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Back To School (q. on loading screen)I never thought about this until just a few moments ago. Any particular reason for the blue border around the loading screen? [img]http://www.world…
... would just leave isolated bytes (or words (double bytes)) that couldn't ... give sixteen rows of thirty-two bytes which you could use for ... -
Test program for 128k machinesThere is a Test Program for 16/48k machines: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0008884&loadpics=3[/url] Is there a similar progr…
... that only the first 64 bytes of the ROM are ... flag means that the top two bytes will always be the same ... is at $004A - ten bytes past the artificial cutoff point ... /> LD BC,$4000 ; count of bytes
LD DE,$0000 ; set ... -
+3 dead(!)Hi, When I turn on my +3 I see only white and black strips (vertical) on screen any idea on how to fix it? Thank you in advance Chris [IMG]http:…
... />
This will push 2 bytes on the stack (wherever SP ... .
Which will push another two bytes in the stack.
bytes containing the value 255 (FFh ... -
PitPatI am coding the digital version of PIT-PAT [IMG]http://www.berg-en-dal.be/images/thumb/pitpat_spelen_2_kleur.jpg[/IMG] In fact it is golf on a tabl…
... like this:
2 bytes: startposition of ball
2 ... bytes: position of hole.
2 bytes: PLOT position of ... a value 0, followed by two a two bytes position. Everything starts as ... to end at app. 850 bytes with 18 levels.
This ... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... very straightforward. There are always two byte fetches to draw 8 ... as the pixel area (6144 bytes).
3) In hi ... />
4) And the same two display mode that was later ... missed by TImex. Use the two bytes fetched to specify four colours ... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... ULA is timed to make two byte fetches prior to ... The ULA gets its two display file bytes by presenting the row ... and then reading bytes from two different column addresses. Ie- two bytes are read ... ram into two 8k pieces. And fetch the attr/pixel bytes from ... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... ULA is timed to make two byte fetches prior to ... The ULA gets its two display file bytes by presenting the row ... and then reading bytes from two different column addresses. Ie- two bytes are read ... ram into two 8k pieces. And fetch the attr/pixel bytes from ... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... the limitations of having two colours per cell?
I've already mentioned two ways to do it in ... as it is fetches two bytes to draw each 8 ... you superimpose those two bytes you get two bits per pixel ... 8 pixels when you have two bytes to describe them?
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... the attribute byte to describe two of those colours (palettised if ... like) and have the other two colours as common settings over ... separately between a high-res two-colour or low-res four ... the ULA can only read two bytes per 8 pixels then you ...Sprites...What is fastest way for drawing masked sprites at any screen position without using preshifted data ? I want to use it for isometric view game... li…
... of 8 sets of 512 bytes, aligned on a high-byte ... 's shifted two byte value (the second being 256 bytes up from ... sprite data?
I have two bytes of sprite data.
1 ...Sprites...What is fastest way for drawing masked sprites at any screen position without using preshifted data ? I want to use it for isometric view game... li…
... sprite data?
I have two bytes of sprite data.
1 ... " with each of the 8 bytes making up the char labelled ...How do I know where my C compiler is putting my variable?Let me show you my code. I am writing a Z80 emulator (z80.c) which sets up a bit of shared memory for communication with another process. Well, I got…
... 've only got to have two bytes and a word, totalling 4 ... bytes, and the minimum segment size ...Games not compatible with real grey +2There are many threads about Spectrum+3/2A incompatibility issues but what about grey +2? I've found that games like Marauder and Skate Crazy don't w…
... contended area, you will get two contended events for each instruction ... couldn't properly deal with two contention events close together if ... so only depend on the two bytes at the end of the ...Games not compatible with real grey +2There are many threads about Spectrum+3/2A incompatibility issues but what about grey +2? I've found that games like Marauder and Skate Crazy don't w…
... so only depend on the two bytes at the end of the ...Spectrum machine language filesHopefully this will get moderated to the correct forum, if I'm in the wrong place.. I've failed to get my old 48K Spectrum microdrive files, via the…
... line 10, then the first two bytes should be 00 and 0A ...Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…
... (4 cycles to fetch) to two bytes (8 cycles to fetch). BIT ...Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... spend the best part of two afternoons trying to write a ... was using 2 arrays with two bytes per tile rather than one ...Feelin' kinda proud of myselfOkay, it has bugs. But I kludged it together about 10 mins after getting the sprite thing to actually work. [url]http://britlion.googlepages.com/Spr…
... big speed improvement. And saved two bytes of storage ;)
So ...Feelin' kinda proud of myselfOkay, it has bugs. But I kludged it together about 10 mins after getting the sprite thing to actually work. [url]http://britlion.googlepages.com/Spr…
... big speed improvement. And saved two bytes of storage ;)
So ...Shogun[URL]http://www.flickr.com/photos/jondresner/3502560230/[/URL] Couldn't find much more info, mostly you get another SHOGUN-game. I have it at h…
... !!!!!!
(well 1023 now, but two bytes are needed to return to ...A tidy loader for minigamesThe minigame competition doesn't permit the use of separate loaders like [code]10 LOAD "": RAND USR 32768[/code] The loader must be included in the b…
I've just shaved off two more bytes.
Enter the numeric ... =23754.5[/b], the six bytes stored in memory will be ... />
That's four more bytes that don't do any ... the registers yet). The last two bytes are yours, to use as ...Arrays in asm ?Just following the idea to make the menu entirely in asm, how can i handle arrays in asm to store the each game loader to be loaded ? thx in advance
... *4 + LOOKUPTABLE, with the first two bytes point to the location of ... the name, and the second two point to the location of ...Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…
... fast algorithms is that the two bytes can be retrieved together, while ...Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…
... sprites and masks - nope. For two bytes wide, as a rule. Though ...LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... that [b]push[/b] writes two bytes more quickly than [b]ldi ...Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... simpler:
8 bytes are SINCLAIR
1 byte ... byte checksum (all the previous bytes added together).
... , but without last two bytes:
8 bytes of name
... extension
2 bytes START address
2 bytes LENGTH
1 ...Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... comes with AYMaker. It is two bytes indeed, their values should be ...Seeking alternatives to DATA statementsAnyone know of any memory saving alternatives to storing a list of numbers, other than using DATA statements or poking data into addresses?... Im ti…
... vast then Ill be making two copies of the data before ... is stored in strings of two bytes, just like HEX, perhaps stored ... counters to read the next two chr$}
Let B ... />
- Notice that whether the two values are added or subtracted ...Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... on for six cycles for two bytes. That's an equal hit ... course you need to do two LDIs for each PUSH.
Is this a bug in BASin?Hi Folks, I seem to be getting a lot of issues when trying to use functions with BASin. For example, the following: [CODE]100 DEF FN a(x,y,p$)=COD…
... support, a char is now two bytes, with no compiler directive you ...
