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section 7 - Index of

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The following notes apply to Table A-5:1. The bit is cleared.2. V - Set if an arithmetic overflow occurs in the 56-bit A or B result or if the MS bit. <strong>of</strong> the destination operand is changed as a result <strong>of</strong> the left shift. Cleared otherwise.3. For destination operand CCR, the bits are cleared if the corresponding bits in theimmediate data are cleared. Otherwise they are not affected. For other destinationoperands, the bits are not affected.4. C - Set if bit 55 <strong>of</strong> the source operand was set prior to instruction execution.Cleared otherwise.5. C - Set if bit 0 <strong>of</strong> the source operand was set prior to instruction execution. Clearedotherwise.6. For destination operand CCR, the bits are set if the corresponding bits in the immediatedata are set. Otherwise, they are not affected. For other destination operands,the bits are not affected.7. C - Set if bit 55 <strong>of</strong> the result is cleared. Cleared otherwise.8. N - Set if bit 47 <strong>of</strong> the A or B result is set. Cleared otherwise.9. Z - Set if bits 47 - 24 <strong>of</strong> the A or B result are zero. Cleared otherwise.10. C - Set if bit 47 <strong>of</strong> the source operand was set prior to instruction execution.Cleared otherwise.11. C - Set if bit· 24 <strong>of</strong> the source operand was set prior to instruction execution.Cleared otherwise.12. Set according to the value pulled from the stack.13. For destination operand SR, the bits are set according to the corresponding bit <strong>of</strong>the source operand. If SR is not specified as a destination operand, the L bit is setif data limiting occurred and the S bit is computed according to the definition. (SeeSection A.5.) Otherwise, the bits are unaffected.14. Due to complexity, refer to the detailed description <strong>of</strong> the instruction.-A.6 PARALLEL MOVE DESCRIPTIONSMany <strong>of</strong> the instructions in the DSP56K instruction set allow optional parallel data busmovement. Section A.7 indicates the parallel move option in the instruction syntax withthe statement "'parallel move)". The MOVE instruction is equivalent to a NOP with parallelmoves. Therefore, a detai led description <strong>of</strong> each parallel move is given with theMOVE instruction details in Section A.7, beginning on page A-160.

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