extern "C" {
#endif
-enum RVV_CSR {
- RVV_VSTART = 0,
- RVV_VXSAT,
- RVV_VXRM,
- RVV_VCSR,
-};
-
-__extension__ extern __inline unsigned long
-__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
-vread_csr(enum RVV_CSR csr)
-{
- unsigned long rv = 0;
- switch (csr)
- {
- case RVV_VSTART:
- __asm__ __volatile__ ("csrr\t%0,vstart" : "=r"(rv) : : "memory");
- break;
- case RVV_VXSAT:
- __asm__ __volatile__ ("csrr\t%0,vxsat" : "=r"(rv) : : "memory");
- break;
- case RVV_VXRM:
- __asm__ __volatile__ ("csrr\t%0,vxrm" : "=r"(rv) : : "memory");
- break;
- case RVV_VCSR:
- __asm__ __volatile__ ("csrr\t%0,vcsr" : "=r"(rv) : : "memory");
- break;
- }
- return rv;
-}
-
-__extension__ extern __inline void
-__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
-vwrite_csr(enum RVV_CSR csr, unsigned long value)
-{
- switch (csr)
- {
- case RVV_VSTART:
- __asm__ __volatile__ ("csrw\tvstart,%z0" : : "rJ"(value) : "memory");
- break;
- case RVV_VXSAT:
- __asm__ __volatile__ ("csrw\tvxsat,%z0" : : "rJ"(value) : "memory");
- break;
- case RVV_VXRM:
- __asm__ __volatile__ ("csrw\tvxrm,%z0" : : "rJ"(value) : "memory");
- break;
- case RVV_VCSR:
- __asm__ __volatile__ ("csrw\tvcsr,%z0" : : "rJ"(value) : "memory");
- break;
- }
-}
-
/* NOTE: This implementation of riscv_vector.h is intentionally short. It does
not define the RVV types and intrinsic functions directly in C and C++
code, but instead uses the following pragma to tell GCC to insert the