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The bug report discusses an issue with QEMU's emulation of the `fmadds` instruction on PowerPC64LE architecture. It provides specific test results showing incorrect behavior under QEMU compared to real hardware. The analysis indicates that QEMU is not using the correct floating-point functions (`fma()` or `fmaf()`) from the host system, which are functioning properly in the host's glibc.
Since the issue pertains directly to how QEMU emulates a specific instruction (fmadds), it falls under the category of an **instruction** bug. The problem is not related to system calls or general runtime errors but specifically to the emulation of a particular machine instruction.
Answer: **instruction**
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