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.section .text
.global aquire_lock
.type aquire_lock, @function
aquire_lock:
pushl %ebp
movl %esp, %ebp
locked:
movl 8(%esp), %eax
lock incl (%eax)
jc spin_wait
popl %ebp
ret
spin_wait:
test %eax, 1
jnz spin_wait
jmp locked
.global release_lock
.type release_lock, @function
release_lock:
pushl %ebp
movl %esp, %ebp
movl 8(%ebp), %eax
lock decl (%eax)
popl %ebp
ret
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