82 lines
2.5 KiB
ArmAsm
82 lines
2.5 KiB
ArmAsm
/*-
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* Copyright (c) 1989, 1990 William F. Jolitz.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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.data
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ALIGN_DATA
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/* interrupt mask enable (all h/w off) */
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.globl imen
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imen: .long HWI_MASK
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.text
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SUPERALIGN_TEXT
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ENTRY(INTREN)
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movl 4(%esp), %eax
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movl %eax, %ecx
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notl %eax
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andl %eax, imen
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movl imen, %eax
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testb %cl, %cl
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je 1f
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outb %al, $(IO_ICU1 + ICU_IMR_OFFSET)
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1:
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testb %ch, %ch
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je 2f
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shrl $8, %eax
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outb %al, $(IO_ICU2 + ICU_IMR_OFFSET)
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2:
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ret
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ENTRY(INTRDIS)
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movl 4(%esp), %eax
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movl %eax, %ecx
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orl %eax, imen
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movl imen, %eax
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testb %cl, %cl
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je 1f
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outb %al, $(IO_ICU1 + ICU_IMR_OFFSET)
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1:
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testb %ch, %ch
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je 2f
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shrl $8, %eax
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outb %al, $(IO_ICU2 + ICU_IMR_OFFSET)
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2:
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ret
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