-
A great ROMBack in the early 90s my ZX clone (called "Cobra" if anyone's interested) had a sort of a "SamRam" (actually an alternate ROM accessed via a NMI) tha…
... anyone's interested) had a sort of a "SamRam" (actually an ... ROM accessed via a NMI) that displayed a menu featuring a nicely drawn ... v3.2" and, further down, "(C) 1988 by DIPO'S". This ... of Spec-chums are missing out on a great assembler/monitor package ... -
4 pin TV out on a laptop questionI've got an old P3 866Mhz laptop that has a 4 pin TV out socket. I'd like to use this with my 14" TV running a Speccy emulator, but I remember being …
... 866Mhz laptop that has a 4 pin TV out socket. I'd ... with my 14" TV running a Speccy emulator, but I ... being told some guff by a guy in maplin that ... the connections would not give a colour picture if you had ... one standard 4 pin TV out socket on laptops, or is ... -
Small C on Sam help neededI'm trying to make good on some of my old developments that fell by the wayside and one of them uses Small C. The reason I stopped was down to not h…
... one of them uses Small C.
The reason I ... was down to not having a good way of loading data ... a Sam-C a-like layer for gcc/SDL on Linux to try out ... is no fopen in Small C.
Can anyone advise ... -
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.…
... I soldered a small adapter that lets a keyboard or ... br /> So I got it out of my large box of ... , it's soldered again in a minute, but...
Out when controlling a midi device.
a cable without extra parts that connects the Midi Out ... -
PoC for a ULA video generator described using Handel-C and a Basys FPGA board.Recently, I've taken a course about hardware design for video processing using FPGA's. The HDL used in the course was Handel-C, a C look alike langua…
... in the course was Handel-C, a C look alike language which ... work for producing a bitstream compatible with a Basys board from ... 0). Then, a timed loop (with a delay of 32768 clocks ... For comparison purposes, a BASIC program running in a emulated Spectrum using ... -
A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…
... ROMs (needs to be worked out). Call it with H,L ... />
ld a, (P_FLAG)
ld c, a
bit 2, a ; Test for ... a
sub c
ld e, a
sbc a, a
ld d, a ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... URL] by Arjun. Note: maybe out of date.)
a sprite routine, a joystick handler and ... used to make a game.
(C) 2012 Timmy ... />
****************************************/
// C and SP1 code libraries are ... -
Simple AY library in z88dk/CI was interested to see if I could make the 128k AY chip work, and as there wasn't any library on it, I just made one for fun. It's certainly not th…
... , l=value
// OUT: out 65533,h : out 49149,l
#asm ... 255
out (c), h
ld b, 191
out (c), l
[/CODE]
Also a demo program (note there is ... br /> #include
#include "aylib.c"
uint periods[12 ... -
Using R as a loop counterThis is just something silly I've found a while back. xD [b][How-to][/b] Setup your routine like this:[code] ld a,X ;see below ld r,a loop ;your …
... bc,#0405 ;b=LoopN, c=Rinc
ld a,#FE
.l1 ... nz,.l2
ld a,b
out (#FE),a
ei
c:
-not suitable for ... wondered, yes, it's possible. c:
Hope you enjoyed, and ... -
Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…
... P (bit 0)
in a,(c) ; read it
rra ...
ld a,c
cpl
ld c,a
and ... 0
or 8
out (0xfe),a
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... />
Time to find out...
Register A:
[code]
out whats going on. Barring that ... later...
It turns out my reading comprehension skills are ... C,A
48 = LD C,B
49 = LD C,C
4A = LD C ...Autoloading bin2tap out there?Hello, my will for coming out with a game of my own seems back somehow, so I've been setting up my developing environment *again* on my new PC. Afte…
... my will for coming out with a game of my own ... test code written in C, but I can't ... the last two build a .tap out of the .bin, ... /> Have some of you a working and autoloading bin2tap compatible ... with a modern windows? Any workaround ...[Asm] Is this nested loop faster than LDIR or a bunch of unrolled LDI's?Hi all. I'm learning Z80 asm on Speccy 48K, and to start with I decided to write my own "CLS" routine (without relying on ROM calls or LDIR) as a lea…
... system variable 'BORDCR'.
out (ULA_PORT),a ; Change border color. ... loop iteration.
dec c ; Move up to the ... ,cls_attributes_loop ; Keep looping until c = 0. Faster than jump ... ,cls_screen_loop ; Keep looping until c = 0. Faster than jump ...Why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem that it would be better for "Z80 beginners" to write in C…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...Why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem that it would be better for "Z80 beginners" to write in C…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...Why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem that it would be better for "Z80 beginners" to write in C…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem that it would be better for "Z80 beginners" to write in C…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...Why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem (to me) that it would be better for "Z80 beginners" to wr…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...Why not more interest in C?Just curious. Not trying to provoke anything other than a discussion here. It would seem (to me) that it would be better for "Z80 beginners" to wr…
... to provoke anything other than a discussion here.
... beginners" to write in C then have a look at the list ... fast assembler.' Turned out they compiled from C then were tweaking the ... giveaways that some assembler came out of a C compiler of the time ...RGB or Composite out of a Spectrum Plus?Anyone know of a way? I dont mind soldering ect. I also heard that their was composite on the expansion bus(Anyone confirm?) Anyone know of a way?
Anyone know of a way?
I dont mind soldering ect. I also heard that their was composite on the expansion bus(Anyone confirm?)
Anyone know of a way?TommyGun - Utility ... what's going on...For those interested, Tony has been busy lately and unable to put as much time into TG as he'd like. He also has a child on the way soon. He told me…
... .
TommyGun started out as a simple graphics conversion utility, then ... window and typing the command "C:\Z80.exe mygame.asm". Thats ... code in some way ( Basic/C/asm/Forth[?]/etc) for it ... TommyGun?
A) If you know C++ you can use the ...Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
... />
call SprBlank ; Blank out old position, this is the ... /> ps3: LD C,A
INC C
LD A,C
CP RECTRIGHT ... ,ps4
LD A,RECTLEFT
ps4: LD C,A
...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... br />
call SprBlank ; Blank out old position, this is the ... br /> ps3: LD C,A
INC C
LD A,C
CP RECTRIGHT ... ,ps4
LD A,RECTLEFT
ps4: LD C,A
; ...Type-ins from a bookI seem to have (temporarily) acquired a copy of Virgin Books' "Games For Your ZX Spectrum" (see [url="http://www.worldofspectrum.org/infoseek.cgi?reg…
... seem to have (temporarily) acquired a copy of Virgin Books' "Games ... of these are here already out of a possible 24, but I ... book, which could also be a useful addition to the archive ... ). Now, if only I had a working OCR, that bit would ...Oo! Look what I just found...Came back to the parents' for the weekend and while bored, I remembered a largish box of Spectrum stuff I inherited, so a quick trawl revealed a tape…
... bored, I remembered a largish box of Spectrum ... inherited, so a quick trawl revealed a tape labeled:< ... label is obviously printed out by a Speccy (the font being ... as the tape is (C) S. GREEN as is ... until tomorrow unfortunately - oh wait a minute.. what if...
ANN: Tipshop updated Sunday, 30 October 2005Sunday 30 October 2005 Crivvens! What an indecently massive load of stuff this month - a veritable feast of tips, maps, POKEs and complete solutions.…
... Massive deep breath]:
Adventure C: Ship of Doom , Adventure E ... Frogg Adventure ,
From Out Of A Dark Night Sky , Funhouse , Future ... I haven't missed anything out this month? :)
* ... to Woody for pointing it out.
* Martin ...ANN - ZXSoftware UpdateHi folks, A few titles have been updated and added. Enjoy, ADJB 3D Snooker Zeppelin Games 4 Game Pack - No 2 Atlantis 4 Most Cute Alternative So…
... Alternative Software Ltd
a,b,c... Lift-Off Longman Software< ... Rabbit Software
From Out of a Dark Night Sky Zenobi ... /> German Master, The - Level A Kosmos Software
Ghostbusters Activision ... 3 Virgin Games
Out of the Shadows Mizar Computing ...Sound mod for AY audio chipsHi again. This is a repost. I posted it in the misc forum a while back but it definitely should be in here. I was totally pissed off with the crap…
... to sort that out.
Its a passive mixer and ... gives amazing sound quality (not a hiss, crackle or pop ... The audio output is channel A+C on the left side and ... B+C on the right side. ... It makes quite a nice effect on my speccy ...
