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RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... is added to the base
; address to give the ... br /> ; convert the row to the base screen address
ld a ... to the first byte of the screen address
; C holds the offset to ... ; DE points to the first byte of the screen address
SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... offset is added to the base
; address to give the correct location ... /> ld (chrad), hl ; screen and calculate the address in the
ld ... position, place it on the screen
and a ; one byte ...Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…
... />
[quote]
Spud screen display now runs nearly as ... .
Spud draws to the buffer on every write_byte ... the buffer was written to up to the current t_state, this ... t-states to screen addresses, one more that maps t-states to attribute cells ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... loc_A1CC:
; go to the next screen line
; A ... contains the offset into the line address ...
; HL now holds screen$ address
byte_A1D8:
db ... /> ld sp,hl ; put screen address to SP
exx
...Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... - plot double sized character on screen
; input - h ... br /> ; **********************************
; xy coords to screen pixel position
; **********************************
... and %11100000 ; 7t - convert to screen address
add a,l ; ...Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... br />
I needed to use [URL="http://realterm.sourceforge ... /"]Realterm[/URL] (free download) to get the two machines communicating ... br />
Set Realterm to the following parameters. These will ... code
1030 SAVE *"b"SCREEN$ [COLOR="Red"]- or LOAD, ...New game! Nanako in CJMC for ZX81!Yup, that's true. We've been busy in crafting a nice, small, simple library to code games in text mode (this is, standard, unexpanded) for the 16K ZX…
... simple hardware hack) to use WRX to do hires. If ... needs that the data to be output to screen lies below $4000 ... . That's why you need to ... bit combinations in ROM to use them, that's ... configure the RAM to load at any address. The ZXpand ...Loader help please (and a suggestion)I posted in my "Wicker Woman" thread that I was having problems creating a loader, but I think this is a more appropriate place to post. I've had go…
... 're both POKEing the same address. The POKE (PEEK 23631+256 ... S output routine address to point to 096F (a RET), disabling screen output. The ...Loader help please (and a suggestion)I posted in my "Wicker Woman" thread that I was having problems creating a loader, but I think this is a more appropriate place to post. I've had go…
... re both POKEing the same address. The POKE (PEEK ... output routine address to point to 096F (a RET), disabling screen output. The ... trying to disable the loading codes printing over the loading screen, ... br /> There is a POKE to disable the BREAK key altogether ...GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... is added to the base
; address to give the ... br /> ; convert the row to the base screen address
ld a ... to the first byte of the screen address
; C holds the offset to ... ; DE points to the first byte of the screen address
CrusoeI'm making slow progress in mapping & debugging this game, having to restart several times due to various unfortunate events. The latest was getting …
... picked up both the screen display and attribute map are updated. When ... table at $6E00 which maps attribute codes to handling routines.)
to complete. There might be ... that it had been possible to collect extra mushrooms at ...Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…
... 0 to 28, in your case), and translating it to a screen address when ... you need to draw it, is ... ,23232 ; address of start of screen line
ADD HL,DE ; address to draw ...What's that poke again?Can any of you kind souls remind me of that poke that stops the header info "Bytes: whatever" buggering up the loading screen of a game?
... ,111 changes the output routine address to jump to a RET, thus stopping ... the general approach is to note the address of the S channel ... ) to disable screen output, then restore the original address when screen output is to be ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... or what a suitable base address would be or whether that ... errors if the 64032 base address is used. I expect that ... the program adjusts the base address from screen to screen, as they wouldn't ... have left the final screen with ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... intro screen (changing them to $F999), the screen displays correctly, but that address is ... would have to be altered dynamically to move down the base address to $F999 ... when it was handling the intro screen (which ...Creating a Demo with TommyGunSome of you may have caught the thread in 'new game ideas' concerning Super Stick Man (a title that WILL eventually change due to how the graphics ha…
... area wraps, can be off screen)
ld bc,-20 ... sp1_MoveSprPix ; move sprite to absolute pixel address, other movements avail ... />
; all changes to screen accumulate but no drawing is ...
call sp1_UpdateNow ; draw screen now
[/code]
...Creating a Demo with TommyGunSome of you may have caught the thread in 'new game ideas' concerning Super Stick Man (a title that WILL eventually change due to how the graphics ha…
... area wraps, can be off screen)
ld bc,-20 ... sp1_MoveSprPix ; move sprite to absolute pixel address, other movements avail ... />
; all changes to screen accumulate but no drawing is ...
call sp1_UpdateNow ; draw screen now
[/code]
...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... -----------------------------------------------------------------------------
org 64861 ; any address will do but this is ... write result back to screen
inc d ; next screen location
...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... $40 ; add the base address of screen.
L0EAA: LD H ... number (stored in A) to the corresponding screen address (stored in HL). ... write result back to screen
inc d ; next screen location
inc ...New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... months ago now) was to try a multi screen platformer, but I ... bring a bit more life to the screen.
[I]# ... using stack for reading pointer to screen is quite waste. anyway, ... 2 ways to get the pointer to the screen from my screen address table (not ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... ; write result back to screen
inc d ; next screen location
inc ... it was possible to attach stream #4 directly to address CH_DATA (instead of ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... -----------------------------------------------------------------------------
org 64872 ; any address will do but this is ... write result back to screen
inc d ; next screen location
...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... -----------------------------------------------------------------------------
org 64872 ; any address will do but this is ... write result back to screen
inc d ; next screen location
...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... byte of the sprite pasted to screen, you only check maybe ... on screen and carry on...
Perhaps to make ... to step 5, ELSE:
Check attribute colour data at screen byte ... to be using a screen switching method, so checking to see if the screen ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... jpg[/img]
The screen features all the sprites present ... sprite area covered with an attribute value with the same ... only had to poke to the right addresses in the attribute memory to change ... br />
For menus, title screen, etc, I can even write ...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…
... (I've included a screen address table in txt format and ... br /> ld (hl),a ; Write to screen (7)
inc ... /> ld sp,scrntab ; Point SP to address table
ld ...
scrntab defw 16384 ;screen address table
defw 16640
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…
... I think it's possible to do it. I anybody knows ... /> I have a few suggestions to improve the 'draw_tile_line' routine, if ...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…
... need to use 'position_var' since you can keep the screen address ... a ; Write to screen
inc d ; Point to next line down ... ; Restore DE and point to next print position
... ; HL now points to next address in tile table, store ...
