63 lines
542 B
ArmAsm
63 lines
542 B
ArmAsm
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.global irq0
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.extern _switch_task
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.global jump_kernel
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.global jump_user
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.extern ss
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.extern esp
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.extern eflags
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.extern cs
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.extern eip
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irq0:
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push %esp
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push %ebp
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push %edx
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push %ecx
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push %ebx
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push %eax
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call _switch_task
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iret
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jump_kernel:
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pop %eax /* pop return instruction */
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pop %eax
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pop %ebx
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pop %ecx
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pop %edx
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pop %ebp
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pop %esp
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push (eflags)
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push (cs)
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push (eip)
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iret
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jump_user:
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pop %eax /* pop return instruction */
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pop %eax
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pop %ebx
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pop %ecx
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pop %edx
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pop %ebp
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push (ss)
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push (esp)
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push (eflags)
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push (cs)
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push (eip)
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iret
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