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Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... t need to use 'position_var' since you can keep the screen address directly ... de),a ; Write to screen
inc d ; Point to next line down ...
inc l ; Point to next byte of source tile ... hl ; HL now points to next address in tile table, store ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... about will perhaps be to change the address table so I can ... by roughly 3% is worth to waste few hundreds bytes. anyway ... . not saying it is worth to do so in most cases ... background is copied to screen and sprites are put directly to screen. so next ... -
line, plot and circle in whole 256x192 displayhi! are there some way to draw lines, or whatever, in the whole 256x192 display, than just the above 256x176 part? (this is the msx1 version i made o…
... /> ;--The coords are used to calculate the screen address ------------
;See 'Ian ... LD H,B ;now HL = screen addr
AND %00000111 ;now ... /> LD (HL),A ;move to screen
POP HL ;coords
Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…
... to short out the required connections I had LOAD "" up on screen ... ,0 ;Cycle each address to hold valeus from 255 to 0.
buc1 ... .
inc hl ;next address to try
ld a,h< ...Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…
... interfacing stuff (read controls, write to screen, make sounds...).[/quote]
... registers and converts them to the equivalent AY note ... the time (or need) to scan the attribute map each frame -- ... br />
Compare that to my Space Invaders 'emulator' (I ...Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... , then while the loading screen comes in from tape you ... see how memory locations correspond to screen location:
First ... ) with attributes, where each attribute byte sets colors for a ... ZX Spectrum screen.
If you listen to tape sounds ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... de = current sprite graphic definition address (point to GGGGGGGG)
... to screen somehow maybe like this
; exx ; hl = current screen address ... MSB of the table address to use must be ... you fixing the screen address to write to by moving down ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... the DE to hold the address of where on the screen I want ... the sprite to appear ... ....I'm taking the address on screen and moving to the next byte ... DE is holding the wrong screen address....it's
;holding one ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... you draw you sprite to screen at column 14 with ... writing the data to screen. The particular table to use depended ... in characters
; hl' = screen address
; b' = pixel y ... to screen somehow maybe like this
; exx ; hl = current screen address ...Arkanoid Hack - Your Sinclair Smash TipsRemember that Arkanoid hack in YS Smash Tips that didn't work? It does now... [CODE] 10 REM ARKANOID HACK 20 CLEAR 65535: LET C=1: LET D=23295 …
... dcbuff equ $61a8 ; address to copy decrypter to
;
loader ... address
ld de,dcbuff ; copy decrypter to
ldir ; screen ... pop hl ; restore decrypter address
pop bc ; ... add together for next decrypter address
pop bc ; ...Tool for saving prog op codes in one neat column?[deleted]
... memory dump to screen or printer for a selected address range, with ... a print width from one to sixteen ... End? (hex) "2950"
Print address? [hdn] "n"
Bytes per ... /> Checksum? [hdn] "n"
Screen or Printer? [sp] "s"
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... destination screen address and you need cpu cycles to compute the next screen address to draw to ... that data is copied to screen, the destination screen address is retrieved from the ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... destination screen address and you need cpu cycles to compute the next screen address to draw to ... that data is copied to screen, the destination screen address is retrieved from the ...Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... ]Using PUSH to write into the screen is faster ... or the other memory address to allow for the fact ... different directions. You have to make the decision which ... keep adjusting the source address. If you're writing ... -by-line down the screen, you may collide with ...Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…
... put org address to 40000 or 44000, it returns HL in attribute area ... entering at the original ROM address you've been using. ... />
[quote]is org address really that important? I thought ... stack.[/QUOTE]
The address generally doesn't matter, and ...Is there a limit to the numberof variables you can have in BASIC..... Reason I ask is I've got an idea....but using my "lowest common denominator" approach to code I fear that I'…
... you the top left attribute on the screen in a, which you ... being from 0 to 31, 0 being left of screen, and 31 ... being from 0 to 23, 0 being top of screen and 23 ... you revert the player back to it's old XY position ...Is there a limit to the numberof variables you can have in BASIC..... Reason I ask is I've got an idea....but using my "lowest common denominator" approach to code I fear that I'…
... you the top left attribute on the screen in a, which you ... being from 0 to 31, 0 being left of screen, and 31 ... being from 0 to 23, 0 being top of screen and 23 ... - so.....colour can be used to check this stuff :lol: did ...4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... /> If you suspect the address not being registered properly, then ... operation of your circuit to allow the address to stabilise etc.[/QUOTE]< ... the diagram around the first attribute read and into the ... use SRAM with a longer address to data output delay.
...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]…
... ;
[*] Fill the regular screen attributes (corresponding to multicolor area) with zero ... the multicolor area to start with a clear screen;
[*] Now spend ... more feasible, reserving certain attribute values to be replaced when drawing (thus ...Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... uses this variable to switch back to the previous state, ... main screen.
Bank: or 0 ;POKE to Bank+1 address to change ... which RAM bank to write to
... A,#10 ;ROM1, RAM0, main screen.
ld BC, #7FFD ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... my two cents - a clear screen (pixels only) based on setting ... [B]OR (IX+0)[/B] to [B]AND (IX+0)[/B ... 't it actually fill the screen rather than clear? It does ... the screen. Maybe there could be a nice attribute fade-to-black effect to ...Spellbound 48k issues with ToastrackIve been busy converting a lot of games to +D disk, everything was going smoothly until I tried Spellbound, loading in 48k mode on the toaster it res…
... under 128 Basic as the SCREEN$ is slightly too long and ... does a headerless load equivalent to LOAD ""CODE 26064,39470< ... trying). You did remember to modify the USR address to avoid the "Hello ... RANDOMIZE USR routine to the wrong address. The real address is USR ...3D Deathchase on the Commodore 643D Deathchase has been ported to the C64, at least according to Micro-Mart. According to this week's MM, the port is called Hell Racer, and here's a …
... bytes of that space assigned to screen and colour RAM at start ... and two 1,000 byte attribute areas so C16 games using ... 's possible to get all 121 colours onto the screen in character ... to people playing games) and offers an 80 column 16 colour attribute ...Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …
... store/restore (more important to restore) attribute values to the 22528 area.
I am only wanting to ... AT 0,0 to 16,16 area of screen, 256 bytes I ... 16 bytes from the buffer to the screen
ldi
ldi ...What if there was no memory or space limitation?What if there was no memory or space limitation? We've had topics about the limitations of the Speccy's hardware, topics where we discussed how good …
... (15 characters), a street address (40 characters), a city ... So I have to treat that address as an offset in ... print_string:
;; print string at address hl
....
ret< ... to call the print_string function to print a string to screen. The address ...Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…
... next colour in a cycle to each attribute square).
... subroutine (splib2 is the predecessor to sp1).
... directly loads the sprite bytes to screen without background mixing. The ... some graphics for the last screen already ripped, post a ...Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…
... next colour in a cycle to each attribute square).
... subroutine (splib2 is the predecessor to sp1).
... directly loads the sprite bytes to screen without background mixing. The ... some graphics for the last screen already ripped, post a ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
... attribute byte to 0. i used SEED basic variable to pass address to ... call this routine as randomize address: randomize usr 32768.
ld hl,(23670) ; randomize address: randomize usr 32768
attribute bytes
ld c ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
[QUOTE=zxbruno;627079]Yes, whole screen. I don't know what ... /> ld (hl),4*8 ;default attribute
inc hl
inc ... />
it scrolls whole attribute area to the left with filling right ...Outrun Europa - In colourAre there any coder's willing to see if we can put the colour into this game as originally intended?
... it still executes all attribute routines. It moves ... to screen, just in the last moment it substitutes the already read attribute ... some flashing attribute into playing area screen attribute memory. And ... break into debugger when screen memory is overwritten.
