-
Keyboard Issues When Setting Border ColourWelcome to the next in my series of inane 'Z80 on the Spectrum' questions! ;) Here's a minimal snippet of code for polling the keyboard until any ke…
... NOKEY: LD A,0
IN A,($FE)
CPL
change the border colour (to black in this case), thus ... /> LD A,0
OUT ($FE),A[/CODE]
< ...
LD A,0
OUT ($FE),A
NOKEY ... port $FE is being used in both cases, but (from ... -
Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…
... I go about writing a MC routine which calculates the attribute ... .
I know you in basic you multiply the vertical ... />
Struggling to do it in MC! -
Border colour on resetI have noticed a strange (and somewhat disquieting) glitch or feature on the ZX Spectrum. Sometimes, when the Reset button is pressed on the later m…
... machines (128 onwards), the border colour will change to white before resetting to ... menu (and white border) suddenly appear, but this border colour glitch/feature is ... -
whats your second favourite retro computerOk i'm going to assume that for most of us here the speccy is our favourite number 1 retro computer,its the best home computer in the world etc etc :…
... you can change border colour with a simple out command, and paper colour with a ... needed to draw a circle in machine code? Hardly a ... />
When you are starting out in programming - that's when you ... to change paper colour once, then just re-use it in all ... -
whats your second favourite retro computerOk i'm going to assume that for most of us here the speccy is our favourite number 1 retro computer,its the best home computer in the world etc etc :…
... /> ...you can change border colour with a simple out command, and paper colour with a ... the attribute area do they? In fact, the theory behind the ... odds with what was learnt in BASIC. Commodore BASIC sucks, ... :
You are restricted in what you can do.
About z88dk and autoexecsThis weekend I was playing a little with z88dk C cross Compiler. Amazing tool! I have three questions: 1- Does anybody know how to change the initia…
... and error will work things out.
Incidentally, ... in your C function. Eg, to change border colour:
[code]
void border ... /> ld a,(hl)
out ($fe),a
#endasm ... down in memory (think in terms of pushes) to figure out ...Can you write in the border?Is it at all technically possible in any way to get stuff into the border, apart from changing the border colour? I believe the C64 used the border a…
... messages in the border.
The only way to change the border colour is ... with an OUT (nn),A or ... 12 T-states respectively. In the upper border, each character width (=8 ...Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…
... Does the Spectrum actually output border colour in those extra 8 lines or ... an OUT $FE during the display time, the border will change. Whether ... overscan settings is irrelevant. The border will change.
I ... and I'm bowing out of this discussion as you ...What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... to the programmer is stripped out - this includes label names, and ... I]paradigm shift[/I][/B] in computer programming between to 80s ... ]
; PRINT A MESSAGE THEN CHANGE BORDER COLOUR LOTS OF TIMES
;
in that example or [i]why ...Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …
... routines in sound.h so that they don't change the BORDER colour.
I found out through monitoring ... used it in my game to set the black border, and ... variable and have a black border in the game. The default ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... ,.read_edge_loop ; loop if no change
bit 0,a ... next time
border ; put border colour in accumulator
or ... /> jr .exit ; bail straight out
;; reads ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... BREAK/SPACE is pressed, bails out to .exit with
... ,.read_edge_loop ; loop if no change (12T/7T)
bit ... ;; and 7 7T
border ; put border colour in accumulator
or 8 ; ...The 20th comp.sys.sinclair Crap Games Competition thread!Hi all, [SIZE="7"][B][CENTER]ANNOUNCEMENT![/CENTER][/B][/SIZE] The comp.sys.sinclair Crap Games Competition 2015 is now well and truly OPEN! [url]…
... 10 PAUSE 1: BORDER 0: BORDER 0: BORDER 0: BORDER 6: BORDER 0: GOTO 10 ... NOT PEEK AT TAN LINE IN BORDER"[/QUOTE]
[IMG ... it takes BASIC to simply change border colour, but then again I suppose ... whole ROM disassembly and find out exactly what's going ...Z88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…
...
To change border colour you can use "zx_border(INK_BLUE ... using the display address manipulators in C.
... the source in the libsrc directory to find out how ... explanation, they omit the details in their manual.
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…
... sdcc version comes out 600 bytes shorter. ... 20}; // full screen minus border
struct sp1_Rect levelbrect ... // signed horizontal speed in pixels
unsigned ... dy; // signed vertical speed in pixels
};
...Beginner's z88dk help rqdI'm struggling to get my first z88dk C program to compile. My program is this: #include <spectrum.h> int main() { zx_border(INK_BLACK); } …
... .asm") and generate object files out of them. It knows how ... to change border colour. The reason is z88dk will record the last border colour written ... don't change the border colour when audio is generated.
In the ...Use of INPUT in MCI want to use the INPUT-command in MC and made the following code. [code] org 40000 dump 40000 ld hl,(#5c5d) push hl …
... to use the INPUT-command in MC and made the following code ... knows how to use this in MC?IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... to get my head around IN and OUT. The books all go ... to PEEKing and POKEing? IN and OUT seem to be related to ...A doubt about IN and OUTIN (and OUT) can use bc to define a 16 bit port to be read or write, when used as in r,(c) or out (c),r. Also, if you use in a,(n) or out (n),a yo…
IN (and OUT) can use bc to define ... write, when used as in r,(c) or out (c),r.
Also, if you use in a ... ,(n) or out (n),a you use ...Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…
... a custom loader to stick in your own program.
[/quote ... jumps.
3) Change timing constants.
4) Change border colour code.
splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…
... deal, I can do the out 254,0 myself), sp_AddMemory, sp_CreateSpr ... can do your own OUT to set border colour. Or you can modify ... Border Colour
;
; Stores border colour in variable SPBorderClr.
; In hi-res mode, the "border colour ...Keyboard Input$/scan problemHi, I'm finally fulfilling my promise to get a reasonable understanding of the Speccy and embarking upon attempting a few simple routines in Assembl…
... using BASin (with built in assember) is as follows:< ... /> ; Read from port BFFEh
IN A, (C)
; ... br />
; Set border colour (0..7)
OUT (254), A
< ...
Loop:
IN A, (C)
AND ...More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... , changing the border colour with an out FEh will load the border colour from the ... paper and store in output registers. Every time the border colour is changed ... and store in the border output register. As access to the border colour port ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... 14, while the border colour in fact is stored in 3 bits only. The ... the "OUT (254),A" command is not only setting the border colour, but ... , I succeeded in nullifying the OUT (254),x commands in ROM. The slideshow ...Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... />
The colour of the border is an important clue ... the register for the border colour in the ULA starts with a ... command to set the border colour to white. So if ... />
If the border is not set to white ... never done this, shout out and I will post some ...Beepola v1.08 AvailableA new version of Beepoa, v1.08, is now available for download from:- [url]http://freestuff.grok.co.uk/beepola/[/url] (1.76MB zipped exe, no installe…
... code. Now it can sit in ROM
* It uses ... means sound output does not change border colour.
* For systems with ... apologize for the fonts and colour selection. It is even giving ... , not to look pretty but in the process maybe I'm ...Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... or Capacitor?, I'm running out of ideas on what could ... =1024MAK;760971]
The colour of the border is an important clue ... 48k, the register for the border colour in the ULA starts with a ... a command to set the border colour to white. So if the ...Fuse for Mac OS X 1.0.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... /> [*] Support weak data in +3 disk images (Gergely ... [*] Enable Beta 128 interface in 48K and TC2048 machines ( ... Pentagon 1024SL v2.2 16 colour mode (Fredrick Meunier).
... Szasz).
[*] Fix border colour in Timex HiRes screenshots (Fredrick Meunier ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
Here is the current version of othello-pvp:-
othello-pvp3:-
[url]http://www.mediafire.com/?amycy2a5yx0[/url]
Added all of Einar's and Dr. BEEP's optimisations.
It's now 40 characters under the limit.
