switch off manually on linux x86_64
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1 changed files with 25 additions and 0 deletions
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@ -18,6 +18,7 @@
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#define SYSCALL_WRITE 1
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#define SYSCALL_RESET 169
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#define SYSCALL_IOPL 172
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#define SYSCALL_EXIT 60
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#define STDOUT 1
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@ -25,6 +26,8 @@
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#define SHUTDOWN_MAGIC2 0x28121969
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#define SHUTDOWN_MAGIC3 0x4321fedc
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#define SHUTDOWN_PORT 0x8900
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.text
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.global start, _start
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_start:
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@ -36,6 +39,28 @@ start:
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movq $(messageend-message), %rdx
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syscall
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movq $SYSCALL_IOPL, %rax
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movq $3, %rdi
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syscall
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movw $SHUTDOWN_PORT, %dx
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movb $'S', %al
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outb %al, %dx
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movb $'h', %al
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outb %al, %dx
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movb $'u', %al
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outb %al, %dx
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movb $'t', %al
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outb %al, %dx
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movb $'d', %al
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outb %al, %dx
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movb $'o', %al
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outb %al, %dx
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movb $'w', %al
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outb %al, %dx
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movb $'n', %al
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outb %al, %dx
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/* shutdown. */
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movq $SYSCALL_RESET, %rax
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movq $SHUTDOWN_MAGIC1, %rdi
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