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Help me with VGA modes for my kernel http://forums.osdever.net/viewtopic.php?f=5&t=247 |
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Author: | EriksonMus [ Wed Mar 31, 2010 11:03 pm ] |
Post subject: | Help me with VGA modes for my kernel |
Hello folks ... first I speak little english , i hope you can understand me well, here is my problem... I wrote a kernel with help of BRAN's KERNEL TUTORIAL , but i wolud like change the mode of the VGA ... I want to show windows and another things , I don't want to work with the 80*25 VGA mode... i am using GRUB for the booting proccess , please can someone help me with a little example or give me a tutorial about this ..? thank you |
Author: | Terry A. Davis [ Wed Mar 31, 2010 11:16 pm ] |
Post subject: | Re: Help me with VGA modes for my kernel |
Does Grub switch out of real mode for you? I just call the BIOS when it's still in 16-bit mode before I change to 32-bit and 64-bit. http://lrs.uni-passau.de/support/doc/interrupt-57/INT-10.HTM http://lrs.uni-passau.de/support/doc/interrupt-57/RB-0259.HTM I guess you have choice -- if Grub changes to 32-bit, you can't use the BIOS and must manually change the VGA registers. If grub starts it in 16-bit mode, you can call the BIOS, but must manually switch to 32 or 64-bit modes. I use my own boot loader which runs my kernel in 16-bit mode. My kernel calls the BIOS and changes to 64-bit. http://www.losethos.com/code/OSStartUp.html |
Author: | EriksonMus [ Wed Mar 31, 2010 11:34 pm ] |
Post subject: | Re: Help me with VGA modes for my kernel |
ok thanks ', but i am a new in OS but I am a good programmer, i have created my own programming lenguage I have knowledge of assembler , but a don't knowa alot of 16,32,64 bits and what are you try to say me but , thank you . |
Author: | Terry A. Davis [ Thu Apr 01, 2010 12:08 am ] |
Post subject: | Re: Help me with VGA modes for my kernel |
me say you pow-wow in tee-pee. real=16-bit protected=32-bit long=64-bit you prefer the Intel terms? You're nuts. EMT64=IA32e=AMD64=64-bit Intel like to fuck-up terminology to confuse people. you have a lame Indian accent 64-bit mode has 16 registers instead of 8 and they are 64-bits wide instead of 32. Lemme guess... you're an osdever trying to sell us on sour grapes claiming no need for 64-bit mode. |
Author: | EriksonMus [ Mon Apr 05, 2010 9:52 pm ] |
Post subject: | Re: Help me with VGA modes for my kernel |
jajja .... ok ,,, I know , what are you try to say me? .... i learnt that ... 2 weeks ago . only ,, I am searching a tutorial or example.. if you can help me ... fine .. else Thank you very much !! awevado no te creas chevere |
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