Improve comment about CSR (#70)

TheCloudlet · web-flow · commit 3bdabc8e3153 · 2022-10-16T12:13:01.000+08:00
diff --git a/src/emulate.c b/src/emulate.c
@@ -705,7 +705,7 @@ static bool csr_is_writable(uint32_t csr)
     return csr < 0xc00;
 }
 
-/* perform csrrw */
+/* perform csrrw (atoimc read and write) */
 static uint32_t csr_csrrw(struct riscv_t *rv, uint32_t csr, uint32_t val)
 {
     uint32_t *c = csr_get_ptr(rv, csr);
@@ -2154,4 +2154,4 @@ void ecall_handler(struct riscv_t *rv)
     assert(rv);
     rv_except_ecall_M(rv, 0);
     syscall_handler(rv);
-}
+}

Original file line number	Diff line number	Diff line change
`@@ -705,7 +705,7 @@ static bool csr_is_writable(uint32_t csr)`
`705`	`705`	`return csr < 0xc00;`
`706`	`706`	`}`
`707`	`707`
`708`		`-/* perform csrrw */`
	`708`	`+/* perform csrrw (atoimc read and write) */`
`709`	`709`	`static uint32_t csr_csrrw(struct riscv_t *rv, uint32_t csr, uint32_t val)`
`710`	`710`	`{`
`711`	`711`	`uint32_t *c = csr_get_ptr(rv, csr);`
`@@ -2154,4 +2154,4 @@ void ecall_handler(struct riscv_t *rv)`
`2154`	`2154`	`assert(rv);`
`2155`	`2155`	`rv_except_ecall_M(rv, 0);`
`2156`	`2156`	`syscall_handler(rv);`
`2157`		`-}`
	`2157`	`+}`