M68K for DC

[Alexvrb]

[quote author=Wraggster link=board=dcemu;num=1083323639;start=255#268 date=07/19/04 at 15:14:14]i would say fpse is a better emu but are the sources available, i doubt it
[/quote]Even if it was, is it any faster, because speed is the biggest issue. Also, even if THAT was true, it wouldn't matter because you'd eventually have to rewrite almost everything anyway.

[wraggster]

pity there wasnt a C to sh4 asm converter :P

[guymelef]

even if there was it would probably just be sloppy and break emulation.
but nice thought

[BlackAura]

[quote author=Wraggster link=board=dcemu;num=1083323639;start=270#271 date=07/20/04 at 14:32:12]pity there wasnt a C to sh4 asm converter :P[/quote]

There is - it's called GCC.

[Alexvrb]

But guy was right, it IS sloppy and can break emulation. :P

[Mekanaizer]

Wraggster wrote:

pity there wasnt a C to sh4 asm converter :P

BlackAura wrote:

There is - it's called GCC.

Yes there is BlackAura i know you know the 'call' but here it is for those who don't know:

sh-elf-gcc -S C_input_file_name.c Asm_output_file_name.s

note: the 'call' is -S and not -s (anyway -s some times work may depende on the gcc version i don't know for sure). And the convertion needs work since gcc only output 'good' Assembly code for the sh4 geral registers and 'not so good' for FPU registers. Anyway it is a good help to help code Asm stuff. ;D

-Mekanaizer-

[wraggster]

any updates on the 68k core, it seems to have gone very quiet?

[fox68k]

Hello everyone,

i am new in this great community! 8)

Well, first of all, thanks goes out for all of you working on M68K for DC and specially to Ian and Stef for his hard work.

I wanted to help with my grain of sand and i have been working on a 68k emu for DC for a while. It is an interpreter written is SH4 asm and it is working right now but there are left many opcodes and management routines to get it completed.

I am sure this core will be faster than any C core. Some people were talking about that an asm core will not boost emulation too much but i'd say wait for results. I didn't test my core against Musashi or C68K so i won't say nothing at this moment. We will see (i hope ).

Finally, i'd like to get in contact with someone that can help me to get this core into Genesis Plus or NeoGeoCD in a near future.

Any idea or suggestion will be much appreciated.

Thanks!

[wraggster]

Blackaura / Ian you there

[quzar]

I can put it into NeoCD. I first put C68k into it, so im fairly familiar with the CPU interfaces.