Video Display Processor

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Understanding VDP

Last post by mickagame « Tue May 26, 2015 7:51 pm
Replies: 10
by mickagame » Sun May 24, 2015 7:30 pm

10 Replies

22110 Views

Last post by mickagame
Tue May 26, 2015 7:51 pm
VRAM range

Last post by MintyTheCat « Sat Mar 21, 2015 10:24 pm
Replies: 1
by tryphon » Fri Mar 20, 2015 9:32 pm

1 Replies

7977 Views

Last post by MintyTheCat
Sat Mar 21, 2015 10:24 pm
Text, different color, one pal

Last post by KanedaFr « Wed Feb 25, 2015 9:11 pm
Replies: 2
by KanedaFr » Wed Feb 18, 2015 11:11 pm

2 Replies

8875 Views

Last post by KanedaFr
Wed Feb 25, 2015 9:11 pm
DMA memory to VRAM

Last post by Chilly Willy « Wed Jan 21, 2015 1:04 am
Replies: 18
by KanedaFr » Tue Jan 13, 2015 4:33 pm
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2
18 Replies

33138 Views

Last post by Chilly Willy
Wed Jan 21, 2015 1:04 am
VDP Internals

Last post by Charles MacDonald « Sat Jan 03, 2015 10:29 pm
Replies: 56
by Mask of Destiny » Tue Nov 06, 2012 11:44 am
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4
56 Replies

141057 Views

Last post by Charles MacDonald
Sat Jan 03, 2015 10:29 pm
Vdp Signal

Last post by tomaitheous « Fri Dec 19, 2014 5:58 pm
Replies: 4
by mickagame » Wed Oct 08, 2014 8:29 pm

4 Replies

13092 Views

Last post by tomaitheous
Fri Dec 19, 2014 5:58 pm
0xC000 VRAM stuff, and efficiency question.

Last post by Chilly Willy « Tue Sep 23, 2014 5:47 pm
Replies: 4
by Count SymphoniC » Mon Sep 22, 2014 11:40 pm

4 Replies

10371 Views

Last post by Chilly Willy
Tue Sep 23, 2014 5:47 pm
Hex values for VDP registers...

Last post by tryphon « Tue Sep 23, 2014 9:28 am
Replies: 5
by Count SymphoniC » Mon Sep 22, 2014 5:51 pm

5 Replies

11996 Views

Last post by tryphon
Tue Sep 23, 2014 9:28 am
VDP register questions regarding the Sonic 1 disassembly

Last post by MintyTheCat « Wed Sep 17, 2014 4:49 pm
Replies: 1
by BigEvilCorporation » Wed Sep 17, 2014 12:11 pm

1 Replies

7618 Views

Last post by MintyTheCat
Wed Sep 17, 2014 4:49 pm
sprite attribute table

Last post by Eke « Thu Jul 03, 2014 10:57 am
Replies: 13
by powerofrecall » Tue Jul 01, 2014 1:32 am

13 Replies

18826 Views

Last post by Eke
Thu Jul 03, 2014 10:57 am
Confused about VRAM nametables (tiletables) sizes

Last post by Stef « Sun May 04, 2014 9:19 am
Replies: 6
by realbrucest » Wed Apr 30, 2014 11:15 pm

6 Replies

13412 Views

Last post by Stef
Sun May 04, 2014 9:19 am
Every 8 lines scrolled horizontally

Last post by Charles MacDonald « Mon Mar 24, 2014 8:25 pm
Replies: 3
by M-374 LX » Mon Mar 24, 2014 1:50 pm

3 Replies

9661 Views

Last post by Charles MacDonald
Mon Mar 24, 2014 8:25 pm
Palette changing only every two lines

Last post by Chilly Willy « Sun Mar 23, 2014 6:37 pm
Replies: 3
by M-374 LX » Sun Mar 23, 2014 2:12 am

3 Replies

10641 Views

Last post by Chilly Willy
Sun Mar 23, 2014 6:37 pm
Best looking palette fade - what's your opinion?

Last post by powerofrecall « Sat Jan 11, 2014 6:25 pm
Replies: 6
by powerofrecall » Thu Jan 09, 2014 1:37 am

6 Replies

14209 Views

Last post by powerofrecall
Sat Jan 11, 2014 6:25 pm
DMA setup performance penalty?

Last post by djcouchycouch « Mon Jan 06, 2014 8:09 pm
Replies: 8
by djcouchycouch » Sat Jan 04, 2014 10:49 pm

8 Replies

11288 Views

Last post by djcouchycouch
Mon Jan 06, 2014 8:09 pm
VDP color $E

Last post by Charles MacDonald « Fri Oct 18, 2013 3:57 am
Replies: 3
by r57shell » Wed Oct 16, 2013 5:42 pm

3 Replies

7561 Views

Last post by Charles MacDonald
Fri Oct 18, 2013 3:57 am
VDP Question

Last post by TmEE co.(TM) « Sun Sep 29, 2013 8:43 am
Replies: 1
by walker7 » Sun Sep 29, 2013 8:29 am

1 Replies

4917 Views

Last post by TmEE co.(TM)
Sun Sep 29, 2013 8:43 am
Some noob question about VDP

Last post by tryphon « Fri Aug 23, 2013 8:37 pm
Replies: 4
by tryphon » Fri Aug 23, 2013 10:15 am

4 Replies

7879 Views

Last post by tryphon
Fri Aug 23, 2013 8:37 pm
HInt Counter timing

Last post by mitchConnor « Fri Jul 19, 2013 12:04 pm
Replies: 2
by mitchConnor » Fri Jul 19, 2013 11:32 am

2 Replies

6218 Views

Last post by mitchConnor
Fri Jul 19, 2013 12:04 pm
Questions related to the vpd

Last post by TmEE co.(TM) « Tue Jul 02, 2013 1:54 am
Replies: 7
by eteream » Thu Jun 27, 2013 6:35 pm

7 Replies

17914 Views

Last post by TmEE co.(TM)
Tue Jul 02, 2013 1:54 am
Accurate Mapping of MD 9-bit to 24-bit Colour-Codes

Last post by r57shell « Sun Jun 09, 2013 6:01 pm
Replies: 20
by MintyTheCat » Mon Mar 04, 2013 6:46 pm
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2
20 Replies

28031 Views

Last post by r57shell
Sun Jun 09, 2013 6:01 pm
DMA to VRAM from RAM

Last post by r57shell « Wed Jun 05, 2013 1:12 am
Replies: 21
by r57shell » Tue Jun 04, 2013 12:45 am
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2
21 Replies

22899 Views

Last post by r57shell
Wed Jun 05, 2013 1:12 am
Freeze the screen while updating the VRAM

Last post by Stef « Wed May 08, 2013 10:11 am
Replies: 8
by Bitybity » Fri Jan 25, 2013 1:01 am

8 Replies

11472 Views

Last post by Stef
Wed May 08, 2013 10:11 am
Masking (hidding) priority sprites, how?

Last post by Charles MacDonald « Thu May 02, 2013 7:33 pm
Replies: 6
by eteream » Wed May 01, 2013 11:21 pm

6 Replies

8710 Views

Last post by Charles MacDonald
Thu May 02, 2013 7:33 pm
VDP odds and ends

Last post by Chilly Willy « Tue Mar 19, 2013 5:18 am
Replies: 19
by Charles MacDonald » Sat Mar 09, 2013 6:09 am
1

2
19 Replies

23375 Views

Last post by Chilly Willy
Tue Mar 19, 2013 5:18 am
question about color and HBlankInt

Last post by greatkreator « Fri Mar 01, 2013 2:33 am
Replies: 37
by zhengyaxin_8bit » Fri Feb 15, 2013 11:48 am
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2

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37 Replies

42096 Views

Last post by greatkreator
Fri Mar 01, 2013 2:33 am
How to propertly scroll wide image?

Last post by Gigasoft « Sun Feb 03, 2013 7:54 pm
Replies: 11
by peekpoke » Fri Feb 01, 2013 2:32 am

11 Replies

11738 Views

Last post by Gigasoft
Sun Feb 03, 2013 7:54 pm
are the horizontal and vertical scrolls strange only to me?

Last post by TmEE co.(TM) « Fri Feb 01, 2013 7:30 am
Replies: 8
by greatkreator » Thu Jan 31, 2013 1:52 am

8 Replies

8871 Views

Last post by TmEE co.(TM)
Fri Feb 01, 2013 7:30 am
Vertical Scroll VDP bug in Dgen, any ideas?

Last post by Charles MacDonald « Fri Dec 28, 2012 10:59 pm
Replies: 8
by vext01 » Fri Dec 21, 2012 8:21 pm

8 Replies

10978 Views

Last post by Charles MacDonald
Fri Dec 28, 2012 10:59 pm
Possible to change Palette Number on Tiles/Sprites ??

Last post by Stef « Fri Nov 09, 2012 6:13 pm
Replies: 8
by NightShadow » Thu Oct 18, 2012 5:19 pm

8 Replies

11176 Views

Last post by Stef
Fri Nov 09, 2012 6:13 pm
Can the tile buffer be clipped at 63x63 tiles?

Last post by slobu « Wed Nov 07, 2012 7:54 am
Replies: 3
by slobu » Tue Nov 06, 2012 11:07 pm

3 Replies

6337 Views

Last post by slobu
Wed Nov 07, 2012 7:54 am
"bad" colors on NTSC/PAL?

Last post by TmEE co.(TM) « Thu Oct 25, 2012 7:29 am
Replies: 1
by djcouchycouch » Thu Oct 25, 2012 1:21 am

1 Replies

4031 Views

Last post by TmEE co.(TM)
Thu Oct 25, 2012 7:29 am
EA logo VDP control port bug

Last post by vext01 « Wed Oct 24, 2012 11:03 pm
Replies: 9
by vext01 » Sun Oct 21, 2012 8:56 pm

9 Replies

12178 Views

Last post by vext01
Wed Oct 24, 2012 11:03 pm
Opacity

Last post by djcouchycouch « Thu Sep 27, 2012 3:09 pm
Replies: 15
by elusive » Sun Sep 23, 2012 5:37 pm
1

2
15 Replies

17974 Views

Last post by djcouchycouch
Thu Sep 27, 2012 3:09 pm
Plane remapping

Last post by notaz « Tue Sep 11, 2012 2:07 pm
Replies: 8
by Bitybity » Thu Sep 06, 2012 4:07 am

8 Replies

10736 Views

Last post by notaz
Tue Sep 11, 2012 2:07 pm
Using SGDK's VDP_setHorizontalScroll()

Last post by Stef « Mon Aug 13, 2012 8:28 pm
Replies: 4
by djcouchycouch » Sun Feb 19, 2012 2:59 pm

4 Replies

7809 Views

Last post by Stef
Mon Aug 13, 2012 8:28 pm
Getting the WINDOW plane to work?

Last post by letoulousain « Sun Jul 15, 2012 5:53 pm
Replies: 7
by djcouchycouch » Sat May 05, 2012 12:39 am

7 Replies

10483 Views

Last post by letoulousain
Sun Jul 15, 2012 5:53 pm
Is it impossible to put a sprite under plan A or plan B?

Last post by greatkreator « Sun Jul 15, 2012 3:37 pm
Replies: 5
by greatkreator » Sun Jul 15, 2012 10:47 am

5 Replies

6987 Views

Last post by greatkreator
Sun Jul 15, 2012 3:37 pm
How does the sprite limit "work"?

Last post by Stef « Sat Jul 14, 2012 8:35 pm
Replies: 9
by greatkreator » Fri Jul 13, 2012 1:15 pm

9 Replies

12711 Views

Last post by Stef
Sat Jul 14, 2012 8:35 pm
Scroll Map scaling

Last post by Chilly Willy « Sun Jun 17, 2012 2:06 am
Replies: 11
by Bitybity » Mon Jun 11, 2012 1:51 am

11 Replies

11151 Views

Last post by Chilly Willy
Sun Jun 17, 2012 2:06 am
Double-Screen?

Last post by Nemesis « Wed Jun 06, 2012 10:59 pm
Replies: 14
by Bitybity » Thu Jan 12, 2012 10:45 pm

14 Replies

20258 Views

Last post by Nemesis
Wed Jun 06, 2012 10:59 pm
Fastest way to fill the visible part of a background layer?

Last post by djcouchycouch « Tue May 08, 2012 12:39 pm
Replies: 11
by djcouchycouch » Thu May 03, 2012 2:48 am

11 Replies

11458 Views

Last post by djcouchycouch
Tue May 08, 2012 12:39 pm
Manipulating sprite overlap?

Last post by Stef « Mon Apr 23, 2012 7:38 pm
Replies: 2
by djcouchycouch » Mon Apr 23, 2012 4:42 pm

2 Replies

4804 Views

Last post by Stef
Mon Apr 23, 2012 7:38 pm
VDP special tricks around sprites

Last post by Fonzie « Mon Mar 26, 2012 7:32 am
Replies: 7
by Fonzie » Sat Dec 02, 2006 1:13 am

7 Replies

15260 Views

Last post by Fonzie
Mon Mar 26, 2012 7:32 am
n00b questions about the VDP

Last post by djcouchycouch « Sun Feb 19, 2012 2:43 pm
Replies: 2
by djcouchycouch » Sun Feb 19, 2012 12:41 am

2 Replies

4695 Views

Last post by djcouchycouch
Sun Feb 19, 2012 2:43 pm
Horizontal Interrupts & Rasters

Last post by elusive « Fri Jan 27, 2012 4:15 pm
Replies: 8
by elusive » Fri Jan 27, 2012 12:10 am

8 Replies

9761 Views

Last post by elusive
Fri Jan 27, 2012 4:15 pm
question about DMA

Last post by Stef « Wed Jan 11, 2012 9:12 am
Replies: 22
by zhengyaxin_8bit » Thu Jan 05, 2012 2:39 pm
1

2
22 Replies

21519 Views

Last post by Stef
Wed Jan 11, 2012 9:12 am
Screen blink

Last post by HCKTROX « Fri Sep 16, 2011 8:35 pm
Replies: 1
by HCKTROX » Mon Sep 05, 2011 12:49 am

1 Replies

3834 Views

Last post by HCKTROX
Fri Sep 16, 2011 8:35 pm
VDP Reg Calculator

Last post by TmEE co.(TM) « Sun Sep 11, 2011 11:24 am
Replies: 14
by ElBarto » Tue Jul 19, 2011 10:13 pm

14 Replies

18382 Views

Last post by TmEE co.(TM)
Sun Sep 11, 2011 11:24 am
Help with tiles (bit of a noob)

Last post by dosboss « Mon Sep 05, 2011 5:00 am
Replies: 4
by dosboss » Sun Sep 04, 2011 3:03 pm

4 Replies

6233 Views

Last post by dosboss
Mon Sep 05, 2011 5:00 am

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