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-rw-r--r--src/basic_uart.rs47
1 files changed, 24 insertions, 23 deletions
diff --git a/src/basic_uart.rs b/src/basic_uart.rs
index 3380515..ec687e3 100644
--- a/src/basic_uart.rs
+++ b/src/basic_uart.rs
@@ -14,7 +14,8 @@ use std::time::Duration;
use nix::fcntl::fcntl;
use nix::fcntl::{FcntlArg, OFlag};
use trve::consts::{Byte, DWord, HWord, Word};
-use trve::mem::{MemAccessFault, MemDeviceInterface, PageNum};
+use trve::exceptions::ExceptionType;
+use trve::mem::{MemDeviceInterface, PageNum};
/// byte 0: rx/tx
/// byte 1: status (------rt, r=rxready, t=txready)/none
@@ -82,12 +83,12 @@ impl MemDeviceInterface for BasicUart {
_page: PageNum,
_offset: u16,
_value: DWord,
- ) -> Result<(), MemAccessFault> {
- Err(MemAccessFault)
+ ) -> Result<(), ExceptionType> {
+ Err(ExceptionType::StoreAmoAccessFault)
}
- fn write_word(&self, _page: PageNum, _offset: u16, _value: Word) -> Result<(), MemAccessFault> {
- Err(MemAccessFault)
+ fn write_word(&self, _page: PageNum, _offset: u16, _value: Word) -> Result<(), ExceptionType> {
+ Err(ExceptionType::StoreAmoAccessFault)
}
fn write_hword(
@@ -95,13 +96,13 @@ impl MemDeviceInterface for BasicUart {
_page: PageNum,
_offset: u16,
_value: HWord,
- ) -> Result<(), MemAccessFault> {
- Err(MemAccessFault)
+ ) -> Result<(), ExceptionType> {
+ Err(ExceptionType::StoreAmoAccessFault)
}
- fn write_byte(&self, page: PageNum, offset: u16, value: Byte) -> Result<(), MemAccessFault> {
+ fn write_byte(&self, page: PageNum, offset: u16, value: Byte) -> Result<(), ExceptionType> {
if page > 0 {
- return Err(MemAccessFault);
+ return Err(ExceptionType::StoreAmoAccessFault);
}
match offset {
@@ -109,31 +110,31 @@ impl MemDeviceInterface for BasicUart {
self.write(value);
Ok(())
}
- _ => Err(MemAccessFault),
+ _ => Err(ExceptionType::StoreAmoAccessFault),
}
}
- fn read_dword(&self, _page: PageNum, _offset: u16) -> Result<DWord, MemAccessFault> {
- Err(MemAccessFault)
+ fn read_dword(&self, _page: PageNum, _offset: u16) -> Result<DWord, ExceptionType> {
+ Err(ExceptionType::LoadAccessFault)
}
- fn read_word(&self, _page: PageNum, _offset: u16) -> Result<Word, MemAccessFault> {
- Err(MemAccessFault)
+ fn read_word(&self, _page: PageNum, _offset: u16) -> Result<Word, ExceptionType> {
+ Err(ExceptionType::LoadAccessFault)
}
- fn read_hword(&self, _page: PageNum, _offset: u16) -> Result<HWord, MemAccessFault> {
- Err(MemAccessFault)
+ fn read_hword(&self, _page: PageNum, _offset: u16) -> Result<HWord, ExceptionType> {
+ Err(ExceptionType::LoadAccessFault)
}
- fn read_byte(&self, page: PageNum, offset: u16) -> Result<Byte, MemAccessFault> {
+ fn read_byte(&self, page: PageNum, offset: u16) -> Result<Byte, ExceptionType> {
if page > 0 {
- return Err(MemAccessFault);
+ return Err(ExceptionType::LoadAccessFault);
}
match offset {
0 => Ok(self.read()),
1 => Ok(1 | (self.can_read() as u8) << 1),
- _ => Err(MemAccessFault),
+ _ => Err(ExceptionType::LoadAccessFault),
}
}
@@ -141,15 +142,15 @@ impl MemDeviceInterface for BasicUart {
&self,
_page: PageNum,
_offset: u16,
- ) -> Result<&std::sync::atomic::AtomicU32, MemAccessFault> {
- Err(MemAccessFault)
+ ) -> Result<&std::sync::atomic::AtomicU32, ExceptionType> {
+ Err(ExceptionType::StoreAmoAccessFault)
}
fn get_atomic_dword(
&self,
_page: PageNum,
_offset: u16,
- ) -> Result<&std::sync::atomic::AtomicU64, MemAccessFault> {
- Err(MemAccessFault)
+ ) -> Result<&std::sync::atomic::AtomicU64, ExceptionType> {
+ Err(ExceptionType::StoreAmoAccessFault)
}
}