Rev. 1.00, 05/04, page 44 of 544
2.7.9 Effective
Address
Calculation
Table 2.13 indicates how effective addresses are calculated in each addressing mode. In normal
mode, the upper 8 bits of the effective address are ignored in order to generate a 16-bit address.
Table 2.13 Effective Address Calculation (1)
No
1
Offset
1
2
4
r
op
31
0
31
23
2
3
Register indirect with displacement
@(d:16,ERn) or @(d:32,ERn)
4
r
op
disp
r
op
rm
op
rn
31
0
31
0
r
op
Don't care
31
23
31
0
Don't care
31
0
disp
31
0
31
0
31
23
31
0
Don't care
31
23
31
0
Don't care
24
24
24
24
Addressing Mode and Instruction Format
Effective Address Calculation
Effective Address (EA)
Register direct (Rn)
General register contents
General register contents
General register contents
General register contents
Sign extension
Register indirect (@ERn)
Register indirect with post-increment or
pre-decrement
• Register indirect with post-increment @ERn+
• Register indirect with pre-decrement @-ERn
1, 2, or 4
1, 2, or 4
Operand Size
Byte
Word
Longword
Operand is general register contents.
Summary of Contents for H8S/2111B
Page 2: ...Rev 1 00 05 04 page ii of xxxiv...
Page 8: ...Rev 1 00 05 04 page viii of xxxiv...
Page 22: ...Rev 1 00 05 04 page xxii of xxxiv...
Page 30: ...Rev 1 00 05 04 page xxx of xxxiv...
Page 84: ...Rev 1 00 05 04 page 50 of 544...
Page 100: ...Rev 1 00 05 04 page 66 of 544...
Page 126: ...Rev 1 00 05 04 page 92 of 544...
Page 180: ...Rev 1 00 05 04 page 146 of 544...
Page 216: ...Rev 1 00 05 04 page 182 of 544...
Page 254: ...Rev 1 00 05 04 page 220 of 544...
Page 268: ...Rev 1 00 05 04 page 234 of 544...
Page 382: ...Rev 1 00 05 04 page 348 of 544...
Page 462: ...Rev 1 00 05 04 page 428 of 544...
Page 464: ...Rev 1 00 05 04 page 430 of 544...
Page 488: ...Rev 1 00 05 04 page 454 of 544...
Page 496: ...Rev 1 00 05 04 page 462 of 544...
Page 574: ...Rev 1 00 05 04 page 540 of 544...
Page 581: ......
Page 582: ...H8S 2111B Hardware Manual...