Subversion Repositories Kolibri OS

(root)/contrib/sdk/sources/newlib/libc/sys/io_alloc.S @ 8930 – Rev 4921

Details | Last modification | View Log | RSS feed

Rev	Author	Line No.	Line
4921	Serge	1
		2
		3
		4	.global ___io_free
		5	.global ___io_tab
		6
		7
		8	___io_alloc:
		9	pushl $__io_mutex
		10	call ___mutex_lock
		11	popl %eax
		12
		13
		14	bsfl __io_map, %eax
		15	jnz .done
		16
		17
		18	bsfl __io_map+4, %eax
		19	jnz .done
		20
		21
		22	mov %eax, __io_mutex
		23	notl %eax
		24	ret
		25
		26
		27	addl %ecx, %eax
		28	btrl %eax, __io_map
		29	movl $0, __io_mutex
		30	ret
		31
		32
		33	___io_free:
		34	movl 4(%esp), %eax
		35	bts %eax, __io_map
		36	ret
		37
		38
		39
		40
		41	.long(0xFFFFFFFF)
		42
		43
		44
		45
		46
		47
		48	__io_mutex: .space 4
		49