分类：
2008-04-03 16:58:38
|
Register Name |
Number |
Usage |
|
zero |
0 |
Constant 0 |
|
at |
1 |
Reserved for assembler |
|
v0 |
2 |
Expression evaluation and results of a function |
|
v1 |
3 |
Expression evaluation and results of a function |
|
a0 |
4 |
Argument 1 |
|
a1 |
5 |
Argument 2 |
|
a2 |
6 |
Argument 3 |
|
a3 |
7 |
Argument 4 |
|
t0 |
8 |
Temporary (not preserved across call) |
|
t1 |
9 |
Temporary (not preserved across call) |
|
t2 |
10 |
Temporary (not preserved across call) |
|
t3 |
11 |
Temporary (not preserved across call) |
|
t4 |
12 |
Temporary (not preserved across call) |
|
t5 |
13 |
Temporary (not preserved across call) |
|
t6 |
14 |
Temporary (not preserved across call) |
|
t7 |
15 |
Temporary (not preserved across call) |
|
s0 |
16 |
Saved temporary (preserved across call) |
|
s1 |
17 |
Saved temporary (preserved across call) |
|
s2 |
18 |
Saved temporary (preserved across call) |
|
s3 |
19 |
Saved temporary (preserved across call) |
|
s4 |
20 |
Saved temporary (preserved across call) |
|
s5 |
21 |
Saved temporary (preserved across call) |
|
s6 |
22 |
Saved temporary (preserved across call) |
|
s7 |
23 |
Saved temporary (preserved across call) |
|
t8 |
24 |
Temporary (not preserved across call) |
|
t9 |
25 |
Temporary (not preserved across call) |
|
k0 |
26 |
Reserved for OS kernel |
|
k1 |
27 |
Reserved for OS kernel |
|
gp |
28 |
Pointer to global area |
|
sp |
29 |
Stack pointer |
|
fp |
30 |
Frame pointer |
|
ra |
31 |
Return address (used by function call) |
