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authortaitep <taitep@taitep.se>2025-12-28 12:01:39 +0100
committertaitep <taitep@taitep.se>2025-12-28 12:01:39 +0100
commit9a9bef7dd7dce7d5c10b7cf49a42478ad85829ac (patch)
treeea832693678899e97aecf12bd620f0123b6ce3d2 /src/decode.rs
parent8024af6b1348b5f47fabe5a1949de54607a33888 (diff)
Remove consts.rs and just use plain types
Diffstat (limited to 'src/decode.rs')
-rw-r--r--src/decode.rs52
1 files changed, 25 insertions, 27 deletions
diff --git a/src/decode.rs b/src/decode.rs
index e24bac0..616f7f7 100644
--- a/src/decode.rs
+++ b/src/decode.rs
@@ -4,12 +4,10 @@
// This file is part of TRVE (https://gitea.taitep.se/taitep/trve)
// See LICENSE file in the project root for full license text.
-use crate::consts::{DWord, RegId, Word};
-
-const MASK_REGISTER: Word = 0x1f;
+const MASK_REGISTER: u32 = 0x1f;
#[derive(Debug, Clone, Copy)]
-pub struct Instruction(pub Word);
+pub struct Instruction(pub u32);
#[allow(dead_code)]
impl Instruction {
@@ -26,8 +24,8 @@ impl Instruction {
}
#[inline]
- pub fn rd(self) -> RegId {
- (self.0 >> 7 & MASK_REGISTER) as RegId
+ pub fn rd(self) -> u8 {
+ (self.0 >> 7 & MASK_REGISTER) as u8
}
#[inline]
@@ -36,13 +34,13 @@ impl Instruction {
}
#[inline]
- pub fn rs1(self) -> RegId {
- (self.0 >> 15 & MASK_REGISTER) as RegId
+ pub fn rs1(self) -> u8 {
+ (self.0 >> 15 & MASK_REGISTER) as u8
}
#[inline]
- pub fn rs2(self) -> RegId {
- (self.0 >> 20 & MASK_REGISTER) as RegId
+ pub fn rs2(self) -> u8 {
+ (self.0 >> 20 & MASK_REGISTER) as u8
}
#[inline]
@@ -51,38 +49,38 @@ impl Instruction {
}
#[inline]
- pub fn imm_i(self) -> DWord {
- (self.0 as i32 as i64 >> 20) as DWord
+ pub fn imm_i(self) -> u64 {
+ (self.0 as i32 as i64 >> 20) as u64
}
#[inline]
- pub fn imm_s(self) -> DWord {
- let imm_11_5 = (self.0 as i32 as i64 >> 25 << 5) as DWord;
- let imm_4_0 = (self.0 >> 7 & 0x1f) as DWord;
+ pub fn imm_s(self) -> u64 {
+ let imm_11_5 = (self.0 as i32 as i64 >> 25 << 5) as u64;
+ let imm_4_0 = (self.0 >> 7 & 0x1f) as u64;
imm_11_5 | imm_4_0
}
#[inline]
- pub fn imm_b(self) -> DWord {
- let imm_12 = ((self.0 & 0x8000_0000) as i32 as i64 >> (31 - 12)) as DWord;
- let imm_10_5 = ((self.0 >> 25 & 0x3f) << 5) as DWord;
- let imm_4_1 = ((self.0 >> 8 & 0xf) << 1) as DWord;
- let imm_11 = ((self.0 >> 7 & 1) << 11) as DWord;
+ pub fn imm_b(self) -> u64 {
+ let imm_12 = ((self.0 & 0x8000_0000) as i32 as i64 >> (31 - 12)) as u64;
+ let imm_10_5 = ((self.0 >> 25 & 0x3f) << 5) as u64;
+ let imm_4_1 = ((self.0 >> 8 & 0xf) << 1) as u64;
+ let imm_11 = ((self.0 >> 7 & 1) << 11) as u64;
imm_12 | imm_10_5 | imm_4_1 | imm_11
}
#[inline]
- pub fn imm_u(self) -> DWord {
- (self.0 & 0xffff_f000) as i32 as i64 as DWord
+ pub fn imm_u(self) -> u64 {
+ (self.0 & 0xffff_f000) as i32 as i64 as u64
}
#[inline]
- pub fn imm_j(self) -> DWord {
- let imm_20 = ((self.0 & 0x8000_0000) as i32 as i64 >> (31 - 20)) as DWord;
- let imm_10_1 = ((self.0 >> 21 & 0x3ff) << 1) as DWord;
- let imm_11 = ((self.0 >> 20 & 1) << 11) as DWord;
- let imm_19_12 = ((self.0 >> 12 & 0xff) << 12) as DWord;
+ pub fn imm_j(self) -> u64 {
+ let imm_20 = ((self.0 & 0x8000_0000) as i32 as i64 >> (31 - 20)) as u64;
+ let imm_10_1 = ((self.0 >> 21 & 0x3ff) << 1) as u64;
+ let imm_11 = ((self.0 >> 20 & 1) << 11) as u64;
+ let imm_19_12 = ((self.0 >> 12 & 0xff) << 12) as u64;
imm_20 | imm_10_1 | imm_11 | imm_19_12
}