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