qemu/target/riscv/cpu_user.h

14 lines
360 B
C

#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 goes here */