ADDRESSING MODES

The address register indirect addressing modes require that the offset register number be the same as the address register number. The assembler syntax “N” may be used instead of “Nn” in the address register indirect memory addressing modes. If “N” is spec- ified, the offset register number is the same as the address register number.

A.4.1 Addressing Mode Modifiers

The addressing mode selected in the instruction word is further specified by the contents of the address modifier register Mn. The addressing mode update modifiers (M0–M7) are shown in Table A-4. There are no restrictions on the use of modifier types with any address register indirect addressing mode.

MOTOROLA

INSTRUCTION SET DETAILS

A - 13

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Motorola DSP56000, 24-Bit Digital Signal Processor manual Addressing Mode Modifiers