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authorDavid Li <li.davidm96@gmail.com>2015-12-20 23:16:56 -0500
committerDavid Li <li.davidm96@gmail.com>2015-12-20 23:16:56 -0500
commit39ce6b062b6d36495098e39dfd813212757ac4f3 (patch)
tree1bb6a13b5934409793528bfb054d5243e52c9538 /src/isa/mod.rs
parent600fcc814e27e7f38969726e1263a36592bbde58 (diff)
Fix immediate calculation in JAL
Diffstat (limited to 'src/isa/mod.rs')
-rw-r--r--src/isa/mod.rs4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/isa/mod.rs b/src/isa/mod.rs
index 6519a34..49fad10 100644
--- a/src/isa/mod.rs
+++ b/src/isa/mod.rs
@@ -146,7 +146,7 @@ impl Instruction {
let low11 = (self.word >> 20) & 0x1;
let low12 = (self.word >> 12) & 0xFF;
// Want sign-extension
- let low20 = (((self.word as SignedWord) >> 30) & 0x1) as Word;
+ let low20 = ((self.word as SignedWord) >> 30) as Word;
((low20 << 20) | (low12 << 12) | (low11 << 11) | (low1 << 1)) as SignedWord
}
@@ -154,7 +154,7 @@ impl Instruction {
let low1 = (self.word >> 8) & 0xF;
let low5 = (self.word >> 25) & 0x3F;
let low11 = (self.word >> 7) & 0x1;
- let low12 = (((self.word as SignedWord) >> 31) & 0x1) as Word;
+ let low12 = ((self.word as SignedWord) >> 31) as Word;
((low12 << 12) | (low11 << 11) | (low5 << 5) | (low1 << 1)) as SignedWord
}
}