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davidcallanan / os-series

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Only getting a blank screen after implementing code from ep2 #67

Closed greeneg closed 2 years ago

greeneg commented 2 years ago

My code is here: https://github.com/greeneg/xOS

I've defined the Welcome string as "Welcome to xOS 64-bit operating system", however, when I boot in qemu-system-x86_64, I don't see the string on screen.

qemu_screenshot

commands run:

make build-amd
qemu-system-x86_64 -cdrom dist/amd64/kernel.iso

Any ideas as to why I'm not getting output?

Host OS: openSUSE 15.3 QEMU: 6.2.0 C compiler: gcc 10.3.0 asm compiler: nasm 2.14.02

greeneg commented 2 years ago

I figured the issue out after re-reading my code.

On line 54 in print.c, in the print_char function, I only had a single '=' character assigning '\n' to character instead of '==' the equality operator.

Closing issue.