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EPROM InfoHi guys. I'm looking for info about a 27C256 EPROM. Does anyone know if toggling A14 high/low selects the upper/lower 16K banks? Cheers
... of chip. I would say lower/upper halfs.
I use ... - selectable simple via upper address lines.[/QUOTE]
Yeah I ... -
Problem with rotating procedureHi folks! I wrote a proc in z80 asm, based on: x' = x * cos (z) - y * sin (z) y' = x * sin (z) + y * cos (z) I used a precalculated table of sin a…
... byte and X maps to lower byte of the lookup address ... less time than drawing points / lines / solid triangles. So, while it ... -
Game: the GEM machineHi all, I'm moving this game discussion from the Wanted: Game Ideas! thread to here, so we can concentrate on just the game. Any comments/suggestio…
... , 255
[/code]
Lines 3 and 5 are repeated ... , 88, 0, 24, 24, [color=red]0[/color], 48, 0, 255
color=red]24[/color], 255
defb 3 ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... that reguard where the Tandy Color Computer and later C128. < ... was cute, cheap, had color and sound. The whole reason ... /> Even though the Spectrum's color and sound were pretty limited ... or their designs & assembly lines were too expensive to compete ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... /> As Timex pushed the price lower and lower (the first computer under ... more powerfull machines. No sprites, color wasn't selectable down to ... -
Bipboi Beta 2007.12Ok, this will be the final beta for a while, so I can add more levels etc. But, I have tried to respond to all comments. Some liked the origional k…
... to hang around between the lower two nasties, waiting for the ... of hanging around between the lower two blocks.
You ... too quickly. Something along the lines of the coloured-star collecting ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... even though it takes more lines of code to do the ... and a C64 bitmapped 4 color display uses twice that! Go ... to a 16 color display on another machine and ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... , faster (even at 3 times lower clock) than Z80 make some ... /> C64 has display modes with lower res. and not to mention ... it beause of limited color res.
Real color 3D started with ... , with displays capable for free color for any pixel. -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... runs hudreds of thousands of lines code for stuff like this ... . (you want to use the lower number I'm sure)
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... runs hudreds of thousands of lines code for stuff like this ... . (you want to use the lower number I'm sure)[/QUOTE ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... up an object and draw lines between them. This way ... time and then draw lines between the points you ... over 50 instructions and the lines are guaranteed to meet. ... recalculate.
If 3 lines meet at 1 point that ... that on the Tandy Color Computer even in BASIC ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... the speccy drawing all the lines needed in each frame as ... said here that C64 uses lower resolution in some games. By ... is obviously that C64 uses lower horizontal res. at Elite - 160 ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... has a selectable forground color and a background color. So, it's ... you select forground and background color for each block. That means ... 3D area and draw the lines like the speccy.
Another ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... said here that C64 uses lower resolution in some games. By ... is obviously that C64 uses lower horizontal res. at Elite - 160 ... version fills in the required lines on screen (hence the flicker ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... probaby faster to draw lines in the 4 color mode than do ... math is slower than drawing lines.
But then it may ... of all three reasons.
Color for the bottom of the ...Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…
... worthwhile use? Saying:
[COLOR=red]"BASin or Sinclair Basic ... suited for 5 year olds."[/COLOR]
is as ... and waste of potential, resources" [/COLOR][COLOR=black]then you must surely ... it. Typing in a few lines of BASIC, as they occur ...SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…
... : 1, warnings: 0, compiled: 19 lines, work time: 0.000 seconds ... which consisted of circa 20 lines and ended with RET command ... fixes and improvements.
Download: [color=red][...see first post ...Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... the block share the same lower byte of address. Moreover, they ... share the same lower byte with block's attribute ... swizzle also processor's address lines so that the bitmap memory ...Questions from the new owner of a grey Spectrum +2I managed to pick up a grey Spectrum +2 off of ebay with cheap shipping (I'm in the US... it was $13 total and it has a Donkey Kong tape inside) and …
... lines :oops:
The correct wiring is
[FONT=Fixedsys][COLOR ...My Dell TFT Monitor deadMy Dell E171FPB monitor is dead... it wont turn on... even the LED wont come on.... I've checked the usual...cable and fuse.... I am trying to dism…
... could not access all the lines as they are double tiered ...
[b]Right Side Lower Tier[/b] PSU to Visual ...Star Heritage::TranslationHi all! I am almost finished with a translation of a Russian adventure game Star Heritage (demo) to poor English. I need a volunteer(s) with a good …
... panel is located in the lower third of the
screen ... switches
between BW and Color mores.
13. Save ...Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…
... of char (it is seven lines) and the bottom will be ... : if we store "9876543210[color=red]9[/color]" in the memory then ... "0" and then first 7 lines of second "9".
then ... ". and next time all 8 lines of "9" will be displayed ...Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…
... new to me, sound and color support, thats why I want ... Date 09/15/1983
Lower Frequency 54.0
ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…
... />
3) In the lower 2/3 lines of the screen I ...ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…
... />
3) In the lower 2/3 lines of the screen I ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... than to check some processor lines with a scope.
The ... a scope, check the data lines in the Z80:
lower voltage span. You then have ...basin & spinWhen a basic program is loaded into Basin from .tzx does it display the real basic underneath or what the basic has been made to look like by the sof…
... . If you bring the lines to the lower screen then the hidden ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... circuit is to supply the lower 16K of RAM with three ... , black paper with faint vertival lines) and the tr4 was blown ...2007, and still no NIC and browser for the Speccy?I've started to read all the w.o.s. threads, starting by the ones that came up with the search function, using the keywords of the topics that intere…
... know). It's only 377 lines, so shouldn't be too ... ; cparse
IF 2DUP >LOWER tags SEARCH-WORDLIST IF EXECUTE ... ?DUP WHILE SPAD OVER >LOWER
S" content-length:" hfield ...Issue two picture qualityDoes anyone know if issue two and earlier spectrums have worse picture quality (in general, beside colours) compared to issue 3 and later? I mean on…
... video is at a much lower frequency than UHF channel 36 ... composite signal.
Wavey lines of distortion, that change in ...
