OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [tags/] [tn_m001/] [newlib/] [newlib/] [libc/] [sys/] [go32/] [int86x.s] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 39 lampret
        .data
2
ds:
3
        .word   0
4
es:
5
        .word   0
6
fs:
7
        .word   0
8
gs:
9
        .word   0
10
 
11
        .globl  int86
12
int86:
13
        .byte   0x2e
14
        push    ds
15
        pop     %ds
16
        .byte   0x2e
17
        push    es
18
        pop     %es
19
        .byte   0x2e
20
        push    fs
21
        pop     %fs
22
        .byte   0x2e
23
        push    gs
24
        pop     %gs
25
 
26
        .byte   0xcd
27
int86_vec:
28
        .byte   0x03
29
        ret
30
 
31
        .text
32
        .globl  _int86x
33
_int86x:
34
        movl    16(%esp), %eax
35
 
36
        movw    2(%eax), %cx
37
        movw    %cx, ds
38
        movw    4(%eax), %cx
39
        movw    %cx, es
40
        movw    6(%eax), %cx
41
        movw    %cx, fs
42
        movw    8(%eax), %cx
43
        movw    %cx, gs
44
 
45
        jmp     int86_common
46
 
47
        .globl  _int86
48
_int86:
49
        movw    %ds, %ax
50
        movw    %ax, ds
51
        movw    %ax, es
52
        movw    %ax, fs
53
        movw    %ax, gs
54
        jmp     int86_common
55
 
56
int86_common:
57
        pushl   %ebp
58
        movl    %esp,%ebp
59
        pushl   %ebx
60
        pushl   %esi
61
        pushl   %edi
62
        pushf
63
 
64
        movl    8(%ebp),%eax
65
        movb    %al,int86_vec
66
 
67
        movl    12(%ebp),%eax
68
        movl    4(%eax),%ebx
69
        movl    8(%eax),%ecx
70
        movl    12(%eax),%edx
71
        movl    16(%eax),%esi
72
        movl    20(%eax),%edi
73
        movl    (%eax),%eax
74
 
75
        push    %ds
76
        push    %es
77
        call    int86
78
        pop     %es
79
        pop     %ds
80
 
81
        pushf
82
        pushl   %eax
83
        movl    %esp,%ebp
84
        addl    $24,%ebp
85
        movl    16(%ebp),%eax
86
        popl    (%eax)
87
        movl    %ebx,4(%eax)
88
        movl    %ecx,8(%eax)
89
        movl    %edx,12(%eax)
90
        movl    %esi,16(%eax)
91
        movl    %edi,20(%eax)
92
        popl    %ebx    /* flags */
93
        movl    %ebx,28(%eax)
94
        andl    $1,%ebx
95
        movl    %ebx,24(%eax)
96
        movl    (%eax),%eax
97
 
98
        popf
99
        popl    %edi
100
        popl    %esi
101
        popl    %ebx
102
        popl    %ebp
103
        ret

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.