Im having trouble finding 32-bit assembly tutorials without them being win32. Im hoping to start creating an OS soon but I cant find any information(32-bit Code struture, 16-bit to 32-bit jumping examples, ect.) Can you please post any links or information I could use to get started. Thank you.
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Need 32-bit assembly help
- Thread starter AalfaBob
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adholioshake
Programmer
- Feb 9, 2003
- 136
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If you want to use 32-bit code in just a dos program, then using the .386 macro will do that. This gives 32-bit registers (eax, ebx, etc.).
But writing an OS is very different. I'm working on an OS at the moment and to do anything in 32-bit you have to really be in protected mode - quite complicated when you have to set up a GDT, LDT, IDT and initialize task-switching...
The best thing I suggest if you are going to start an OS is to get the Intel documentation, or a book that describes how to use it. Usually they will give sample code, which helps to get the ball rolling...
But writing an OS is very different. I'm working on an OS at the moment and to do anything in 32-bit you have to really be in protected mode - quite complicated when you have to set up a GDT, LDT, IDT and initialize task-switching...
The best thing I suggest if you are going to start an OS is to get the Intel documentation, or a book that describes how to use it. Usually they will give sample code, which helps to get the ball rolling...
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