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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/deepseek-r1:14b/reasoning/mistranslation/652
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloademulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
emulator-bug-study-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
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+<think>
+Okay, so I'm trying to classify this bug report related to QEMU. The user provided a detailed report about an issue in the Tricore translation code. Let me break it down step by step.
+
+First, the problem is with the translation of a specific 16-bit opcode: OPC1_16_SRO_LD_H. The description mentions that the current implementation isn't done properly. From what I understand, this opcode is part of the Tricore architecture's instruction set, and QEMU is responsible for translating these instructions into something the target can execute.
+
+Looking at the details, the issue lies in how the address is calculated. In the code, it uses 'address' as is, but according to the spec (page 210 of the Infineon document), it should be multiplied by 2. So the incorrect line is using 'address', whereas it should be 'address * 2'. This means that when generating the offset for loading, the address isn't scaled correctly, leading to wrong memory accesses.
+
+The user provided a fix where they multiply the address by 2, which resolved the issue as confirmed by tests with gcc and the Infineon simulator. So this is definitely a translation bug in QEMU's Tricore target code.
+
+Now, looking at the categories given: mistranslation, assembly lowering, other, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor. 
+
+I need to figure out which category this falls under. The bug is in the translation of an instruction into the target architecture's code. Specifically, it's about how QEMU maps the source (Tricore) opcode to the IR or target instructions. Since it's a problem with the semantics of the instruction mapping, that sounds like "mistranslation."
+
+Other options like 'device' or 'network' don't fit because this isn't about hardware devices or networking; it's purely about how an instruction is handled in the CPU's translation. Similarly, 'performance' doesn't apply here as there's no issue with speed but rather correctness.
+
+So, putting it all together, the bug report is related to incorrect semantic mapping during translation, which directly points to "mistranslation."
+</think>
+
+The bug involves a mistake in translating an instruction, specifically not scaling the address correctly. This falls under mistranslation as it's an error in the semantic mapping of the source code.
+
+**Answer:** mistranslation
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