-
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
That can be done a bit faster when you replace ...
ptr_block1
ld a, h
ld de, something
ld (hl), d
inc h
ld (hl), e ... />
...
ld h, a
inc l
ret ; ... -
Platform games you *must* play?I've finally gotten around to buying Braid on XBox Live!, I played the demo years back on the PC and meant to buy it, but my backlog is so huge that …
...
[*]Roller Coaster
[*]H.E.R.O.
[*]Horace and the ... games
btw. Wikipedia has a [URL="http://en.wikipedia.org ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... position for later
LD A,D ; Convert to display address
AND &78
LD D,A
LD B,8 LD ... next character line
INC D INC D ; Step to next pixel ... screen
LD A,H
ADD A,8
LD H,A ; Step to ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... for later
LD A,D ; Convert to display address ... &78
LD D,A
LD B,8 LD ... line
INC D INC D ; Step to next ... br /> LD A,H
ADD A,8
LD H,A ; Step ... AND &78
LD D,A
LD B,7 ; ... -
Stress-testing a harddiskI'm suspecting that a couple of my drives are about to fail, as I'm getting some strange behaviour under certain conditions. Can anyone recommend a …
S.M.A.R.T is borderline useless, by ... data off it is actually a fairly rare occurance. Low level ... the drive completely, although I'd be hesitant to put anything ... valuable on a drive that's clearly on ... it's way out. If a drive is having issues the ... -
Coming soonNext Monday should (assuming I actually do some more work on it) see the release of a 'revolutionary' new game for the Speccy. You won't have seen a…
... />
(Assuming the R&D people can overcome a few obstacles. 'SD ... they can do* to ensure a fantastic release)
Tomorrow ... -
Revolution is close...In the works is a revolutionary new game that you have never seen before.. well not yet anyway.. Details cannot be revealed yet as rival parties and …
Development has gone a bit behind due to playing with S&D's latest awesome creation, but our R>D department assures me it is a matter of couple of weeks, maybe less, perhaps more. Who knows, they only send me real mails. I can only guess. -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... /> OK, here goes a routine for printing hexadecimal numbers ... br /> printhexhl
ld a,h
call printhexa
... /> add a,a
ld l,a
ld h,15
a,(hl)
ld (de),a
inc d
ld a,d
sub 8
ld d,a
... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... /> [code]
printhexhl
ld a,h
call printhexa
ld ...
add a,a
ld l,a
ld h,15
add ...
ld a,d
sub 8
ld d,a
inc e ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... ,a ; 4
adc a,h ; 4
sub l ; 4
ld h,a ... e,(hl) ;7
ld d,$00 ;7
add hl ... e,(hl) ;7
ld d,$XX ;7
ex de ... up with something faster, I'd use it. 1T difference counts ... -
I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... do it. It also helps a lot if you don't ... try. Then it is just a matter of not hitting something ... up.
It was a struggle to get some of ... the A.R. and about 10 trophies to get and that'd be ... -
Help needed... RND in machine codeI have been battling away trying to convert a simple BASIC routine (below) to machine code, but to no avail. The routine is used to fire 2 bullets a…
... this.
[CODE] ld a,r ;constantly cycled number,Patricks xor ... inc
add a,a ;x2
add a,a ;x4 ;A now contains 'randomly ... on my brew :-D
[CODE] ld a,r ;random number
a,r or ld a,(23672) amongst others. For ... -
Uchi Mata inlayThe one in the entry belongs to the C-64 version. Would it be better to have at least a Spectrum re-release one, like the Erbe or Alternative? ;) Ju…
I'll have a look for it, but I'm about 40-50% sure I have one (both versions) .. even if I don't a few people on here / elsewhere are bound to.
how come you didn't flag up both versions of the full price h.e.r.o huh ;-)
hehe -
Uchi Mata inlayThe one in the entry belongs to the C-64 version. Would it be better to have at least a Spectrum re-release one, like the Erbe or Alternative? ;) Ju…
... =fog;642409]I'll have a look for it, but I ... ) .. even if I don't a few people on here / elsewhere ... versions of the full price h.e.r.o huh ;-)
Uchi Mata inlayThe one in the entry belongs to the C-64 version. Would it be better to have at least a Spectrum re-release one, like the Erbe or Alternative? ;) Ju…
I just had a quick look / couldn't find ... it :( .. I do have a version of it , but the ... .. etc.. it's a double cover , not a clam if I recall ... hhmm
h.e.r.o the activision game has ...First single/LP boughtI was thinking recently about the first single i bought (on vinyl) which was 'Call me' by Blondie in 1980 (it still has the 99p price sticker from Wo…
If I was lying I'd say, Bowie / T.Rex / Roxy.< ... of Man.
I'd recovered by the time I ... />
I remember buying M/A/R/R/S "Pump up the Volume ... I didn't actually have a CD player.80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…
... use it? There was a version of Tasword that used ... for phoenix make me a TOS to +3DOS converter ... much influence on a wholly-owned subsidiary of a US company, ... everything to Dundee as a payment of something UK ... lines and no computer R&D. In Portugal there was ...Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…
... />
[code];D=Y E=X
ld h,0
ld ... l,d
add hl ... /> ld d,0
add hl,de
ld a,h ;adding to ... ,32:add hl
add a,#58
ld h,a[/code]WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …
... ,C;"*"
50 LET A$=INKEY$: IF A$="" THEN GO TO 50 ... L,C;" "
70 IF A$>="0" AND ...(Re) building a ZX Spectrum laserharpThe Cambridge show is nearing, and I want to bring my laserharp with me. Why? Because it's built around a ZX Spectrum +2: [IMG]http://benophetintern…
... standard deposition techniques to make a mirror 100% reflective for specific ... wavlengths. ( we spent over a year trying and at ?5k ... + a run it's it's expensive r&d )
You can use a 'light absorbent ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... and %11000
or h
ld h,a
pop af
ld e,a
ld d,0
rl ... multiply by 8
rl d
rl e
...Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
Interesting
[CODE] 2 dec = 00000010 in binary
34 dec = 00100010 in binary
162 dec = 10100010 in binary
where the data bits are
MSD -> 76543210Rodland in colourAs promised (some time ago already ;) ), here is my hack attempt to add some colour to Rodland : [URL=http://www.image-share.com/ipng-1680-98.html][…
... /> OR 80
OR H
LD H,A
;find color
LD E,A
LD D,ColorTable/256 ;basically does ... DE=ColorTable+A
LD A,(DE ...eBay removes a listingGot an email from eBay today: "Your listing is removed, digitally delivered goods need copyright owner permission" blah blah. I am the copyright own…
[QUOTE=mel the bell;648961]and then they dont bother with discs that contain the entire speccy or c64 etc libary?[/QUOTE]
That's cos' it has a printed cover, and a badly designed donut sticker on the CD-R :Dmerging bytesPicturing three bytes with their bits identified by letters to make the visualisation easier, what's the best way to perform this transformation? [co…
... : A, D
LD A, H
AND E0h
LD H, A
LD A ... /> LD D, A
AND 1Fh
OR H
LD H, A
LD A, D
AND ...Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…
... = y, z = w
ld a,l ; w = w ^ ( w ... 1) ^ w
xor h
xor l
ld ... h,e ; y = z
ld l,a ; w = ... .
It's a very small improvement, but since ...Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…
... s code could be optimized a little bit more...[/QUOTE]< ... tweak it to make it a bit more esthetically pleasing ( ... ^ ( w 1) ^ w
xor h
xor l
ld ... h,e ; y = z
ld l,a ; w = ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... is grey because text after a ; is a comment. The assembler ignores ... called BC, DE, and HL (H is for High byte, L ... the instruction for load a value into a register or register pair ... car
ld (hl),a
We'd like to 'sub hl ...New WIP from Kabuto Factory: A.R.C.O.S.Hi everybody! After a long time in silence (...you know, life and its commitments...), we're coming back with new WIP for Speccy: A.R.C.O.S., a new …
... " phase, we come back with A.R.C.O.S :)
< ... (at least, almost of them :-D) and we've added shoot ... 'em up stuff (a laser blast with limited ammo ... release ports for Sinclair ZX81 (a 4kb reduced version) and for ... />
Greetings... and stay tuned :-D
