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Using ATTR detection in machine codeIs there a ROM routine that can be called that reads the ATTR value of a co-ordinate?
Is there a ROM routine that can be called that reads the ATTR value of a co-ordinate? -
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…
... un-bright background i.e. ATTR value 1 but simply will not ... a,b ;load a with value of b
dec a ... /> ret
av1 defb 0 ;attr co-ord vals
defb ... /> defb 0
attr LD A, (rx1) ;calculate ATTR
LD (av1 ... -
My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... HL has position of new attr value
LDI move attribute from ... /> TABLE:
DB $00 Attribute value 0 -> 0
DB ... -
My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... HL has position of new attr value
LDI move attribute from ... /> TABLE:
DB $00 Attribute value 0 -> 0
DB ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... ) is based on 'u', the ATTR value of the biscuit. So, we ... biscuits, which will have an ATTR value of 3. (Also change 'IF ... -
Questions about the Speccy and it's emulationOut of interest, and to raise another interesting discussion, I have some questions about the Spectrum and it's emulation; 1) Is everything known ab…
... screen with a known attribute (ATTR) value, and then use an ... comparing the result to that ATTR value, exiting the loop when ... only when the value is found.
... those systems, never reading the ATTR value that would allow exiting from ... -
screen$ out ?I've converted something via a scan and dithered it/saved out as a png in 7-up.. It'll load into 7-up , but I can't export it as a screen$ .. and …
... right part of the screen, Attr value will be over 128 and ... -
Using ATTR detection in machine codeIs there a ROM routine that can be called that reads the ATTR value of a co-ordinate?
... be called that reads the ATTR value of a co-ordinate?[/QUOTE ... -
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... explain that Gloryv2 has inverted ATTR, is that like an INK ... complement (CPL) of the 3bit ATTR value?[/QUOTE]
It was 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…
... bright background i.e. ATTR value 1 but simply will not ... ,b ;load a with value of b
dec ...
av1 defb 0 ;attr co-ord vals
defb ... defb 0
attr LD A, (rx1) ;calculate ATTR
LD ( ... first: i cant see call attr
second: check bold ... -
Tile routinesHi all, Please does anyone have any examples of tile routines in pure asm to set up maptile screens. I would like to try and understand them and ti…
... this code to get the attr address.
note: it ... /> I then get the colour attr value from my tile definition and ... -
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. …
... , (byteloop)
; hl = attr memory address
; a = attr value to poke
attr value
pabm_loop:
ld (hl ... /> call get_attr_address
; return attr from attr address
ld b, 0 ... -
LgK image compressorOk people, i decided to make it proper thread since i've finally got something tested & useful for everyone. Here is my "chunky" ZX image compressor …
... ) or just load the new attr value from the bitstream (or small ... former action (not the former attr!) is coded with one bit ... -
Simple Spectrum Character Creator Web AppHey guys, Here is a simple web app i wrote to create ZX Spectrum 8 x 8 characters: http://www.amelyn.com/speccy_character_builder/index.htm …
... that you can append the ATTR value for the character to the ... -
Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... ------------------------------------------------------------------------------
; Calculate the ATTR area starting address of X ... a,(ATTR)
ld c,a ; ATTR value to ... /> ; Store C = ATTR value
... -
[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…
... ,$5b00
ld hl,$3838 ;ATTR value
ld b,192
ld hl,$aaaa ;screen fill value
;B is now 0 ... -
New game, LAFIX III'd like to announce my newly developed game, LAFIX II. The url is [url="https://simonsnake.itch.io/lafix-ii"]here[/url]. It is a puzzle game bas…
... squares that have a particular ATTR value), each line of each sprite ... -
BASin Release 6 available for DownloadHi all - It's another cut'n'paste from CSS :) I've been tapping away again, and seeing as a couple of people have recently seen BASin's latest bits…
... edit boxes that expect a value from the user can accept ... expression (including such stuff as ATTR). Any that require a string ... -
Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
... .exe and start playing with attr scrolling, well, not scrolling, just ... block of memory with 1 value ?
I came up ... -
Key press to ASCII valueI need a bit of code that will give me an ASCII value when the key is pressed. I only really need a-z. I tried using the following code but it only s…
... will give me an ASCII value when the key is pressed ... -
TZX Hardware Type value errorsIn the Turtles Coinop TZX there is a Hardware Type block that has a number of hardware values of 04 and one of 49! The TZX spec states that the value…
... least significant bits of the value or are there values not ... -
finding largest value (z80 assembly)suppose we have to write z80 program which requires to find the biggest value in a block of memory starts from the address 101h until address stored …
... requires to find the biggest value in a block of memory ... in 100h),then put this value in address 200h
Value for money?As part of the misses christmas present I bought her "Professor Layton and the Curious Village" on the DS. This was after she had seen it advertised …
What games have collector's value?I've got boxes of games (primarily for the ZX Spectrum 16K/48K), original and some look like they have never been used. Honestly I have always been m…
... akward or have collector's value. I got for example a ...Speeding up select processing...Hi Folks, I have the following code in my program and it works fine but is rather "sluggish". I have even moved it to the beginning of the program …
... =a variable that has a value of 1.
[*]attrp=a ... has the address of the ATTR P system variable.
[/LIST ... /> [B]Line 270 [/B]- sets ATTR P to bright yellow paper ... current time. If the second value equals 1 then it branches ...BASIC: Find the nearestHello guys) A few days ago I found oldie ?Jeux et casse-tete a Programmer? by Jacques Arsac (Paris?85) and suggested my nephew to try a few in Basic…
... a flower he gains its value.
The opponents cannot ... random position with a random value.
Each turn the ... random position with a random value.
UNTIL (turns>40 ... ) or (gained value>99)
Everything ...R.I.P Tesco's ValueAccording to the BBC the brand is being phased out and replaced with wait for it... 'Everyday Value'. [url]http://www.bbc.co.uk/news/magazine-176228…
According to the BBC the brand is being phased out and replaced with wait for it... 'Everyday Value'.
[url]http://www.bbc.co.uk/news/magazine-17622856[/url]Multiply the value of 'a' by 5Is there a way of multiplying the value of 'a' by 5? I've tried 'add a,a' etc. but only get multiples of 2...
Is there a way of multiplying the value of 'a' by 5?
I've tried 'add a,a' etc. but only get multiples of 2...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... fo about printing a numerical value using the print routine in ... /> For instance I have a value 0-255 and want to ... like to times the original value(0-255) by 100 before ...
