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FAST adsHiya Does anyone remember the FAST (Federation against software theft) ads that came out in the late 80's and early 90's. They were hilarious as the…
... />
Does anyone remember the FAST (Federation against software theft) ads ... -
IM 2 interrupts and smooth scrolling - easy peasy!Okay, been fiddling around with IM 2 and have actually mastered (I think) how to use IM 2! Now I run my game Ragnar Revival in IM2 and use HALT to sy…
... code.
(The table with pointers is not located ... to place the pointer table at 254*256+254, ... 0056 in ROM
jp 56 ;for smooth return to ... hl,58880 ;Building up a table with
ld de ... ld hl,58853 ;Create a JP NN at address
ld ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... is to set up a table of 257 identical bytes at ... in the ROM as a table of 257 0xff bytes and ... where you could put a JP to your 'real' interrupt routine ... -
need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... speed.
[code]DRTABL ;precalculated table, needed for left and right ... SPRXCO) ;
AND 7 ;
JP Z,DRAWNOX ;this part doesnt ... line on the screen.
JP DRAWSPY
DRAWCH1
... -
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] ; ***********…
... to 0056 in ROM
jp 56 ;for smooth return to ... hl,0FE00h ;Building up a table with
ld bc,0FDh ...
ORG 0FDFDH
JP MainLoop
END
Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…
... A ;increase scroll position
JP NZ, MLOOP
RET
DJNZ CLEARLP2
JP ZERO ;Skip the next bit ... ,L ;row in background data table
SUB 12
... ;decrease row loop counter
JP NZ, ROWLOOP ;jump back to ...The incredible shrinking screendumpIn this topic I stated that I would be impressed if the screendump could be smaller than 37 bytes. [url="http://www.worldofspectrum.org/forums/viewt…
... or 192 at end of table
jp z,#1ff8 ; Do last ... hl ; Goto next byte in table
ld e,(hl) ; ... Fetch 'last' byte in table
prbyte ld a,(hl ... print
rst 16 ; Printing table and screen
ld a ...Cobra - scrollingHi everyone, I have been studying some of the code in Ocean' Cobra game using a debugger, in the hope of improving my own scrolling routines. In cas…
... guess there must be a table in memory somewhere which stores ... unaltered, except for being unplayably fast.
Has anyone else ...DEC BC/LD A,B/OR C/JP NZ,loopyesterday i saw nice trick:[code] dec bc ld a, b or c jp nz, loop can be replaced (bc starts >255, short jump) by: dec bc inc b djnz loop [/code] …
yesterday i saw nice trick:[code]
dec bc
ld a, b
or c
jp nz, loop
can be replaced (bc starts >255, short jump) by:
dec bc
inc b
djnz loop
[/code]
..niceWest Bank: The most pointless high score table everWest Bank is a good little game. I played it and got a score of 25000 odds starting at stage 6, which I thought was quite good. Then as the game ende…
... it to the high score table. Then I looked closer - the ... last entry in the table has a score of 250000 ... on to the high score table ever! It's not that ...JSW64 Feature ListOk, I remember at least someone asking about the current state of the JSW editing scene, so I thought I'd post this, which I wrote in the JSW/MM club…
... ) Horizontal guardians now available in fast and slow versions
b ... has it's own guardian table - no more fretting over
Hi-Score tableThe score in my game occupies 3 bytes. I want to create a hi-score but I'm not sure of the best way to work out where a new score would fit in the ta…
The score in my game occupies 3 bytes. I want to create a hi-score but I'm not sure of the best way to work out where a new score would fit in the table. Has anyone tackled a problem like this before ?ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... as it runs.
FAST and SLOW directives for speeding ... and variable.
Token Table - shows a graphical ascii list ... emulated.
Very, very fast emulation.
ZX Printer support ... scaling[/B]
Very fast update routines for sending Speccy ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... as it runs.
FAST and SLOW directives for speeding ... and variable.
Token Table - shows a graphical ascii list ... emulated.
Very, very fast emulation.
ZX Printer support ... scaling[/B]
Very fast update routines for sending Speccy ...ANNOUNCE: ZX Spectrum Game Coffee Table Bookhello peeps. I'm about half-way through writing a full-colour 250 page 8.5x5.5 inch coffee-table type book about Spectrum games from 1982 through 19…
... .5x5.5 inch
coffee-table type book about Spectrum games ... />
I've put the table of contents and some sample ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... contains: doubly linked list, hash table, heap, queue and stack.
fast way with sp1_PutSprClr(). The latter ...Problem with rotating procedureHi folks! I wrote a proc in z80 asm, based on: x' = x * cos (z) - y * sin (z) y' = x * sin (z) + y * cos (z) I used a precalculated table of sin a…
... /> I used a precalculated table of sin and cos data ... br /> start: call rotator
jp start
;============================================================================
;mult21 ...SimCoupe 1.0 released[size=-2](for those of you that don't read CSS)[/size] SimCoupe, the SAM Coup? emulator, has been updated to version 1.0. This major release adds ma…
... efficiency of contention table lookups [Dave Laundon]
- Improved fast-boot to ...Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…
... .
It uses table lookups for the screen address ... address
madp_poke:
jp madp_move
madp_move:
; xmove ... h to beginning of xpos table
; so now hl= ...ZXSP Emulator running too fastHi All, I was wondering if any of you have had a problem whereby the zxsp emulator runs too fast so won't load games etc? For example, when loading…
... the zxsp emulator runs too fast so won't load games ... high the stripes are too fast.
I'm running ...Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …
... incorporating a byte mirror table. The compiled version is ... HL
jp $1655 ; exit via make_room ... br />
; ------------
; MIRROR TABLE
; ------------
;
; A ... 256 byte lookup table to mirror the bitmap contained ...Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …
... />
org $8000 ; run in fast RAM
di ; disable ...
ld (hl),$c3 ; jp $1907
inc hl ; at ... br /> dec sp ; $1901
jp $2bb1 ; $1902
l1905: ... $18f3)
ZX_patch:
jp $386e ; $18f3
ldir ; $18f6 ...Ascii TableDear All, Anybody knows where can I find an Ascii Table for the zx? I would like to know which charcaters are for example like carriage return (10?…
Dear All,
Anybody knows where can I find an Ascii Table for the zx?
I would like to know which charcaters are for example like carriage return
(10?)
Thanks in advance.
DevwebclToo fast zx32Hi all, my sister has bought a new PC. I installed all software for her yesterday. But contemporary fast computers don't offer only pleasure. Our fa…
... for her yesterday. But contemporary fast computers don't offer only ... zx32, for example, runs so fast that it's unusable.
FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…
Why is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this file is always slow.
[url]http://velesoft.speccy.cz/other/tapslow.zip[/url]
VELESOFTBresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…
... integer math and runs very fast and is very compact.
jp Loop ;end While
So... you want to format your 3.5" as 720K eh?Well, i've been trying to get hold of an application to make proper use of my 3.5" +3 floppy disks but i haven't been able to find any. I stumbled up…
... the beginning of our sector table as requested by +3DOS
JP NC,FERR ; Jump if there ...
RET ; Return
DISK1 JP (IY) ; Main call to the ...Games for Wedding Table NamesFor our imminent wedding, my Fiance has decided that we need to introduce a Spectrum theme, as it's present in our daily lives anyway ;-) So, we're …
... , laminated and placed on the table.
We have 5 ... ) Three Weeks in Paradise (Our table, refers to the honeymoon?)
Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
...
;Configure interrupt vector table,
;set 65024..65280 ... 04t => 022t
jp nz,interrupt_delay_loop ;10t => ... still works in BASIC):
jp 56
... interrupt routine:
sample_jump
jp interrupt_main
