Announce (tech) demos or games releases
Moderator: Mask of Destiny
-
8bitwizard
- Very interested
- Posts: 159
- Joined: Sat Feb 24, 2007 11:35 pm
- Location: San Antonio, TX
Post
by 8bitwizard » Tue Jan 27, 2009 11:42 pm
TmEE co.(TM) wrote:CLR, BTST and some other instructions cannot be used with VDP
That is correct. CLR is a read/modify/write instruction just like AND and OR, even though it ignores the read value.
I learned this years ago when working on a boot rom for a 68000 system that used parity RAM. This was in the initial memory clear loop, and it basically crashed with a bus error right away because it tried to read the uninitialized RAM.
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Wed Jan 28, 2009 2:32 am
Umm, I've got rid of almost all CLRs in my prog, only a few left, but none to the VDP. And now the prog jumps over the RAM checker.
Please test it again
-
ScroGer
- Interested
- Posts: 17
- Joined: Fri Jan 23, 2009 12:29 am
Post
by ScroGer » Wed Jan 28, 2009 7:04 am
OMG IM BUSTING A FUCKING NUT AS WE SPEAK, THIS IS SOOOOOOOOOOOOOOOOOOOOOOOOOOO DAMN COOL
-
TmEE co.(TM)
- Very interested
- Posts: 2440
- Joined: Tue Dec 05, 2006 1:37 pm
- Location: Estonia, Rapla City
-
Contact:
Post
by TmEE co.(TM) » Wed Jan 28, 2009 5:16 pm
Holy kaka
-
Shiru
- Very interested
- Posts: 786
- Joined: Sat Apr 07, 2007 3:11 am
- Location: Russia, Moscow
-
Contact:
Post
by Shiru » Wed Jan 28, 2009 5:25 pm
TmEE, not all people uses resolution >2048, so please, scale down your photos (use thumbnails or something).
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Wed Jan 28, 2009 5:37 pm
WHAT!
LOOL is that the real thing? Did you alter anything?
-
TmEE co.(TM)
- Very interested
- Posts: 2440
- Joined: Tue Dec 05, 2006 1:37 pm
- Location: Estonia, Rapla City
-
Contact:
Post
by TmEE co.(TM) » Wed Jan 28, 2009 5:51 pm
That is from my MD2, and I used the latest greatest ROM, and did not do any changes to it...
Do you initialize all variables ? RAM is full of garbage on startup on real HW.... that caused me a lot of headache when I made Glass Breaker MD.
Shiru wrote:TmEE, not all people uses resolution >2048, so please, scale down your photos (use thumbnails or something).
Sorry for that, I was in a hurry...
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Wed Jan 28, 2009 5:56 pm
It should "detect" zero RAM now becuase I jump over it...
Does the color animates?
Seems some kind of garbage in plane A.
Press B
-
HardWareMan
- Very interested
- Posts: 745
- Joined: Sat Dec 15, 2007 7:49 am
- Location: Kazakhstan, Pavlodar
Post
by HardWareMan » Thu Jan 29, 2009 3:37 am
Once, I've got same thing. I forgot to erase all 64K of VRAM and when I used PlaneA with priority bit (I though this is enought) I've still got garbage. And not on transparent color. Here is proof pics:
Last edited by
HardWareMan on Thu Jan 29, 2009 3:47 am, edited 1 time in total.
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Thu Jan 29, 2009 3:39 am
At last it runs (acheivement unlocked
) ! Well sort of... I'll try to fix that tomorrow..
-
TmEE co.(TM)
- Very interested
- Posts: 2440
- Joined: Tue Dec 05, 2006 1:37 pm
- Location: Estonia, Rapla City
-
Contact:
Post
by TmEE co.(TM) » Thu Jan 29, 2009 6:34 am
I must notice that I need a lot of hard and soft resets to get it sort of running... sometimes the system boots up with VDP outputting wrong sync or something, freaky...
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Thu Jan 29, 2009 9:29 pm
Done and reupped. I hope it looks ok...
Re-enabled RAM capacity checker.
-
ScroGer
- Interested
- Posts: 17
- Joined: Fri Jan 23, 2009 12:29 am
Post
by ScroGer » Mon Feb 02, 2009 5:31 pm
so whats the point???????
-
TmEE co.(TM)
- Very interested
- Posts: 2440
- Joined: Tue Dec 05, 2006 1:37 pm
- Location: Estonia, Rapla City
-
Contact:
Post
by TmEE co.(TM) » Mon Feb 02, 2009 5:49 pm
to do things you cannot do in BEX
I need to check the ROM....
-
Jorge Nuno
- Very interested
- Posts: 374
- Joined: Mon Jun 11, 2007 3:09 am
- Location: Azeitão, PT
Post
by Jorge Nuno » Mon Feb 02, 2009 9:24 pm
TmEE co.(TM) wrote:to do things you cannot do in BEX
I need to check the ROM....
Don't forget to press B (assuming it works), and doing random moves to $C0001E or something...