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IX register woes - or is SPIN buggy?Or am I missing something? I'm trying to use the IX reg to acess a table containing an x and y coord. My code below just doesnt seem to work proper…
... pointed out, if those are pixel coordinates, you should be subtracting ... Spectrum Basic when you execute PLOT.
But notice when ... -
Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…
... the point at which the pixel address is calculated, which will ... above listing, it doesn't plot the points in the same ... shown above plots in straight pixel columns from left to right ... -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... is faster than doing a PLOT and a DRAW. When it ... a CIRCLE with radius 1 pixel?
[IMG]http://i1136.photobucket ... -
Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... . Calling the ROM routine to plot a pixel? WTFingF?
More ... )
(1) Read 8-pixel values from cell row
Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... you using ROM routines to plot a pixel to the screen though ...generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
... wrote back in 2005, to plot all points on the Spectrum ... if each card was a pixel and you had 49,152 ... - but what happens once that pixel/card is removed from the ...generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
... followed by a call to PLOT -- the number 0-49151 can ... to a display address and pixel position (within a byte) directly ...generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
... followed by a call to PLOT -- the number 0-49151 can ... to a display address and pixel position (within a byte) directly ...generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
... coming across my old "random plot screen erase" and "random attribute ... entering those coordinates where the pixel is set, setting all the ...generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
No one's doing it the way I want to do it, so I uploaded this version:
[URL="https://docs.google.com/file/d/0B6XhJJ33xpOWb1EzVTVJWm5TWjg/edit?usp=sharing"]https://docs.google.com/file/d/0B6XhJJ33xpOWb1EzVTVJWm5TWjg/edit?usp=sharing[/URL] You can put ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... /> 1050 RETURN
1100 REM Plot x,y
1105 REM ... : REM X pos on line (pixel number, 1=MSB)
1150 ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
...
; THE 'PLOT' COMMAND ROUTINE
org 0x22dc ...
plot:
call coords_to_bc ; ... ld (hl), a ; write pixel byte
jp po_attr ; ... fce ; exit calculator
jr plot ; immediate jump
SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…
... 've been drawing them one pixel at a time, and testing ... each pixel for things like INVERSE, clipping ... the number of tests per pixel to practically zero.
PLOT x1,y1: DRAW TO x2 ...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... written in basic with the plot routines from David Webb's ... /> x0 = scaled x coordinate of pixel (scaled to lie in the ... /> }
color = palette[iteration]
plot(Px, Py, color)
}
plot routine can be encouraged to ...NOW look at what SpecBAS can do![img]https://sites.google.com/site/pauldunn/specbas_32.png[/img] Here's the code: [code] 10 WINDOW NEW w,0,0,SCRw,SCRh BPP 32 20 FOR f=1 TO 512 30 …
... TRANSPARENT parameter, and enable per-pixel alpha-blending with the ALPHA ... ,10 with 32bits per pixel with per-pixel alpha channel enabled. When ... all the options working and PLOT, DRAW, CIRCLE, ELLIPSE, CURVE all ...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... print character routine and the plot routine. This is responsible for ... to draw and plot in full colour, every pixel having its own ... ink colour using standard sinclair basic plot ... Hobbit, which uses the ROM plot routine, and it works ...Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
... screencoordinates like PRINT AT and PLOT in the same uppercorner.
Another trick with PLOT/DRAW I used is to ... a line a moving ball (pixel) was shown on the screen ...Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…
... constant, because it's a pixel set routine and the rest ... ]
;DE=Y.X
PLOT PUSH HL,BC:LD H ... optimized.
to use plot some data must be prepared ...So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…
... When you want to plot your pixel, you use the upper ... fraction less than one pixel each step. You could ... (1/256th of a pixel movement); rounded down, it ... , 1/256th of a pixel movement) - the subtraction carries ... immediately moves a whole pixel. It just looks a ...So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…
... ;772794]When you want to plot your pixel, you use the upper ...Drawing a dotted line...Hi Folks, I cannot be the first person to want this (?) so here goes! Does anyone have a MC routine that does the same as the BASIC DRAW command bu…
... SET, then RESet every other pixel in the line as its ... /> Calculate next pixel address
over 0
plot x,y
Calculate next pixel address
plot x,y
over ... 1
plot x,y
over 0 ...Drawing a dotted line...Hi Folks, I cannot be the first person to want this (?) so here goes! Does anyone have a MC routine that does the same as the BASIC DRAW command bu…
... not depend on the start pixel position of the line, but ... easily added to the existing PLOT routine?Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... />
This BASIC routine can "PLOT" (using POKE) to any point ... " to "11111111". 'bit' is the pixel position within the addressed byte ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... In terms of calculating the pixel address for a character square ... ;
; Screen address of top pixel row of character square at ... to the top
; pixel row of the character square ... t be calculating a new plot address for each point ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... a given coordinates of a pixel, not character. For character ... t be calculating a new plot address for each point but ... does calculate the pixel address for every pixel plotted in a DRAW ... have speeded both character and pixel routines, given the way they ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... , does calculate the pixel address for every pixel plotted in a DRAW ... have speeded both character and pixel routines, given the way they ... is that the functions for PLOT CIRCLE and DRAW will speed ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... routine to plot a colored 4x4 big pixel on screen ... />
[CODE]; -----------------------------------------------------------------------------
; Plot 4x4 colored pixel on screen
;
; D = pixel line (16-184, must be ...Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …
... to do my homework and plot a few functions on the ... colour code and no other pixel data. That colour remains in ... that works on a 6 pixel boundary, but there's no ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... routine to plot a colored 4x4 big pixel on screen ... />
[CODE]; -----------------------------------------------------------------------------
; Plot 4x4 colored pixel on screen
;
; D = pixel line (16-188, must be ...
