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How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... ; Calls a routine to clear the screen
ld a ... 3503 ; Calls a routine to clear the screen
... br /> call 5633 ;open channel to screen (top 22 lines)
... eostr-dat ; length of string to print
call 8252 ... -
How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
...
call 5633 ;open channel to screen (top 22 lines)
ld ... [/I][/B] ; length of string to print **
call 8252 ; ... couple of discrepancies that sprung to the eyeballs... Lines marked with ... trying to see if it's reached the bottom of the screen? -
How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... br /> call 5633 ;open channel to screen (top 22 lines)
ld ... [/I][/B] ; length of string to print **
call 8252 ; ... couple of discrepancies that sprung to the eyeballs... Lines marked ... trying to see if it's reached the bottom of the screen ... -
Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…
... I have text printed to the screen though so I'd prefer ... that to be printed to the ... br /> call 5633 ; open channel to screen (top 22 lines)
ld ... need your own procedure to print on virtual screen
something like this ... -
From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…
... 4.9 seconds (including the print) (note that the two ... LET o=1
17 PRINT "POKING TEST DATA."
... 20 FOR n=maddr TO maddr+159: POKE n,o ... BEGINS HERE
32 PRINT "BUILDING SCREEN"
35 LET tick1 ... addr+159: FOR n=addr TO eaddr: LET o$=o$+ ... -
From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…
... 4.9 seconds (including the print) (note that the two ... /> 20 FOR n=maddr TO maddr+159: POKE n,o ... BEGINS HERE
32 PRINT "BUILDING SCREEN"
35 LET tick1 ... +159: FOR n=addr TO eaddr: LET o$=o$+ ... 23672)/50
80 PRINT tick2-tick1[/code][/QUOTE]
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…
... polomint's code to make it easier to understand (probably doesn ... different routine that will print a screen of 2x2 tiles. It ... ld (tile_x),a ; column back to zero
ld a,(tile_y ... b,8 ; 8 pixel lines to print
print_character:
...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... instruction to save the screen to background or foreground
any subsequent writes to screen ... : this instruction sends writes to screen directly to the propeller chip jumping past ... has writen to the display file in both the print character routine ...Frontend for the +3e projectHi, I have recently finished building the 8-bit simple interface and installed the +3e ROMs into my spectrum +2A (Back model) and it is working fine …
... . Then when you come to print the filenames to screen, or launch the snapshot ... assume you're going to want to print out a screenful of filenames ... element (n) corresponds to the numbers on the screen.
... FOR n = 0 TO 9
1020 PRINT AT n,0; n ...Frontend for the +3e projectHi, I have recently finished building the 8-bit simple interface and installed the +3e ROMs into my spectrum +2A (Back model) and it is working fine …
... . Then when you come to print the filenames to screen, or launch the snapshot ... assume you're going to want to print out a screenful of filenames ... element (n) corresponds to the numbers on the screen.
... FOR n = 0 TO 9
1020 PRINT AT n,0; n ...Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
I'd imagine it was to maintain consistency with the ability to only print to the top 22 lines of the screen.
Presumably it was just forgotten to add the same restriction to SCREEN$.
BWhy no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... it was to maintain consistency with the ability to only print to the top ... 22 lines of the screen.
to add the same restriction to SCREEN$.
B ...Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... the main window is limited to 22 lines. You can make ... if you want and just print to that. However, the lower window ... . You will see a full screen board without bordersettings.
The ... with a MC routine of PRINT AT, only using RST 16 ...Double Buffer UtilityHi Folks, I've been experimenting with double buffering on a 48k Speccy for a small project I'm working on. After reading lots of good advice here…
... copy the whole buffer to the screen it's a waste ... [code]
#Class to implement printBehaviour by printing to screen
class ScreenPrintBehaviour ... :
def doPrint(self,text):
print ...Why on earth did I buy...Couldn't see a topic for this, so apologies if it does exist. Aside from games, what did you buy, and put away in a draw the next (or same!) day - …
... Forth is designed so as to need the simplest compiler you ... a handful of assembly instructions to mostly PUSH and POP ... crude integer maths libraries, sprite print and screen scroll functions.
< ... all, not allowing you to review and alter previously defined ...Why on earth did I buy...Couldn't see a topic for this, so apologies if it does exist. Aside from games, what did you buy, and put away in a draw the next (or same!) day - …
... Forth is designed so as to need the simplest compiler you ... a handful of assembly instructions to mostly PUSH and POP ... crude integer maths libraries, sprite print and screen scroll functions.
< ... all, not allowing you to review and alter previously defined ...Help with Assembly - DEFB, etc.Dear all, I'm going through Jnathan Cauldwell's tutorial and find myself scratching my head at part I can't find a decent explanation of anywhere! E…
... that code isn't drawn to screen and data aren't executed ... /> [CODE] ld a,2 ; upper screen
call 5633 ; open channel ... ; length of string to print
call 8252 ; print our string
...Simple text scrolling routine...I'm having trouble writing a very simple text scroller, the idea is to use the ROM printer routine to print 32 characters each time the routine is ca…
never never never print one letter.
scroll looks ...
screen_adr equ #401f;screen adress for output
scroll ... stores in buffer and outputs to screen
like here:
[url ...Megatree DevelopmentHi All, I have been messing around with developing a concept for the unwritten game Megatree. Here is a video of what I have so far written on a 48…
... objects move all over the screen and in front of and ... make it so the sprites print to the screen buffer before the large ... because the sprites are printed to the buffer before the tree ... collisions to happen. Then the whole lot is copied to the visible screen.FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... [/B]
Print one char to screen using the fzx_state ... given (holds window, current coords, print ... B]asm_fzx_puts_justified[/B]
Print a 0-terminated string but ... B]asm_fzx_write_justified[/B]
Print a buffer of chars of ...FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... attribute squares extend to the right to the full ... second attribute application needs to occur, which will ... should be attributed. Like PRINT PAPER 6;"Hello world" ... words it doesn't print spaces, it advances ... nothing is actually output to screen which is why you ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... comes in handy.
print at (hires)
... = 0x1800
SCRROW6 = 0x4600 ; screen row 6
BYTSROW = 32 ... /> ld (hl),a ; back to screen
ex af,af'
ld (hl),a ; to screen
dec hl ; vmem pointer ...z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... vertical position.
rst 16 ; print it.
ld a,(xcoord ... . Without it nothing is displayed to screen.
[code ... position.
rst 16 ; print it.
ld a,(xcoord ... y coordinate.
rst 16 ; print it.
ret
< ...z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... AT.
rst 16 ; print it.
ld a,(ycoord ... ; vertical position.
rst 16 ; print it.
ld a,(xcoord ... ; y coordinate.
rst 16 ; print it.
ret[/code]
to screen.
[code]delay0 ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
Here is my 64 column print routine.
[code]
;------------------------------------------------------------------------------;
; ... ; de = character gfx, hl back to screen
pop af ; get carry ...price of magik lenslock ?After some time playing this text adventure I saved my progress to tape, but when restoring I came across what seems to be a lenslock protection, is …
... the lenslok routine print the two letter code to screen instead of keeping ... it to itself. It can ... original, also redirects load/save to use ROM routines.....
price of magik lenslock ?After some time playing this text adventure I saved my progress to tape, but when restoring I came across what seems to be a lenslock protection, is …
... the lenslok routine print the two letter code to screen instead of keeping ... it to itself. It can ... original, also redirects load/save to use ROM routines.....
[/quote ...price of magik lenslock ?After some time playing this text adventure I saved my progress to tape, but when restoring I came across what seems to be a lenslock protection, is …
... the lenslok routine print the two letter code to screen instead of ... keeping it to itself. It ... original, also redirects load/save to use ROM routines.....
... with the lenslik "visible" on screen
the hacked [h] ...ZX81 Character SetHello, hope I don't offend anyone with my request. I've put together a program on my Amstrad that redefines a condensed text and displays it appropri…
... the correct graphic matrix character to print in the correct location. ... driver, it is possible to display images with pixel resolutions ... up to 256x192 (or with some ... you cannot use BASIC to print to the hi-res screen.
...Spectrum Screen RAM layoutHi there The spectrum screen layout is rather odd. It seems to be arranged into 3 256 byte groups. If I have an x (horizontal) coordinate (from…
... can add 1 to it to move one character to the right, or ... within the character cell. To move down to the next character position ... are easier if you only print to character positions; it's when ... INC H trick before needing to re-calculate the screen address.
