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Copying data between memory banks in USR0 modeI am experimenting with Funky Fungus to load the majority of its data (levels, screens, music etc.) into memory banks 1, 3, 4, 6 and (partly) 7 by sw…
... somewhere. You could use a routine to copy all the bytes ... into bank 0 with a short LDIR routine so the original version ... -
The Spectrum's spectrumappears to be missing a few things... specifically I'm wondering about pink and brown my hazy attempts to mix red and white are not proving very su…
... /> Yes it will. A short MC routine could initialize it and then ... -
ZX81 Character SetHello, hope I don't offend anyone with my request. I've put together a program on my Amstrad that redefines a condensed text and displays it appropri…
... thing needed is a short mc-routine that will display that block ... -
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. …
... , I came up with this short BASIC routine:
[code]
9991 ... -
shadow regs musingIn the process of optimising some assembler, it occurred to me how great it would have been if the Z80's shadow reg opcodes had been a bit more fully…
... that a fast response and short interrupt routine may only need the ... a longer more complex interrupt routine, the rest of the registers ... -
The Kaspersky Labs thing . Is this a hard issue or an easy one to ignore ?The UK regulators appears to have had something to say about about some government departments using the Kaspersky security software . And I have…
... ask because in a short Basic routine somebody posted elsewhere I saw ... -
binary mirroring in basicsame as last question, really. only this time i want to mirror an 8 bit decimal number
Generate them all and store them in an array, then use the array as a lookup is probably the "best" pure BASIC option, but a short ASM routine would really be the way to go for anything other than demonstrating the principle. -
What to write / programme?I've been trying to get back some motivation to write something in machine code for the Spectrum. I don't feel I am organised enough to write somethi…
... 't very much just a short ASM routine to fill the screen ... />
If you follow the routine you will see there are ... this is a stand alone routine that doesn't need any ... -
Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
... am attempting to write a routine which will allow a missile ... on a player. Basically the sort of thing you see in ... -
Delay routine requiredI'm putting together a short routine to play some Beep style music. I need to be able to pause between notes when required. These pauses are defined …
I'm putting together a short routine to play some Beep style ... milliseconds. I'm after a routine that will allow me to ... -
checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... this [thread=35728]Keys redefine routine and key check[/thread] thread ... was a bit trickier to sort out; I'll include it ... .
It's quite short, but rather slow. Parameters n ... bit manipulation, but the conversion routine does support that as well ... -
saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …
Here's a short routine to save part of a ... into other programs. It's sort of a slow version of ... -
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…
... why Jet Pac loads three short blocks after the main block ... with "1" is a LDIR routine that moves the previously loaded ... -
Troublesome routine, help needed!Having problems with this routine, it basically fires a rocket up the screen, but refuses to detect collisions. I'm using attribute blocks for detect…
Having problems with this routine, it basically fires a rocket ... tried allsorts to remedy this routine but nowt seems to work ... advance to anyone who can sort this annoyance out! :smile:
call print ;call the print routine
pop bc
djnz ... -
Soundex routineIn an idle 5 minutes I wrote a short routine to calculate Soundex codes using the algorithm described here: [url]http://en.wikipedia.org/wiki/Sounde…
... 5 minutes I wrote a short routine to calculate Soundex codes using ... -
Trying to Recall a Couple of SF Short Story TitlesWatching a trailer for "The Martian" recently ("Help is only 140 million miles away") brought to mind a couple of SF short stories with a similar sce…
... mind a couple of SF short stories with a similar scenario ... ) has to stay in some sort of little pressurised dome when ... environment (a desert of some sort IIRC), accompanied by a guardian ... -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... /> [code]
;Redefine Keys routine
;By Ast A. Moore ... /> call 8859 ;inside ROM routine BORDER ($2294)
call ...
;A crude debounce routine to prevent
;registering keys ... br /> ld b,50 ;a short pause
3$ halt ; ... -
Machine code routine neededHello! Please i'm looking for a short routine that can write the same value in a range of continous memory locations. For example, to write 255 val…
Hello!
Please i'm looking for a short routine that can write the same value in a range of continous memory locations.
For example, to write 255 value from location 40000 to 41000.
Many thanks in advance. -
Sort 2 byte words (x, y) on ypos, also question about swap (DE), (HL)Well that was a lot of debugging ;) But if you want a routine which takes an array of 16 byte words x, y and then sort them on y (ignoring x), I'm…
... But if you want a routine which takes an array of ... x, y and then sort them on y (ignoring ... />
Uses a heap sort since that doesn't use ... s not fast enough to sort each frame (since once ... // Main function to do heap sort
void heapSort(int arr ... -
How to speed up TZX loading (emu development)With many newer emulators there are options to do faster loading schemes, even for turbo-loader or protected loader blocks in TZX files. For example,…
... executed in quick succession. The routine would then scan forward to ... usually a short delay loop before the edge detection routine. This means ... create some sort of masked recognition thing for the whole routine. The ... -
PAW tests - help and discussion :)Hello my friends :) I have started to make some tests with PAW and I must say I'm very pleased and surprised at the great program. I will be posting…
... the start. I moved the routine to the response table and ... write SHOOT BALL to the routine take effect. thanks a lot ... ...[/QUOTE]
That's sort of it. But don't ... complete list of flags. The short answer I guess is start ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... "music playing" routine.
I used the same sort of compressed ... 95 is used for a short pause.
This gives ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... the look of using LPRINT - sort of neat. Is it possible ... Of All Proportion" article. A short routine would be needed to left ... -
checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
Here's the sort of thing of which I ... itself.
This little routine (plus the code to protect ... having an assembler, to incorporate short m/code routines into their ...
