M68K for DC

[Stef]

[quote author=BlackAura link=board=dcemu;num=1083323639;start=105#108 date=05/27/04 at 09:47:27]Would you mind if I have a look at it too?[/quote]

Of course you can
And everyone else can also, but remember that's a *very* unstable version

Edit : you can download it at http://gens.consolemul.com/c68k_.zip
When you extract the archive you'll se a main directory upload which contains :
- c68k & cpu directories
- mem68k.c, mem68k.h and types.h files

c68k directory contain the C68K core itself and cpu directory contain CPU interface files.
mem68k.c & mem68k.h show how memory handler should be declared for C68K, types.h add some typos as FASTCALL, u32 definitions etc ...

C68K is both composed of generator and emulator. Generator is handled by Gen68k.c (and gen68k.inc), you can activate it in c68k.h by uncommenting C68K_GEN definition... in this case a 'main' function will be actived and generate C opcode files (c68k.ini, c68k_op0.inc ... c68k_opF.inc)
Once the core has been generated, you comment C68K_GEN to use the emulator itself (files has already been generated in the archive...)
I know the generator looks like a big mess right now, i plan to clean that later ^^

[wraggster]

THanks for your help to the Dreamcast scene stef

we may yet see a full speed Genesis emu

[Ian_micheal]

cpu/cpu68k.c: In function `M68K_C68k_Int_Callback':
cpu/cpu68k.c:14: warning: passing arg 1 of `m68k_irq_ack_callback' makes integer
from pointer without a cast
cpu/cpu68k.c:14: void value not ignored as it ought to be
cpu/cpu68k.c: In function `M68K_m68k_Int_Callback':
cpu/cpu68k.c:22: warning: passing arg 1 of `m68k_irq_ack_callback' makes integer
from pointer without a cast
cpu/cpu68k.c: In function `M68K_Init':
cpu/cpu68k.c:59: warning: passing arg 2 of `C68k_Init' from incompatible pointer
type

I gave it a fast go got that first up Not quiet sure How i should compile it.

[Stef]

[quote author=Ian_micheal link=board=dcemu;num=1083323639;start=105#112 date=05/27/04 at 19:51:53]

cpu/cpu68k.c: In function `M68K_C68k_Int_Callback':
cpu/cpu68k.c:14: warning: passing arg 1 of `m68k_irq_ack_callback' makes integer
from pointer without a cast
cpu/cpu68k.c:14: void value not ignored as it ought to be
cpu/cpu68k.c: In function `M68K_m68k_Int_Callback':
cpu/cpu68k.c:22: warning: passing arg 1 of `m68k_irq_ack_callback' makes integer
from pointer without a cast
cpu/cpu68k.c: In function `M68K_Init':
cpu/cpu68k.c:59: warning: passing arg 2 of `C68k_Init' from incompatible pointer
type

I gave it a fast go got that first up Not quiet sure How i should compile it.[/quote]

That's the famous interrupt callback stuff.
Well, just comment the M68K_C68k_Int_Callback and M68K_m68k_Int_Callback functions.

and replace :
m68k_set_int_ack_callback(M68K_m68k_Int_Callback);
by
m68k_set_int_ack_callback(m68k_irq_ack_callback);

and

C68k_Init(&C68K, m68k_irq_ack_callback);
by
C68k_Init(&C68K, NULL);


Ah yeah, something else, don't even try to compile c68kexec.c file if you don't have at least 512 MB of RAM (768 MB recommended :-/) and use -Os optimisation level, others just don't work (you can of course use -O0 too but it won't be really fast then )

[Stef]

[quote author=Wraggster link=board=dcemu;num=1083323639;start=105#111 date=05/27/04 at 18:33:05]THanks for your help to the Dreamcast scene stef

we may yet see a full speed Genesis emu [/quote]

No have to thanks, i'm taking many fun with that
Having full speed Genesis emu is just my wish

[Christuserloeser]

[quote author=Wraggster link=board=dcemu;num=1083323639;start=105#111 date=05/27/04 at 18:33:05]we may yet see a full speed Genesis emu [/quote]

;D Great thing that would be indeed!

[DemoniusX]

the day that Full speed genesis emu comes to use, sleep will no longer be apart of my life, LOL

[Christuserloeser]

You just wrote what I thought

[Ian_micheal]

[quote author=Stef link=board=dcemu;num=1083323639;start=105#113 date=05/28/04 at 09:15:35]

That's the famous interrupt callback stuff.
Well, just comment the M68K_C68k_Int_Callback and M68K_m68k_Int_Callback functions.

and replace :
m68k_set_int_ack_callback(M68K_m68k_Int_Callback);
by
m68k_set_int_ack_callback(m68k_irq_ack_callback);

and

C68k_Init(&C68K, m68k_irq_ack_callback);
by
C68k_Init(&C68K, NULL);


Ah yeah, something else, don't even try to compile c68kexec.c file if you don't have at least 512 MB of RAM (768 MB recommended :-/) and use -Os optimisation level, others just don't work (you can of course use -O0 too but it won't be really fast then )
[/quote]

c68kexec.c file found out the hard way about that. Ok thanks.

[Ian_micheal]

genesis.o: In function `gen_init':
genesis.o(.text+0x5c): undefined reference to `m68k_set_cpu_type'
genesis.o(.text+0x60): undefined reference to `m68k_get_reg'
genesis.o(.text+0x64): undefined reference to `m68k_pulse_reset'
genesis.o: In function `gen_reset':
genesis.o(.text+0xf8): undefined reference to `m68k_get_reg'
genesis.o(.text+0x114): undefined reference to `m68k_pulse_reset'
genesis.o: In function `gen_shutdown':
genesis.o(.text+0x21c): undefined reference to `m68k_get_reg'
vdp.o: In function `vdp_reg_w':
vdp.o(.text+0x7ac): undefined reference to `m68k_set_irq'
vdp.o: In function `vdp_hvc_r':
vdp.o(.text+0x9ac): undefined reference to `m68k_cycles_run'
system.o: In function `system_frame':
system.o(.text+0x3c4): undefined reference to `m68k_execute'
system.o(.text+0x3ec): undefined reference to `m68k_set_irq'
mem68k.o: In function `m68k_lockup_w_8':
mem68k.o(.text+0x88): undefined reference to `M68K_GetPC'
mem68k.o(.text+0x98): undefined reference to `M68K_EndExec'
mem68k.o: In function `m68k_lockup_w_16':
mem68k.o(.text+0xc8): undefined reference to `M68K_GetPC'
mem68k.o(.text+0xd8): undefined reference to `M68K_EndExec'
mem68k.o: In function `m68k_lockup_r_8':
mem68k.o(.text+0x104): undefined reference to `M68K_GetPC'
mem68k.o(.text+0x110): undefined reference to `M68K_EndExec'
mem68k.o: In function `m68k_lockup_r_16':
mem68k.o(.text+0x140): undefined reference to `M68K_GetPC'
mem68k.o(.text+0x14c): undefined reference to `M68K_EndExec'
cpu/cpu68k.o: In function `M68K_Disassemble':
cpu/cpu68k.o(.text+0x48): undefined reference to `m68k_disassemble'
collect2: ld returned 1 exit status

Got this now must be missing a file ive not included to compile or makefile is not correct.