Annotation of prex/dev/i386/i386/cpufunc.S, Revision 1.1
1.1 ! nbrk 1: /*-
! 2: * Copyright (c) 2008, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <machine/asm.h>
! 31:
! 32:
! 33: ENTRY(breakpoint)
! 34: int $3
! 35: ret
! 36:
! 37: ENTRY(outb)
! 38: movl 4(%esp), %eax
! 39: movl 8(%esp), %edx
! 40: outb %al, %dx
! 41: ret
! 42:
! 43: ENTRY(outw)
! 44: movl 4(%esp), %eax
! 45: movl 8(%esp), %edx
! 46: outw %ax, %dx
! 47: ret
! 48:
! 49: ENTRY(outl)
! 50: movl 4(%esp), %eax
! 51: movl 8(%esp), %edx
! 52: outl %eax, %dx
! 53: ret
! 54:
! 55: ENTRY(inb)
! 56: movl 4(%esp), %edx
! 57: xorl %eax, %eax
! 58: inb %dx, %al
! 59: ret
! 60:
! 61: ENTRY(inw)
! 62: movl 4(%esp), %edx
! 63: xorl %eax, %eax
! 64: inw %dx, %ax
! 65: ret
! 66:
! 67: ENTRY(inl)
! 68: movl 4(%esp), %edx
! 69: inl %dx, %eax
! 70: ret
! 71:
! 72: ENTRY(outb_p)
! 73: movl 4(%esp), %eax
! 74: movl 8(%esp), %edx
! 75: outb %al, %dx
! 76: outb %al, $0x80
! 77: ret
! 78:
! 79: ENTRY(inb_p)
! 80: movl 4(%esp), %edx
! 81: xorl %eax, %eax
! 82: inb %dx, %al
! 83: outb %al, $0x80
! 84: ret
! 85:
! 86: ENTRY(rdmsr)
! 87: movl 4(%esp), %ecx
! 88: rdmsr
! 89: movl 8(%esp), %ecx
! 90: movl %eax, (%ecx)
! 91: movl 12(%esp), %ecx
! 92: movl %edx, (%ecx)
! 93: ret
! 94:
! 95: ENTRY(wrmsr)
! 96: movl 4(%esp), %ecx
! 97: movl 8(%esp), %eax
! 98: movl 12(%esp), %edx
! 99: wrmsr
! 100: ret
! 101:
! 102: ENTRY(cpuid)
! 103: pushl %ebx
! 104: pushl %edi
! 105: movl 12(%esp), %eax
! 106: movl 16(%esp), %edi
! 107: cpuid
! 108: movl %eax, 0(%edi)
! 109: movl %ebx, 4(%edi)
! 110: movl %ecx, 8(%edi)
! 111: movl %edx, 12(%edi)
! 112: popl %edi
! 113: popl %ebx
! 114: ret
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