on a Plus 3 compilation disk: The Magnificent Seven, which must use some alternative to the floating bus.
Derek -
Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …
Just checked. The version of Cobra released by the Hit Squad doesn't use floating bus. -
Games not working on the plus 2a/plus3Can anyone please tell me the name of any games that would not work with the plus 2a/plus 3 even in 48k mode? Games that were simply not compatable …
... mind due to the floating bus issue.[/quote]
There are ... -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
... , but I use the floating bus to do it. I guess ... learnt recently that the floating bus can't be exploited on ... -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
... , but I use the floating bus to do it. I guess ... -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
[quote]
On 2004-10-07 17:13, dmsmith wrote:
It is sync'd, but I use the floating bus to do it. I guess you must be using either SPIN or ZX32.
[/quote]
There's nothing wrong with SPIN's floating bus emulation. -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
Yeah, you're right. Seems the latest version on WoS is still v0.41, and that has a pretty poor implementation of the floating bus. -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
... you meant that the floating bus is not available in +2a ... -
Shoot-em-up gameHi everyone, For just over a month I have been working on a shoot-em-up game along the lines of Sidewize / Zynaps, ie. right to left scroller. It is…
You're not missing anything. Dunny accidently built at least the last couple of releases using the old contention/floating bus code. Believe me, your game does not flicker at all when built with the correct source :)
