Hitachi H8S/2628 Hardware Manual page 78

Table 2.13 Effective Address Calculation (1)
Addressing Mode and Instruction Format
Register direct(Rn)
Register indirect(@ERn)
Register indirect with post-increment or
pre-decrement
•Register indirect with post-increment @ERn+
•Register indirect with pre-decrement @-ERn
Rev. 1.0, 09/02, page 42 of 568
Effective Address Calculation
General register contents
General register contents
Sign extension
General register contents
1, 2, or 4
General register contents
1, 2, or 4
Operand Size
Byte
Word
Longword
Effective Address (EA)
Operand is general register contents.