Commit | Line | Data |
---|---|---|
54b2aec1 NC |
1 | # CSRRW and CSRRWI always write CSR |
2 | # CSRRS, CSRRC, CSRRSI and CSRRCI write CSR when rs isn't zero. | |
3 | ||
4 | # csrrw rd, csr, rs | |
5 | csrrw a0, ustatus, a1 | |
6 | csrrw a0, cycle, a1 | |
7 | csrrw a0, cycle, zero | |
8 | csrrw zero, cycle, a1 | |
9 | csrrw zero, cycle, zero | |
10 | fscsr a0, a1 | |
11 | fsrm a0, a1 | |
12 | fsflags a0, a1 | |
13 | # csrrw zero, csr, rs | |
14 | csrw ustatus, a1 | |
15 | csrw cycle, a1 | |
16 | csrw cycle, zero | |
17 | fscsr a1 | |
18 | fsrm a1 | |
19 | fsflags a1 | |
20 | # csrrwi rd, csr, imm | |
21 | csrrwi a0, ustatus, 0xb | |
22 | csrrwi a0, cycle, 0xb | |
23 | csrrwi a0, cycle, 0x0 | |
24 | csrrwi zero, cycle, 0xb | |
25 | csrrwi zero, cycle, 0x0 | |
26 | # csrrwi zero, csr, imm | |
27 | csrwi ustatus, 0xb | |
28 | csrwi cycle, 0xb | |
29 | csrwi cycle, 0x0 | |
30 | ||
31 | # csrrs rd, csr, rs | |
32 | csrrs a0, ustatus, a1 | |
33 | csrrs a0, cycle, a1 | |
34 | csrrs a0, cycle, zero | |
35 | csrrs zero, cycle, a1 | |
36 | csrrs zero, cycle, zero | |
37 | # csrrs rd, csr, zero | |
38 | csrr a0, ustatus | |
39 | csrr a0, cycle | |
40 | csrr zero, cycle | |
41 | rdinstret a0 | |
42 | rdinstret zero | |
43 | rdinstreth a0 | |
44 | rdinstreth zero | |
45 | rdcycle a0 | |
46 | rdcycle zero | |
47 | rdcycleh a0 | |
48 | rdcycleh zero | |
49 | rdtime a0 | |
50 | rdtime zero | |
51 | rdtimeh a0 | |
52 | rdtimeh zero | |
53 | frcsr a0 | |
54 | frrm a0 | |
55 | frflags a0 | |
56 | # csrrs zero, csr, rs | |
57 | csrs ustatus, a0 | |
58 | csrs cycle, a0 | |
59 | csrs cycle, zero | |
60 | # csrrsi rd, csr, imm | |
61 | csrrsi a0, ustatus, 0xb | |
62 | csrrsi a0, cycle, 0xb | |
63 | csrrsi a0, cycle, 0x0 | |
64 | csrrsi zero, cycle, 0xb | |
65 | csrrsi zero, cycle, 0x0 | |
66 | # csrrsi zero, csr, imm | |
67 | csrsi ustatus, 0xb | |
68 | csrsi cycle, 0xb | |
69 | csrsi cycle, 0x0 | |
70 | ||
71 | # csrrc a0, csr, a1 | |
72 | csrrc a0, ustatus, a1 | |
73 | csrrc a0, cycle, a1 | |
74 | csrrc a0, cycle, zero | |
75 | csrrc zero, cycle, a1 | |
76 | csrrc zero, cycle, zero | |
77 | # csrrc zero, csr, rs | |
78 | csrc ustatus, a0 | |
79 | csrc cycle, a0 | |
80 | csrc cycle, zero | |
81 | # csrrci rd, csr, imm | |
82 | csrrci a0, ustatus, 0xb | |
83 | csrrci a0, cycle, 0xb | |
84 | csrrci a0, cycle, 0x0 | |
85 | csrrci zero, cycle, 0xb | |
86 | csrrci zero, cycle, 0x0 | |
87 | # csrrci zero, csr, imm | |
88 | csrci ustatus, 0xb | |
89 | csrci cycle, 0xb | |
90 | csrci cycle, 0x0 |