If Rd is present, the result is stored there and Rn remains unchanged. If Rd is absent, the result is stored in Rn. If S is present, the low-order bit is copied into the Carry Flag. specifies the destination register, is the source register, and is the shift register.Īll 32 bits in the Rn register are shifted right one bit position, copying the Carry Flag into the high-order bit position. If absent, the condition flags are not changed. If ‘ S’ is present the condition flags are updated according to the result.
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