SD32 110110 |
rt |
base |
offset |
6 |
5 |
5 |
16 |
SD rt, offset(base) |
microMIPS64 |
Store Doubleword |
Store Doubleword
To store a doubleword to memory.
memory[GPR[base] + offset] = GPR[rt]
The 64-bit doubleword in GPR rt is stored in memory at the location specified by the aligned effective address. The
16-bit signed offset is added to the contents of GPR base to form the effective address.
Pre-release 6: The effective address must be naturally-aligned. If any of the 3 least-significant bits of the effective address is non-zero, an Address Error exception occurs.
Release 6 allows hardware to provide address misalignment support in lieu of requiring natural alignment.
Note: The pseudocode is not completely adapted for Release 6 misalignment support as the handling is implementation dependent.
vAddr = sign_extend(offset) + GPR[base] (pAddr, CCA) = AddressTranslation (vAddr, DATA, STORE) datadoubleword = GPR[rt] StoreMemory (CCA, DOUBLEWORD, datadoubleword, pAddr, vAddr, DATA)
TLB Refill, TLB Invalid, TLB Modified, Address Error, Reserved Instruction, Watch