MC68030 Datasheet, PDF (59/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Data Organization and Addressing Capabilities
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:
Assembler Syntax:
Mode Field:
Register Field:
Number of Extension Words:
Operand given
#xxx
111
100
1 or 2, except for coprocessor instructions
MOTOROLA
MC68030 USER’S MANUAL
2-21