|
|
|
@ -23,23 +23,25 @@
|
|
|
|
|
// do not define C macros and other C stuff when this is included inside assembly
|
|
|
|
|
#ifndef __assembly
|
|
|
|
|
|
|
|
|
|
#define CSR_READ(csr_id, result) {\
|
|
|
|
|
#define CSR_READ(csr_id, result) { \
|
|
|
|
|
__asm__ ("csrr %0, %1" : "=r"((result)) : "I"((csr_id))); \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define CSR_WRITE(csr_id, val) {\
|
|
|
|
|
#define CSR_WRITE(csr_id, val) { \
|
|
|
|
|
__asm__ ("csrw %0, %1" :: "I"((csr_id)), "r"((val))); \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define HALT(code) {\
|
|
|
|
|
__asm__("csrw %0, %1" :: "I"(CSR_HALT), "I"(code)); \
|
|
|
|
|
#define HALT(code) { \
|
|
|
|
|
__asm__ ("csrw %0, %1" :: "I"(CSR_HALT), "I"(code)); \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void write_mtimecmp(unsigned long long int mtimecmp);
|
|
|
|
|
|
|
|
|
|
inline __attribute__((always_inline)) unsigned long long int read_time() {
|
|
|
|
|
inline __attribute__((always_inline)) unsigned long long int read_time()
|
|
|
|
|
{
|
|
|
|
|
unsigned int lower, higher;
|
|
|
|
|
__asm__(
|
|
|
|
|
|
|
|
|
|
__asm__ (
|
|
|
|
|
"csrr %0, %2\n"
|
|
|
|
|
"csrr %1, %3\n"
|
|
|
|
|
: "=r"(lower), "=r"(higher)
|
|
|
|
|