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a976d7642a
The M-profile architecture floating point system supports lazy FP state preservation, where FP registers are not pushed to the stack when an exception occurs but are instead only saved if and when the first FP instruction in the exception handler is executed. Implement this in QEMU, corresponding to the check of LSPACT in the pseudocode ExecuteFPCheck(). Backports commit e33cf0f8d8c9998a7616684f9d6aa0d181b88803 from qemu |
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