Data Organization and Addressing Capabilities
MOTOROLA MC68030 USER’S MANUAL 2-21
2.4.18 Immediate Data
In this addressing mode, the operand is in one or two extension words:
Byte Operation
Operand is in the low-order byte of the extension word
Word Operation
Operand is in the extension word
Long-Word Operation
The high-order 16 bits of the operand are in the first extension word; the low-order 16
bits are in the second extension word.
Coprocessor instructions can support immediate data of any size. The instruction word is
followed by as many extension words as are required.
Generation: Operand given
Assembler Syntax: #xxx
Mode Field: 111
Register Field: 100
Number of Extension Words: 1 or 2, except for coprocessor instructions
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