Zack Buhman
4a165d02ed
These changes fix logical consistency and correctness issues with the instruction definitions as printed in the SH4 manual. The most serious issues were: - div0u/div0s/div1 use `m` as a temporary variable which contradicts the existence of the `m` register number - missing semicolons - inconsistent references to immediate and displacement variable names
15 lines
355 B
Plaintext
15 lines
355 B
Plaintext
0000nnnn11000011
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r0 ← SignExtend32(R0);
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op1 ← SignExtend32(Rn);
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IF (AddressUnavailable(op1))
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THROW WADDERR, op1;
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IF (MMU() AND DataAccessMiss(op1))
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THROW WTLBMISS, op1;
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IF (MMU() AND WriteProhibited(op1))
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THROW WRITEPROT, op1;
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IF (MMU() AND NOT DirtyBit(op1))
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THROW FIRSTWRITE, op1;
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ALLOCO(op1);
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address ← ZeroExtend32(op1);
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WriteMemory32(op1, r0);
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