-
Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…
... Memory Block. Apart from the fact that the RAM page ... [I]start address [/I]= 16384, [I]length[/I]=6000, you ... and select "run". The Z80 will now freeze at the ... . If you interrupt the Z80 at a random point, ... , and make sure the Multiface peripheral is ticked. Enter ... -
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 …
... char based sprites using the Page flip method:
A Z80 snapshot can be found here ... co.uk/downloads/bb2.z80"]http://www.peargames.co ... .uk/downloads/bb2.z80[/url]
... .WORD
#DEFINE DEFS .BLOCK
#DEFINE EQU .EQU< ... -
SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…
... present you cross-compiler of Z80 assembly language: [B] ... ]
[LIST]
[*]Z80/R800 documented and undocumented opcodes ... file inclusion
[*]Multiline block comments
[*]Multi file ...
[size=4]Project page at SourceForge:[/size]
[size ... -
.Z80 format question for 128KHello!!! I am working on my ZX Life Shield utility to make it compatible with .Z80 snapshots. I have sucessfully coded .Z80 48K snapshots, but for …
... to make it compatible with .Z80 snapshots.
I ... have sucessfully coded .Z80 48K snapshots, but for 128K ... In 128K mode, which 16384 bytes page belongs to the addresses:
16384
32768
49152 ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... ZX Spin. Select Tools -> Z80 Assembler.
To run our ... -hand side of the assembler page to make your code more ... the Display file, from addresses 16384 to 22527, which stores a ... , which affects an 8x8 pixel block per byte, in logical order ... -
Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... has some of the best Z80 coders in the world, I ... last byte of the data block is always $ff.
- Minimum ... , is not aligned to a page limit).
- Hard-coded addressing ... -
A snapshot to transfer converterI'm programming a tool that takes an snapshot file and convert it to a tape file that mimics those created with transfers. This is a long term projec…
... game (BASIC, CODE 16384,75 and a headerless block of 49052 bytes ... that should:
- Convert SNA, Z80 and SP (Pedro Gimeno) snapshot ... have strange loaders (i,e.: Multiface, Specmate). -
Restoring AY registersAfter doing (not still finished) the sna to tap converter, I'm going to try to do the same for 128k snapshots. I've got threee ideas about what to do…
... only found them in Z80 snapshots (I guess SZX ... part of RAM page 5, page 2 and page 0.
... 7.
5.- Restore page register $7ffd.[b](*)[/b] ... placed at 16384 loads a headerless block starting at 16484 ... easily modified to load our block.
Some ... -
AmericaI've been wondering, was the Spectrum released in America? Was it popular? Are there Spectrum games that were made in America? There must be a few A…
... 48k board in order to page this memory and the fact ... South America and other eastern block countries, there is/was a ... to be mapped into the z80 memory space.
Aside ... out (as the IF1, +D, Multiface do) whereas the 2068 has ... -
Starglider 128k TZXNow I would if I could, but I simply don't have a copy of the game on tape handy, but is there any possibility that someone could upload a working ve…
... Block Editor and noticed that some data is in a different page ... .
Unless the Z80 on WoS did ... as SNP 128 on a multiface?
OTOH, Later bug ... ? Could you possibly provide a Z80 from the +3 version snapped ... -
Emulator File types...SNA/TAP/TZX/Z80/ZXS All I knew about the Spectrum was how to play games on it, but since being introduced to pc emulations back in '97 I've always w…
... aside, whoever wrote the page you referenced doesn't have ... ones on the z80, which the z80 interprets as a ... to load the next data block "from tape".
... JLO system I would page in the shadow RAM ... the same format that the multiface uses on the real ... -
Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…
... is paged out
; so multiface is happy!
;
... 1"
;
ld de,16384 ; unpack loading screen
call ... is needed
; to page out the if1...
;
block
;
call closem2 ; ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... ZX Spin. Select Tools -> Z80 Assembler.
To run our ... -hand side of the assembler page to make your code more ... the Display file, from addresses 16384 to 22527, which stores a ... , which affects an 8x8 pixel block per byte, in logical order ... -
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…
... 3) Load compressed page 0 into page/bank 2 and ... will scan for continuous block of zeros
...
4 : @16384-32751 user specified memory location ... />
Z80onDSK snapshot1.z80 snapshot2.z80 compilation1
where "compilation1 ... -
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…
... on the JITer experiment. Z80 to Z80 JIT means you hook all ... blocks First block is
[code]LD HL,16384
... [/code]
And second block is
[code ... example: dynamically relocate call or page memory) and then replace the ... -
Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…
This Z80 lark isnt easy, in fact ... my own.
Secondly, 16384 to 23296 is the graphics ... -
Multiface problemsHi there, OK, I was troubling the guys in the chat forum with this yesterday, but I'll reiterate here. Here is the hardware I am testing: Spectrum…
... Spectrum 128K+
Multiface 128
Multiface 48K
The ... Multiface 48K works correctly with both ... modes). However, the 128 Multiface only works with the 128K ... the Z80 in the +2 (as recommended by the Multiface manual ... -
Z80 opcode breakdownAnyone knows if there's a document on the net covering all the Z80 instruction breakdown by machine cycles? All I could find was that one on the Z80…
... the net covering all the Z80 instruction breakdown by machine cycles ... was that one on the Z80 support page and the CSS Faq ... -
Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]
If you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url] -
TASM, Z80 and Spec emusHi! Having some novice questions here regarding TASM and writing machine code for the Speccy emus... Now I have configured TASM into my EditPlus and…
... />
; Testfil
LD HL,16384
LD (HL),255
Z80 asm syntax? The demo z80 file with tasm ... separate binary files? Any good Z80 guides on the net specific ... -
Z80 core testing ?OK, my z80 core is almost finished (apart from RRD, RLD, and block instructions except LDI,LDIR,LDD,LDDR). I run the 48K rom and hurray, it resets co…
... z80 core is almost finished (apart from RRD, RLD, and block instructions ... debugging work, is there a Z80 program that can tell me ... -
Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …
... .peargames.co.uk/downloads/bb10.z80"]http://www.peargames.co.uk ... /downloads/bb10.z80[/url]
and the ... DEFW .WORD
#DEFINE DEFS .BLOCK
#DEFINE EQU .EQU
Hard drive and Multiface problemsI recently read about the Spectrum +3e, and thought to myself - "I'll give that a try, and I'll build the Hard drive Interface while I'm at it". So,…
... a hard drive, a butchered multiface (for the edge connector - it ... . I thought that maybe the multiface snapshot had become corrupt whilst ... out some way of getting .z80 snapshots over to my hard ... supports the loading of 48k z80 snapshots.
< ...finding largest value (z80 assembly)suppose we have to write z80 program which requires to find the biggest value in a block of memory starts from the address 101h until address stored …
... z80 program which requires to find the biggest value in a block ... 100h
( the length of block stored in 100h),then put ...Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
I'm quite new to z80 programming, but i'm attempting ... stuff at the start of Page 5 (at 8000h). I ... this for graphics instead of page 2 due to the memory ... which requires me to manually page in ROM 3 and RAM ... used for the stack from page 5. Does this not corrupt ...Thanatos and the MultifaceI saved my position on Thanatos using a Multiface 128, and when I loaded the file back in to the Spectrum, I noticed that the 128K sound had gone, an…
... position on Thanatos using a Multiface 128, and when I loaded ... don't know why a z80 save file fails to start ...My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... want to polish my little z80 asm coding habits if you ... />
[CODE]
SCREEN equ 16384
ATTRIBUTES equ 22528
block of 256 bytse (first char ...
