MiSTer FPGA Forum

KnC wrote: ↑Mon Jun 01, 2020 12:10 pm

tontonkaloun wrote: ↑Mon Jun 01, 2020 11:29 am the file "font.rom" that i have, don't drop me at the correct offset address for the next file. Where to find the right one?

I'm too far: 19800 instead of 19000

take the last 4kb from the font.bin and use that as cfont.bin

offset 0800 to the end

puu wrote: ↑Mon May 25, 2020 9:53 am Due to copyright issues, some files may not be included in the archive.
I'm sorry that the attached document is written in Japanese. (Because I can understand only C, VHDL and Japanese)
Probably the missing one is the font file.
Save the 8x16 dot font file as Font/fonth.hex.
Since there is an 8x16dot part in FONT ROM(0x0800-0x17ff), I think that you should extract that part with a binary editor and save it as .hex.

yubm12 wrote: ↑Wed Jun 03, 2020 7:51 pm Hello All - I'm new here, and to the MiSTer in general. I got mine a couple of weeks ago and have been really digging it. Can someone help me out with this core? I can't find the readme/any documentation on how to set it up. Would love to try out Super Mario Bros Special, but I'm at a loss of what to do. Any help would be greatly appreciated.

tontonkaloun wrote: ↑Wed Jun 03, 2020 9:12 pm

yubm12 wrote: ↑Wed Jun 03, 2020 7:51 pm Hello All - I'm new here, and to the MiSTer in general. I got mine a couple of weeks ago and have been really digging it. Can someone help me out with this core? I can't find the readme/any documentation on how to set it up. Would love to try out Super Mario Bros Special, but I'm at a loss of what to do. Any help would be greatly appreciated.

Hello,

You need the core (.rbf file) in the _Computer folder
In the bootom directory you put the boot rom pc8801mk2sr.rom


Then you need a second SD card formatted in exfat for example on which you put your files * .d88

tontonkaloun wrote: ↑Wed Jun 03, 2020 9:12 pm

yubm12 wrote: ↑Wed Jun 03, 2020 7:51 pm Hello All - I'm new here, and to the MiSTer in general. I got mine a couple of weeks ago and have been really digging it. Can someone help me out with this core? I can't find the readme/any documentation on how to set it up. Would love to try out Super Mario Bros Special, but I'm at a loss of what to do. Any help would be greatly appreciated.

Hello,

You need the core (.rbf file) in the _Computer folder
In the bootom directory you put the boot rom pc8801mk2sr.rom


Then you need a second SD card formatted in exfat for example on which you put your files * .d88

AmigoMexicano wrote: ↑Thu Jun 04, 2020 1:32 am I've been told that the boot.rom file goes inside: /media/fat/PC8801mk2SR

I still can't use this core, until my SDRAM board arrives, so I can't check this for sure.

So, where does it go?

Sorgelig wrote: ↑Mon May 25, 2020 9:58 pm @puu,
do PC88 and X68000 use NEC uPD765 as a floppy controller?

NEC uPD765 Floppy Disk Controller: Internally this is a microcoded part with a primative controller of NEC’s own design. Testing microcode embedded in a part can be troublesome. The uPD765 had a few extra gates associated with the DMA Request and DMA Ack pins. Presenting a certain illegal combination here places the part into a “test” mode and allows the sequencer microcode to be output on the normal Data pins. The sequencer microcode is responsible for high level commands such as Read Track, Recalibrate, Format Track, or Write Data. There is a similar test mode for the nano-code array which serializes data at the floppy disk head.

zomgugoff wrote: ↑Thu Jun 04, 2020 7:22 am

AmigoMexicano wrote: ↑Thu Jun 04, 2020 1:32 am I've been told that the boot.rom file goes inside: /media/fat/PC8801mk2SR

I still can't use this core, until my SDRAM board arrives, so I can't check this for sure.

So, where does it go?

That is the correct location

AmigoMexicano wrote: ↑Fri Jun 05, 2020 10:47 pm

zomgugoff wrote: ↑Thu Jun 04, 2020 7:22 am

AmigoMexicano wrote: ↑Thu Jun 04, 2020 1:32 am I've been told that the boot.rom file goes inside: /media/fat/PC8801mk2SR

I still can't use this core, until my SDRAM board arrives, so I can't check this for sure.

So, where does it go?

That is the correct location

OK, my SDRAM board finally arrived, and I can confirm, that is the correct location, everything works like a charm!

puu wrote: ↑Tue Jun 09, 2020 3:38 pm All FDDs are written to SDRAM once and then delayed back to the image. If the red progress bar goes to the far right, the write back is complete, but if there is another write during the write back, the write back should be repeated again.
From the FDC's point of view, writing to SDRAM is always performed normally whether it is writing back or not.
If you are worried, select EJECT to write back again.

puu wrote: ↑Wed Jun 10, 2020 3:57 am Did you use an existing image for the user disk? Did you create a new one?
What kind of media type (2D/2DD/2HD) did you choose when newly created? In the era of PC-88, the mainstream is 2D, so I think there is no problem if you choose 2D unless otherwise specified. FDC is doing PIO transfer with sub CPU, but I think that it may not work because Z80 is so hard for 2HD 's 500kbps transmit speed.