162 lines
1.6 KiB
ArmAsm
162 lines
1.6 KiB
ArmAsm
isr_stub:
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pusha
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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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call cpp_isr_handler
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addl $44, %esp
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popa
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addl $8, %esp
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iret
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irq_stub:
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pusha
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leal 40(%esp), %eax // interrupt stack ptr
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movl 32(%esp), %ebx // irq number
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subl $12, %esp
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pushl %eax
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pushl %ebx
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call cpp_irq_handler
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addl $20, %esp
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popa
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addl $8, %esp
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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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.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
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isr_err 11
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isr_err 12
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isr_err 13
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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
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isr 23
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isr 24
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isr 25
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isr 26
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isr 27
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isr 28
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isr 29
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isr 30
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isr 31
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irq 0
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irq 1
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irq 2
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irq 3
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irq 4
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irq 5
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irq 6
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irq 7
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irq 8
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irq 9
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irq 10
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irq 11
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irq 12
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irq 13
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irq 14
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irq 15
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irq 16
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irq 17
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irq 18
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irq 19
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irq 20
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irq 21
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irq 22
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irq 23
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irq 24
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irq 25
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irq 26
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irq 27
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irq 28
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irq 29
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irq 30
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irq 31
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irq 32
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