Characters are not being shown in qemu.

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jpal
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Joined: Sat Jan 12, 2013 10:35 am

Characters are not being shown in qemu.

Post by jpal »

In c++ my putc and printf functions are not working. Even doing mov byte [0xB8000], 65 and mov byte [0bB8001], F0h does not. I have a cross compiler for x86_64-elf. Why is it not working?
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sortie
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Re: Characters are not being shown in qemu.

Post by sortie »

My physic powers tell me that you produce a kernel that GRUB is not able to load because it doesn't load 64-bit kernels or that your fail to enter long mode correctly and hence nothing is ever displayed.

Write a 32-bit kernel (i586-elf) as a GRUB2 multiboot kernel.
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Nessphoro
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Re: Characters are not being shown in qemu.

Post by Nessphoro »

Yeah physics!
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