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__ */ 46