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Checksum routine wantedI wish to make a program that verify integrity of a Multiface 1 ROM. It is possible to compare each byte of the ROM against a binary dump, but this i…
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Thus, I need a routine that calculates a unique value ... -
How to benchmark a single routine?I've written a routine. It works. But it was never meant to be the final version. So I rewrote it. The new routine works too. Yay. :) However, I'd …
I've written a routine. It works. But it was ... I rewrote it. The new routine works too. Yay. :)
Divide or 1bis.?Hi, I'm new to these forums, having just resurrected my old Spectrum + after 25 years in my parents loft, and also having spent far too much time pic…
... to other additions, notably some sort of mass storage. As such ... and do some simple software/routine development. I have got back ...Another difficult music video to I.D.It was released about a year ago (maybe two). The singer was a tall black woman in tight leather. There were two opposing phalanxes of dancers on a l…
... some sort of dancing combat theme. The singer's dance routine involved ...Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... 'm trying to write a routine that plots 3 pixels to ... /> call $22E5 ;call ROM plot routine
pop bc
inc ...Sampling routineLooking for a simple yet crude sampling routine that I can use on a forthcoming game. I've tried most of the ones from the archive and find them uns…
... a simple yet crude sampling routine that I can use on ... spare and just need a routine that goes "YEAH!"
Redefine keys routineHow would I go about making a memory efficient redefine keys routine? I only want to define up, down, left and right and reserve key 'H' for pause.…
... a memory efficient redefine keys routine?
I only want ... .
The key scan routine in the game goes something ...Routine for Currah speechI'm currently writing a routine for the Currah that will provide speech during a game. A timer is set to initiate the speech every 50 cycles of the …
I'm currently writing a routine for the Currah that will ...Asm routine for AY playback?Hi, is possible to create and "name" an asm routine for playing some ay data? If yes, how? Example: Ok , I've finished a sound tracker song, now I n…
... create and "name" an asm routine for playing some ay data ... with or without the play routine? How does it work?
Is possible to call the routine and make it play some ...What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)
No need for ...Simple memory transfer routineI'm looking for a simple memory transfer routine that shifts 32 bytes of data from the address HL is set to 55143, I have tried using LDIR, but cant …
... for a simple memory transfer routine that shifts 32 bytes of ...Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…
... go through the whole initialization routine, halting with the first 1 ... 48K, I mean) suspecting some sort of excessive load on bit ...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…
... : af, de, hl
; sort the multiplicands
ld ... code at the top to sort higher and lower multiplicands costs ... is, jumps to the 8x8 routine.
The second tests ...SpecBAS 0.802 Released!Hi folks - It's that time again when I release the latest round of features and bugfixes to SpecBAS :) New for this version are ZONEs which act ver…
... to those who used that sort of thing. It's all ...
Optimised the line drawing routine, much faster now
Filled ...LM ram block transfer routineHello! I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine. Please, someone coul…
Hello!
I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine.
Please, someone could help me?Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
... : PRINT AT 0,0;"Block Routine"
160 GO SUB 200 ... STOP
180 REM Block Routine
190 REM x,y ... />
Anyone got a better routine?
Many thanks
Simple text scrolling routine...I'm having trouble writing a very simple text scroller, the idea is to use the ROM printer routine to print 32 characters each time the routine is ca…
... to use the ROM printer routine to print 32 characters each ... time the routine is called, updating the de ...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…
... minutes I wrote a short routine to calculate Soundex codes using ...+3DOS routine missing in the +3 manualThe other day I realised the details of the +3DOS DOS DELETE routine are missing in the [url="http://www.worldofspectrum.org/ZXSpectrum128+3Manual/ch…
... of the +3DOS DOS DELETE routine are missing in the [url ...Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …
... with the pixel address rom routine at 8874.
Going ... be holding 128 after the routine is run?
Toboim 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
im 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 onThe history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…
... disk systems (D80, MB02+), to sort of make it a "standard ... and optimized the FAT seek routine (which was hard work), made ...WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…
128k Paging a tile routine to a double bufferHi happy new year all :) Does anyone have an example of how to page a routine to the screen ie a tile routine? Thanks :)
Hi happy new year all :)
Does anyone have an example of how to page a routine to the screen ie a tile routine?
Thanks :)Variable sized tiles /tile routineHow would you do a variable sized tile routine where the tiles have position variables too? Thanks would be interested to learn :)
How would you do a variable sized tile routine where the tiles have position variables too?
Thanks would be interested to learn :)I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…
... how the PIXEL-ADD rom routine works.
My code ... , I'm assuming the rom routine at $22AA will convert the ...Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…
... trying to create an interrupt routine for playing AY music in ... />
I have a music routine in bank 6 that plays ...A sped up pixel-shift routine for 1-byte–wide spritesHere’s an optimized (for speed) real-time sprite shifting routine for sprites that are one byte wide. It uses no memory variables for storage of inte…
... speed) real-time sprite shifting routine for sprites that are one ... sets again.
(The routine is shared between two sprites ...Samurai Warrior - The Battles of Usagi Yojimbo. BUGFIX.While playing around I managed to put the game in a bugged state. When the game is in this state any enemy that's facing right while executing an att…
... some strange code during the routine that checks if an enemy ... .
So it's sort of two bugs baked into ...
