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question about RST 10hhow do you set the position of the text when using 'RST 10h' to print to screen?
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... /> [/code]
The first line above is a prototype; after ... the element m[0]. The next line adds 1 to the address ... an integer. However the following line "*v = 10;" is illegal because ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... number generators actually calculate the next random number from the previous ... to move down one scan line
void d_PrintDoubleW( ... won't wrap to the next line). 2- the scroll routine ... new destination address for the next pixel row.
...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... // compute initial print position of line
if ( ...
// print chars in line
while (*s ... }
}
// get next line in string
++prow ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... calculates the address of the next line down the screen. You should ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... address of start of character line
oneLineLoop
; Move on to the next screen line.
; Alternatively could get ... out the address of the next line
; This is ... need to move to the next block.
...Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... /> inc h ;Go to next line.
cp 7 ;Have ... 32 ;Perform jump to next char boundary
add ... ;increment h to pixel line aligned address
dec ...Help!!!i had to re boot my computer recently and now i keep getting a message saying somthing about a generic host and win 32 problem.Please could anyone h…
... .\svhost.exe.mdmp
next line is the same but at ...New Spectrum game - On Reflection"On Reflection" has been my pet project for the last two years or so. My initial idea was to try to create a Spectrum adventure which was a bit more …
... punctuation mark on a new line when it follows a colour ... at the begining of the next line. No solution (save shortening the ...help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... to right hand end of next line to be copied
... to
dec c ;next line up
ld a, ... next line through a char
add hl, de ;goto next line ... to the next line up
sub 7 ;next line up is ... to the next line up
sub 7 ;next line up is ...IF2 Rom snapshot creationHi, is it possible convert a Speccy 16k snapshot to a Interface 2 Rom file? I've the original Ultimate Pssst, Cookie, Trans-am and Jetpac tapes and …
... as it just LOAD"" the next game).
... LD E,(HL) ;get line number into DE
INC ... LD B,(HL) ;get line length into BC
INC ... br /> CALL prmsg
DEFM "Line"
DEFB ' '+$80
line reached
JR newline ;do next line in ...Start Tape, Press any key...Hi, I'd like be able to save (program or data or code) using the save "whatever" command, but I want it to start recording immediately, rather than …
... the program moves to the next line. If it doesn't work ...which is the best?Hello, Since RealX is not coming out in the near times (realSpectrum was my favorite emulator) Can anyone point me a good one to replace it??? Som…
... that sometimes is on the next line under the zxspin bit lol ...Changing the way SCREEN$ is loadedThe way the speccy loads in a SCREEN$ is interesting - top two-thirds first, then middle and finally the bottom, which is due to the way the speccy d…
... understand how to draw line by line first. Its my ... 224 bytes to next line
nextline: inc hl ; next screen address< ... nz, nextline ; continue if hl = next line
push bc ... jr nz, screenaddress ; draw next character line if not
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... (they will be filled with next PUSH anyway). So, you must ... (hl),d
inc h ;next line of screen
pop de ... (hl),e
inc h ;next line[/code]Screen access in assemblerI am again troubled by the unusal screen design of the Spectrum. :) If I want to do something with, say, a 16x16 bit block of the screen (in the sam…
... is needed to test the next characterline ( like the PRINT AT ... = H=64, L=0
Next pixel line = H =65, L=0 ... , L=0
Then the next line is H=64, L = 32 ... that you are on the next line
then you need to ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... INC IX
DJNZ InversionFill0 ; Next Pattern
JP StartPass ;Next Pass
... Does not support wrapping onto next line
; Aways prints ... DE ; next line of char
INC H ; next line on screen ...Hi-colour gamesDoes anyone remember some of the games that used something called Ho-colour? Like the options page on the Agent X games, and a few others. If memory …
... :
I output a line of pure blue at the ... red. The ULA draws the next line below the last one as ...CronosoftIt's a bit of bad news, but I'm sorry to say that I'm probably closing up the Cronosoft label. I'm struggling financially at the moment, and Cronoso…
Looks good, but on my Firefox things like 'Spectrum 48K' and 'Amstrad CPC 464' in the Categories word-wraps the '48K' and '464' part onto the next line, which looks odd.Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…
... ;vram
ld bc,#ff90 ;next char
...
ld sp ... de
push ix
... next line
push bc
ld ... ,gfx2
push de
.. next line
ld d,e
Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…
... bigger/smaller) line goes straight into the next, just add ... whatever) to get to the next line.
This ... out. Store it line by line, which makes the ...
Then, copy each line of the screen buffer to ... a register for each line. Just remember not to ...Crashable Spectrum games?Following the discussion at: [url]http://www.worldofspectrum.org/forums/showthread.php?t=24821[/url] I was wondering what Spectrum games could be m…
... 'll display it on the next line" - scroll - "oh, this won't ... on this line, I'll display it on the next line" - scroll ... ad ...River Raid Tech DemoJust a little something to look at. Enjoy. [URL="http://www.joefish.co.uk/speccy/Joefish_River_Raid_Tech_Demo_01.tap"]Joefish_River_Raid_Tech_Demo_…
... -writes the attributes on each line of the screen as the ... drawing the image. So, one line of the image is drawn ... it comes to draw the next line the attributes have changed so ... colour to match on that line too (this is why it ...Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
With the rainbowprogram as source I want to change colours every 4th line, but without setting the colours in line 2,3 and 4.
So I set the first line, wait 3 * 224t states and try to redraw the next line. Why isn't this working???Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
... to change colours every 4th line, but without setting the colours ... in line 2,3 and 4.
next line. Why isn't this working ...BIN shorter than NOT PI?Some time ago I checked many loaders and want to ask why coders are using BIN and not NOT PI? NOT PI is only 2 Bytes, BIN would be better if it would…
... Spectrum BASIC will accept the line:
[B][U]10 ... worse in terms of of line length, than the standard:
The Line 20 displays the adress of next line in program
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... automatically be reflected on the next line of the border, and apply ... border colour multiple times per line.
Either way, being ...More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... automatically be reflected on the next line of the border, and apply ... border colour multiple times per line.
Either way, being ...
