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Clean up everything in the i386 arch directory. This code has been in
dire need of refactoring for a long while. All the inline assembly
functions and the data structures related to the architecture should be
placed into their own header file. Now the scheduler can access
registers and ISRs without having to deal with arch-specific code.
Signed-off-by: Danny Holman <dholman@gymli.org>
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The code that constructs an isr_frame struct should not push ESP to the
stack. In addition, the kernel should set its own copy of ESP into a
function defined elsewhere for scheduling purposes.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Create the ISR stubs for use by IRQ handlers.
Signed-off-by: Danny Holman <dholman@gymli.org>
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The x86 system call/interrupt handlers should be refactored to be more
readable.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Simplify the interrupt descriptor table setup and frame assembly.
Signed-off-by: Danny Holman <dholman@gymli.org>
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Include information about the current stack frame in the IDT handler(s).
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Fix the i386's general exception handler to actually work. Fix provided
by Jon Sanderson (jjs295356@gmail.com).
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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Create files that add IDT support for i386.
Signed-off-by: Danny Holman <dholman@gymli.xyz>
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