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Minor optimisation in shl

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Fabian 2020-12-31 19:14:33 -06:00
parent 499e2e8111
commit e79ecc5279
1 changed files with 1 additions and 1 deletions
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src/rust/cpu/arith.rs
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@ -831,7 +831,7 @@ pub unsafe fn shl32(dest_operand: i32, count: i32) -> i32 {
*last_op_size = OPSIZE_32;
*flags_changed = FLAGS_ALL & !1 & !FLAG_OVERFLOW;
let b = dest_operand >> 32 - count & 1;
*flags = *flags & !1 & !FLAG_OVERFLOW | b | (b ^ result >> 31 & 1) << 11 & FLAG_OVERFLOW;
*flags = *flags & !1 & !FLAG_OVERFLOW | b | (b ^ result >> 31) << 11 & FLAG_OVERFLOW;
return result;
};
}