Implement a GDB stub and fix another huge issue in S-type immediate decoding

2025-12-27 11:48:36 +01:00
parent a64fcaa3b5
commit 9f8e9ec380
9 changed files with 636 additions and 40 deletions
--- a/src/decode.rs
+++ b/src/decode.rs
@@ -57,7 +57,9 @@ impl Instruction {

    #[inline]
    pub fn imm_s(self) -> DWord {
-        (self.0 as i32 as i64 >> (25 - 5) & (0x7f << 5)) as DWord | (self.0 >> 7 & 0b11111) as 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;
+        imm_11_5 | imm_4_0
    }

    #[inline]