it's incomplete, buggy, and the most interisting part is missing completely =P (and for all these reasons, its not public yet)
drop me a mail or sth
| retrohackers.org https://www.retrohackers.org/ |
|
| MMC Replay control registers etc. https://www.retrohackers.org/viewtopic.php?f=6&t=372 |
Page 1 of 1 |
| Author: | hollowman [ Thu Apr 03, 2008 6:04 pm ] |
| Post subject: | MMC Replay control registers etc. |
Is there any documentation available for the mmc replay, how to access all the ram and so on? Perhaps something similar to the mmc64 hardware specificactions that is available in the documentation forum here. I have only seen documentation targeted to the end user so far. |
|
| Author: | FMan [ Fri Apr 04, 2008 12:31 am ] |
| Post subject: | |
Yes, there is. At least preliminary. |
|
| Author: | brain [ Fri Apr 04, 2008 3:29 am ] |
| Post subject: | |
And you're going to leave him ins suspense as to where to find said information? Jim |
|
| Author: | groepaz [ Fri Apr 04, 2008 3:42 am ] |
| Post subject: | |
it's incomplete, buggy, and the most interisting part is missing completely =P (and for all these reasons, its not public yet) drop me a mail or sth
|
|
| Author: | hollowman [ Fri Apr 04, 2008 6:38 am ] |
| Post subject: | |
Hehh, awesome=) Mail sent. |
|
| Author: | FMan [ Fri Apr 04, 2008 12:05 pm ] |
| Post subject: | |
brain wrote: And you're going to leave him ins suspense as to where to find said information?
That's my style.  The question was "is there" and thus my reply obviously: "yes". 
Well, look here!! |
|
| Author: | Devia [ Fri Apr 04, 2008 1:12 pm ] |
| Post subject: | |
groepaz wrote: ...the most interisting part is missing completely =P
Do you care to elaborate on that? |
|
| Author: | hollowman [ Fri Apr 04, 2008 2:27 pm ] |
| Post subject: | |
Thanks FMan! |
|
| Author: | groepaz [ Fri Apr 04, 2008 3:07 pm ] |
| Post subject: | |
[quote]Do you care to elaborate on that?[/quote] the bios mode is currently undocumented |
|
| Author: | Devia [ Fri Apr 04, 2008 4:48 pm ] |
| Post subject: | |
groepaz wrote: the bios mode is currently undocumented
 interesting how one's focus can completely blind one from the obvious 
|
|
| Author: | hollowman [ Sat Apr 05, 2008 4:19 pm ] |
| Post subject: | |
Ok, so after getting the hardware and documentation and struggling I need your help again
I've tried to get access to all the memory of the mmc replay after activating a retro replay rom, but it only behaves like an ordinary retro replay. It acts the same way when I run FMans mmc monitor, when I run it from the mmc browser it shows all rom and ram, but when running it after activating the retro replay rom it only shows the rom and ram as if it was a regular retro replay. Is it possible to get access to all ram and rom when out in basic, if so how? And if that can be solved I have another thing I dont get. This piece of code behaves like I want with a retro replay, I can write data to the ram banks of the rr, and I can then have it mapped in at $8000 while still being able to write to the c64 ram beneath it. Basically I want it to act as if I have a regular cartridge plugged in and mapped in at $8000-$A000 Code: *= $0f00 sei lda #$37 sta $01 ;write testdata to each of the banks ldx #$00 store lda #%00100011 ora addy,x sta $de00 txa sta $8000 inx cpx #$04 bne store ;read back the testdata ldx #$00 read lda #%00100000 ora addy,x sta $de00 lda #$37 sta $01 lda #$01 sta $8000 ;writes to c64 ram at $8000 lda $8000 ;reads from rr ram at $8000 sta $0400,x lda #$35 sta $01 lda $8000 ;reads from c64 ram at $8000 sta $0428,x inx cpx #$04 bne read jmp * addy .byte %00000000 .byte %00001000 .byte %00010000 .byte %00011000 This works fine but if i move the code above $1000 it crashes which seems to me like the behaviour of the ultimax mode. Isnt it possible to mimic cartridge behaviour like I wish? I guess the code in mmc replay which makes it possible to run 8 and 16k cartridges has the answer of how to do it, but before I try to locate it in the bios file I'll ask here and see if I can have all the answers served on a silver plate
|
|
| Author: | groepaz [ Sun Apr 06, 2008 1:55 pm ] |
| Post subject: | |
take a look at the "super mapper". the retro-replay and action-replay config is made to behave (almost) exactly like a real AR/RR, so you cant use full banking with them. |
|
| Author: | Devia [ Mon Apr 14, 2008 5:00 pm ] |
| Post subject: | |
A bit off-topic perhaps, but is there any documented or undocumented way of configuring the MMC Replay for Power-On Ultimax Mode? With Retro Replay this could, at least in theory , be achieved by setting the Flash Jumper and then with some HW fiddling turn the cart into a true Ultimax cart. But with no Flash Jumper, this idea goes out the window..
Why?!? you might ask? ..well.. It would be beneficial for a hardware diagnostics cartridge ROM, since it would not rely on C64 RAM. |
|
| Page 1 of 1 | All times are UTC [ DST ] |
| Powered by phpBB® Forum Software © phpBB Group https://www.phpbb.com/ |
|