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Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …
... /> LD HL, $5800 ; 16384+6144
call fill_attrib_data
LD HL,$4000 ; 16384
call fill_screen
... /> LD HL, $D800 ; 49152+6144
call fill_attrib_data
LD HL, $C000 ; 49152
call fill_screen
< ... -
Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... JR NC,EAF4 ; Jump back to L2 (ROM ... JR NC,EB17 ; Jump back to L5 (ROM ... /> 0xEB2F JR EB3A ; Jump ahead to L7 (ROM)< ... goes from
;16384-18431 0x4000-0x47FF 01000xxxxxxxxxxx
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... see:
Screen:
16384 vs 0x4000
18432 vs ... />
32768 vs 0x8000
49152 vs 0xC000
65535 vs ...Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
[code]
LD HL,16384 ; put 16384 to HL
PUSH HL ; ... store 16384 to stack, change stack pointer ... /> ; as address where program must jump to return to caller
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
This is just an example of what the stack can do.
It is just swapping values around.
[code]
LD HL,16384
LD DE,22528
LD BC,49152
PUSH HL ; put 16384 onto the stack
; stack 16384Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…
... 16K (below 0xC000 or 49152) for safety against the ... ). Or at 49087 you jump down to 48897 and that ... the table and the jump to fit your routine.< ... between the table and the jump (49087 downward), or between ... jump and the top of that 16K chunk of RAM (49152 ...DivIDE allram mode help neededHi guys, are there any DIVIDE wizards out there that can explain how i page in the allram and add a rom file to it i sometimes need to load spect…
... CPU can't never jump to address area 8184 ... modified = CPU can't jump to address 8184-8191. ... 1) set ramtop at under 49152
2) place custom ... rom image from addres 49152
3) run ... interrupt, else during LDIR jump interrupt routine to divide ...Ooze, Andy Johns - 2017Here is Ooze by Andy Johns, written using AGD Hacking and additional code David Saphier Music by Miguel and Raydan. http://zxbasic.uk/uploads/o…
... :
@40000 credits (extracts to 16384)
@40000 loadingscreen (extracts to ... 16384)
@40000 data, this extracts to memory bank 4 @ 49152 ...ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…
... /> jr c,_ulzfa010 ; 12/7t - jump to literal copy
;;
16384 to the offset)
ld ...ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…
... /> jr c,_ulzfa010 ; 12/7t - jump to literal copy
;;
16384 to the offset)
ld ... /> }
fseek(fp_in,0,SEEK_END); // jump to the end of the ...128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... /> [code] PAGE 0
ORG 49152
MODULE PAGE0
DISPLAY "* PAGE 0: ", /D, 16384-(PageEnd-PageBegin), " bytes free"
z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …
... [b]fread[/b] to [b]16384[/b] I was able to ... there is NO system to jump back to, I was thinking ...Most played games: Pirated vs BoughtMy confession of guilt in the piracy thread that I'd never legitimately bought an Ultimate game, despite playing Knight Lore to death BITTD, led me t…
... at the usual 16384,6912:
LD IX, 16384
LD DE ... the stack somewhere sensible and jump to 24832:
LD SP ...Best and worst loading coloursWas just thinking the other day about this, what are the worst / best loading colours that have been seen ? :) Apart from loaders with either mult…
... with USR and managed to jump halfway into the ROM loader ... c=7
for j=16384 to 16384+34
read a ...
next j
poke 16384+28,c
randomize usr ... 16384
data 62,255,221, ...Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... 6912 bytes long starting at 16384 mostly.
If you ... there, then type LOAD "" CODE 49152, it'll load to the ... .bin file as data from 16384,6912 bytes long.
49152, I think that might work ...Clever, yes. Useful? Not so sure. Re: LOAD ""CODE gamesI was always curious about how the (few) games that require that you type LOAD ""CODE, rather than the usual LOAD "" worked, but only just now decide…
... you do a SAVE ... CODE 16384,49152 your program can't be ...New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…
... just the data (no basic) @ 16384
this is useful for ...New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…
... of page/bank 7 and jump to there
17) Copy ... , default 23734 (CHANS)
1: @16384 (top left of screen pixel ... program will error
4 : @16384-32751 user specified memory location ...Can I record binaries from any emulator with Basic commands, machine code, macros or something?Hello I do not know if this is the right place to put this question Normally with ZXSpin if I want to save a binary file, I'm going to: file ->…
Surely
SAVE "binary" CODE 16384,49152
(within a running program) would do this...
Then to reload
1 LOAD "binary" CODE
would do the rest!How to store and recall a "window"?I would like to memorize and then restore a rectangular portion of a screen, pixels and attributes. To make things easier, this "window" would be sit…
... />
[code]
org 49152
defm "ZY10"
; HL = 49152 + 256 + A x 1152
ld d, 64 ; 64 * 256 = 16384
inc e
Dynamite Dan II - Island 6 - HELP!Hi all, can someone possibly create a snapshot of Island 6 (car park island) on Dynamite Dan II for me please? I'm trying to work out why half the…
... ; CLEAR 24575
ld ix,16384 ; Address
ld de,6912 ... data?
jr z,poker ; jump to poker (key reading routine ... 8
jr nz,poker ; Jump if no keys pressed
how can we load +3dos files in assembly?is there some way to load +3dos files in assembly, like calling bios routines somewhere? (like defining in registers the filename string address in m…
... 23388
ini_pant equ 16384
lon_pant equ 6912
call paginar
; Jump to the game
jp ...XYZ - a multithreaded GUI operating system for SpeccyToday I'm re-starting my unfinished project. A few years ago I wrote the yx multitasking kernel (which includes RAM/ROM versions, threads, memory man…
...
[code]LD HL,16384
LD (HL),A
[code]LD HL,16384
LD (HL),A
jump to block.
For ...Adventures Inchi! I'm a BIG fan of adventures. I have a huge collection of them on my PC. By this I mean of course, games for Speccy, Amstrad, C64, Atari ST AND …
... ) [url="http://www.void.jump.org"]www.void.jump.org[/url] - World ...
