Dumitrache, Nicolae

Next186 SoC PC

Hi! Thanks for this core. I've ported it to the MiST board, and did some enhancements, if interested:
https://github.com/gyurco/Next186

(However VGA would need some more care to make it even more compatible - a big topic would be font handling, both in BIOS and HDL, look at SimCity for example.)

Some enhancements

If you modify one line in module "Next186_CPU.V" line 1640 aprox.

Anything like this:
end else begin
	MREQ = 1'b0;
	ISIZE = 1; // jepalza, antes "0", sirve para engañar a algunos programas que detectan CPU y se cuelgan
	IRQ = 1'b1;
end

you can trick CPU as seen by dos, like 80286. With this trick, many programs run correctly, like "EM8087.EXE"

See the cpu as an 80286 ;-)

Would it be possible to support CGA in the future? Many old games made exclusive use of it. Thank you very much for this great core.

Support CGA 320x200 4Color

I have run NEXT186 system on DE-115 Board,Boot OS use MSDOS6.22
config.sys file content,
DOS=UMB
DEVICEHIGH=C:\286\FDXMS286.SYS INT15=2048
DEVICEHIGH=C:\286\EMM286.EXE 4096
FILES = 30

I have been test follow software,Not all normal start , 
  details:
  1.windows 3.0  ,system halt 
  2.BattleChess4000   ,Screen display confuse(I have try setup.exe that change video card)
  3.Breadbox Ensemble v4.1.2   ,install finish ,run error and Screen confuse

Can you provide a boot IMG file , it support VESA 640X480 256Color software,
or give me some suggest 
Thanks

Support VESA 640X480 256Color

My DE-115 Borad,download NEXT168 Fireware,install follow software,
.MSDOS6.22
.Turbo C 2.0
Use  TC20 and load BGIDEMO.c,Compile this file and run it in Graphic mode,first page some text display random code?
I check the code when use gprintf(&x,&y,"XXXXXX...",xx,yy) ,appear this issue.

Graphic mode display text issue

With the instructions I could not create the SD bootable or not to do you could help me. Thank you

SD BOOT

Now I'm trying to use Next186 with FleaFPGA, I extended "Next186_Soc_SDRAM_Lattice MachXO2-7000HE.7z" file, and build with Lattice Diamond (64 bit Windows 3.3.0.109).
The tool said these 4 files are missing.
  Next186/Next186_ALU.v
  Next186/Next186_BIU_2T_delayread.v
  Next186/Next186_CPU.v
  Next186/Next186_Regs.v

I could'nt find these files in HW or SW directories, too.

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Next186 SoC PC