[CSDb] - User Forums - Sid Duzz It

You are not logged in - nap

CSDb User Forums

Forums > C64 Composing > Sid Duzz It

2006-08-08 14:34

Stainless Steel

Registered: Mar 2003
Posts: 966

Sid Duzz It

Hi'yall,

I was wondering who else is using Shape's SDI editor around here. I would like to talk about the editor with other users about their experiences with it and maybe some technical blah blah aswell.

Cheers!

... 169 posts hidden. Click here to view all posts....

2009-09-21 17:14

clonK
Account closed

Registered: Aug 2008
Posts: 65

Quote: Make sure to set the CIA speedflag to 1 in Sidedit.

It is m8.
Like I said, it works fine in the MMC replay built-in sid player, just not in sidplay2 on windows.

2009-09-21 18:11

SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238

it works and dont change the adresses.
look very carefully - the last used address is 0fff, not 1000!

when you move the code, the byte which is used as counter must be changed, the byte for jmp table self mody must be changed too.

just use it as is, it only goes to 0fff

2009-09-22 00:07

clonK
Account closed

Registered: Aug 2008
Posts: 65

This is what I did. Code starts at $0FCA. This works with normal sid players but not with sidplay2 on the PC:

If I try inputting the code starting at $0FCB, then the last ORA overwrites $1000 with BRK. If I load the tune after I write the code starting at $0FCB, then $0FFF changes from ORA #$00 to ORA #$4C:

So, now I totally confused.

p.s. down with using emulators to listen to C64 music, but there are a lot of people out there that do and each to their own. I'm a sound man at heart and there aint nothin as good as the real circuitry no matter what anyone may argue back at me. Convenience can bleh... convenience don't make sound.

2009-09-22 12:12

SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238

if you overwrite 0fff/1000 with anything wrong, you overwrite it with something wrong :)

try loading the tune like this: L"tune",8,1000

dont be fooled by offbeat byte display.
when you want to see that 1000 is ok, write: "D1000"

in your picture, the music starts at 1003, so clearly you have loaded it there, which is wrong.

when you write D 0FFF, and it says ora #$4D, its correct!
the 4D is in 1000, and means JMP, so actually nothing is wrong!

use the code i pasted, save it 0fcb,1000 with monitor, and load your tune to 1000, and all is correct.

2009-09-22 18:23

Stainless Steel

Registered: Mar 2003
Posts: 966

Wasn't it 4c for JMP ?

2009-09-22 18:50

Stone

Registered: Oct 2006
Posts: 176

@clonK: What you seem to be missing is that the 6510 machine language instructions take up either 1,2 or 3 bytes of memory. ORA #Imm in particular, takes up 2 bytes. The first byte ($0fff) is the actual instruction op-code and the second ($1000) is the instruction operand, or parameter if you will. Thus any change to address $1000 (which would occur if you load something to this address), will be seen as a change to the disassembly of the (2-byte) instruction at address $0fff. If nothing else, the disassembler should give you a hint about what's going on: The next instruction disassembled is not at $1000, but at $1001.

2009-09-22 19:07

clonK
Account closed

Registered: Aug 2008
Posts: 65

Quote: if you overwrite 0fff/1000 with anything wrong, you overwrite it with something wrong :)

try loading the tune like this: L"tune",8,1000

dont be fooled by offbeat byte display.
when you want to see that 1000 is ok, write: "D1000"

in your picture, the music starts at 1003, so clearly you have loaded it there, which is wrong.

when you write D 0FFF, and it says ora #$4D, its correct!
the 4D is in 1000, and means JMP, so actually nothing is wrong!

use the code i pasted, save it 0fcb,1000 with monitor, and load your tune to 1000, and all is correct.

I had not loaded it to $1003, I had definitely loaded it to $1000. Look again at the first image; $1000 is jmp $1906, exactly the same as where I loaded the music in the second image, but, as I wrote, $1000 gets overwritten by the ora #$00 which is at $0fff. Read the text in the bottom image, below where I did d1000 to show what the value of $1000 became after I changed $0fff.
Anyway, I'm going to try this all again and not bother that $0fff turns into ora #$4c, and see what happens then.
Fingerz crossed

2009-09-22 19:54

clonK
Account closed

Registered: Aug 2008
Posts: 65

Cool. It's all working now :)
Thanks a lot.
The thing that stumped me was that I thought 0fff had to be ORA #$00, but I left it as:

and that works.
Another thing that stumped me was that in Sidedit I have to make sure to leave the loadAddress at $0000 otherwise sidplay2 won't play it but the mmc replay sid player will.
So, actually, that was the only problem with the code I started at 0fca. That is by the by now though because I know I can start at 0fcb now and let 0fff become $4c.
Thanks again :)
Finally

2009-09-22 21:16

SIDWAVE
Account closed

Registered: Apr 2002
Posts: 2238

well, if you understand the small routine, you can place it anywhere.

2010-08-01 01:23

clonK
Account closed

Registered: Aug 2008
Posts: 65

Hey all... A few questions regarding the SDI player.

I know to make sure that I don't have any pointers to empty instruments, filter table, etc, etc, but I'm having a problem where my tune doesn't sound right when I use the sync bit. I'm starting to suspect that it's because I'm using the sync bit on channel 3. But it sounds fine in the editor. hmmm. I dunno... I'm not an expertXor.

Question 1:
I have used instruments 00 to 10, but I found I didn't need to use INST number 06 in my sequences, so I've just filled it with zero's. Do I have to shuffle all my instrument programs back to fill the gap left by instrument 06? I suppose I could do this by switching the last (10) instrument to 06. Would this have an effect on the player?

Question 2:
After building up a track I have used sequences up to $44 but there are 12 sequences scattered within that range that I have set to "unused" because they are not needed in my arrangement any more. Would this have an effect on the player? If so, I'd have to spend an age (5 hours at least) having to shuffle them about.

Question 3:
Why are z8 and z9 just a list of zero's?
What are z8 and z9?

I can send my sdi tune on request if someone is interested.

Cheers.

Previous - 1 | ... | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ... | 18 - Next

Refresh

Subscribe to this thread:

You need to be logged in to post in the forum.

Search the forum:
Search for in
All times are CET.

Search CSDb

Advanced

Users Online

Toggle/Padua
REBEL 1/HF
Pac
Guests online: 281

Top Demos

1 Next Level  (9.7)
2 13:37  (9.7)
3 Codeboys & Endians  (9.7)
4 Mojo  (9.6)
5 Coma Light 13  (9.6)
6 Edge of Disgrace  (9.6)
7 Signal Carnival  (9.6)
8 Uncensored  (9.5)
9 Wonderland XIV  (9.5)
10 No Bounds  (9.5)

Top onefile Demos

1 Nine  (9.7)
2 Layers  (9.6)
3 Cubic Dream  (9.6)
4 Party Elk 2  (9.6)
5 Copper Booze  (9.5)
6 Scan and Spin  (9.5)
7 Onscreen 5k  (9.5)
8 Grey  (9.5)
9 Dawnfall V1.1  (9.5)
10 Rainbow Connection  (9.5)

Top Groups

1 Artline Designs  (9.3)
2 Booze Design  (9.3)
3 Oxyron  (9.3)
4 Performers  (9.3)
5 Censor Design  (9.3)

Top Cover Designers

1 Duce  (9.8)
2 Electric  (9.8)
3 Junkie  (9.6)
4 The Elegance  (9.5)
5 Mermaid  (9.3)

Page generated in: 0.046 sec.