Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef __alpha_regdef_h__
3#define __alpha_regdef_h__
4
5#define v0 $0 /* function return value */
6
7#define t0 $1 /* temporary registers (caller-saved) */
8#define t1 $2
9#define t2 $3
10#define t3 $4
11#define t4 $5
12#define t5 $6
13#define t6 $7
14#define t7 $8
15
16#define s0 $9 /* saved-registers (callee-saved registers) */
17#define s1 $10
18#define s2 $11
19#define s3 $12
20#define s4 $13
21#define s5 $14
22#define s6 $15
23#define fp s6 /* frame-pointer (s6 in frame-less procedures) */
24
25#define a0 $16 /* argument registers (caller-saved) */
26#define a1 $17
27#define a2 $18
28#define a3 $19
29#define a4 $20
30#define a5 $21
31
32#define t8 $22 /* more temps (caller-saved) */
33#define t9 $23
34#define t10 $24
35#define t11 $25
36#define ra $26 /* return address register */
37#define t12 $27
38
39#define pv t12 /* procedure-variable register */
40#define AT $at /* assembler temporary */
41#define gp $29 /* global pointer */
42#define sp $30 /* stack pointer */
43#define zero $31 /* reads as zero, writes are noops */
44
45#endif /* __alpha_regdef_h__ */