Addressing Mode Modifiers - Motorola DSP56000 Manual

24-bit digital signal processor
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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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