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H8SX1663 数据表(PDF) 107 Page - Renesas Technology Corp |
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H8SX1663 数据表(HTML) 107 Page - Renesas Technology Corp |
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107 / 1158 page ![]() Section 2 CPU Rev.1.00 Jun. 07, 2006 Page 55 of 1102 REJ09B0294-0100 2.8 Addressing Modes and Effective Address Calculation The H8SX CPU supports the 11 addressing modes listed in table 2.12. Each instruction uses a subset of these addressing modes. Bit manipulation instructions use register direct, register indirect, or absolute addressing mode to specify an operand, and register direct (BSET, BCLR, BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit number in the operand. Table 2.12 Addressing Modes No. Addressing Mode Symbol 1 Register direct Rn 2 Register indirect @ERn 3 Register indirect with displacement @(d:2,ERn)/@(d:16,ERn)/@(d:32,ERn) 4 Index register indirect with displacement @(d:16, RnL.B)/@(d:16,Rn.W)/@(d:16,ERn.L) @(d:32, RnL.B)/@(d:32,Rn.W)/@(d:32,ERn.L) 5 Register indirect with post-increment @ERn + Register indirect with pre-decrement @ −ERn Register indirect with pre-increment @ +ERn Register indirect with post-decrement @ERn − 6 Absolute address @aa:8/@aa:16/@aa:24/@aa:32 7 Immediate #xx:3/#xx:4/#xx:8/#xx:16/#xx:32 8 Program-counter relative @(d:8,PC)/@(d:16,PC) 9 Program-counter relative with index register @(RnL.B,PC)/@(Rn.W,PC)/@(ERn.L,PC) 10 Memory indirect @@aa:8 11 Extended memory indirect @@vec:7 2.8.1 Register Direct—Rn The operand value is the contents of an 8-, 16-, or 32-bit general register which is specified by the register field in the instruction code. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7 can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers. |
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