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RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…
... states that maybe only preserving bytes $db00 ~ $e7ff is necessary (if ... going to use SET1346 to disable caching, then load from BASIC ... -
Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…
This short program will disable the +3 disk buffer. This ... also stops the 1st 4096 bytes of RAM PAGE 1 (17 ... -
BIFROST* for graphic artists - part 1Using multicolor requires 2 very different skills: [I]programming[/I] and [I]graphic design[/I]. I already wrote several tutorials about the former …
... tiles. Each tile takes 64 bytes, thus a full tileset will ... the steps would be: halt, disable BIFROST*, paint playing area attributes ... -
Assembler v Machine CodeHi. I've been looking at a lot of the code examples in the Development section and can see that Assembler is the way to go. However, I was wondering …
... /> [LIST]
[*]For patching binaries: disable copy protections, change a text ... order of least/most significant bytes, and so on.
[*]If ... small (say, up to 50 bytes max?), that it's easier ... to plunk down a few bytes directly than fire up an ... -
DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…
...
OUT (23),A ;disable interrupt,disable MB02 memory,set divide block ... rom image is always 8192 bytes
LDIR ;copy rom image ... -
More tea, vicar on disk?Hello, can somebody help me putting the 128k version of this game on disk? The 128k version is free available from Jonathans Webseite. However, the g…
...
res 4,(iy+1) ; disable paging (free printer buffer)
bytes.
Pretty simple really ... -
DivIDE black editions availableI have about 6 more DivIDE black editions ready, and will finish more this week. [B]DivIDE 57c BLACK edition including ESXDOS 0.8.5 and 1GB CF card[…
... jumper JP2 on DIVIDE (this disable automatic divide memory connection). PLUS ... . PLUS D interface bust have disable memory, only FDD ports must ... .
I see 1391 bytes of free space in PLUS ... -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... RAM
BAS EQU #3F; Disable write
SHD EQU #BF ... address
DJNZ PAT_LP; Count bytes
CALL HX_BYT; Get parity ... RAM
OUT (BAS),A; Disable write
OUT (RAM),A ... -
Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…
... DB00h to E600h inclusive, and disable the sector cache before loading ... . So you could load 0B01h bytes of data into video RAM ... -
Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…
... DB00h to E600h inclusive, and disable the sector cache before loading ... . So you could load 0B01h bytes of data into video RAM ... -
SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... /> [*]Detokenizer simplifies editing lines.
[*]Disable BREAK with ON ERROR CONTINUE ... that uses the first two bytes of the ROM as a ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... ]
Yes. You could disable [B]bicolor[/B] rendering for ... play area with monochrome bytes and have the bytes replaced as the ... -
Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... mentioned your tap was 4968 bytes. If your program is ... "struct sp1_ss" per sprite (20 bytes) and one "struct sp1_cs" per ... sprite character (24 bytes). If you have ten 3x3 ... functions use IY. If you disable interrupts, create your sprites, restore ... -
Mountains of Ket - Written in Basic?Was Mountains of Ket written in Basic? And if so is there any way to break into it? The parser's pretty impressive, I want to see how it was done.
... ,118,195,56,0) to disable the IM2 routine and resume ... move that down by two bytes & insert the extra command ... -
SamDisk and +3 disksFew days ago I tried to write some +3 dsk files on 3.5 inch floppy with SamDisk on old Toshiba laptop (P3 800 mhz) and his integrated fdd, but he cou…
... 250Kbps MFM, 9 sectors, 512 bytes/sector, gap3=78:
0 ... 250Kbps MFM, 9 sectors, 512 bytes/sector:
0.0 193 ... 250Kbps MFM, 9 sectors, 512 bytes/sector:
0.0 193 ... the stepping rate, and also disable the disk-change detection. Without ... -
IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…
... offset of +127 to -128 bytes though. Opcodes larger, it's ... too as long as you disable ZX Basic interrupt and set ... -
IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…
... offset of +127 to -128 bytes though. Opcodes larger, it's ... too as long as you disable ZX Basic interrupt and set ... ]
Do you need to disable the interrupts for IY? As ... -
Pac-Land: can be coloured?All versions of this game are full coloured, but not the Spectrum version. It has large sprites, but maybe the scroll is too fine to make a coloured …
... ,0 30395,0 30396,0 disable draw logo
...
;---------------------------
;750 bytes originally for logo graphics, now ...
;after buffer 110 bytes free here for other stuff ... -
Arkanoyd 2: Revenge of DohHow hard would it be to make the ball & the ship of a different color than the back ground, and so making this game playable?
... didn't find poke to disable background draw but overwrote the ... , each taking 34 bytes.
First 32 bytes are graphics - to ... be erased, then 2 bytes of attributes - to be leaved ... /> You may also export 170 bytes from my mod starting at ... -
RAM7 in 128K modelsWe are developing a game with lots of contents and we have already filled up RAM1, RAM3, RAM4 and RAM6. I was wondering if there's any problem in us…
... program:
- First 6912 bytes of RAM 7 (second screen ... .e.: COPY). In any case, bytes between $db00 and $e7ff always ... are unused.
- Last 512 bytes ($fe00 to $ffff) are free ... don't use SET1346 to disable cache, they will be corrupted ... -
A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... address 32614 and is 15678 bytes in length. Your loader takes ... )
ld de,0 ; disable cache
ld hl,128 ... -
New Game:Killer BeesI have ported one of my favourite games for the Phillips G7000 to the ZX Spectrum. Killer Bees, I spent hours playing this as a kid. The original g…
...
CPU-internal RAM: 64 bytes
Audio/video RAM: 128 ... bytes
BIOS ROM: 1024 bytes
... />
I think 64 bytes includes 8 bytes worth of registers and ... using a sprite you could disable it (or position it off ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... better, can you afford to disable interrupts while drawing? Using the ... ]EDIT: Original version takes 51 bytes and runs in 1204T. Unrolled ... loops version above takes 140 bytes and runs in 760T.[/I ... -
Pac-Land: can be coloured?All versions of this game are full coloured, but not the Spectrum version. It has large sprites, but maybe the scroll is too fine to make a coloured …
... ,0 POKE 29676,0 disable original filling screen with ... ;tileset 2 - copy 368 bytes (46 tiles) from 39991 to ... />
;---------------------------
;750 bytes originally for logo graphics, now ... /> ;after buffer 110 bytes free here for other stuff ... -
IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…
... 003f = BAS EQU #3F; Disable write
00bf = SHD ... : d33f OUT (BAS),A; Disable write
0078 : d3ff ... $00b0.
Total size 177 bytes.
[/CODE]
ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... define space with 1000 zero-bytes, I will get two error ... , it will be possible to disable the mentioned asking dialog and ...Spectaculator BlogHi All, I've decided to start a Spectaculator development blog [URL="http://www.spectaculator.com/category/blog"]here[/URL]. Normally months (somet…
... at all). The first 49179 bytes of the snapshot are otherwise ... setting somewhere in Options to disable this behaviour and I would ...AYFX .afb files<p>I've been creating sound effects using AYFX v 0.4. How do you go about implementing these files into .asm to use in a game?</p><p>I cant make…
... bit0..3 Volume
bit4 Disable T
bit5 Change Tone ... Disable N
When bit5 is set, two bytes ... set,
first two bytes of tone period, then single ...
+n (m bytes) The effects data, format is ...External Z80 CPUHi Looking for some advice if possible. Many years ago I had a plug-in board for a Spectrum 48k which had a couple of switches, a z80 CPU, and a S…
... active low signals. So to disable the internal Z80 CPU, connect ... image must be exactly 16384 bytes long, then join the two ...
