One chip MSX improvement project
no! the license type isn't compatible to GPL for now, sorry! 
some suggestion???

some suggestion???
Is there another license that *is* compatible?
I just tried F1 Spirit 3D special and it seems that the scroll has some timing issue (20080419_002)... The scrolling takes too much time?
> F1 Spilit 3D Special
The horizontal scroll was synchronized with the H-SYNC signal.
It might be a cause possibly.
I examine it
The horizontal scroll was synchronized with the H-SYNC signal.
It might be a cause possibly.
I examine it

New update PLD:
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/emsx_top_20080419_003.zip
Updates:
(1) The bug with abnormal color of sprite on YJK mode is corrected.
(2) update "test_program"
[*]SDCC is necessary to compile the test_program.
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/msxdoslib_070120_000.zip
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/emsx_top_20080419_003.zip
Updates:
(1) The bug with abnormal color of sprite on YJK mode is corrected.
(2) update "test_program"
[*]SDCC is necessary to compile the test_program.
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/msxdoslib_070120_000.zip
I concentrates on the V9958 interchangeability function now.That's MSX2+ compatibility, isn't it?
That's MSX2+ compatibility, isn't it?
It becomes MSX2+ compatible as hardware.
However, BIOS on EPCS4 is MSX2 compatible.
For instance, KANJI-BASIC cannot be used.
If MSX2+ BIOS is prepared on the SD/MMC card, it becomes MSX2+ compatible
The scrolling takes too much time?
I tried "F1 Spirit 3D special".
"F1 Spirit 3D special" takes timing by doing VDP-S#2 in polling.
If it is 10MHz mode, the scroll display is improved.
I think that the timing of the horizontal synchronizing signal is different
from the real thing.
Sprite falls into disorder, too.
The cause has not been clarified yet
It becomes MSX2+ compatible as hardware.
However, BIOS on EPCS4 is MSX2 compatible.
For instance, KANJI-BASIC cannot be used.
If MSX2+ BIOS is prepared on the SD/MMC card, it becomes MSX2+ compatible

The scrolling takes too much time?
I tried "F1 Spirit 3D special".
"F1 Spirit 3D special" takes timing by doing VDP-S#2 in polling.
If it is 10MHz mode, the scroll display is improved.
I think that the timing of the horizontal synchronizing signal is different
from the real thing.
Sprite falls into disorder, too.
The cause has not been clarified yet

New update PLD:
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/emsx_top_20080419_004.zip
Updates:
(1) VDP-R#26/R#27 was changed into the change at once.
The sprite disorder of "F1 Spirit 3D special" was corrected.
However, the road display and the panel display is damaged
http://www5d.biglobe.ne.jp/~hra/note/onechipmsx/files/emsx_top_20080419_004.zip
Updates:
(1) VDP-R#26/R#27 was changed into the change at once.
The sprite disorder of "F1 Spirit 3D special" was corrected.
However, the road display and the panel display is damaged


By HRA!
Expert (109)
19-04-2008, 14:36