-
Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... consider the detail given for CIRCLE and DRAW ARC).
negative
INC A ;change so ... ,$FE ;-2 as dx is negative
INC A ;change so ... -
Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…
... />
;Bresenhams circle algorithm calculates the locations of ... the 8 octants of the circle.
call circle
ret
;******Circle ******
circle:
ld ... -
Can this guy give me negative feedback?I requested the total from the seller (to send me an interface from the U.K.) and the total from him was 10GBP for the interface and 10GBP for s&h. I…
... /> Can this person give me negative feedback or do something against ... -
Singularity (a great first person shooter)I thought I'd post this as I've just played a very good modern game that for some reason most people seem not to have heard of, so maybe some of you …
... cursor either gets a semi-circle of colour around it (to ... 've listed a load of negative points against a few positives ... -
CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…
... 'd like to draw a circle x,y,r using the ... RET.
I got a circle on the screen but after ... -
Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…
... pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge ... been using Bresenham's Midpoint Circle algorithm (copied from the web ... -
CIRCLE Help. Please.Hello. I have been reading the Spectrum Basic programming manual. Chapter 10 - Mathematical Functions - p52 - 53 i am trying to understand circles…
... round the circumference of the circle.
So the manual starts ... /> so they walk round the circle in a right to left ... the 4 points on the circle at 0, pi/2, pi ... -
Voltage SchmoltageOk then. Don't flame for wanting to use a C64 tape deck for this - it was the only one I have to hand which may be cannibalised for the purpose. So …
... Marcelo's diagram. The tiny circle labeled 5.7V? Connect a ... . The negative lead of this cap goes to the tiny circle labeled ... -
Prince Harry and the word "Paki"Prince Harry is in trouble (yeah, right) for using the word "Paki" to describe a Pakistana colleague, according to: [URL]http://news.bbc.co.uk/1/hi/…
... 't have a large social circle, so it's very possible ... word to loose it's negative connotations then that would be ... -
Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …
... .5"[/CODE]
Some negative exponentiations also gives "Invalid Argument ... to DRAW & CIRCLE.
DRAW & CIRCLE uses Bresenham's ... and are MUCH faster (specially CIRCLE).
Anyway: Unused rutines ... -
can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
... the same way as the circle routine. In this case, however ... BC registers: - 1 (FFh) for negative, +1(01h) for positive. The ... -
i am currently listening to........as i couldnt seem to find the old one, i didnt look that hard :P ive started a new one right after somebody asked me for some slayer ive rediscovere…
... /> Blag Flag: Six Pack.
Negative Trend: How ya feelin'?
Abrasive Wheels: Vicious Circle.
Flipper: Lowrider.
G ... -
Job Lot of over 160 Items ZX Spectrum[url]http://www.ebay.co.uk/itm/Job-Lot-over-160-Items-ZX-Spectrum-C64-PS1-PS2-PS3-PSP-Xbox-Dreamcast-/161097186089[/url] ZX Spectrum games ATV Si…
... to come to responding to negative feedback
[/B]
all ... feedback that has been left negative has been dealt with in ... .. it will go in a circle like many other things.
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…
... br /> call coords_to_bc ; accept negative values as offset
... ROM1
; THE 'CIRCLE' COMMAND ROUTINE
org 0x2320 ...
circle:
rst get_char ; ... call circle_coords ; handle possible negative offset
ld (hl ...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…
... 't use 360?. Divide your circle up into a useful number ... because of the effect of negative numbers, it's best to ... out which quadrant of the circle you're in (by comparing ...Super Sprint 128k Enhanced EditionSuper Sprint 128k Enhanced Edition is now online to watch. I have also written a review within the description box on YouTube. https://youtu.be/h…
... , game setup, and the winners circle. Must say when I saw ... afraid, sorry to be a negative critic.Physics threadProbs best to not confuse Physics with "Been to the Cinema recently"? Physic away! I'm only good at maths though, sorry.
... have 360 degrees in a circle 60 seconds in a minute ... . They also didn't like negative numbers, which was likely Chinese ...spectrum48k power supply?Hello, I live in the U.S. and I need to get a power adapter for the spectrum 48k comparable to the original. I needed to know all the specifications…
... ), I think it is of negative center polarity, the watts??, any ...Stop me from blowing up my original Spectrum 128!I have a Spectrum 128 (not the +2), and I want to play some of those old classic games again. The trouble is this. I still have the original Power Su…
... the wrong way round (positive, negative), the Speccy will blow.
negative centre?
ie. +o ... )- positive centre, negative outer
or -o)+ negative centre, positive outer ...The Your Sinclair Rock'n'Roll Years TV ShowComing soon... by the end of 2003... Way back in 1997, I put together the Your Sinclair Rock'n'Roll Years. The idea was a simple one, inspired by th…
... 's time to come full circle and do what the BBC ...URGENT programming question !I've gotta draw a line from machine code using the standard routine at 24B7, which expects the delta-X and delta-Y values on the BASIC stack. I put t…
... know how to put a negative BC on the BASIC stack ...Amigo - Dizzy PetitionHi Amigo, Have been reading about your petition with some interest, particularly as I have some connection to it... I used to work for Codemasters…
... don't want to be negative about this whole petition thing ...Elite - %@$(*!$!*(%! dockingAllright, all you die-hard Elite veterans out there, a neophyte needs your help ! I know the age-old 'trick' for docking is to run up near the stati…
... .... However, instead of the welcoming circle effect, the door disappears and ...zx elite missionsHi all, I am big fan of original elite and love zx version too much because it was forst elite i played. I actualy own ZX 128k and c64 original pack…
... in 128k version where caution circle indicator have small graphics error ...colouring inexample: 10 CIRCLE 45,30,15 wot do i type after it to colour it in red?
example: 10 CIRCLE 45,30,15
wot do i type after it to colour it in red?ANN: Tipshop updated Monday, 14 June 2004Monday 14 June 2004 Lots of good stuff, and a plea for help! * I've been daft enough to attempt to find aliases for as many of the Load 'n' Run / S…
... and a map for Magic Circle, The.
Thanks to Martijn ...Does anyone remember this? (**Not Spectrum Related**)When I was very young, I was given a present of a word game. It consisted of a dark blue cylinder and 16 rings with letters printed on them. You had …
... internet searches have come up negative. If anyone can remember what ...Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
... ; if moving left, result is negative
JR NZ,left ; so ... jump if xmove is negative
; MOVE RIGHT
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... ; if moving left, result is negative
JR NZ,left ; so ... jump if xmove is negative
; MOVE RIGHT
