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Floating point representationI'm planning on picking up the [url=http://matt.west.co.tt/category/spectrum/openzxrom/]OpenZXRom[/url] project from where I left off a few months ba…
... chip in)...
Normally, floating point numbers on the Spectrum are ... be represented in the standard floating-point notation with complete accuracy.
floating-point notation immediately on sight - then ... -
BASin floating point issue...Hi Folks, I have been very happy with BASin and found it to be an excellent tool. However, in the last few days a strange error has started to occu…
... that there has been "Invalid floating point operation". This is not from ... -
BASin floating point issue...Hi Folks, Reposting here as I think I put it in the wrong section before - sorry. I have been very happy with BASin and found it to be an excellent…
... that there has been "Invalid floating point operation". This is not from ... -
Floating Point Forth (CP Software)[IMG]http://i269.photobucket.com/albums/jj79/Hairyrecords/scan0011.jpg[/IMG] I don't see Floating Point Forth by CP Software in the archive. But I …
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I don't see Floating Point Forth by CP Software in ... published by CP Software as Floating Point Forth.
I noticed [URL ... -
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…
... a neat little floating point package for the z80 ... keeps the floating point operands in registers. The floating point format is ... set is the primary floating point accumulator and the main ... one. Genmath requires a floating point accumulator in memory and ... -
TIL: something about floating point numbersHere's something that had me scratching my head for a while until I figured out what was going on. In a BASIC program, floating point numbers are …
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In a BASIC program, floating point numbers are stored unsigned. (Who ... />
then the 5-byte floating point representation after the 14/0x0E ... -
Numeric arrays: floating point or integer?I've just started programming a game in Sinclair BASIC (see the thread 'UFO Defence Command' in game ideas, although I'm going to call it ZXCOM ;) ).…
... the array as integers or floating point numbers? I seem to recall ... -
BASin Release 6 available for DownloadHi all - It's another cut'n'paste from CSS :) I've been tapping away again, and seeing as a couple of people have recently seen BASin's latest bits…
... the ">" program cursor to point to the line that the ... will take you to the point that the program loaded, but ... /> Fixed the accuracy in certain floating-point operations (such as 0.5 ... -
Speed of variables vs. POKE/PEEKGreetings, I'm sure I could probably find this out after careful study of the 48K ROM disassembly, but I was wondering whether someone already knew …
... , and we don't need floating-point/large numbers, wouldn't it ... -
FP Calc QuestionWhen using the FP Calc (RST 28h) to perform a subtraction how do you find out what the sign of the result is? ie. +/-. For example if I stack two va…
... place the values on as floating point numbers?
Derek -
Print Int -65536Just came across an interesting bug in the ZX Spectrum Floating Point format from the Complete ROM Disassembly book. [code] PRINT INT -65536 [/code]…
... bug in the ZX Spectrum Floating Point format from the Complete ROM ... -
ANNOUNCE: BASin r14 is up. New SCREEN$ paintbox included.Hi all, Well, I can't sit on this any longer - so I've released it. Let's all get a good testing session going, eh? You can get the new BASin [url=…
... in the 5-byte -> Floating point conversion routine which caused all ... -
My emulator has a CPU bug, any ideas?.Hi all, I am writing a Speccy emulator in PureBASIC but have an odd bug. The spectrum interprets the odd numbers incorrectly whenever they are typed…
... problem with the integer or floating point conversion routines used by the ... -
ForthTrying to search for FORTH programs and FORTH articles within the forum is proving to be a complete nightmare!! If I search for FORTH in Infoseek I …
... programs were released which supported floating-point arithmetic!
I then ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... and 32 bit arithmetics and floating point),
- real time clock (if ... -
This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…
... host computer, not the Z80. Floating point routines, the calculator, tape routines ... -
SpecBAS 0.646 now available.Yay! Here's another round of bugfixes and additions to the Program. Not so much of the extract coding features, but more back-to-basics this time: […
... and FCHR$ for working with floating point values in strings.
Editor ... command - both for reading/writing floating point values (bytes in size) from ... -
Structure of numeric arraysHi all, I have saved from my spectrum a numeric array using 'SAVE "array" DATA a()'. I now have the resulting file on my PC and I am trying to get …
... stored as a 5 byte floating point number, but thats where I ... have tried to read about floating point numbers and binary fractions on ... -
problem with RND (or maybe INT)I'm using this statement: LET m=(INT (RND*sn)+k1)*k2-k1 to give a pointer m to a 2-byte segment of a string l$. Items k1 & k2 are integer constants…
... there's some problem with floating point evaluation. Any suggestions on how ... -
BASin bug?Every now n then I'm getting "invalid floating point operation" when trying to load up BASIC programs....it then locks up BASin But I can get r…
... 'm getting
"invalid floating point operation"
when trying ... -
How much space does a number take?Hi Folks, Could someone please remind me how much memory a number takes up in a BASIC listing. For example, if you had: [CODE]100 LET a=3000[/CODE…
... /> 5 bytes to store the floating point number
4 bytes to ... -
A new ZX spectrum cloneOver the past 12 months i have been developing a new spectrum clone as a hobby project to waste my spare time on. It is still not fully complete yet …
... with 48K display timings
Floating bus and contention emulation model ... to load
Implement a floating point co-processor usable as BASIC ... -
SpecBAS 0.754 Now available!Hi all - Due to overwhelming demand from half of my userbase (That's ASH-II to you lot), BEEP has been added! It's not just any old BEEP though - y…
... SPRITE ERASE
Fixed(?) a floating point error in sprite movement, with ... -
Unravelling the Spectrum Floating Point Number formatHi Guys, In my head I pretty much understand how the Spectrum's 5 byte FP number format works. The first byte is the signed exponent and the follow…
Hi Guys,
In my head I pretty much understand how the Spectrum's 5 byte FP number format works. The first byte is the signed exponent and the following four bytes are the signed mantissa where the MSB is the the +/- sign of the number which is ... -
Raising to the powerA curiosity of ZX Basic I found yesterday is that you can't do this: [code] 10 LET x=-3 20 LET y=x^2 [/code] While you can for example do LET y=-3^…
... 're raising to as a floating point number and not an integer ... -
What to do when INT doesn't work?Due to the limitations of the Spectrum's floating point number format, two slightly different large numbers, or two slightly different small fraction…
... limitations of the Spectrum's floating point number format, two slightly different ... -
Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... between. These functions sit underneath floating point libraries, general integer / long / char ... fast but not to the point where it takes a silly ... -
GEDit syntax highlighting for Boriel's ZX BasicHi! I just tailored this syntax highlighting code and would like to share with he community. Suggestions are always welcome, though the file works w…
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 …
... correctly before launching
Erroneous "Floating Point Error" crashes turned out to ...
