-
Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... : ld sp, 0 ; 10t
ret ; 10t => (17)+20+6 + (11 ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... ; set scroll count
res 0, (iy + _vdu_flag) ; signal ... in_var_4:
ld (iy + _k_cur_h), 0 ; clear cursor address
call ...
co_temp_5:
sub 17 ; reduce range
ld ... clear bit 2 for inverse 0
rlca ; set for ... -
Which Syndicate to play?For years, one of the many games I've been meaning to try is Syndicate, which everyone says is really good. The trouble is, there are a lot of versio…
... . And there's anywhere between 0% to 0.000% chance that anything ... memories of it after about 17 years from the last time ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
...
; THE 'CALL' COMMAND ROUTINE ; 17 bytes
org 0x392d
fst 0 ; store start in mem-0
fdel ... match
ld c, 0 ; BC = 0
org ... ) ; get character
cp '0' ; leading zero?
ret nz ... -
SCREEN$ bug fixI've been using the SCREEN$() function recently for reading data off the screen rather than taking up space with an array and I got fed up with the s…
... adjustment = (256-offset)/256 = 0 or 1
; 5: ... ,(hl)
sub (ix-17)
ld d,a ; ... $2ab2 STK_STO_$
bit 0,c ;DE=address, BC=length ... of set
ld d,0
sla a
... -
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…
... />
ld b,17 ;countdown from 17
loop
ld ... /> defb 0
bv1 defb 0
defb 0
... 1
call nz,0 ;reset if rocket hits ... 15
defb 12, 0, 128, 192
defb ... 4, 4
defb 0, 0 ; UDG data[/CODE][/QUOTE]< ... -
Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…
... a,a
sub (iy+17) ; subtract x-threshold
inc ... a,a
sub (ix+17) ; subtract x-threshold
inc ... , 0,255, 0,255, 0,255, 0
DEFB 255, 0,255, 0,255, 0,255, 0
The. Tap StoreWelcome to the [URL="http://thetapstore.zapto.org/"][IMG]http://thetapstore.zapto.org/images/logo1.png[/IMG][/URL] Here we hope to create an archiv…
... ms
acc1-xe-0-0-2.sf.21cn-ipp. ... bt.net (109.159.251.17) 30.879 ms
peer2-xe4-0-0.telehouse.ukcore.bt.net ( ... br /> peer2-xe2-1-0.telehouse.ukcore.bt.net ( ... ms
13 xe-0-0-1-vcr2.dub.cw. ... 15 * * *
16 * * *
17 * * *Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... 't actually doing a PAUSE 0 but a PAUSE 7997 as ... to PAUSE_1 which takes the delay from the BC register which ... " takes 25 bytes whereas "PAUSE 0: CLS:" takes 11 bytes, plus ...SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…
... ATTR (0,0): PRINT ATTR (0,1): PRINT ATTR (0,2): PRINT ATTR (0,3 ... /> 3001 INK 7: PRINT AT 0,0;"01234567890123456789012345678901"
3010 INK 2 ... ,24;"\b": PRINT AT 17,0;"\b": PRINT AT 17,7;"\b": PRINT ... ;"\b": PRINT AT 17,24;"\b": PRINT AT 18,0;"\b": PRINT ...ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... =$+1
ld a,0 ;initial offset value, incremented elsewhere ... ex (sp),hl ;19 additional delay
ex (sp),hl ... (assuming offset = 0):
Line 0: 0, 1, 2, ... /> If the offset > 0, there's two types of ... going from 127 to 0. Basically... same as ...really dumb questionbut can I use the following line to create a udg and if so how do I call it or use it via the graphics mode? Do I need to READ something somewhere? …
... ,0,28,162,64,128,0,32,192,0,-1
12 DATA14,17 ... DATA56,69,65,32,32,17,14,0,227,20,4,113 ... ,56,0,142,81,16,200
17 DATA40,20,227,0,56 ... ,113,0,113,138,65,46,17,40,199,0,192,32,0,128 ... ,64,162,28,0,-2 ...ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... from the default order of 0,1,2,3... and so ... and we're at line 0. In that case - at least ... is to adjust the initial delay (from the beginning of an ...Fists of Fury (Virgin)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0011704"]http://www.worldofspectrum.org/infoseekid.cgi?id=0011704[/URL] I've got this title. …
... ; Program: DUX - Header: Length= 17, Pause=967ms.
... 2 => ------------------- - Line= 0, Length= 410, Pause=985ms.
Finding pause...
Block 17 => F: 61 - Speed: ...hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... ,37,34,
29,20,17,1,23,53,21,2 ... ,47,76,0,1,0,76,0,0,0,4,0,
0,0,0,1,0,0,0,0,0,1,0,76,76 ... ,76,76,76,
0 ... ,1,0 ...The Evolution of Some Nonsense[center] [B]TIMINGS FOR 100 BOUNCES[/B] [b]Ten Bouncy UDGs in BASIC[/b] [img]http://www.users.globalnet.co.uk/~jg27paw4/pourri/a000test.gif[/img] [u…
... $ 22+CHR$ 0+CHR$ 0+CHR$ 16+CHR$ 6+CHR$ 17+CHR$ 2 ...The Evolution of Some Nonsense[center] [B]TIMINGS FOR 100 BOUNCES[/B] [b]Ten Bouncy UDGs in BASIC[/b] [img]http://www.users.globalnet.co.uk/~jg27paw4/pourri/a000test.gif[/img] [u…
... $ 22+CHR$ 0+CHR$ 0+CHR$ 16+CHR$ 6+CHR$ 17+CHR$ 2 ... $ 22+QCHR$ 0+QCHR$ 0+CHR$ 16+CHR$ 6+CHR$ 17+CHR$ 2 ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... /> LD DE,nn ; columns 17 and 18 (*)
LD BC ... br /> PUSH DE ; columns 17 and 18
PUSH ... /> LD BC,5
DELAY:
DEC C
... JR NZ,DELAY[/CODE]
The ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... /> LD DE,nn ; columns 17 and 18 (*)
LD BC ... br /> PUSH DE ; columns 17 and 18
PUSH ... /> LD BC,5
DELAY:
DEC C
... JR NZ,DELAY[/CODE]
The ...hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... ,37,34,
29,20,17,1,23,53,21,2 ... ,42,70,0,1,0,76,0,0,0,4,76,
0,0,0,61,0,0,0,0,0,1,0,0,61 ... ,76,47,47,
0,0 ... ,16,70,0,1 ...Exploding routineI've been mucking about with 'Explode' from YS Program Pitstop, but I can not get it to work independently of the basic program. LET L=USR 61456 doe…
... to this area
k: delay factor. Greater values produces slower ... left corner, which is position (0,0). Range is to 255 and ...PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
... that enable +D functionality with delay after power-on. (see divide ... should be a power-on delay for the CPLD logic.
How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... ;co-ordinates
defb 17,7 ;INK 6 command
Defb 17,8
defw 'TESTING'
DEFB 0,0,0,0,0,0,0,0 ;(032) - SPACE
DEFB 0,48,48,48 ... 48 ;(033) - !
DEFB 0,108,108,0,0,0,0,0 ;(034) - "
...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... 6 command **
defb 17,[B][I]0[/I][/B] **
defw ... /> udg
DEFB 0,0,0,0,0,0,0,0 ;(032) - SPACE
DEFB 0,48,48,48 ... ,48,0,48,48 ;(033 ... ) - !
DEFB 0,108,108,0,0,0,0,0 ;(034) - "
etc ...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... 6 command **
defb 17,[B][I]0[/I][/B] **
defw ... /> udg
DEFB 0,0,0,0,0,0,0,0 ;(032) - SPACE
DEFB 0,48,48,48 ... ,48 ;(033) - !
DEFB 0,108,108,0,0,0,0,0 ;(034) - "
... ?[/QUOTE]
I think defb 17,0 is for BLACK paper.
Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…
... 's essential to include a delay loop in order to see ... .globalnet.co.uk/~jg27paw4/pourri/0-surc-contents.htm]Compendium[/url ... ;will always bring in a 0 as OR resets Carry
Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…
... enough to put in a delay loop somewhere. Note that ... be set with BORDER 0 and POKE 23624,0 (BORDCR). (Actually, ... ; 000000GH IJKLMNOP
ld bc,0
ld (CHANGED),bc
0 as OR resets Carry
