F
Fanatic 64
Guest
There are like 25 KB or so left for RDP.
Announcement: Cycle-accurate N64 development underway.
- Thread starter MarathonMan
- Start date
olivieryuyu
New member
looking forward to seeing actual results, even very slow 
OP
MarathonMan
Emulator Developer
- Thread Starter
- #284
It fits! From 'pahole':
And I've got more than enough room for all the other doodads I need for full system simulation.
Ever since SM64 has been executing threads, I've been reverse engineeering it and trying to get it to start having the RSP send commands to the RDP over the xbus.
Code:
struct RSP {
uint8_t dmem[4096]; /* 0 4096 */
/* --- cacheline 64 boundary (4096 bytes) --- */
uint8_t imem[4096]; /* 4096 4096 */
/* --- cacheline 128 boundary (8192 bytes) --- */
...
...
...
/* size: 10272, cachelines: 161, members: 7 */
/* last cacheline: 32 bytes */
};And I've got more than enough room for all the other doodads I need for full system simulation.
Ever since SM64 has been executing threads, I've been reverse engineeering it and trying to get it to start having the RSP send commands to the RDP over the xbus.
OP
MarathonMan
Emulator Developer
- Thread Starter
- #286
No, it'll only feel wholly with 64KB L1D. 32K will hold most of the important stuff and everything else will just have a small latency coming out of L2, so no big deal.
OP
MarathonMan
Emulator Developer
- Thread Starter
- #288
No, absolutely not. You also have to remember that not all of the memory will be used anyways; most of the ICache will be unused and swapped in on an as-needed basis.
OP
MarathonMan
Emulator Developer
- Thread Starter
- #293
Not much news as of now... I think there's an issue somewhere that's preventing the interrupt handler doing it's business. I've been putting crazy hours in at work this past few weeks, so I haven't got much time to play with it.
Yes... I formerly had the project up there... still haven't decided a license. I'm leaning towards GPLv3.
If there are any other developers out there, it might help me push it out faster.
Yes... I formerly had the project up there... still haven't decided a license. I'm leaning towards GPLv3.
If there are any other developers out there, it might help me push it out faster.
You may start a thread in PJ64's official forum, I have seen many technical discussion about RSP and RDP here (and you were here tooIf there are any other developers out there, it might help me push it out faster.
).
OP
MarathonMan
Emulator Developer
- Thread Starter
- #295
You may start a thread in PJ64's official forum, I have seen many technical discussion about RSP and RDP here (and you were here too
Iconoclast seems to be the only one who actively contributes though, and he's vanished for the last month.
It might be a dead channel, but there's always #n64dev on efnet. I saw it listed on the cic decapping page anyway.
JS irc client: http://chat.efnet.org:9090/
JS irc client: http://chat.efnet.org:9090/
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OP
MarathonMan
Emulator Developer
- Thread Starter
- #298
Been using MESS's internal debugger, but thanks... that is a neat tool!
EDIT: I may have found the bug.
Need to implement a couple more instructions to be sure.
Last edited:
OP
MarathonMan
Emulator Developer
- Thread Starter
- #299
Huzzah, found the bug. Man, do I feel stupid after realizing what it was.
Things are rolling along very smoothly again!
Things are rolling along very smoothly again!
F
Fanatic 64
Guest
Was it really a dumb bug?Huzzah, found the bug. Man, do I feel stupid after realizing what it was.
Things are rolling along very smoothly again!