#define xRA 1 /* return address (aka link register) */ | |
#define xSP 2 /* stack pointer */ | |
#define xGP 3 /* global pointer */ | |
#define xTP 4 /* thread pointer */ | |
#define xA0 10 /* gpr[10-17] are syscall arguments */ | |
#define xA1 11 | |
#define xA2 12 | |
#define xA3 13 | |
#define xA4 14 | |
#define xA5 15 | |
#define xA6 16 | |
#define xA7 17 /* syscall number for RVI ABI */ | |
#define xT0 5 /* syscall number for RVE ABI */ |