-
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…
... /> xor a
dup 32;unroll cycle
rl(hl ... adress ROM font
add hl,hl;ascii*8
add hl,hl
add hl,hl
ld ... bc,$3C00;ROM font
add hl,bc
ex de ... -
Game of Life.Last year (I think) or maybe the year before, I entered a Game of Life simulator into the CSS CGC compo but for the Sinclair ZX81. I decided to port…
... FindVars
ld de,32
add hl,de
inc ... 32
pop hl
add hl,de
add hl,de
add ... pop bc
add ix,de ;IX += 32
dec c
clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... row, mask the column
add a,32 ;next row
ld ... row is incremented by the ADD, so the segment is incremented ...clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... with zeroes
ld bc,32 ; dist to next pixel line ... de
ENDR
add hl,bc ; next pixel line ...clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... mask the column
add a,32 ;next row
ld ... is incremented by the ADD, so the segment is ... zeroes
ld bc,32 ; dist to next pixel ... br /> ENDR
add hl,bc ; next pixel line ...clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
or this
[CODE]
ld hl,16384
ld a,192+24
lp_cls2 ld bc,25*256
lp_cls3 ld (hl),c ;0
inc l
djnz lp_cls3
ld c,32-25
add hl,bc
dec a
jr nz,lp_cls2
ret
[/CODE]clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
or -1 byte = 18 bytes
[CODE]
ld hl,16384
ld de,192+24
lp_cls4 ld bc,25*256+32-25
lp_cls5 ld (hl),d ;0
inc l
djnz lp_cls5
add hl,bc
dec e
jr nz,lp_cls4
ret
[/CODE]clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... ;increment line D=010sslll
add a,d ;avoid double increment ... /> ld a,e
add a,32 ;increments 'rrr' where E=rrrccccc ... br /> ld a,d
add a,8 ;increments 'ss' where ...Preferred setup for a ZX Spectrum 48KHi! I got me a ZX Spectrum 48K for about 1.5 year ago. Feels good to have one, I really like the look of it! Except for the computer itself I have …
... supported Kempston joystick! :)
Add a RAM turbo joystick interface ... than playing on a big 32 inches CRT TV or LCD ...SpritesYes yes, I know this has been hashed over plenty of times before, but... I have knocked up a quick tiling routine which works with my back buffer co…
...
LD A,L:ADD A,32:LD L,A:JR C ...
LD A,L:SUB -32:LD L,A:SBC A ... ,A
AND -8:ADD A,H:LD H,A ...What is the Speccy? exUSSR edition.In exUSSR 8 years ago have been solved all these issues, and developed a General opinion. All who do not agree with this opinion, are incompetent peo…
... the ts2040 printer (aka Alphacom 32) that used a different thermal ... gotten) but also expanded to add commands for the new hardware ...Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... ;increment line D=010sslll
add a,d ;avoid double increment ... /> ld a,e
add a,32 ;increments 'rrr' where E=rrrccccc ... br /> ld a,d
add a,8 ;increments 'ss' where ...Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... the screen attributes yourself every 32 frames as well as them ... by the ULA. then you add a frame each time you ...Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…
... $ 1 ->CHR$ 127 (default 32)
cm = max. length; s ... 2901: print updated string after add/delete
[*]lines 2902/3 ... check
[*]line 3000: common add/delete/no-op return
[*]line 3200: add a character
[/list]
Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... ,0; FLASH ((p-INT (p/32)*32)>=16);" "
LINE3: ld ... a,(23680) ;A =z
add a,c ;A =p=z ...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…
... possible create characters with code 32 to 255. Why, if FZX ... terminator. That's easy to add to any string printing routine ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
...
L2 LD B,32 ;draw one line
SUB 32
LD L,A
LD A,H
ADD A,4
LD H ... /> LD A,L
ADD A,32
LD L,A
Snowfall effectHow do you go about creating a snowfall effect like the one in Yeti? Now don't laugh, I'm currently printing 32 UDG's of dots OVER the top of my gam…
... 8.
add a,h ; add to d give ... by 8 and multiply by 32,
rlca ; net ... calculation done.
; Add the horizontal element.
... across screen.
add a,l ; add to total so ...Snowfall effectHow do you go about creating a snowfall effect like the one in Yeti? Now don't laugh, I'm currently printing 32 UDG's of dots OVER the top of my gam…
... by 8.
add a,h ; add to d give segment ... by 8 and multiply by 32,
rlca ; net calculation: ... - 31 across screen.
add a,l ; add to total so far ... ix,map
ld de,32
ld c,11
Snowfall effectHow do you go about creating a snowfall effect like the one in Yeti? Now don't laugh, I'm currently printing 32 UDG's of dots OVER the top of my gam…
... by 8.
add a,h ; add to d give segment ... by 8 and multiply by 32,
rlca ; net calculation: ... - 31 across screen.
add a,l ; add to total so far ... ix,map
ld de,32
ld c,11
64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... a 128K you could do 32.
One way to ... data on the stack, then add an offset, and start copying ... .
Vertically, you just add some data to the end ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... , it's possible to have 32 columns in Spectrum 48K. The ... data on the stack, then add an offset, and start copying ... work as follows: First, copy 32 attributes from linear buffer to ... / PUSH[/B]. Afterwards read next 32 attributes from linear buffer and ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... 1:
line 1 --> 32 * pop hl:ldi
line ... way in your opinion to add masked objects on top of ... is fully unrolled and just add masks where needed (annoying!)? I ...assembler for PcHi guys, I'm in the process of teaching myself machine code, and wondered if there is a good pc program for writing code. Or is the best thing to use…
... 's based on Windows 7 32-bit, but the procedure should ... best place.
2) Add the Pasmo directory to the ... .
* Click "Edit..." and add the directory where you installed ... Files\Pasmo\", then you would add the following TO THE END ...Simple text scroller, first character problemin a text scroller, whole line scrolled to the left by 1 pixels using RL(HL) ; DEC L method. But at the rightmost character must be printed immediate…
... way. It doesn't really add any complexity to the code ... screen again
rept 32
rl (hl)
dec ...Simple sprite inertiaDoes anyone have or can anyone point me to any good examples of sprite inertia (in assembly)? I'm not after anything vector related, just simple x,y…
... LD HL,PLAYERY
ADD A,(HL)
CP 16 ... ,PLAYERX
ADD A,(HL)
CP 32
JR ... ,CHECK_216
LD A,32
CHECK_216 CP 216 ...Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…
... h, e
add hl, hl
add hl, hl
... a,+(_sprtbl & 0xFF)
add a, l
ld (ix ... h, e
add hl, hl
add hl, hl
... ld de,+_sprtbl
add hl,de
ld a ... +0x00 ; 0
DEFB +0x20 ; 32
DEFB +0x18 ; 24
