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Mojon Twins MK2 and lighting effectsDoes anyone have any experience in getting the overlay.h working in the MK2 engine. There were several games written in the churro that used the ove…
... /> ._ovldbl
push bc
; Copy 30 attrs
< ... add hl, bc
pop bc
djnz _ovldbl
pop bc
add hl, bc ... ; hl = ovl_y * 32
pop bc
add hl, bc ... -
High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …
... value
LD HL,(TEMP) ; copy in HL the address stored ... coordinates and attributes
PUSH DE ; store the present position ...
PUSH AF
RST 16 ; show character
POP AF
Sort 2 byte words (x, y) on ypos, also question about swap (DE), (HL)Well that was a lot of debugging ;) But if you want a routine which takes an array of 16 byte words x, y and then sort them on y (ignoring x), I'm…
... br /> .heapify_words_body
; push root & count
push bc
ld ... /> add hl, de
push af
push hl
or a ... e
push hl
add hl, de
pop de
It's not fast enough to sort each frame ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... code but not very fast. The PUSH/CALL/RET/POP is way too ... rtunes ;o) and is quite fast; the slowness of the routine ... come up with some new fast algorithm for drawing a line ...Number 6 in the Village (text adventure) Please help!!!Does anyone have a solution to this text adventure. I've tried to escape by air and sea using the jammer but it hasn't worked. I've been playing it …
... you should grab yourself a copy of Unpaws 2.0 by ...
PULL 36 Verb
PUSH 37 Verb
TURN 38 ... are in a copse. Mountains block the way north.^{7}Exits ... grass and tangled undergrowth and push your way past branches and ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... each shift position, a copy of each sprite. This is ... gfx) pairs
pop l
ld a,(hl ... and (ix+0)
pop l
or (hl)
[/quote]
pop l? I don't quite ... you can have a fast four pixel shift as ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... the sprites, especially in the fast moving sprites.
8 ... a frame to perform the copy. Positives: flicker issues are eliminated ... Smith pages, I implemented a "push-many-timer" scroller, great fun ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... each shift position, a copy of each sprite. This ... pairs
pop l
ld a,(hl ... and (ix+0)
pop l
or (hl ... 's no 'push l', only a 'push hl'. You should ... anyhow :)
pop bc
ld l,c ...Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…
... we have: we have a copy of a background screen in ... transfer a part of this copy (32*48 pyxels) into the ... /> I've tried LDI and POP-PUSH, but Im not quite sure ...Fire Ruby - More HelpI cant pass the spikes in the fire ruby by lawrence creighton, can someone please help? [ This Message was edited by: welsh_brawler on 2003-08-08 21…
... 132
STOC 133
PUSH 134
DOUB 135
push, it moves off a{6 ... , and rubs it with a block impregnated with{6}carborundum. "There ... /> Message 232
{16}{6}Copy Mr Fawkes!
Message ...TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…
... updates to cater for new copy protections we've found recently ... using 8063 for a data block thus it should be stored ... />
I'm updating as fast as I can, the schemes ... ROM & Turbo blocks, ZX81 block etc etc).
Remember emu ...Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …
... 's so much help so fast! Derek, you must be ... /> di
push hl
push de
push bc
push af
pop af
pop bc
pop de
pop hl
unscrambleHL:
push de
push bc
push af
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... WORD
#define DEFS .BLOCK
#define EQU .EQU ... /> PUSH AF
PUSH BC
PUSH HL
PUSH IX
POP HL
RET
DoBlankAttr:
PUSH HL ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
...
#define DEFS .BLOCK
#define EQU . ... /> PUSH AF
PUSH BC
PUSH HL
PUSH IX
POP IX
POP HL
POP BC
POP AF
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... DEFW .WORD
#DEFINE DEFS .BLOCK
#DEFINE EQU .EQU
POP BC
LD SP,HL
PUSH BC
PUSH DE
PUSH ...the happiest days of your life-pt2hello,again i have come up with 2 solutions to the problem of solving this game:- 1.the more people that try to solve this game (by combining diffe…
... ...
(Using the excellent Copy and Paste Utility in SPIN ... routine
#DB48 PUSH IX
#DB4A POP HL ; Preserve IX register ... ) ; 'A' contains #62
#DB6C PUSH BC ; Preserve location of incoming ...Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…
... WORD
#DEFINE DEFS .BLOCK
#DEFINE EQU .EQU< ... ) ----
push de
push hl
... />
done_draw_attr:
pop hl
pop de
; ... (Sprite_RotateAddr),bc
pop af
ld hl, LastRotateTable ...New Turbo-Load version of Tales From A Parallel UniverseNot very interesting to most, but I know some of you still use 'real' Spectrums. While fiddling around with a program I created ages ago to build c…
... reason why it's so fast to load. It's so ... 59970; that loads the first block, decompresses and displays the picture ... , then loads the second block and returns to BASIC at ... compressed, it's just a copy of the ROM loader routine ...Installing Z88DK Z88DK INSTALLATION Z88DK is distributed in two parts. The first part is the platform independent bits (including source and z80 libraries) and th…
... temp directory:
[code]copy c:\CVS\z88dk\lib\spec_crt0 ... .opt .s1pk_1.opt
copy .s1pk_1.opt .s1pk_1.asm
pop bc
pop hl
push hl
push bc
push hl ...Games Club - Week 10Hello everyone, Last week I asked you to nominate games written by Pete Cooke the following nominations were received Academy Tau Ceti Brainstor…
... again and try fast forward the tape a block but it doesn ... and I'll update your copy of SPIN.
D ...T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …
hm, not a copy routine from CHASE H.Q.< ...
push iy
push ix
push bc
push de
push af ... /> pop bc ;38
ld sp, hl ;6
push ...Push/Pop methodMachine code question: Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another? I've heard it i…
... to the data to copy
POP into registers
PUSH the registers, thereby copyint the ...Push/Pop methodMachine code question: Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another? I've heard it i…
... to the data to copy
POP into registers
PUSH the registers, thereby copyint the ... SP,POP-stack
POPPERDEPOP etc...
LD SP,PUSH-STACK
128 ramdisk loaderanyone got a program which will save the contents of ramdisk to tape in one go, rather than saving each file seperately then loading them and save!in…
... as a separate headerless 16k block. The save could look something ... ),a
ei
push bc
push hl
ld ix ... ,4000h
call 04C2h ; **
pop hl
inc hl
pop bc
jr loop
< ...z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... de, (destino)
uncrunch:
push de ; destination pointer to 2nd ... register
exx ; set
pop de
; El jussi ... tocarlos.
push hl
push de
push bc
push af
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... [quote]I already have a fast static huffman encoder / decoder ... for symbol
push hl
exx
pop hl ; hl = ...
.writeloop
pop af
ld a,c ... cp h
.foundchild
push af ; save: nz = right ...Ideas for new tape storage formatSome called them decoders or encoders, but I think that it is just something like form of presentation. Goal is of course smaller size, support of e…
... the format of the TZX block system.
... />
The Direct Recording Block (DRB) was designed as a ... enough variety in the block types to ensure that ... . It *is* a copy of the DRB structure with ... edge change, no matter how fast, must be stored.
