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

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [ld/] [testsuite/] [ld-m68hc11/] [relax-group.s] - Blame information for rev 262

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 205 julius
;;; Test 68HC11 linker relaxation (group relax)
2
;;; 
3
        .sect .text
4
        .globl _start
5
_start:
6
;;;
7
;;; The following group of instructions are adjusted.
8
;;;
9
        .relax  L1x
10
        ldx     #table
11
        bset    0,x #4
12
L1x:
13
        .relax  L1y
14
        ldy     #table
15
        bset    0,y #4
16
L1y:
17
        .relax  L2x
18
        ldx     #table+3
19
        bset    0,x #4
20
        bset    1,x #8
21
L2x:
22
        .relax  L2y
23
        ldy     #table+3
24
        bset    0,y #4
25
        bset    1,y #8
26
L2y:
27
        .relax  L3x
28
        ldx     #table+6
29
        bset    0,x #4
30
        bset    1,x #8
31
        bset    2,x #12
32
        bset    3,x #12
33
        bset    4,x #12
34
        bset    5,x #12
35
L3x:
36
        .relax  L3y
37
        ldy     #table+6
38
        bset    0,y #4
39
        bset    1,y #8
40
        bset    2,y #12
41
        bset    3,y #12
42
        bset    4,y #12
43
        bset    5,y #12
44
L3y:
45
        ;; Next branch is always relative.  It must be adjusted while
46
        ;; above instructions are relaxed.
47
        bra     _start
48
;;;
49
;;; This group has the first two bset insn relaxable while the
50
;;; others are not.  The ldx/ldy must not be removed.
51
;;; 
52
        .relax  L4x
53
        ldx     #table+0xfe
54
        bset    0,x #4
55
        bset    1,x #8
56
        bset    2,x #12
57
        bset    3,x #12
58
        bset    4,x #12
59
        bset    5,x #12
60
L4x:
61
        .relax  L4y
62
        ldy     #table+0xfe
63
        bset    0,y #4
64
        bset    1,y #8
65
        bset    2,y #12
66
        bset    3,y #12
67
        bset    4,y #12
68
        bset    5,y #12
69
L4y:
70
;;;
71
;;; Relax group for bclr
72
;;; 
73
        .relax  L5x
74
        ldx     #table+10
75
        bclr    0,x #4
76
        bclr    1,x #8
77
L5x:
78
        .relax  L5y
79
        ldy     #table+16
80
        bclr    10,y #4
81
        bclr    11,y #8
82
L5y:
83
;;;
84
;;; Relax group for brset (with backward branch)
85
;;; 
86
        .relax  L6x
87
        ldx     #table+8
88
        brset   0,x #4 L5y
89
L6x:
90
        .relax  L7x
91
        ldy     #table+8
92
        brset   0,y #4 L6x
93
L7x:
94
;;;
95
;;; Relax group for brset (with forward branch)
96
;;; 
97
        .relax  L8x
98
        ldx     #table+8
99
        brset   0,x #4 brend
100
L8x:
101
        .relax  L8y
102
        ldy     #table+8
103
        brset   0,y #4 brend
104
L8y:
105
;;;
106
;;; Relax group for brclr (with backward branch)
107
;;; 
108
        .relax  L9x
109
        ldx     #table+8
110
        brclr   0,x #4 L8y
111
L9x:
112
        .relax  L9y
113
        ldy     #table+8
114
        brclr   0,y #4 L9x
115
L9y:
116
;;;
117
;;; Relax group for brclr (with forward branch)
118
;;; 
119
        .relax  L10x
120
        ldx     #table+8
121
        brclr   0,x #4 brend
122
L10x:
123
        .relax  L10y
124
        ldy     #table+8
125
        brclr   0,y #4 brend
126
L10y:
127
        nop
128
brend:
129
;;;
130
;;; The following are wrong use of .relax groups.
131
;;;
132
        .relax  w1
133
w1:
134
        .relax  w2
135
        bset    0,x #4
136
w2:
137
        .relax w3
138
        ldx     #table
139
w3:
140
        .relax w4
141
        ldy     #table+8
142
w4:
143
        .relax w5
144
        rts
145
w5:
146
;;;
147
;;; Next insn is not in a .relax group
148
        ldx     #table
149
        bset    0,x #5
150
        bra     _start
151
        rts
152
 
153
        .sect .page0
154
        .globl table
155
table:  .long 0
156
table4: .long 0
157
table8: .long 0
158
        .skip   10
159
end_table:
160
        .long 0
161
 

powered by: WebSVN 2.1.0

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