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Groups > comp.sys.sinclair > #410 > unrolled thread

A Slight Return

Started byAndrew Owen <cheveron@gmail.com>
First post2011-09-01 06:16 -0700
Last post2011-10-29 23:27 +0100
Articles 11 — 7 participants

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  A Slight Return Andrew Owen <cheveron@gmail.com> - 2011-09-01 06:16 -0700
    Re: A Slight Return "Brian Gaff" <Briang1@blueyonder.co.uk> - 2011-09-01 21:35 +0100
      Re: A Slight Return Andrew Owen <cheveron@gmail.com> - 2011-09-01 13:43 -0700
    Re: A Slight Return Matthew Westcott <gasman@raww.org> - 2011-09-01 22:46 +0100
      Re: A Slight Return Andrew Owen <cheveron@gmail.com> - 2011-09-02 01:36 -0700
      Re: A Slight Return rogerjowett <rogerjowett@gmail.com> - 2011-10-29 06:09 -0700
    Re: A Slight Return "Paul E Collins" <equi+web@cl4.invalid> - 2011-09-01 22:48 +0100
      Re: A Slight Return Andrew Owen <cheveron@gmail.com> - 2011-09-02 01:39 -0700
    Re: A Slight Return zxbruno <zxspectrum128@gmail.com> - 2011-09-02 10:04 -0700
    Re: A Slight Return rogerjowett <rogerjowett@gmail.com> - 2011-10-29 06:19 -0700
      Re: A Slight Return deKay <andyk@lofi-gaming.org.uk.invalid> - 2011-10-29 23:27 +0100

#410 — A Slight Return

FromAndrew Owen <cheveron@gmail.com>
Date2011-09-01 06:16 -0700
SubjectA Slight Return
Message-ID<ef5334e0-c568-45f6-bb9b-d4666bbc6ec8@glegroupsg2000goo.googlegroups.com>
As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.

http://sites.google.com/site/andrewowennet/zxodus.zip

Enjoy.

-Andrew

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#412

From"Brian Gaff" <Briang1@blueyonder.co.uk>
Date2011-09-01 21:35 +0100
Message-ID<j3oqaa$uqq$1@dont-email.me>
In reply to#410
What does it do?

 David Cameron simulator?

Brian

-- 
Brian Gaff....Note, this account does not accept Bcc: email.
 graphics are great, but the blind can't hear them
Email: briang1@blueyonder.co.uk
______________________________________________________________________________________________________________


"Andrew Owen" <cheveron@gmail.com> wrote in message 
news:ef5334e0-c568-45f6-bb9b-d4666bbc6ec8@glegroupsg2000goo.googlegroups.com...
As a recovering Z80 addict I hope this is the last assembly language program 
I will ever write. I don't believe this particular effect has ever been done 
before, and I don't believe the bog standard 48 has ever been pushed this 
hard. I'm ready to be corrected on these points though.

http://sites.google.com/site/andrewowennet/zxodus.zip

Enjoy.

-Andrew 

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#413

FromAndrew Owen <cheveron@gmail.com>
Date2011-09-01 13:43 -0700
Message-ID<681c38a9-de3d-4b92-8ad4-db18ded6b09a@glegroupsg2000goo.googlegroups.com>
In reply to#412
It does a 144x144 pixel 8x1 attribute area on the bog standard machine.

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#414

FromMatthew Westcott <gasman@raww.org>
Date2011-09-01 22:46 +0100
Message-ID<9cacq4Fk9pU1@mid.individual.net>
In reply to#410
On 01/09/2011 14:16, Andrew Owen wrote:
> As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.
>
> http://sites.google.com/site/andrewowennet/zxodus.zip
>
> Enjoy.

Sorry, beat you to it 5 months ago I'm afraid :-P
http://www.worldofspectrum.org/forums/showpost.php?p=522051

You're the first to get it up and running with 48K timings, though, I'll 
give you that...

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#416

FromAndrew Owen <cheveron@gmail.com>
Date2011-09-02 01:36 -0700
Message-ID<e84ab986-230a-456f-9c3c-0c7ba54ff625@glegroupsg2000goo.googlegroups.com>
In reply to#414
Ok Matt, you demonstrated the principle 5 months ago, but did you do a demo that used it?

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#494

Fromrogerjowett <rogerjowett@gmail.com>
Date2011-10-29 06:09 -0700
Message-ID<a45fba64-c5d9-4bc0-9298-29ae8360e2ff@g7g2000vbv.googlegroups.com>
In reply to#414
On Sep 1, 10:46 pm, Matthew Westcott <gas...@raww.org> wrote:
> On 01/09/2011 14:16, Andrew Owen wrote:
>
> > As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.
>
> >http://sites.google.com/site/andrewowennet/zxodus.zip
>
> > Enjoy.
>
> Sorry, beat you to it 5 months ago I'm afraid :-Phttp://www.worldofspectrum.org/forums/showpost.php?p=522051
>
> You're the first to get it up and running with 48K timings, though, I'll
> give you that...

please help

https://skydrive.live.com/?cid=1c842d5b23e1e0e2#cid=1C842D5B23E1E0E2&id=1C842D5B23E1E0E2%21836

u dont know any info on the 2mhz80 ram or rom available

does the dma manage teh full screen for 8x1 attribtues
sam in BASIC
just type
MODE 2
uses 12kb but you dont need to worry too much about how your scan line
flies and when you can catch her!
if anyone has any idea how to put the top 32768bytes of a speccy 48
emualtor on sam in the external ram or how to move the bbc basic rom
code around for a 128 /+2ab3 or sam - maybe add a few extra features?
pity the bbc basic rom couldnt sit happily on an interface 2 cartrdige
seeing as sinclair couldnt be bothered to include a dma if he loved
JSfW or a Z80/65c2 if he prefered freescape!

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#415

From"Paul E Collins" <equi+web@cl4.invalid>
Date2011-09-01 22:48 +0100
Message-ID<op.v05f7gf3djgvhv@flay.home>
In reply to#410
On Thu, 01 Sep 2011 14:16:23 +0100, Andrew Owen <cheveron@gmail.com> wrote:

> As a recovering Z80 addict I hope this is the last assembly language
> program I will ever write. I don't believe this particular effect has
> ever been done before, and I don't believe the bog standard 48 has ever
> been pushed this hard. I'm ready to be corrected on these points though.

Good stuff. Is it a Speccy? Is it an Amstrad? No, it's ... yes!

Given the nature of the graphics you chose, do you think it could work in  
a turn-based, tile-based game? Maybe a cool multicoloured Speccy NetHack :)

Eq.

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#417

FromAndrew Owen <cheveron@gmail.com>
Date2011-09-02 01:39 -0700
Message-ID<47a651b1-a37b-45c5-a997-9661ad6a46f8@glegroupsg2000goo.googlegroups.com>
In reply to#415
I think a turn-based, tile-based game is just the right thing to do with it. It's annoying that it takes 27 interrupts to redraw the tile map, but that's all the poor machine can manage and still have enough CPU cycles left over to do anything else.

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#419

Fromzxbruno <zxspectrum128@gmail.com>
Date2011-09-02 10:04 -0700
Message-ID<32572616-eda7-4c4b-9fa8-5ce9bdbf0d45@t20g2000prf.googlegroups.com>
In reply to#410
On Sep 1, 6:16 am, Andrew Owen <cheve...@gmail.com> wrote:
> As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.
>
> http://sites.google.com/site/andrewowennet/zxodus.zip
>
> Enjoy.
>
> -Andrew

Amazing!!
I want to play that game already. :(

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#498

Fromrogerjowett <rogerjowett@gmail.com>
Date2011-10-29 06:19 -0700
Message-ID<89e46c5e-f58d-4dd7-8c0a-dd4c042c93e5@f11g2000vbm.googlegroups.com>
In reply to#410
On Sep 1, 2:16 pm, Andrew Owen <cheve...@gmail.com> wrote:
> As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.
>
> http://sites.google.com/site/andrewowennet/zxodus.zip
>
> Enjoy.
>
> -Andrew

doesnt paging the second screen mean you could have a totally
different set of attributes every 50th of a frame - wouldnt that give
two colours per attribtue square or does it blend the two
is there an external video ram page on the mb-02+? how else could it
give 128 compatibilty to a 48? wouldnt it also need an ay8912?
does the multitec timex hi colour style screen use both 128 screens?
when connected to a 128 does it have 3 screen$ available or is one
overwritten or the same as the other?

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#499

FromdeKay <andyk@lofi-gaming.org.uk.invalid>
Date2011-10-29 23:27 +0100
Message-ID<alpine.OSX.2.00.1110292327040.696@imac.dekay.sytes.net>
In reply to#498

[Multipart message — attachments visible in raw view] — view raw

On Sat, 29 Oct 2011, rogerjowett wrote:

> On Sep 1, 2:16 pm, Andrew Owen <cheve...@gmail.com> wrote:
>> As a recovering Z80 addict I hope this is the last assembly language program I will ever write. I don't believe this particular effect has ever been done before, and I don't believe the bog standard 48 has ever been pushed this hard. I'm ready to be corrected on these points though.
>>
>> http://sites.google.com/site/andrewowennet/zxodus.zip
>>
>> Enjoy.
>>
>> -Andrew
>
> doesnt paging the second screen mean you could have a totally
> different set of attributes every 50th of a frame - wouldnt that give
> two colours per attribtue square or does it blend the two
> is there an external video ram page on the mb-02+? how else could it
> give 128 compatibilty to a 48? wouldnt it also need an ay8912?
> does the multitec timex hi colour style screen use both 128 screens?
> when connected to a 128 does it have 3 screen$ available or is one
> overwritten or the same as the other?

Well, this explains the bizarre comment you left on my site!

Can't help you, friend. Never had a Sam.

deKay
-- 
  Lofi Gaming - http://lofi-gaming.org.uk
  Gaming Diary - http://lofi-gaming.org.uk/diary
  Blog - http://lofi-gaming.org.uk/blog
  My computer runs at 3.5MHz and I'm proud of that

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