Xqci (Xqcia) extension: fix wrong exponent calculation for qc.normeu instructions

Signed-off-by: Albert Yosher <[email protected]>

Author: ayosher

arch_overlay/qc_iu/ext/Xqci.yaml

@@ -287,6 +287,7 @@ versions:
     - Fix IDL code and description increasing shift to 6 bit for qc.extdupr and qc.extduprh instructions
     - Fix IDL code sign extension logic for qc.lieq instruction
     - Fix wrong mantissa bit selection in qc.norm, qc.normu and qc.normeu instructions
+    - Fix wrong exponent calculation in qc.normeu instruction
   implies:
   - { name: Xqcia, version: "0.6.0" }
   - { name: Xqciac, version: "0.3.0" }

arch_overlay/qc_iu/ext/Xqcia.yaml

@@ -79,6 +79,7 @@ versions:
     email: [email protected]
   changes:
     - Fix wrong mantissa bit selection in qc.norm, qc.normu and qc.normeu instructions
+    - Fix wrong exponent calculation in qc.normeu instruction
 description: |
   The Xqcia extension includes eleven instructions to perform integer arithmetic.
 

arch_overlay/qc_iu/inst/Xqci/qc.normeu.yaml

@@ -33,5 +33,5 @@ access:
 operation(): |
   XReg clz = ((xlen() - 1) - $signed(highest_set_bit(X[rs1]))) & ~1;
   XReg mnt = (X[rs1] << (clz & ~1));
-  XReg exp = ((-clz) & ~1);
+  XReg exp =  (-(clz & ~1));
   X[rd] = {mnt[31:8],exp[7:0]};