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TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …
... on ZX128k other than addresses 23672->23674. Basically I would ... to the 50 present in 23672.
Also, can anyone ... -
VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…
... by peeking at the address 23672.
Is this the ... />
VSYNCLP:
LD A,(23672)
CP L
JR ... -
New Functions for Sinclair BasicA total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structu…
A total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structure of Sinclair BASIC, the best place to store these functions is in line 0. This prevents the line being ... -
Programming MC : first stepsIsn't nice to collect all kinds of short routines to help making the first steps into MC for everyone who never touched MC? What I mean is mostly th…
...
start ld hl,(23672)
ld (seed),hl ; RANDOMIZE ... -
SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…
... so:
[code]
UNTIL [23672] = 3
[/code]
That ... break when the byte at 23672 = 3. Square brackets are used ... -
Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…
... 23674+256*PEEK 23673+PEEK 23672)/50: LET t2=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672)/50: RETURN [/CODE]
23672)/50: LET t2=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672)/50: RETURN [/CODE]
A little program to set the time...Hi Folks, OK, I have amended the program so you now have four routines/functions you can use in your own programs: TIME: GET - Reads the current va…
... 23674+256*PEEK 23673+PEEK 23672):
LET mm=(65536*PEEK ... 23674+256*PEEK 23673+PEEK 23672):
LET time=(hh+mm ...The short blocks loaded in Jet Pac(Hope this have not been previously discussed. If so, my apologies) Is there any reason why Jet Pac loads three short blocks after the main block? I…
... FRAMES address. The value at 23672 does not seem to be ...Canny use of the 'r' register?Seeing Sokurah's code in the [URL="http://www.worldofspectrum.org/forums/showthread.php?p=583188#post583188"]crunch sound thread[/URL] has made me th…
... better than eg LD A,(23672) (though much much faster by ...Speed tip - "e" notationHi Folks, Whilst reading my "new" Sinclair ZX Spectrum BASIC manual I came across "e" notation again. In MRT I have the following line which is use…
... "]23673[/COLOR]+PEEK [COLOR="red"]23672[/COLOR]):
LET m=([COLOR ... "]23673[/COLOR]+PEEK [COLOR="red"]23672[/COLOR]):
LET t=(h ...Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…
Venturespeak Helplooking at the code from ZX Computing, October, November & December 1986. How do I make the code do more then 3 letters say 5. and could it be made …
... A
60012 32785C LD (23672),A
60015 32795C LD ...Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…
Hi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker but, in the end - I just learned how to use Soundtracker anyway (Thanks to ZXF for those tutorials!).
Random Numbers, USR Return Values & Timing BASICI've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency ana…
I've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency analysis across ranges of 0.05 from 0 to 1 for 65535 values. (Values are all "INT (n*10000)" for printing.) ...Computer Haiku (converted from C64)[url=https://archive.org/details/Computer_Haiku_1983_CES]Here's the original C64/PET program - "Computer Haiku" by Commodore Educational Software, 19…
... thought it unnecessary to PEEK 23672 (the Spectrum's equivalent) and ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... following code:
POKE 23672,0 : RANDOMIZE USR 50000 : REM ... START-ADRES
PRINT PEEK 23672
The internal ...random numbersCan you write a piece of code that gets you a truly random number from the Spectrum, or is it only capable of generating a pseudo-random number (ie. …
... , you could use the addresses 23672, 23673 and 23674. The first ... so on. If you peek 23672, you get what could be ...Let a=val "1"I see some basic programs which use Let a=val "1" instead of let a=1 syntax. what is the difference between val "1" and 1? is it an effect of some …
... />
[code]
10 POKE 23672,0 : POKE 23673,0 : POKE ... F
50 PRINT PEEK 23672+256*PEEK 23673
[/code ...TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …
... on ZX128k other than addresses 23672->23674. Basically I would ... to the 50 present in 23672.
[/quote]
Tricky ...I need ASM for random numberI need to generate a random pair of coardinates in asm so that x=random no between 0 and 31, y=random no between 0 and 23. Any ideas on how to code …
... /> ORG 32768
LD HL, (23672)
LD (_RANDOM_SEED), HL ; Initialize ...New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
This is what I've compiled so far:
[quote]Resources
=========
* Make all caps
---------------
You can turn CAPS LOCK on or off using a simple poke to 23658:
POKE 23658,8: REM CAPS ON
...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. …
... =0
10 PRINT PEEK (23672)+256*PEEK (23673)
20 ... f
60 PRINT PEEK (23672)+256*PEEK (23673)
10 PRINT PEEK (23672)+256*PEEK (23673)
20 ... f
60 PRINT PEEK (23672)+256*PEEK (23673)
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. …
... wrote:
PRINT PEEK (23672)+256*PEEK (23673)
Def FN Tim=PEEK (23672)+256*PEEK (23673Cool 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. …
... :
Def FN Tim=PEEK (23672)+256*PEEK (23673
[/quote ... PRINT FN p(23672)
Replace 23672 with whatever address you ...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. …
Won't PAUSE 1: LET f=PEEK 23672+256*PEEK 23673 do the trick as PAUSE ends just after an interrupt?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. …
... :
Def FN Tim=PEEK (23672)+256*PEEK (23673
[/quote ... PRINT FN p(23672)
Replace 23672 with whatever address you ...
