-
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... code size. So in math48, sin is computed with a series ... but cos is computed as sin(pi/2-x). pi also ... =tau is used is in sin where the argument is kept ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... six significant figures and what sin(3.141) is to seven ... code size. So in math48, sin is computed with a series ... but cos is computed as sin(pi/2-x). pi also ... tau is used is in sin where the argument is kept ... you could tell us what sin(6.28) returns using Math48 ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... you could tell us what sin(6.28) returns using Math48 ... -
Tau Day<br>By popular demand (well, demand of one, which is highly popular in the sorts of things I do :D ), here is a small celebration of tau day, June 28…
In the C program I changed "sin(6.28)" to "sin(strtod("6.28", NULL))" to get a better answer. It seems the compilers do a worse job of converting the ascii float string to float than the z80 library does :P -
Tau Day<br>By popular demand (well, demand of one, which is highly popular in the sorts of things I do :D ), here is a small celebration of tau day, June 28…
...
The result for "sin(tau)" = "0.0209008..." on the ... 2pi (um, tau) which means "sin(tau)" should be less than ... truncated value of tau computed, "sin(tau)" shouldn't show any ... -
Tau Day<br>By popular demand (well, demand of one, which is highly popular in the sorts of things I do :D ), here is a small celebration of tau day, June 28…
... br />
Google gives me sin 6.28 = -0.00318530179. Then ... to 6.28318530179. It calculates sin 6.28318530179 as -5.3895868e ... course relies upon an accurate sin function and precision of the ... point type used for input, sin calculations, and output!
< ... -
Tau Day<br>By popular demand (well, demand of one, which is highly popular in the sorts of things I do :D ), here is a small celebration of tau day, June 28…
... program I changed "sin(6.28)" to "sin(strtod("6.28", NULL ... -
Your latest gaming purchase.Okay, so we've got an, "I am currently playing......" thread, but what I wanna know is what you've just gone and bought y'self. If you're like me, y…
... : Also completely forgot I ordered Sin and Punishment for the Wii ... -
SpecBAS 0.844 releasedHi all - it's been a while... Having some unexpected extra time off work, I've been able to get some work done on SpecBAS and it's now a bit more …
... LET m=mSECS: LET sa=SIN(pozx): LET ca=COS(pozx ... ): LET sb=SIN(pozy): LET cb=COS(pozy ... -
maths help 'JSW'JET SET WILLY uses a lookup table to play the opening tune (Moonlight Sonata) this is the table [code] 34299 DEFB 81,60,51,81,60,51,81,60,51,81,…
thanks zoep
that makes better sense as to why the values dropped when the notes rose???
anyway the lookup table is done for moonlight sonata (sounds good) now the tricky bit.....the game.
:) -
DEFFNder: a small library of BASIC functions written in Z80I've published a small library of 15 Sinclair BASIC functions written in Z80. I wrote it last year for a project of mine. Some of them are generic, s…
... , the usage example of both lookup functions was wrong:
Mirror tableCan anyone help with a byte mirror table? e.g. so you can look up a byte of a left-facing sprite and return the correct right-facing value. There …
... appear at the end with lookup tables and excellent coding by ...Windows 10 Anyone Got it YetSome of my collegues have been installing or updating their OS to Windows 10 and have been speaking very favorably about it,except the lack of driver…
... Groove which is ugly as sin and has far worse sound ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... this msge. But the longer LOOKUP routine of 2.2 is ...Vintage Computer Caption Composo, if you anything like me and love vintage computers you won't have failed to miss the many images of vintage computers and their users from an era…
... ) == Rand(Y) ) Then LET U = sin( cos(B));
>Error ...Vintage Computer Caption Composo, if you anything like me and love vintage computers you won't have failed to miss the many images of vintage computers and their users from an era…
[quote="Scottie_uk;840364"]
"> If ( cos(B) == Rand(Y) ) Then LET U = sin( cos(B));
>Error: Illegal expression (0,1)"
[/quote]
I like this!Vintage Computer Caption Composo, if you anything like me and love vintage computers you won't have failed to miss the many images of vintage computers and their users from an era…
... ) == Rand(Y) ) Then LET U = sin( cos(B));
>Error ... .
Is that a sin-tax error? Ho ho ho ...Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
... ... here is some fixed point sin, cos, vector products:
sin and cos but it only ...Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
... do quick multiplication. It uses lookup tables to get quick access ...Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
... half (or quarter) of a SIN table using a range of ...Fixed point math lib?Is there a liberally licensed fixed point math lib for z80 somewhere? When searching, I expected to find a bunch of GPL'd ones and perhaps one or two…
... accurate so we had a lookup table of values then multiplied ... (1024/b) bit was a lookup and then used the multiplication ...Oscar Pistorius found guilty of murderLooks like his charge of manslaughter has been overturned and he's now been found guilty of murder. Surprised he only got manslaughter first time rou…
yeah Im scratching my head as to how that was racist, it was anti-racist if anything.
FOAD:Iron you get 15 yrs in the WoS sin-bin! (reduced to 15 minutes when your lawyer appeals)Your personal game of the year?2015 is almost over (good riddance!), so what is your favourite game released in 2015, on any format? For me it's [b]Batman: Arkham Knight[/b], wh…
... 2 Scholar of the First Sin: overshadowed by Blood borne but ...New Game: AmnesiaHello! First of all, sorry for my English. I have developed my first game. It is called "Amnesia", and I have used the Freescape engine "3D Con…
... celda, en un lugar indeterminado, sin saber siquiera quién eres ...I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... - Most recently Persona 2 - Innocent Sin on the PS Vita. (Had ...Spectrum Screen RAM layoutHi there The spectrum screen layout is rather odd. It seems to be arranged into 3 256 byte groups. If I have an x (horizontal) coordinate (from…
Personally, I just use a lookup table to the start of each scanline - wastes some memory, but "slightly" faster..
