-
128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... A ; 32810 119
ADD HL, DE ; 32811 25< ... br /> LD A, 32 ; 32871 62 32
SUB H ; ... DE ; 32895 19
ADD HL, DE ; 32896 25
IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…
... 159,16,251,254,2,32,11
160 DATA 62 ... ,16,6,32,237,178,61
170 ... DATA 32,249,24,218,211,191 ...
180 DATA 21,32,210,211,127,211
add the corrections, as English is ...FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
...
ld iy,#0x0000
add iy,sp /* iy=sp */
[CODE] 69 ;serial.c:32: void serial_write(byte b) __naked ...
000B FD 39 77 add iy,sp
000D FD ...ZX Alien Breed - WIPI'm sure a lot of you have seen the discussion in the New Game Ideas area about a Speccy version of the classic Amiga game Alien Breed. I've been dro…
... fashion. Of course, when I add the up/down code they ... -line towards you along the shortest route. But the screenshot shows ...misunderstanding screen addressingHi I am just reading mastering machine code Toni Baker: [url]ftp://ftp.worldofspectrum.org/pub/sinclair/books/MasteringMachineCodeOnYourZXSpectrum…
each row is 32 bytes long so the address ... at 0x40A0
then obviously add 4 bytes to move from ...Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…
... />
[CODE]
REPT 32
ldi
ENDM[/CODE ... could always just type out 32 lines of LDI, :)
REPT 32
ldi
ENDM< ... by 8 and multiply by 32
rlca ; net ... screen
;add a, e ; add to total so far ...Column and row numbers to attr address?[FONT=Calibri][SIZE=3]Can anyone provide me with a code snippet the will convert the column and row numbers into the screen attribute address. For ex…
22528+E*32+D
Quick, dirty ... /> add hl,hl
add hl,hl
add hl,hl
add hl ... ,hl
add hl ...
ld d,58h
add hl,de[/code]Spectrum screen layoutSeeing the thread on displacement I was wondering why the spectrum had the stupid screen split into three sections and the addresses for each section…
... worried about.
Even "ADD HL,DE" is not as ... dedicated to the value of 32 that quite often either forces ...30-column 8x2 multicolor (even in 48K)I don't recall any 8x2 multicolor routine for 30 columns that would work on all Spectrum models (including the Spectrum 48K), so I decided to write i…
... Coder;767853]It seems like 32-column 8x2 multicolor is also ... /> Now you just need to add another instruction at the end ...Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
...
; ix = compare
add hl,bc
push hl ... /> ld h,d
add hl,bc
ex de ... hl ; hl = i
add hl,bc
ex de ... I want to avoid rare 32 minute sorts :D )
Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?
... LDI LDI LDI LDI repeated 32 times or so just isn ... ]
Standard:
[CODE]ADD A,L
LD L ... ]
Beautiful:
[CODE]ADD A,L
LD L ...Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?
... LDI LDI LDI LDI repeated 32 times or so just isn ... .
I'd also add lookup tables as something that ...Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…
... ,#10,#08,#04,#02,#01 ;32 times[/QUOTE]
routine ... NZ,FNXT:LD A,E:ADD A,32
LD E,A ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... position.
rrca ; multiply by 32.
rrca
rrca< ... for high byte.
add a,88 ; 88*256= ... ld a,l ; get x*32 again.
and 224 ; mask ... get y displacement.
add a,l ; add to low byte.
Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... like POKE 22528 + 1 + ( 2 * 32 ) , 255 to be the equivalent ... you just need to add or subtract 32 to move up or ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... you just need to add or subtract 32 to move up or ...Porting Blues Brothers CPC->ZX...just an ideaI've just watched a video of the CPC version of the Blues Brothers games by Titus [url]http://www.youtube.com/watch?v=6DOj-Ta3Ek4...Based[/url] on th…
... elaborate scheme?
32 bytes - bitmap
4 bytes ... />
[QUOTE]32 bytes - bitmap[/QUOTE]
[00 ... bytes - colorize[/QUOTE]
[32..35] - Attribute values for the ... I'm hoping to possibly add things that the other platforms ...SpecBAS / SpecOS documentationHi, I just find out about SpecBAS and I was so impressed by the new functions while retaining compatibility with ZX Basic that I've been playing wit…
... $,0,f*36,0,16,32 TRANSPARENT 0
110 SPRITE ... every 36 pixels
110 add that grab to jj
120 add that grab to kk
just add
10 LOAD "jj ...Basic program malfunctionHello. Please does anyone know why this basic program 10 LET x=0 20 LET x=x+0.1 30 print x 40 if x<>1 then goto 20 50 STOP does not properly work o…
... point formal only has a 32-bit mantissa. This means it ... than 0.1. If you add that representation ten times you ...Frontend for the +3e projectHi, I have recently finished building the 8-bit simple interface and installed the +3e ROMs into my spectrum +2A (Back model) and it is working fine …
... ,"W>0,0,22,32,6"
1020 LET np ... />
You just need to add DATA lines like the two ...Official Basinc thread - Bug reports and other discussionI just released a new BASin fork, basinc. The first official release was V16r2, and today it's r3. it's uploaded to wos archive and alternatively, h…
... or may be extended to add more functionality, right?[/QUOTE]< ...
HAM256: 256x192, character attributes, 32 colors per line from 256 ... /> HAM8x1: 256x192, 8x1 attributes, 32 colors per line from 256 ... There are no plans to add any further features to ULAplus.Why is the scene less participative now? or at least, a bit hollow...I have found out in the last months, that despite of having a huge number of new games with a huge quality, a great number of hardware projects, and …
... is writing all sorts of add-ons for Einar's driver ... gates on his clone to add palette support. I revived an ... the on-screen colors from 32 to 64. Philip Kendall created ...Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…
... the x86) and then z80000 (32 bit cpu, not sure when ... the z180 (originally 64180) to add a simple MMU and peripheral ...Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…
... the x86) and then z80000 (32 bit cpu, not sure when ... the z180 (originally 64180) to add a simple MMU and peripheral ...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$=" …
... /> LD BC,4
ADD HL,BC
LD D ... LD BC,ERROR-1
ADD HL,BC
LD E ... /> LD (63092),DE
ADD HL,BC
LD D ... ,(HL)
ADD HL,BC
LD E ... /> RRA
RRA
ADD A,D
LD L ... BC
LD A,32
ADD A,L
LD ...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$=" …
... unnecessary
add hl,bc
ld a ...
add hl,bc ;HL=22528 + 32*y + ... byte
ADD A,D ;add in x
LD A,32
ADD A,L
... djnz colloop
add hl,de ;skip to ...Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
Here's a much neater version of my previous post. Using IX for addressing the parameters simplifies the assembler code. The original routine needed all its parameters to be correct beforehand, as it was only doing a check on y, whereas all of x, y, x+w, y+ ...What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…
... , beat-'em-ups with unfathomable 32-sequence button presses, and so ... could have been an optional add-on, as could a floppy ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... its values). This happens every 32 scan lines. Each scan line ... , so the complete run lasts 32*64 = 2048us = 2.048ms. Slighly ... ,l
add a,a
add a,a
add a,a ...Game of Life.Last year (I think) or maybe the year before, I entered a Game of Life simulator into the CSS CGC compo but for the Sinclair ZX81. I decided to port…
... ld bc,41
add hl,bc ;skip over header ... pop ix
ld de,32
ld c ... bc
cp (ix-32)
adc hl,bc ... pop bc
add ix,de ;ix += 32
dec c ...
