2024-03-26 13:59:09 +02:00
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isr_stub:
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pusha
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2024-03-26 16:36:51 +02:00
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movl %cr0, %eax; pushl %eax
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movl %cr2, %eax; pushl %eax
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movl %cr3, %eax; pushl %eax
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movl %cr4, %eax; pushl %eax
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movl %esp, %eax // register ptr
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leal 56(%esp), %ebx // interrupt stack ptr
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movl 52(%esp), %ecx // error code
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movl 48(%esp), %edx // isr number
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subl $12, %esp
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pushl %eax
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pushl %ebx
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pushl %ecx
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pushl %edx
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2024-03-26 13:59:09 +02:00
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call cpp_isr_handler
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2024-03-26 16:36:51 +02:00
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addl $44, %esp
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2024-03-26 13:59:09 +02:00
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popa
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2024-03-26 16:36:51 +02:00
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addl $8, %esp
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2024-03-26 13:59:09 +02:00
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iret
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irq_stub:
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pusha
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2024-03-26 16:36:51 +02:00
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2024-04-02 12:34:42 +03:00
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movl 32(%esp), %eax # interrupt number
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subl $8, %esp
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pushl %eax
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call cpp_irq_handler
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addl $12, %esp
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popa
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addl $8, %esp
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iret
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.global asm_reschedule_handler
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asm_reschedule_handler:
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pusha
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movl %esp, %eax # interrupt registers ptr
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leal 32(%esp), %ebx # interrupt stack ptr
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2024-03-26 16:36:51 +02:00
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subl $12, %esp
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pushl %eax
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pushl %ebx
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2024-04-02 12:34:42 +03:00
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call cpp_reschedule_handler
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2024-03-26 16:36:51 +02:00
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addl $20, %esp
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2024-03-26 13:59:09 +02:00
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popa
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iret
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// arguments in EAX, EBX, ECX, EDX, ESI, EDI
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.global syscall_asm
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syscall_asm:
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ud2
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pusha
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pushl %esp
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addl $36, (%esp)
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pushl %edi
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pushl %esi
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pushl %edx
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pushl %ecx
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pushl %ebx
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pushl %eax
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call cpp_syscall_handler
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addl $60, %esp
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popl %edi
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popl %esi
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popl %ebp
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addl $4, %esp
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popl %ebx
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popl %edx
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popl %ecx
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addl $4, %esp
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iret
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.macro isr n
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.global isr\n
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isr\n:
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pushl $0
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pushl $\n
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jmp isr_stub
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.endm
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.macro isr_err n
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.global isr\n
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isr\n:
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pushl $\n
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jmp isr_stub
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.endm
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.macro irq n
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.global irq\n
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irq\n:
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|
pushl $0
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pushl $\n
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|
|
jmp irq_stub
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|
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|
.endm
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isr 0
|
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isr 1
|
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isr 2
|
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isr 3
|
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isr 4
|
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isr 5
|
|
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isr 6
|
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isr 7
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|
isr_err 8
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isr 9
|
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|
isr_err 10
|
|
|
|
|
isr_err 11
|
|
|
|
|
isr_err 12
|
|
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|
|
isr_err 13
|
|
|
|
|
isr_err 14
|
|
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|
|
isr 15
|
|
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|
isr 16
|
|
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|
|
isr_err 17
|
|
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|
isr 18
|
|
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|
|
isr 19
|
|
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|
isr 20
|
|
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|
|
isr 21
|
|
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|
|
isr 22
|
|
|
|
|
isr 23
|
|
|
|
|
isr 24
|
|
|
|
|
isr 25
|
|
|
|
|
isr 26
|
|
|
|
|
isr 27
|
|
|
|
|
isr 28
|
|
|
|
|
isr 29
|
|
|
|
|
isr 30
|
|
|
|
|
isr 31
|
|
|
|
|
|
|
|
|
|
irq 0
|
|
|
|
|
irq 1
|
|
|
|
|
irq 2
|
|
|
|
|
irq 3
|
|
|
|
|
irq 4
|
|
|
|
|
irq 5
|
|
|
|
|
irq 6
|
|
|
|
|
irq 7
|
|
|
|
|
irq 8
|
|
|
|
|
irq 9
|
|
|
|
|
irq 10
|
|
|
|
|
irq 11
|
|
|
|
|
irq 12
|
|
|
|
|
irq 13
|
|
|
|
|
irq 14
|
|
|
|
|
irq 15
|
|
|
|
|
irq 16
|
|
|
|
|
irq 17
|
|
|
|
|
irq 18
|
|
|
|
|
irq 19
|
|
|
|
|
irq 20
|
|
|
|
|
irq 21
|
|
|
|
|
irq 22
|
|
|
|
|
irq 23
|
|
|
|
|
irq 24
|
|
|
|
|
irq 25
|
|
|
|
|
irq 26
|
|
|
|
|
irq 27
|
|
|
|
|
irq 28
|
|
|
|
|
irq 29
|
|
|
|
|
irq 30
|
|
|
|
|
irq 31
|
