banan-os/kernel/arch/i386/SpinLock.S

.global spinlock_lock_asm
spinlock_lock_asm:
	movl 4(%esp), %eax
	lock; btsl $0, (%eax)
	jnc .done
.retry:
	pause
	testl $1, (%eax)
	jne .retry
	lock; btsl $0, (%eax)
	jc .retry
.done:
	ret

.global spinlock_unlock_asm
spinlock_unlock_asm:
	movl 4(%esp), %eax
	movl $0, (%eax)
	ret
Kernel: Implement basic SpinLock 2023-02-01 01:51:25 +02:00			`.global spinlock_lock_asm`
			`spinlock_lock_asm:`
Kernel: fix spinlock for i386 2023-02-02 15:49:00 +02:00			`movl 4(%esp), %eax`
			`lock; btsl $0, (%eax)`
Kernel: Implement basic SpinLock 2023-02-01 01:51:25 +02:00			`jnc .done`
			`.retry:`
			`pause`
Kernel: fix spinlock for i386 2023-02-02 15:49:00 +02:00			`testl $1, (%eax)`
Kernel: Implement basic SpinLock 2023-02-01 01:51:25 +02:00			`jne .retry`
Kernel: fix spinlock for i386 2023-02-02 15:49:00 +02:00			`lock; btsl $0, (%eax)`
Kernel: Implement basic SpinLock 2023-02-01 01:51:25 +02:00			`jc .retry`
			`.done:`
			`ret`

			`.global spinlock_unlock_asm`
			`spinlock_unlock_asm:`
Kernel: fix spinlock for i386 2023-02-02 15:49:00 +02:00			`movl 4(%esp), %eax`
			`movl $0, (%eax)`
All: Cleanup all files Add newline to end of files and remove whitespace from end of lines 2024-01-24 14:43:46 +02:00			`ret`