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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/2175')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/2175 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/2175 b/results/classifier/qwen3:32b/reasoning/instruction/2175 new file mode 100644 index 00000000..7695a26f --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/2175 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a bug related to the BLSI instruction's CF flag computation in QEMU. The problem seems to be that when running the example code natively versus under QEMU, the return codes differ, which suggests a discrepancy in how the BLSI instruction affects the flags, specifically the Carry Flag (CF). + +First, I need to recall what the BLSI instruction does. BLSI stands for Bit Manipulation Instruction Set, specifically Base Level Set Isolated. From what I remember, BLSI isolates the rightmost set bit in a register. For example, if a register has the value 0x12 (binary 10010), BLSI would set the result to 0x2 (the rightmost set bit). The CF flag is part of the processor's flags register, which is modified by arithmetic operations. However, BLSI is a bit manipulation instruction, so I need to check whether it's supposed to affect the CF flag. + +Looking into the Intel documentation for BLSI (which I might be recalling from memory), I think that BLSI does not affect the CF flag. However, the user is suggesting that in their test case, the CF flag is being set incorrectly by QEMU's emulation of BLSI. The test case involves setting up certain flags with 'pushf' and 'popf', then executing BLSI, then checking the flags again. The difference in the return codes between native execution and QEMU suggests that QEMU's implementation of the BLSI instruction's effect on the flags (specifically CF) is incorrect. + +The user mentions that a previous issue (#1370) was related but not fully fixed. The key here is that the problem is about the CF flag computation during the BLSI instruction. Since the BLSI instruction's handling in QEMU is causing the wrong CF flag value, this would be an error in how the instruction is implemented in QEMU. Therefore, the category for this bug would be "instruction", as it's a specific instruction's behavior being incorrect in the emulator. +</think> + +instruction \ No newline at end of file |