Nigel
0f0fc9f252
Moved the PMM away from being object orientated as it is just plain annoying renamed src folder to source Set timeout to 5 seconds in the grub config
64 lines
942 B
ArmAsm
64 lines
942 B
ArmAsm
# Basic cpu functions
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.globl GetCR0
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GetCR0:
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push %ebp # save the base pointer on the stack
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mov %esp, %ebp # Set the base pointer to the current stack pointer
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xor %eax, %eax # Clear EAX to make sure no weird stuff is going on
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mov %cr0, %eax # Copy the value of the CR0 register into EAX
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mov %ebp, %esp # restore the base pointer
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pop %ebp
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ret
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.globl GetCR4
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GetCR4:
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push %ebp
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mov %esp, %ebp
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xor %eax, %eax
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mov %cr4, %eax
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mov %ebp, %esp
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pop %ebp
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ret
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.globl GetEFLAGS
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GetEFLAGS:
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push %ebp
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mov %esp, %ebp
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xor %eax, %eax
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pushfl # Push the EFLAGS register content onto the stack, should be pushfd but GAS apparently doesn't agree
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mov 4(%esp) , %eax
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mov %ebp, %esp
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pop %ebp
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ret
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.globl GetCR2
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GetCR2:
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push %ebp
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mov %esp, %ebp
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xor %eax, %eax
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mov %cr2, %eax
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mov %ebp, %esp
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pop %ebp
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ret
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.globl GetCR3
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GetCR3:
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push %ebp
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mov %esp, %ebp
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xor %eax, %eax
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mov %cr3, %eax
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mov %ebp, %esp
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pop %ebp
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ret
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