[Patch] ATI Korean VGA

Greatpsycho · Post by **Greatpsycho** » Thu 01 Mar, 2018 10:55 am

This patch applies experimental implementation for ATI Korean VGA which is ATI-28800 compliant and supports KSC-5601 Korean character set specification.
If you need BIOS ROM and font ROM image for it, please send PM to me.

Edit : This patch has been incorporated here.

: ATI_Korean_VGA_1.png (34 KiB) Viewed 137327 times

Greatpsycho · Post by **Greatpsycho** » Fri 02 Mar, 2018 9:30 am

This patch applies the following additions.
- Improved handling SVGA CRTC register 0x17 and SVGA ATTR register 0x10. Olivetti M24 compatible mode(BIOS mode ox40) now works properly when ATI Korean VGA driver is loaded.

Edit : This patch has been incorporated here.

Greatpsycho · Post by **Greatpsycho** » Mon 05 Mar, 2018 8:07 am

This patch applies the following additions.
- Add clearing in_get_korean_font_kind_set flag that I've missed previously.
- More improving accuracy of handling SVGA CRTC register 0x17. 800x600 resolution mode now works properly.
- Add 1024x768 mode register handling. 1024x768 resolution mode now works properly.

Edit : This patch has been incorporated here.

: Korean_display_800x600(0x54).png (233.54 KiB) Viewed 137117 times

Korean character display on 800x600(mode 0x54).

: Korean_display_1024x768(0x55).png (46.7 KiB) Viewed 137117 times

Korean character display on 1024x768(mode 0x55)

Greatpsycho · Post by **Greatpsycho** » Sun 11 Mar, 2018 8:44 am

This patch applies the following additions. This patch replaces previous patch.
- Implemented ATI-28800 clock setting.
- Separated Korean character display part from svga_render_text_80 function and made it a separate function.
- Add show status information for Korean VGA mode.

Post by **SarahWalker** » Sun 11 Mar, 2018 3:46 pm

Committed at rev 1099.

Greatpsycho · Post by **Greatpsycho** » Tue 20 Mar, 2018 4:20 am

This patch implements user-defined character handling on ATI Korean VGA. To use user-defined character, you need font edit program and user-defined font files. And user-defined font files(UDCCON.SYS and UDCPRT.SYS) must be placed on current directory. If you need these files, please send PM to me. However, keep in mind that it's hard to use this program if you don't know Korean.

Edit : I've found serious mistake on previous uploaded user-defined character handling patch. So, I've re-uploaded patch.
And changed calling svga_add_status_info function in ati28800k_add_status_info function to calling ati28800_add_status_info function.

: UDCSYS1.png (40.8 KiB) Viewed 136716 times

Editing user-defined character plane 1(0xc9a1 ~ 0xc9fe). Plane 2 area is between 0xfea1 and 0xfefe.

: UDCTEST.png (46.9 KiB) Viewed 136716 times

User-defined character operation.

Greatpsycho · Post by **Greatpsycho** » Mon 17 Sep, 2018 8:53 am

This patch applies Korean font ROM can be accessed even if Korean character display mode isn't activated as real hardware does.

Post by **SarahWalker** » Wed 17 Apr, 2019 5:22 pm

Committed at rev 1217.

Greatpsycho · Post by **Greatpsycho** » Sun 08 Mar, 2020 11:16 am

Removed hsync divisor adjust on ati2800_recalctimings function because it does on svga_poll function now. Fixes display 800x600 resolution on ATI-28800.

Post by **SarahWalker** » Sat 14 Mar, 2020 11:38 am

Committed at rev 1538.

SA1988 · Post by **SA1988** » Fri 20 Mar, 2020 7:02 pm

Any news for a 1mb 1024x768x8bpp capable 28800-5/6 bios support? I mean, support for mode 64h.

Greatpsycho · Post by **Greatpsycho** » Sat 21 Mar, 2020 8:16 am

SA1988 wrote: ↑Fri 20 Mar, 2020 7:02 pm Any news for a 1mb 1024x768x8bpp capable 28800-5/6 bios support? I mean, support for mode 64h.

I don't have ATI-28800 graphics card with 1MB memory,so there is no way to see how the card should work when the memory is 1MB.

[Patch] ATI Korean VGA

[Patch] ATI Korean VGA

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Re: [Patch] ATI Korean VGA

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Re: [Patch] ATI Korean VGA

Re: [Patch] ATI Korean VGA

Re: [Patch] ATI Korean VGA

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