One chip MSX improvement project

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Por HRA!

Champion (274)

imagem de HRA!

16-01-2020, 15:35

I have released new version.

http://hraroom.s602.xrea.com/ocm/index.html

[Update contents]
(1) Implemented new vdp_sprite.

Por tfh

Prophet (3156)

imagem de tfh

16-01-2020, 15:58

You're bering very productive!

Por HRA!

Champion (274)

imagem de HRA!

16-01-2020, 22:03

http://map.grauw.nl/articles/vdp-vram-timing/vdp-timing.html

I would like to make a more realistic V9958 clone using the information provided here. ;-)
For that, new vdp_sprite is still incomplete.

Por KdL

Paragon (1427)

imagem de KdL

17-01-2020, 04:47

HRA! wrote:

http://map.grauw.nl/articles/vdp-vram-timing/vdp-timing.html

I would like to make a more realistic V9958 clone using the information provided here. ;-)
For that, new vdp_sprite is still incomplete.

And also here:
http://map.grauw.nl/articles/vdp-vram-timing/vdp-timing-2.html

;-D

Por Grauw

Ascended (10560)

imagem de Grauw

17-01-2020, 08:31

I think that would be amazing.

Por KdL

Paragon (1427)

imagem de KdL

17-01-2020, 10:55

Grauw wrote:

I think that would be amazing.

In the split screen of TileTile, the sprite are already perfectly aligned in the vertical axis using the new vdp sprite module, and they are properly hidden with the text box.

https://bitbucket.org/grauw/tiletile

Por Grauw

Ascended (10560)

imagem de Grauw

17-01-2020, 11:40

Cool that you’re using it to test Smile. If you need any help figuring out particular VDP details, I could help provide some test cases possibly (like half way line splits or vertical adjust behaviour or a VRAM access speed stress test). Pgimeno may also be able to provide some tests, since he’s making a couple for openMSX at the moment I think.

Por HRA!

Champion (274)

imagem de HRA!

25-01-2020, 15:41

I have released new version of 1chipMSX改 (v2020.01.25).
http://hraroom.s602.xrea.com/ocm/index.html

[Update contents]
(1) Provide feedback on corrections to OCM-PLD v3.8.
(2) Verilog conversion of some circuits of vdp.
vdp_vga, vdp_hvcounter, vdp_ssg, vdp_sprite, vdp_linebuf, vdp_doublebuf.
(3) Updated vdp_sprite. Fixed a bug that MSX2 + logo display was distorted.

Por KdL

Paragon (1427)

imagem de KdL

25-01-2020, 18:58

Grauw wrote:

Cool that you’re using it to test Smile. If you need any help figuring out particular VDP details, I could help provide some test cases possibly (like half way line splits or vertical adjust behaviour or a VRAM access speed stress test). Pgimeno may also be able to provide some tests, since he’s making a couple for openMSX at the moment I think.

As soon as the new VDP is stable enough, I will send you a trial version to analyze the remaining shortcomings and bugs.

Por HRA!

Champion (274)

imagem de HRA!

25-01-2020, 23:16

I have released new version of 1chipMSX改 (v2020.01.26).
http://hraroom.s602.xrea.com/ocm/index.html

[Update contents]
(1) Adjust timing of V-Sync interrupt.

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