X68000 core
Moderators: Mug UK, Zorro 2, spiny, Greenious, Sorgelig, Moderator Team
Re: X68000 core
has anyone got anything to run on this?
Replay 2, Mister, FPGA Replay + 68060 Daughterboard
Re: X68000 core
I have gotten a few things to run (not very well) on it. You can't use floppy images currently, only games converted to hard disk images, and they have to be placed on the secondary sd card. I promise you, it is not worth trying to use this core right now, wait for it to mature a bit and then revisit it another time.uigiflip wrote:has anyone got anything to run on this?
Re: X68000 core
k thanks, there is good arcade conversions on this system
Replay 2, Mister, FPGA Replay + 68060 Daughterboard
Re: X68000 core
Can someone give me an estimate on the number of LUTs used by this core? I'd like to play around with it on my Lattice ECP5 dev board which has only 40K LUTs available.
Re: X68000 core
How many LUTs does this core take up? I'd like to port it to my Lattice ECP5 dev board, but it only has 40K LUTs available.
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Re: X68000 core
If this core can be properly developed and MIDI support eventually arrives, people will be happy indeed.
Being an owner of real Sharp X68K can be a lonely road, you basically have to be ready to recap the system as a first step. I have noticed the number of X68Ks listed on Japanese auctions has dropped over the past couple years. They are definitely becoming rare outside of Japan.
Being an owner of real Sharp X68K can be a lonely road, you basically have to be ready to recap the system as a first step. I have noticed the number of X68Ks listed on Japanese auctions has dropped over the past couple years. They are definitely becoming rare outside of Japan.
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Re: X68000 core
Oh, and just in case this could help down the road somewhere, the X68K core should definitely support HDD images. There's one fan-made image you can mount in X68K emulators which has pretty much all the major games preinstalled and it would be a dream to have Mister autoboot this image using the X68K core. 16MHz setting plus FPGA overclocking options and watch all those action games flow.
Re: X68000 core
Altera doesn't count cells in LUTs. It's in ALM. So you have to figure out the translation formula.
Code: Select all
Flow Status Successful - Sat Jan 05 22:04:53 2019
Quartus Prime Version 17.0.2 Build 602 07/19/2017 SJ Standard Edition
Revision Name X68000-lite
Top-level Entity Name sys_top
Family Cyclone V
Device 5CSEBA6U23I7
Timing Models Final
Logic utilization (in ALMs) 13,322 / 41,910 ( 32 % )
Total registers 12008
Total pins 123 / 314 ( 39 % )
Total virtual pins 0
Total block memory bits 1,748,704 / 5,662,720 ( 31 % )
Total DSP Blocks 3 / 112 ( 3 % )
Total HSSI RX PCSs 0
Total HSSI PMA RX Deserializers 0
Total HSSI TX PCSs 0
Total HSSI PMA TX Serializers 0
Total PLLs 2 / 6 ( 33 % )
Total DLLs 0 / 4 ( 0 % )
Re: X68000 core
As Sorgelig said, the FPGA on the MiSTer doesn't have LUT's but ALMs. There is no precise direct conversion formula because it depends on how the LUT and the ALM are used in each case. But you can make an educated guess based on that this FPGA is marketed as having capacity equivalent to 110K-100K LUTs. And you can see Quartus reports 32% is used.ogloki wrote:Can someone give me an estimate on the number of LUTs used by this core? I'd like to play around with it on my Lattice ECP5 dev board which has only 40K LUTs available.
But you must also consider internal memory blocks. Capacity it is not only about LUTs.
Fx Cast: Atari St cycle accurate fpga core
Re: X68000 core
It's equivalent to 110K LE, not LUTs.
As cells are different in many aspects, you cannot say LUT = LE.
As cells are different in many aspects, you cannot say LUT = LE.
Re: X68000 core
Yes, sorry, LE is more correct. But in earlier, pre ALM, cyclone families, the count was the same in terms of FPGA capacity. It was one LUT per LE. E.g., the Cyclone IV device that has 110K LEs, also has 110K LUTs.Sorgelig wrote:It's equivalent to 110K LE, not LUTs.
Fx Cast: Atari St cycle accurate fpga core
Re: X68000 core
Still cells aren't equal between different manufacturers.
Re: X68000 core
Still more important: what does synthesis & p&r does with them.Sorgelig wrote:Still cells aren't equal between different manufacturers.
So, he should just try to compile it. Then he really knows ...
Re: X68000 core
The key point: X68000 is in very early stage.
Basically it's just console core with some simple graphics support.
Basically it's just console core with some simple graphics support.
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Re: X68000 core
it would be awesome to have PC-98 and -88 on MisterGehstock wrote:Sound Update
http://fpga8801.seesaa.net/archives/20190109-1.html
Re: X68000 core
It would be awesome to have everythingbitfan2011 wrote: it would be awesome to have PC-98 and -88 on Mister

Re: X68000 core
3-5 years more and may be it will be reasonable to start to port againGehstock wrote:Sound Update
http://fpga8801.seesaa.net/archives/20190109-1.html

May be some one can contact the author and he will start to develop directly on MiSTer?
Re: X68000 core
Disk Emu got an Update
http://fpga8801.seesaa.net/archives/20190309-1.htmlDiskEmu changed
Although the initial version of FD disk emulator had
read out data from the SD card by the Nios II processor for each track and developed it to the track image, the Nioss II processor seems to have been
running out due to timeout etc. because it is slow.
For the second version, the Nios II processor reads data from the SD card for each track, but
it has been speeded up by developing it to track image with hardware.
However, it seems that timeout has occurred rarely yet.
Since Nios II seems to have limitations in expanding track-by-track images, in this version,
we
changed the method of deploying disk images to the whole SDRAM when FD files were selected .
So it will wait for the conversion time when selecting the file,
but it seems that the error has almost disappeared because the load can now operate at the same speed as the actual FDD .
When writing to FD, write back to the SD card at the time of writing is done.
So
do not unplug the SD card or turn off the power while the emulator BUSY (the rightmost LED) is blinking .
If you switch to another file, you will write back the unsaved image.
At the same time, since the SASI emulator ignored the reset signal, we changed it so that it responds.
For PC88, because the SD card access method is different, the emulator itself is
designed to be compatible, but transplanting is still not done. Moreover, we can not confirm with other than 2HD.
We know that the behavior in single density (FM format) is not accurate.
(Since the track length is doubled, the time it takes for one disk revolution
has been doubled )
Re: X68000 core
The author is working on a DE0, so moving to a DE10 probably wouldn't be a big step for them, and they might appreciate having it on a platform where many people could enjoy their work. The only problem is it's a bit hard to find the contact information for them due to the language barrier. Are there any Japanese speakers that maybe want to try to figure out how to contact the author and reach out to this person to see if they can convince them of the merits of MiSTer?Sorgelig wrote: 3-5 years more and may be it will be reasonable to start to port again
May be some one can contact the author and he will start to develop directly on MiSTer?
Re: X68000 core
As far as i know, the author is a single person, and he can be easily reached on the link posted above. You can write comment in that blog in English. He will reply.kitrinx wrote:The author is working on a DE0, so moving to a DE10 probably wouldn't be a big step for them, and they might appreciate having it on a platform where many people could enjoy their work. The only problem is it's a bit hard to find the contact information for them due to the language barrier. Are there any Japanese speakers that maybe want to try to figure out how to contact the author and reach out to this person to see if they can convince them of the merits of MiSTer?
Re: X68000 core
If you insert disks on the two floppies you can load games. If you insert only in the fd0 can’t load anything.
Re: X68000 core
I will try then.Sorgelig wrote:As far as i know, the author is a single person, and he can be easily reached on the link posted above. You can write comment in that blog in English. He will reply.kitrinx wrote:The author is working on a DE0, so moving to a DE10 probably wouldn't be a big step for them, and they might appreciate having it on a platform where many people could enjoy their work. The only problem is it's a bit hard to find the contact information for them due to the language barrier. Are there any Japanese speakers that maybe want to try to figure out how to contact the author and reach out to this person to see if they can convince them of the merits of MiSTer?
Edit:
I tried for about 30 minutes to post a comment on that blog, but it seems to reject ASCII. I tried several things to convert my text to unicode, but it always returned error 3 or error 1 when I try to comment. Does anyone know how to get past this?
Re: X68000 core
Replay 2, Mister, FPGA Replay + 68060 Daughterboard