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PentEvo/ZX Evolution PreviewCheck this -> [url]http://www.youtube.com/user/3ASOFT[/url] some Videos showing the PentEvo/ZXEvo ([url]http://www.nedopc.com/zxevo/zxevo.php[/url])…
... The DTV64 is basically a C64 in a joystick. While not ... is easy to install (just add batteries + connect composite/audio ... cables) ... basically a plug and play version of ... , as you can add serial ports, a keyboard and more modding ... -
AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…
Just to add, there was a thread here about creating a mod player for ... 's 8-bit volume table. A static volume table isn't ... . I did look into it a bit but foudn the spectrum ... -
Cis this a valid instruction? [code] A + B; [/code] If I assign 3 to A and 2 to B; and then "A + B;", then A should equal 5, and B equal 2. Correct?
so to add B onto A, I need to put this, am I right?
A = A + B; -
Cis this a valid instruction? [code] A + B; [/code] If I assign 3 to A and 2 to B; and then "A + B;", then A should equal 5, and B equal 2. Correct?
[QUOTE=wilsonsamm;409001]so to add B onto A, I need to put this, am I right?
A = A + B;[/QUOTE]
Yes, or you can save precious keystrokes and use [code]A += B;[/code] as well. -
What about global warming?It's been a bad week couple of weeks, both here (what with Dunny and Karingal leaving, and the other arguments), and with some people I know in real …
... waming are those of a more right wing nature ... we have had such a devastating effect on the ... is going to have a huge impact over the ... years. It doesn't take a lot to reduce significantly, ... All these little things add up to a lot - educating our children ... -
The Chuntey InitiativeIt's the start of a new year and with it brings a new wave of optimism and hope! :) In light of the relative success of twitter/speccynews (in the s…
I've got a basic prototype up and running ... to sign-up to be a wordpress member to post on ... know and I'll add you as a co-contributor. Remember, there ... -
The official Doctor Who threadOH MY GOD! I did [b]NOT[/b] see that coming at the end of the episode!
... the Doctor takes a trip across a planet and has ... physically exist, it was a constantly updated projection, invulnerable ... a lot of ways and each new showrunner tends to add ... to it. A lot of stuff ... quote]She had a bit of a love-interest in ... -
The official Doctor Who threadOH MY GOD! I did [b]NOT[/b] see that coming at the end of the episode!
... (the Doctor takes a trip across a planet and has ... a lot of ways and each new showrunner tends to add ... to it. A lot of stuff ... Revelation..." when a dalek flies directly up a shaft, first ... ]
She had a bit of a love-interest in "The ... -
SkoolKit 1.0A new release of the Skool Disassemblies is available. This time, besides the traditional [url="http://pyskool.ca/disassemblies/"]online version[/ur…
... definitive Skooldaze rewrite, with a music teacher (in his ... and maybe even add in a rugby game, a computer teacher, who ... etc, I'd add rain and a fat kid (both ... />
Maybe I'd add a "morale" meter, similar to the ... if Eric scores a goal or a try then his ... -
Thunderbirds (by Firebird) on 128k SpecciesHi all. Anyone got Thunderbirds working on a 128k machine (+2) ? On WOS there is an original TZX and a Z80 snapshot in 48k mode, but you cannot run …
... to the last statement in a ling basic line, decrypts the ... using basic commands!!! then enters a tight loop loading from 65280 ... 23296 just doing IN A,254 LD (HL),A DEC HL LOOP so ram ... -
Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…
... the program running crashes unless a write protect circuit is added ... firmware, the initial programming from a tape, subsequent ones over ethernet ... can't just LD (HL), A to set a byte, you have to ... having more complex hardware and a larger, more expensive PCB - ... -
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... ).
To get a value shifted right x pixels ... br /> ; generate a roll table
ld hl, tbl_roll ; hl = start of roll ... times
ld (hl), a ; store result
inc hl ; point to next ... ), you could always save a chunk of binary to disk ... -
Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…
... keys:
ld hl, keyYUIOP
ld b, (hl) ; Get last keypress ... spectrum models
ld (hl), a ; Save keystate this time for ... B and a 0 bit in A
; To detect a key ... moveright ;
bit 1, a ; Test for 'o' key
Questions you were afraid to ask.....This thread is devoted to those questions you never asked, or were afraid to ask but want answers to. Such as: [LIST] [*]Why can't you put metal in…
... sometimes suggested you leave a metal spoon in a cup of water ... the liquid. There's always a danger the microwave will super ... you put pure water in a microwave it will boil instantly ... the container out and add e.g. a spoon. Then it will ...Questions you were afraid to ask.....This thread is devoted to those questions you never asked, or were afraid to ask but want answers to. Such as: [LIST] [*]Why can't you put metal in…
... container out and add e.g. a spoon. Then it ... br /> The microwaves in a microwave oven are attuned to ... an oxygen molecule and a hydrogen molecule, of which ... water molecules, and to a varying degree, things like ... boils over. Just like a fizzy drink suddenly foaming ...Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…
BloodBaz - you corrupt 'b' instantly!
[QUOTE=BloodBaz;424884]
[code]
keys:
ld hl, keyYUIOP
ld b, (hl) ; Get last keypress for YUIOPHelp fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…
... />
ld hl,state_data_structure
ld a,(hl) ; always return with a = state
.setstate
dec hl
ld (hl),a ; store state number
inc hl
inc hl
ld (hl),e ...C Programming question*bangs head* So not a c programmer. I know bitshifts are << and >> But what does <<= mean? I'm trying to work out an algorithm to implement in z…
They're shortcuts. What it's saying is 'var = varFeelin' kinda proud of myselfOkay, it has bugs. But I kludged it together about 10 mins after getting the sprite thing to actually work. [url]http://britlion.googlepages.com/Spr…
...
ld a,(hl)
ld b,a
Is ...
ld a,(hl)
dec a
ld (hl),a
becomes ...
dec (hl)
ld a,(hl)
ld (de),a
inc hl
inc de ...Some Beeper TunesAfter doing a verion of [URL="http://freestuff.grok.co.uk/vbspec/popcorn.szx"]popcorn[/URL] a few weeks back, I got a bit carried away with doing a f…
... 't know. Actually Z80 as a sound generator has no limitations ... no possibility for user to add any drums. A pity).Some Beeper TunesAfter doing a verion of [URL="http://freestuff.grok.co.uk/vbspec/popcorn.szx"]popcorn[/URL] a few weeks back, I got a bit carried away with doing a f…
... 't know. Actually Z80 as a sound generator has no limitations ... possibility for user to add any drums. A pity).[/QUOTE]
I ...Feelin' kinda proud of myselfOkay, it has bugs. But I kludged it together about 10 mins after getting the sprite thing to actually work. [url]http://britlion.googlepages.com/Spr…
...
ld a,(hl)
ld b,a
Is ...
ld a,(hl)
dec a
ld (hl),a
becomes ...
dec (hl)
ld a,(hl)
ld (de),a
inc hl
inc de ...tricks to simplify codingWhen i started with programming in assembler i had very simple approach to do things. Just shifting bytes around, doing simple tests and so... Later …
... [code]
waitkey xor a
ld hl,23560 ; last key pressed ... IM 1
ld (hl),a ; set to NO VALID KEY ...
wkey or (hl) ; Wait until valid key ... (ENTER becomes ;)
ret ; A holds value of key pressed ...Midi out on a ZX SpectrumYears ago (may be over 15 years...) I soldered a small adapter that lets a keyboard or synthesizer connect to the ZX Spectrum 128K's midi/RS232 port.…
... ;431546]if your looking for a cheap xg unit.. you might ... /> I have an sw1000 and a plg card for YEARS.. but ... like that.
I think a synthesizer-module is interesting when ... .
And I will add something like a flanger effect (have something ...tricks to simplify codingWhen i started with programming in assembler i had very simple approach to do things. Just shifting bytes around, doing simple tests and so... Later …
... Gameboy?
It has a slightly different instruction set.
HL...[/QUOTE]
Sadly I am ... of doing some Gameboy stuff a few years ago. Don't ... register or the contents of HL.
A great time saver!Midi2ayhello, Does anyone know how to use MIDI2AY ? FABIEN
... a,(hl)
or a
jr nz,finrsi
inc hl
ld a,(hl ...
out (c),a
inc hl
ld a,(hl)
ld b ...
ld (pos),hl
dec a
ld (hl),a
exit
Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... , for example
;HL - screen address, SP (stack) - sprite ... /> OR E ;sprite
LD (HL),A ;write to screen
[/code ...New Game and HelloHi All, Long, long time lurker and contributor (hardware index, PiMan files etc..) but having been quiet for a few years I thought I might register. …
... /> IF SCREEN = 4
IF A = 0
SPRITELEFT
ANIMATE ... /> IF Y = 40
ADD 1 TO A
ENDIF
ENDIF ...
IF A = 1
SPRITERIGHT
ANIMBACK ... = 100
SUBTRACT 1 FROM A
ENDIF
ENDIF
Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... (C),A
LD HL,4515
LD A,(HL)
LD HL,50000 ...
LD (HL),A
LD BC,#1FFD
LD A ...
OUT (C),A
POP HL
POP BC
Who would you like to see in 10 and 11 Downing Street...?Okay, so the general election has been called and we've had the final PMQs and things are really kicking off now. Counting in the possibility of a Co…
... of things ?3 a week is nothing.[/QUOTE ... a week", and after a while all these ?3-a-weeks start to add ... up to a very large ...
The UK has a growing deficit problem. The Canadians ... you've actually got a public sector borrowing requirement ...
