Kernel Print problems

[Neo]

so did it work?

[Vladaz]

It restarts me when writes "a" and "b". I think it still doesn't work. :'(

[Pype.Clicker]

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        xor bx, bx
   mov es, bx
   mov bx, 60000

Hmm ? how is *this* supposed to work ? are you in unreal mode ? Oh wait! it's mov bx, 60000 and not mov bx,0x60000, thus it will assemble fine.

However, i doubt you wanted to place your kernel at that place .

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 .text 0x100000

in your .ld file let me believe that your kernel expect to be located at 1MB barrier ... correct ?

[Vladaz]

Sorry, i forgot to upload new source to the internet.
http://avnet.sytes.net/~vladas/kernel.txt
I updated the link.ld and video.c files like Neo told me.

[Neo]

Try the attached one out, you will see that the line gets printed.
The compile.bat file instead of writing to a floppy just generates a image file called 'test.img' give this to bochs and see the output. Let me know what you get.

[Neo]

btw it would be more helpful if you use comments in your code.

[Vladaz]

Yeeee! ;D Now it works. Thank you! ;D

[Neo]

Yeeee! ;D Now it works. Thank you! ;D

yeah it works with a few calls to the print function only. i just realised what was 'wrong'.

The 'error' was that I was using partcopy with the wrong file size. I mean i was testing your code out with a single print statement in kernel_main() and was using the size that was generated by that file. Afterward when i used your code with the other print statements the thing crashed because the whole file was not read in. (I had to run this through BOCHS debugger single-stepping to realize that pure nothing was being executed after a point).
Change the relevant line in the compile.bat file to this

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patcopy kernel.bin 0 200 test.img 200

If it doesn't work after this, knock me down.