2016-05-05 15:06:11 +00:00
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.macro isr_stub nr
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.global isr_\nr
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isr_\nr:
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pushl $0
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pushl $\nr
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jmp isr_handler
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.endm
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.macro isr_stub_with_err nr
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.global isr_\nr
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isr_\nr:
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pushl $\nr
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jmp isr_handler
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.endm
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#define ISR(num) isr_stub num
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#define ISR_ERR(num) isr_stub_with_err num
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2016-05-06 17:24:12 +00:00
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#include "interrupts.lst"
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2016-05-05 15:06:11 +00:00
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#undef ISR
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#undef ISR_ERR
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#if !defined(IDT_DISPATCH)
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#error "IDT_DISPATCH must be defined!"
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#endif
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.extern IDT_DISPATCH
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isr_handler:
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// Store CPU State
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push %ebp
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push %edi
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push %esi
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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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// Calls interrupt handler with CPU state as argument
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push %esp
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call IDT_DISPATCH
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2016-05-07 19:49:54 +00:00
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// add $4, %esp
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mov %eax, %esp
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2016-05-05 15:06:11 +00:00
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// Restore CPU State
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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 %esi
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pop %edi
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pop %ebp
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// Remove error code and interrupt number
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add $8, %esp
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iret
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