Spectrum Computing

TomD

Redgatemodels wrote: ↑Mon May 20, 2024 8:48 pm Can i use the - c p option with - m?

Yes, each snapshot can have its own options

Tom

TomD

That's a shame as it would be nice to use a known working mdr. Also relies on having a tzx and then z80 to create a menu. Need to look into getting round this for home grown programs etc where no tzx/tap/z80 exists The number of known working original MDRs is very very low, and you've already seen ...

TomD

Redgatemodels wrote: ↑Mon May 20, 2024 9:52 am @TomD as an aside, when using the - m option to create the menu can I use a pre formed mdr in the command list rather that a z80?

I guess I could just try it, but thought I'd ask

Unfortunately no, it just accepts Z80 or SNA snapshots as inputs.

TomD

TomD

I did make a 3D Starstrike mdr that went through with no errors but hangs on final running though. Did you use the T2S file? https://github.com/skoolkid/t2sfiles/blob/master/t2s/0/3d-starstrike.t2s Just tried that myself and it does crash at the start. Easy to sort by using the -c option, I tried t...

TomD

Thanks Tom, I might need to chat sometime as there's a few snapshots that have hung z80onmdr this evening. Wonder if there's any options etc that might help? No worries, would be interested to see which ones. It doesn't work with every single snapshot but the number that don't work should be very l...

TomD

So now I have all 3 Horace’s, I remade the HGS so it loads with the splash screen etc. I’ll combine them on one mdr with a little basic menu and consider it done :D Lunar Jetman has also been processed, never liked it as a kid, actually bought the tape. Will add it to Jetpac and Tranz Am Z80onMDR c...

TomD

Received my prize book today, many thanks @Dr beep looking forward to reading

TomD

TomD

Some details on why here

viewtopic.php?t=8297

TomD

That's is good and no worries please ask away, glad there is interest.

TomD

TomD

First of all, @dfzx and @TomD, thank you so much for your hard work on this! It never ceases to amaze me what can be done with a modern microcontroller! I decided to build a https://github.com/TomDDG/ZXPicoIF2Lite board for my 48K Speccy, as I think it will be the perfect upgrade. I downloaded the ...

TomD

ZX81 emulation also works well

TomD

TomD

Going a bit off topic but how fast is a microdrive? Do you get raster lines during the process? Very fast, well for an 8bit computer anyway. The quoted speed is 15kB/s so if the sectors are defragmented/optimised (i.e. in sequence) you can easily load a 48k game in 3-4 seconds, 128k longer obviousl...

TomD

Just thought I would post on my experience with one of the new(ish) and inexpensive R36S handhelds which are ubiquitous at the moment, in case anybody is looking for a very cheap handheld for some Spectrum gaming on the go. I know there are loads of videos on it already so this is focused purely on ...

TomD

Also although not the same game this is how TranzAm from Ultimate was transferred to Cartridge back in the day. Assume a similar approach could be taken for JetPac. https://scontent.flba1-1.fna.fbcdn.net/v/t1.18169-9/21617698_1677724235593492_5794928763791624511_n.jpg?_nc_cat=107&ccb=1-7&_nc...

TomD

I understand about 25% of that 🤣 Looks like I need lessons.... To complicate things I am using a VDriveZX rather than a traditional microdrive If you are using a vDriveZX then you can use my Z80onMDR utility to create a microdrive cartridge with JetPac on which will do the conversion for you and re...

TomD

LunarWilly wrote: ↑Tue Apr 16, 2024 9:04 pm Fixed! I had to set the c++ compiler standard flag using
Code: Select all
./configure CXXFLAGS=-stdc++17
Cheers for your help

I had the same issue so thanks for posting as this also solved it for me. One small change is you've missed the = after std.

Code: Select all

 ./configure CXXFLAGS=-std=c++17

TomD

Thanks for sharing the code was a fun compo. If anybody is remotely interested this was my best effort with a "good" editor and a frame iteration counter, a whopping 217bytes :-) TomD ; -------------------------------------------------------------------------------------------- ; Game of L...

TomD

I fancy trying one of the new budget handhelds, good video on them here

The R36S uses ArkOS which has a Spectrum emulator, the others probably do as well but not checked.

TomD

TomD

Ah right, I realised why I never bothered with Kempston, if no Kempston is present IN31 automatically reads it as fire being pressed. That means the game starts automatically with Kempston controls even though no Kempston is connected. Following code from JetSet Willy checks if Kempston is connecte...

TomD

Easiest way to implement is:

Code: Select all

ld bc,0x001f
in a,(c)

then check which bit is set in a

fire is bit 4
up is bit 3
down is bit 2
left is bit 1
right is bit 0

Code: Select all

bit 4,a
jr nz,_thefireroutine

Some joysticks can have a second and even third fire button but they are rare.

TomD

TomD

WE HAVE A WINNER!!!!! This is a short announcement first. I am working on a full reply but..... The response was low..... 2 entries in the contest. TOM DALBY is the winner with a version in 166 bytes Peter Featherstone is second with a version in 333 bytes , so double the size. Tom's version comes ...

TomD

Got a few requests for a larger OLED as the normal 0.96" is too small to read for some. Good news is the much larger SSD1309s work fine, the 4 pin I2C versions, tested with 1.54" and the even larger 2.42". 1.54" shown in case below. I'm popping a few on eBay later if you are inte...

TomD

Sadly, these weren’t the solutions. Turns out that .szx files are default. As are the joystick settings for snapshots. I’ll keep fiddling with it, but in case anyone else has some suggestions, I’m all ears. I believe this was fixed in the new v1.6.0 version as it has this in the release note Fix ac...

TomD

Yes the best way is to force 48k ROM with paging enabled, I've also found that writing a custom loader helps. You can still use the ROM routines so it works with the SD Card devices but it does help prevent these issues. For more info take a look at a utility I created which does this (https://tomda...

TomD

Sold elsewhere

Spectrum Computing

Search found 389 matches

Re: Help with Horace

Re: Help with Horace

Re: Help with Horace

Re: Help with Horace

Re: Help with Horace

Re: Help with Horace

Re: Official result Game of Life -contest

Re: Manic Miner/Jet Set Willy no longer available

Re: Pico based Spectrum ROM interface (photoessay)

Re: Pico based Spectrum ROM interface (photoessay)

Re: Experience with R36S HandHeld

Re: Jetpac to Microdrive

Experience with R36S HandHeld

Re: Jetpac to Microdrive

Re: Jetpac to Microdrive

Re: pasmo won't compile on my mac

Re: Official result Game of Life -contest

Re: any suggestion for a good portable device that can play zx spectrum games?

Re: Kempston support

Re: Kempston support

Re: Game of Life sizecoding contest

Re: WiP Raspberry Pico Microdrive Hardware Emulator

Re: Snapshots in Fuse MacOS

Re: Bank 7 corruption while loading in Plus2A mode

Re: For Sale: ZX PicoMD Microdrive Hardware Emulator