Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * arch/alpha/lib/copy_page.S | |
3 | * | |
4 | * Copy an entire page. | |
5 | */ | |
6 | ||
7 | .text | |
8 | .align 4 | |
9 | .global copy_page | |
10 | .ent copy_page | |
11 | copy_page: | |
12 | .prologue 0 | |
13 | ||
14 | lda $18,128 | |
15 | nop | |
16 | unop | |
17 | nop | |
18 | ||
19 | 1: ldq $0,0($17) | |
20 | ldq $1,8($17) | |
21 | ldq $2,16($17) | |
22 | ldq $3,24($17) | |
23 | ||
24 | ldq $4,32($17) | |
25 | ldq $5,40($17) | |
26 | ldq $6,48($17) | |
27 | ldq $7,56($17) | |
28 | ||
29 | stq $0,0($16) | |
30 | subq $18,1,$18 | |
31 | stq $1,8($16) | |
32 | addq $17,64,$17 | |
33 | ||
34 | stq $2,16($16) | |
35 | stq $3,24($16) | |
36 | stq $4,32($16) | |
37 | stq $5,40($16) | |
38 | ||
39 | stq $6,48($16) | |
40 | stq $7,56($16) | |
41 | addq $16,64,$16 | |
42 | bne $18, 1b | |
43 | ||
44 | ret | |
45 | nop | |
46 | unop | |
47 | nop | |
48 | ||
49 | .end copy_page |