-
Sprite RotatingI was looking (actually at Everyone's a Wally), and noticed that all the graphics for the main characters are left facing, and two characters wide. …
... 't want to then that's OK.
[/QUOTE]
well ... /> loop
ld (de), a
inc e
ldi
ldi ...
ld (de), a
inc e
ldi
ldi ...
ld a, (de)
ld (bc), a
inc c
Things That REALLY BUG YOU!My Mum's birthday is on "Valentine's Day", so when I pay out loads of money for a card and gift - it looks like I'm all "GIRLY" and a poof!
People who put periods between each and e.v.e.r.y. letter in a s.e.n.t.e.n.c.e.
( I hereby completely agree with that other WoSser. )Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... , 16 = time before bubbled nme's burst out.
... most of the level no's in there but NOT ... in hex
A table at 86OFhex shows levels ... always 2,4,6,8,A,C or E.
... 32383). (53 bytes) - bubble data. a list of levels that have ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
...
[/code]
i.e. I am expecting to divide ... by 30 getting 3 in A:C and 10 in HL.
[/quote]
That's because you've only got ... /> ld b,a
ld a,c
cpl
ld c,a
ret ...Keyboard demoHere's a preview of a new keyboard for the special fx engine. Press any key to start/restart. [url]http://dl.dropbox.com/u/9498358/fire_keyboard.sn…
... it specifially on ccowley's Cauldron2_Remix.bbsong file (changed ... ADD A, A
ADD A, L
LD L, A
LD E, ... NEXTPIXEL
DEC C
JR NZ, LOOP1
DEC C
JR NZ, LOOP2
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…
... c ;C =s
ld (IX+0),c ; =j=s ROW j INDEX
ld a,c ... ADDRESS
ld e,(IX+0) ;E =j ROW j INDEX ... ADDRESS
ld e,(IX+3) ;E =t ROW t ...USB mini/micro/A/B/BollixFor the past few years I've had a few HTC phones (can't remember what they were called apart from the last one, which was an HTC Touch 3G). One of th…
... that my Samsung Wave uses a micro-usb charger. Why? Because ... indispensable Nintendo DS, my wife's phone (LG Cookie/pep I ... well!
N-I-C-E! :)logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…
... />
PRINT USR start,A$,C$,
and then ... br />
Now A$ and C$ are at calculator stack, ... ready to be used as i.e ... . INSTR commmand[/quote]
I did a ... /> Here it is. It's a PLOT command, so nothing new ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... 8 seconds:
zx232 /s CYBER.SNA
This ... (c),a
ld bc,49149
xor a,a ; Input mode
out (c),a ... />
poll in a,(c) ; Poll
and a,00010000b ; RxD
jr ... hl
ld a,e
or a,d
jp nz ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... = length - 1
ld a,c ;
or a,b ; Best way to ... G F D S A
; 251 T R E W Q
ld a,c
cp a,SCRWTH-SPRWTH
jr ... ,no_down
ld a,c
cp a,SCRHGT-SPRHGT
jr ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... /> db 121 ; ld a,c
db 176 ; or a,b
db ... depacker/restore code). In Cybernoid's case, pass #2 shows location ... one BYTE
ld a,c ; Check for zero?
or ...
.next: ld a,e ;
cp a,l ;
jr nz ...Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…
... can't explain why it's going wrong, the change ... hl ; 7f61 23
in a, ($fe) ; 7f62 db fe
ld c, e ; 7f6c 4b
ret ; 7f6d ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... boot code. Cybernoid and Sweevo's World are fine.
... db 121 ; ld a,c
db 176 ; or a,b
db ... db 123 ; ld a,e
db 189 ; cp a,l
db ... made some adjustments... I need a day off!!!
C/C++ ?" then I'm ...Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…
... even more, so here's the original version which didn ... DB FE
BIT 6, A ; 7F60 CB 77
JR ... D ; 7F67 42
LD C, E ; 7F68 4B
RET ; 7F69 ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... = length - 1
ld a,c ;
or a,b ; Best way to ... G F D S A
; 251 T R E W Q
ld a,c
cp a,SCRWTH-SPRWTH
jr ... ,no_down
ld a,c
cp a,SCRHGT-SPRHGT
jr ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... = length - 1
ld a,c ;
or b ; Best way ... = length - 1
ld a,c ;
or b ; Best way ... G F D S A
; 251 T R E W Q ...
ld a,c
cp SCRWTH-SPRWTH
ld a,c
cp SCRHGT-SPRHGT
Raided by the Customs and ExciseA friend of mine (in England) has been raided by the police and the Customs and Excise, for selling cigarettes that had come into the country without…
... morally wrong, but she's only selling counterfit clothes ... C&E men searched her house? You NEVER see a ... buying cheap cigarettes. It's not right, admittedly, but ... since she's a nobody then she's in real trouble ... right, but she's asked a solicitor, and has ...Genesis: dawn of a new day, new game from RetroWorks!It's been a long development, but finally we made it. We proudly present the latest game from RetroWorks, Genesis: dawn of a new day. [img]http://ww…
... controll.
It's way for easy detect mouse ... /> IN E,(C)
LD B,#FF
IN A,(C)
AND E
LD B,A
CP #FF
... time then it's not joystick !!!
LD A,B
... in same time then it's not joystick !!!
JR ...Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…
... all for the advice - here's the final routine...
[ ... optimal.[/LIST]
Therefore it's better to minimize the waiting ... of your row of INI's, use a conditional, absolute JP ( ... -state faster than IN A,(C)
AND E ; any register that ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... movement.
It's pretty slow too, it could ... for another time, it's beginning to make my head ... /> The rra code's below if anyone's interested (1 down ... left 4 right and it's far from bug free):< ... e,a
add hl,de
ld a,(hl)
xor c< ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... and flip code - it's really just a minor adjust to the ... everything is so fast, there's no game logic there just ... ,maskdata
ld a, c
and 7
ld e,a
ld ... l,a
ld a,c
srl a
srl a
srl a
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... downed" keys
scanline: in a,(c) ; read kbd
or 0xe0 ... jr endofscan
keytoe: ld a,e
cp 0
jr ... c','v'
.byte 'a','s','d','f','g'
.byte 'q','w','e ... C','V'
.byte 'A','S','D','F','G'
.byte 'Q','W','E ...Minor Update to Gasman's Midi2BEEPDon't know whether this is worthy an announcement, but for those of you who enjoyed Gasman's midi2BEEP utility, a new variant has been made called mi…
... /> ld bc, ay_reg
out (c), a
pop af
ld ... , ay_128dat
out (c), a
ld e, a
ld a, (iy + _bordcr)
out (c), e
out (ula), a
ret
[/code ... and sent to the 128's data port. The value is ...New platform game: Sid SpannersHi all, here is my Christmas present. A new platform game (well, more of a mini-game really). [url=http://java.cms.livjm.ac.uk/homepage/staff/cmspc…
... in future games, you have s a score, and the score is ... come back to a project a year later, it's easier to get ... .
So it's a trade off. I have no ... C I can just write a game about five times faster (i.e ... of free time, so it's a good thing. :D
...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
Here's an updated version of FN ... both destination & source. It's a ... [b]bit[/b] longer than ... GO SUB 16
It's only 1/4 the speed ... s still a lot quicker than an hour and a half - and it's ... 16-19.
The LET a$=c$ restores the plain command to ...Presents & GiftsEver since I was a kid, I never really liked getting presents & gifts... first, maybe it's because I'm shy or something, it always made me unconfort…
... and JD.. (and no M-A-C despite rumours)
... gifts.. but sometimes it's little things said months before ... that give a person away. Women as a whole are ... by what someone in a shop says e.g. this is ... way, least you have a wife buying you nice gifts ...Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…
... compressed room map. i.e. the layout of the ... listing the room destinations n,s,e,w. (I knew I ... "extra data" segment. i.e. which nuts have been collected ... room on entering, I have a C function (I suppose in ... base address of that room's data, and accessing all ...AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... calculation.
So here's a new version of my ProTracker ... 128
; Copyright (c) 2004, 2007 S.V.Bulba
c, pd_nois
add a, e
jr c, pd_esam
add a, a
ld e, a ...Japan Tsunami AppealAs some of you will be aware, I've been tinkering with an open source version of SE Basic that could be distributed with hardware without infringing …
... QUOTE]
It's expected behaviour. OpenSE BASIC supports ... Timex's AY port. That's why you occasionally see a couple ... more unfortunately sometimes get a small click from the ... c), e ;
out (ula), a ;[/code]
replace the out (c), e ...fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
...
cp a,32
jp c,.printQuit
ld e,a
ld ...
ld l,a
ld a,c
and a,#18
or ... a,#41
ld h,a
p.s.: the code taken from 'The ...
