One chip MSX improvement project

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Por HRA!

Master (213)

Imagen del HRA!

28-04-2020, 01:50

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

I have released ocmkai-20200428.zip

[Update content]
Impremented IPLROM v4.00
(Require new BIOS image format.)

Por HRA!

Master (213)

Imagen del HRA!

01-05-2020, 15:36

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

I have released ocmkai-20200501.zip

[Update contents]
(1) Modified ESEPS2 device.
 -- Change the Kana indicator from NumLk LED to ScrLk LED.
 -- Fixed NumLk to work as NumLk.
 -- The LED display (ScrLk) of CMT was removed.
(2) The sample setting file of BIOS Image Maker for IPLROM4 was added.

Por KdL

Paragon (1292)

Imagen del KdL

01-05-2020, 23:30

HRA! wrote:

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

I have released ocmkai-20200501.zip

[Update contents]
(1) Modified ESEPS2 device.
 -- Change the Kana indicator from NumLk LED to ScrLk LED.
 -- Fixed NumLk to work as NumLk.
 -- The LED display (ScrLk) of CMT was removed.
(2) The sample setting file of BIOS Image Maker for IPLROM4 was added.

Thank you! I'll try it. ^__^

Por HRA!

Master (213)

Imagen del HRA!

02-05-2020, 16:06

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

I have released ocmkai-20200502.zip

[Update contents]
(1) Modified KeyMap data on Keymap.vhd for 106jp keyboard.
 -- [F6] Key ==> [STOP] Key
 -- [F7] Key ==> [CLS/HOME] Key
 -- [LeftWIN] Key ==> [KANA] Key
 -- [Zen/Han] Key ==> [ESC] Key
 -- [Menu] Key ==> [INS] Key
 The key arrangement is closer to FS-A1GT.
 I assigned the Menu key to the INS key because it was inconvenient for me to press [Fn]+[DEL] for INS input on a compact keyboard, so I assigned the surplus Menu key to the [INS] key.
 I put a PDF file of the keymap in the Document folder.

Por HRA!

Master (213)

Imagen del HRA!

05-05-2020, 14:45

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

I have released ocmkai-20200505.zip

[Update contents]
(1) The initial value of R#8 of VDP is changed to 00h.
 Previously, the initial value of SPRITE_OFF bit was set to 1, so there was a problem that sprites were not displayed when booting with MSX1 BIOS.

(2) SDRAM controller is separated from the emsx_top hierarchy.

(3) Removed the DRAM 0-fill circuit in the SDRAM controller.
 It seems to be a circuit that clears the contents of MapperRAM, ESERAM, etc. by 0, but there was a problem in address increment and only the first 1 byte was cleared.

Por Grauw

Ascended (8931)

Imagen del Grauw

05-05-2020, 14:49

Thanks for your updates HRA! I hope KdL can get some of these to fit into the original OCM as well Smile.

Por KdL

Paragon (1292)

Imagen del KdL

05-05-2020, 20:20

Grauw wrote:

Thanks for your updates HRA! I hope KdL can get some of these to fit into the original OCM as well Smile.

The latest updates from HRA! they are distorting the code we've known so far. Not all changes will be included in 1chipMSX and Zemmix Neo for the usual space problems. However, I will be able to test all his work thanks to SM-X and will continue to decide which corrections will be usable and which superfluous. The future that I expect is OCM turboR but it may be necessary to remove OPLL from the inside to use it on 1chipMSX and Zemmix Neo. The firmware could be bifurcated into two classes: Legacy VHDL and New Verilog.

Por AxelF

Champion (354)

Imagen del AxelF

05-05-2020, 21:11

It would be nice if you could reset the OCM with a key combination, for example CTRL + ALT + DEL.

Por HRA!

Master (213)

Imagen del HRA!

07-05-2020, 00:34

http://hraroom.s602.xrea.com/msx/ocm/index.htm

I have released ocmkai-20200507.zip

[Update contents]
(1) New SDRAM zero-clearing circuit is added.

Por HRA!

Master (213)

Imagen del HRA!

07-05-2020, 00:37

Grauw wrote:

Thanks for your updates HRA! I hope KdL can get some of these to fit into the original OCM as well Smile.

I am letting KdL know of the update. I think he'll pick up what he needs from my updates and get it into OCM-PLD. Wink

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