Zihui Guo

Non-Canonical NaN Representation in Double-Precision Results from fmadd.d Instruction

8

**Describe the bug** When executing the **fmadd.d fa5, ft0, fa3, fa1, rtz i**nstruction in the XS, the resulting value in fa5 for a NaN outcome does not conform to the...

**Describe the bug** On the Kronos RISC-V processor, instructions that operate on non-existent Control Status Registers (CSRs) are executed successfully without raising an exception(as described in issue #9 ). This...

fix exit code

5

To fix #2012 The previous code would fail to exit normally under certain circumstances. For example, before exiting, `a0=0b01` (which becomes `0b10` after left shifting), so it is necessary to...

[BUG] Incorrect Result from 'fdiv' Operation Leading to Negative Infinity Instead of Smallest Negative Number

4

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description When performing floating-point division using the `fdiv.d` instruction in...

[BUG] Unexpected Rounding Behavior During fsqrt.d Execution

4

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description In some rounding mode, precision errors occur when calculating...

[BUG] Incorrect Accumulation of ‘OF’ Flag in fflags After Executing fsqrt.d on Infinity

1

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description When executing the `fsqrt.d` instruction on a double-precision floating-point...

[BUG] Failure to Trigger NX Exception Under Specific Microarchitectural Conditions

4

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description **Description** I have encountered a bug where the NX...

[BUG] Allowing illegal access to addresses outside the PMP range and memory boundaries.

7

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description EDIT: The CVA6 can access an address beyond the...

[BUG] Unexpected Behavior in CVA6 with Illegal Instruction Altering Register Values

2

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description **Describe the bug:** In the CVA6 RISC-V core implementation,...

[BUG] Incorrect 'minstret' update upon encountering an illegal instruction

4

### Is there an existing CVA6 bug for this? - [X] I have searched the existing bug issues ### Bug Description **Describe the bug:** In the CVA6 architecture, executing an...