23 lines
1.0 KiB
ArmAsm
23 lines
1.0 KiB
ArmAsm
.text # section declaration
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# we must export the entry point to the ELF linker or
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.global _start # loader. They conventionally recognize _start as their
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# entry point. Use ld -e foo to override the default.
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_start:
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# write our string to stdout
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movl $len,%edx # third argument: message length
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movl $msg,%ecx # second argument: pointer to message to write
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movl $1,%ebx # first argument: file handle (stdout)
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movl $4,%eax # system call number (sys_write)
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int $0x80 # call kernel
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# and exit
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movl $0,%ebx # first argument: exit code
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movl $1,%eax # system call number (sys_exit)
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int $0x80 # call kernel
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.data # section declaration
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msg:
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.ascii "Hello, world!\n" # our dear string
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len = . - msg # length of our dear string
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