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SH7047 Datasheet(PDF) 65 Page - Renesas Technology Corp |
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SH7047 Datasheet(HTML) 65 Page - Renesas Technology Corp |
65 / 764 page Rev. 2.00, 09/04, page 25 of 720 Addressing Mode Instruction Format Effective Address Calculation Equation Indirect PC addressing with displacement @(disp:8, PC) The effective address is the sum of PC value and 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 disp:8 The effective address is the sum of PC value and the value that is obtained by doubling the sign- extended 8-bit displacement (disp). PC 2 + × disp (sign-extended) PC + disp × 2 PC + disp × 2 PC relative addressing disp:12 The effective address is the sum of PC value and the value that is obtained by doubling the sign- extended 12-bit displacement (disp). PC 2 + × disp (sign-extended) PC + disp × 2 PC + disp × 2 |
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