HD6433682 ETC, HD6433682 Datasheet - Page 66

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

2.5.2
Table 2.12 indicates how effective addresses are calculated in each addressing mode. In this LSI
the upper 8 bits of the effective address are ignored in order to generate a 16-bit effective address.
Table 2.12 Effective Address Calculation (1)
Rev. 3.00, 05/03, page 36 of 472
Register indirect with post-increment or
pre-decrement
•Register indirect with post-increment @ERn+
•Register indirect with pre-decrement @-ERn
Register direct(Rn)
Register indirect(@ERn)
Addressing Mode and Instruction Format
Effective Address Calculation
The value to be added or subtracted is 1 when the
operand is byte size, 2 for word size, and 4 for
longword size.
Sign extension
Effective Address Calculation
General register contents
General register contents
General register contents
General register contents
1, 2, or 4
1, 2, or 4
Operand is general register contents.
Effective Address (EA)