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ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... // for occluding sprites, clear pixel buffer before draw
#define SP1_TYPE_2BYTE ... , sp1_UpdateNow() will clear the pixel buffer before the sprite character is ... -
When do you optimise?I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that?
... each frame? Will a back-buffer be required? Try and estimate ... for sprites, background gfx, back-buffer (if used).
Graphics ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... SP1 will clear the pixel buffer before this sprite is drawn ... already in the pixel buffer. The pixel buffer's initial contents are ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... in the 8-byte pixel buffer. By using an occluding sprite ... does not clear the pixel buffer before it is drawn, we ... another character in the pixel buffer. Arrange for two same-size ... -
Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
... that by using a back-buffer to draw the background and ... -
Speccy 128k Double Buffering.If I understand this right, you display either of the screens, and draw to the one that is not being displayed. Am i right in thinking that the Non …
... where I have a back buffer in the uncontended memory and ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... adding byte- and word-circular buffer. To use, you must link ... -
Speccy 128k Double Buffering.If I understand this right, you display either of the screens, and draw to the one that is not being displayed. Am i right in thinking that the Non …
... screen instead of a memory buffer include, as MetalBrain suggested, the ... it takes to copy the buffer. If you have a fairly ... to draw it to the buffer, you then need to copy ... -
Speccy 128k Double Buffering.If I understand this right, you display either of the screens, and draw to the one that is not being displayed. Am i right in thinking that the Non …
... /> Draw the screen to a buffer area. Copy it to the ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... /> ; d4ff - d4ff SP1.LIB attribute buffer
; d4f7 - d4fe SP1.LIB ... pixel buffer
; d4ee - d4f6 SP1.LIB ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... queue. Byte- and word-circular buffer will be added in time ... -
Background image with SP1 and Z88DKWhat is the prefered way to place an entire (or very large) image in the background when using SP1? Should I convert it to a long (32*24=768 ) list o…
... to a full-size back buffer to store background. Another is ... option of using a back buffer to supply background instead of ... . Doing things with the back buffer will require more memory but ... -
Background image with SP1 and Z88DKWhat is the prefered way to place an entire (or very large) image in the background when using SP1? Should I convert it to a long (32*24=768 ) list o…
... to add the optional back buffer thing since it's fairly ... graphics from the back buffer". The back buffer (screen$) will need to ... 0 will use the back buffer screen$ for graphics. If you ... to indicate where the back buffer is.
Colour info ... -
Loading schemes18 years ago I hated loading schemes like Alcatraz and Speedlock because they were a b*tch to copy and became unreliable when the tape got older. Now…
... be stored in the printer buffer (23296) and has to be ... -
Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... load allophones into the uspeech buffer. Speech is voiced while the ... reserved for variables and a buffer whose size you can determine ... -
Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... load allophones into the uspeech buffer. Speech is voiced while the ... reserved for variables and a buffer whose size you can determine ... -
Extended Microdrive FormatterHello all, After a few months on a steep learning curve, some heavy duty reading and plenty of trial and error I?ve written an extended microdrive f…
... caveats first :-
1. Buffer at $4000
In an ... use the screen as a buffer. Works well on an emulator ... -
Extended Microdrive FormatterHello all, After a few months on a steep learning curve, some heavy duty reading and plenty of trial and error I?ve written an extended microdrive f…
Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... 8 has a "linear screen buffer" that is 6144 bytes long ... fact a full size back buffer being used.
One ... entire screen in a back buffer, individual character cells are completely ... drawn in an 8-byte buffer and the final version of ...Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... 8 has a "linear screen buffer" that is 6144 bytes long ... fact a full size back buffer being used.
One ... entire screen in a back buffer, individual character cells are completely ... [/QUOTE]
The character buffer cell idea is excellent, and ...Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... are drawn into the buffer simply dump that buffer onto the screen ... memory so make sure the buffer, graphics & graphic routines ... good for drawing into a buffer it has problems when transferring ... the buffer to the screen in ...Pimp my code...Erm, this is just the result of a mental exercise - I wanted to repeatedly display a UDG but decided against using a ROM routine and UDGs! Any sugges…
... />
:-)
LDIR (and LDI) is fast for copying bytes ... , but not fast. A single "LDI" step takes 16 cycles whereas ... : INC HL" takes 13 cycles. LDI does supply a byte counter ... per byte and an unrolled LDI takes between 16 (totally unrolled ...Bipboi Beta 2007.10Hello, I am nearing the end of the gameplay to Bipboi. I have made changes to the gameplay and would really like your opinions (Is it too hard etc)…
... /> are you using a offscreen buffer like mentioned in previous post ...CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…
I compiled this list of ones that I had come across for css. However they are more an indication of last-minute changes than any poor standards. The book remains one of the best manuals ever.
The ZX81 manual had a minor error in the RND explanation ...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…
... you to alternate what screen buffer you were updating and just ...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…
... you to alternate what screen buffer you were updating and just ...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…
... immediately followed by the printer buffer and the system variables in ...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…
... your display in a second buffer and copy it over? What ...