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ST10F269Z2QX データシート(PDF) 41 Page - STMicroelectronics |
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ST10F269Z2QX データシート(HTML) 41 Page - STMicroelectronics |
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41 / 161 page  ST10F269Z2Qx 41/161 The Table 5 shows the various combinations of pointer post-modification for each of these 2 new addressing modes. In this document the symbols “[Rwn⊗]” and “[IDXi⊗]” refer to these addressing modes. Table 5 : Pointer Post-modification Combinations for IDXi and Rwn Symbol Mnemonic Address Pointer Operation “[IDXi⊗]” stands for [IDXi] (IDXi) ← (IDXi) (no-op) [IDXi+] (IDXi) ← (IDXi) + 2 (i=0,1) [IDXi-] (IDXi) ← (IDXi) - 2 (i=0,1) [IDXi + QXj] (IDXi) ← (IDXi) + (QXj) (i, j =0,1) [IDXi - QXj] (IDXi) ← (IDXi) - (QXj) (i, j =0,1) “[Rwn⊗]” stands for [Rwn] (Rwn) ← (Rwn) (no-op) [Rwn +] (Rwn) ← (Rwn) + 2 (n=0-15) [Rwn-] (Rwn) ← (Rwn) - 2 (n=0-15) [Rwn + QRj] (Rwn) ← (Rwn) + (QRj) (n=0-15; j =0,1) [Rwn - QRj] (Rwn) ← (Rwn) - (QRj) (n=0-15; j =0,1) Table 6 : MAC Registers Referenced as ‘CoReg‘ Registers Description Address in Opcode MSW MAC-Unit Status Word 00000b MAH MAC-Unit Accumulator High 00001b MAS “limited” MAH /signed 00010b MAL MAC-Unit Accumulator Low 00100b MCW MAC-Unit Control Word 00101b MRW MAC-Unit Repeat Word 00110b |
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