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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/1641861')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/1641861 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/1641861 b/results/classifier/qwen3:32b/reasoning/instruction/1641861 new file mode 100644 index 000000000..801bdcef5 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/1641861 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting a bug in QEMU's ARM emulation related to the FPSCR register. They provided a test case where writing to FPSCR with certain bits set gives different results between real hardware and QEMU. + +The key point is about the FPSCR's RES0 bits. The ARM manual says those bits should be zero, and writing to them should be ignored. On real hardware, when you write to those bits, they should remain zero. But according to the test results, QEMU allows those bits to be set, which is incorrect. + +The problem here is in the emulation of the FPSCR register's behavior. When the code uses vmsr fpscr, r0 to write the value from r0 into FPSCR, QEMU isn't masking out the RES0 bits as the real hardware would. So when the program writes to those reserved bits, QEMU doesn't enforce them to be zero, leading to incorrect values being stored. + +Looking at the categories: instruction, syscall, or runtime. The issue is with the execution of the vmsr instruction, which is an ARM instruction. The bug is that QEMU's handling of that specific instruction (vmsr) is incorrect regarding the FPSCR's RES0 bits. Therefore, this falls under the "instruction" category because it's a fault in how the instruction is emulated. It's not a syscall issue, as syscalls aren't involved here. It's also not a general runtime error but specifically about instruction execution. +</think> + +instruction \ No newline at end of file |