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How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... /> I contend that trying to save the effort of becoming ... 't count in decimal, but in binary and ten isn' ... decimal? If expressed in hex it becomes much easier to ... different ideas on how to get started, so just ... will get the urge to go further and further).[/ ... -
How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... ;759793]I contend that trying to save the effort of becoming ... don't count in decimal, but in binary and ten isn't ... in decimal? If expressed in hex it becomes much easier to divine ... -
How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... miles and inches are to measurement what decimal is to machine code. They ... because it is shorter to write than binary, which you really want ... to use, without obliterating the visual ... -
How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... can use decimal. I don't personally like to, preferring to remain ... to me to work with weird decimal numbers, so disconnected from the binary ... screen memory to the shadow screen in decimal vs in ... br /> If you want to use decimal numbers everywhere then don' ... -
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 …
... .asm[/URL] (screen address to pixel x)
[URL ... />
Jonathan likes to deal in decimal, I know, but this ... is something you have to understand in binary ... . All these routines are easy to write ... -
Basic program malfunctionHello. Please does anyone know why this basic program 10 LET x=0 20 LET x=x+0.1 30 print x 40 if x<>1 then goto 20 50 STOP does not properly work o…
... done yet" and that corresponds to "IF ABS(x-1) > ... ]
It's not necessary to use ABS, as if the ... -
SkoolKit 4.4<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Hey, first SkoolKit release announcement since the…
To render a numeric value in ... a b (binary), c (character), d (decimal) or h (hexadecimal) prefix to the ... -
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…
... particular test the main contributor to runtime was printing the result ... the third decimal place or about the ninth or tenth binary digit ... the mantissa bits and adding to itself a version shifted right ... represented correctly all the way to the 40th mantissa bit ... -
ZX-Assembler version 0.8 (beta) releasedDear readers, yesterday I've published ZX-Assembler in its first version 0.8. It offers you some interesting features, even if I know there are …
... you are probably already planning to fix, but I will mention ... Current option to display all addresses and values in decimal or hexa ... , should also be applied when importing a binary ... file. Also there should be another option to switch ... -
ZX-Assembler version 0.8 (beta) releasedDear readers, yesterday I've published ZX-Assembler in its first version 0.8. It offers you some interesting features, even if I know there are …
... Current option to display all addresses and values in decimal or hexa ... , should also be applied when importing a binary ... file. Also there should be another option to switch ... set. But maybe this has to be checked again....
The ... -
ZX-Assembler version 0.8 (beta) releasedDear readers, yesterday I've published ZX-Assembler in its first version 0.8. It offers you some interesting features, even if I know there are …
... Current option to display all addresses and values in decimal or hexa ... , should also be applied when importing a binary ... file. Also there should be another option to switch ... "Inserts code from a binary or assembler file" should insert ... -
im looking for a basic routine that adds a numerical character to a stringim looking for a basic routine that adds a numerical character to a string. so a=1, "1", then a=0 "10", then a=1 "101......" and so on
... a simple routine to put a decimal->binary conversion into a string ... =INT (dec/2):
GO TO 20+NOT dec
21 ... -
IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... hex or decimal but you’re still then thinking in binary at ... some level. Before you try to understand the ... A0 together with /IORQ to detect access to this I/O port ... /> It therefore makes sense to try to decode [i]more than just ... -
Interesting VAL featureHi Folks, No doubt most people know this but it is new to me! The following code generates the answer of 10. [code]10 LET A$="X+X" 20 LET X…
... it used INPUT LINE to get the answers and ... then used VAL to check if they were ... take long for us to figure out that you ... you aren't just limited to the basic maths operators. You ... quick way to convert a string of binary digits to a decimal number.< ... -
Interesting VAL featureHi Folks, No doubt most people know this but it is new to me! The following code generates the answer of 10. [code]10 LET A$="X+X" 20 LET X…
... /> Now that is really useful - Binary to Decimal conversion in one easy step ... -
UDG generator doesn't work, why?Typing in the UDG generator from the manual I get integer out of range when I run it. I'm going nuts trying to figure out whats wrong. Can someone pl…
... you are putting in decimal values & not binary?[/quote]
Thanks ... miss the mags that used to be full of stuff you ... -
UDG generator doesn't work, why?Typing in the UDG generator from the manual I get integer out of range when I run it. I'm going nuts trying to figure out whats wrong. Can someone pl…
Or convert the binary to decimal yourself for practice :)
From left to right take the values:-
128 64 32 16 8 4 2 1
So, 00011000 is 32+16=48 -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
...
20 FOR x=16384 TO 23296 STEP s
30 ... /> Using the decimal number 170 instead of the binary 10101010 will save ...
20 FOR x=16384 TO 23296 STEP s
30 ... -
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... , although some concepts are easier to learn and understand in different ... tend to use a mix depending on the circumstances:
Binary ... by WOS standards ;-)
Decimal - User displayed values and constants ... -
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... than in decimal or a long binary string that is difficult to visually ... possible to convert bit patterns to decimal, write long binary strings like %0100010010000011(**) to formulate ... that into a calculator to convert to a decimal value in their code ... -
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... much closer related to the hardware itself, than decimal numbers.
... of representing binary. E.g. if you wanted to isolate one ... and 15
To me, the decimal representation makes some code ... more sense in hex (or binary) IMO.
For ... -
A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…
... value and then pass control to the next statement. If more ... but you'd need to be able to check individual bits in ... commands you'd have to use arithmetic to check the bits, which ... />
KEY_SCAN key codes: hex, decimal, binary
[code]
? hh dd ... -
Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... nibble you OR 0x30 it to get ascii.
...and ... /development/msx-development/super-fast-binary-decimal-routine"]has already implemented it ... -
Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... carrying over anything over 10 to the next column.[/quote]
BCD stores 2 decimal digits per byte. Mysterion is ... single decimal digit per byte. That will be slightly slower to ... and certainly faster than displaying binary.
BCD's ... -
Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... 888843"]BCD stores 2 decimal digits per byte. Mysterion is ... decimal digit per byte. That will be slightly slower to ... and certainly faster than displaying binary.[/quote]
Yep ... enormous numbers without having to worry about fitting everything ... -
Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... />
BCD stores 2 decimal digits per byte. Mysterion is ... single decimal digit per byte. That will be slightly slower to ... but a fair bit faster to display. Pretty minor amount ... and certainly faster than displaying binary.
[/quote]
Fast way to clear the screen ?So I was wondering fastest way to clear the screen. I've tried this and this works but is it better than CLS ? LD HL,16384 LD BC, 6144 Loop…
Probably boils down to programming. If you're used to BASIC then decimal addresses obviously become more familiar, whereas in z80, HEX or Binary becomes your preferred way of visualising.Fast way to clear the screen ?So I was wondering fastest way to clear the screen. I've tried this and this works but is it better than CLS ? LD HL,16384 LD BC, 6144 Loop…
... . If you're used to BASIC then decimal addresses obviously become more ... familiar, whereas in z80, HEX or Binary ...Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... msx-development/super-fast-binary-decimal-routine"]has already implemented ... converting a binary number to decimal by reading the binary number from ... left to right, ... doubling is of course decimal. So in the different ..."ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... likely to anyway) are:
- non-decimal number bases (binary ... and hexadecimal at least) and the ability to ... no longer has a decimal point, usually because there ... - PI is stored to 7 decimal places. Trig functions work ...
