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SH7041A Datasheet(PDF) 92 Page - Renesas Technology Corp |
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SH7041A Datasheet(HTML) 92 Page - Renesas Technology Corp |
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92 / 923 page ![]() 54 Table 2.8 Addressing Modes and Effective Addresses (cont) Addressing Mode Instruction Format Effective Addresses Calculation Equation Indirect indexed GBR addressing @(R0, GBR) The effective address is the GBR value plus the R0. GBR R0 GBR + R0 + GBR + R0 PC relative addressing with displacement @(disp:8, PC) The effective address is the PC value plus an 8-bit displacement (disp). The value of disp is zero- extended, and is doubled for a word operation, and quadrupled for a longword operation. For a longword operation, the lowest two bits of the PC value are masked. PC H'FFFFFFFC PC + disp × 2 or PC & H'FFFFFFFC + disp × 4 + 2/4 × & (for longword) disp (zero-extended) Word: PC + disp × 2 Longword: PC & H'FFFFFFFC + disp × 4 |
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