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212
CHAPTER 6 INSTRUCTION SET
(4) 8-bit data exchange instruction: XCH
Mnemonic
Operands
Operation Code
B1
B2
B3
B4
B5
B6
B7
XCH
r, r1
0 0 1 0
0 1 0 1
R
7
R
6
R
5
R
4
0 R
2
R
1
R
0
r, r2
0 0 1 1
1 1 0 0
0 0 1 0
0 1 0 1
R
7
R
6
R
5
R
4
0 R
2
R
1
R
0
A, r1
1 1 0 1
1 R
2
R
1
0
A, r2
0 0 1 1
1 1 0 0
1 1 0 1
1 R
2
R
1
R
0
A, saddr2
0 0 1 0
0 0 0 1
←
Saddr2-offset
→
r, saddr2
0 0 1 1
1 0 0 1
R
7
R
6
R
5
R
4
0 0 0 0
←
Saddr2-offset
→
r, saddr1
0 0 1 1
1 0 0 1
R
7
R
6
R
5
R
4
0 0 0 1
←
Saddr1-offset
→
r, sfr
0 0 1 1
1 0 0 1
R
7
R
6
R
5
R
4
0 0 1 0
←
Sfr-offset
→
saddr2, saddr2’
0 0 1 0
--------------------------------------------------------------------------------
1 0 1 0
0 0 0 0
0 1 0 0
←
Saddr2’-offset
→
←
Saddr2-offset
→
saddr2, saddr1
0 0 1 0
--------------------------------------------------------------------------------
1 0 1 0
0 0 0 1
0 1 0 0
←
Saddr1-offset
→
←
Saddr2-offset
→
saddr1, saddr2
0 0 1 0
--------------------------------------------------------------------------------
1 0 1 0
0 0 1 0
0 1 0 0
←
Saddr2-offset
→
←
Saddr1-offset
→
saddr1, saddr1’
0 0 1 0
--------------------------------------------------------------------------------
1 0 1 0
0 0 1 1
0 1 0 0
←
Saddr1’-offset
→
←
Saddr1-offset
→
r, !addr16
0 0 1 1
--------------------------------------------------------------------------------
1 1 1 0
R
R
R
R
0 1 0 0
←
Low Address
→
←
High Address
→
r, !!addr24
0 0 1 1
--------------------------------------------------------------------------------
1 1 1 0
R
R
R
R
0 1 1 0
←
High-w Address
→
←
Low Address
→
←
High Address
→
A, [saddrp2]
0 0 1 0
0 0 1 1
←
Saddr2-offset
→
A, [saddrp1]
0 0 1 1
1 1 0 0
0 0 1 0
0 0 1 1
←
Saddr1-offset
→
A, [%saddrg2]
0 0 0 0
0 1 1 1
0 0 1 1
0 1 0 0
←
Saddr2-offset
→
A, [%saddrg1]
0 0 1 1
--------------------------------------------------------------------------------
1 1 0 0
0 0 0 0
0 1 1 1
0 0 1 1
0 1 0 0
←
Saddr1-offset
→
A, [TDE +]
0 0 0 1
0 1 1 0
0 0 0 0
0 1 0 0
A, [WHL +]
0 0 0 1
0 1 1 0
0 0 0 1
0 1 0 0
A, [TDE –]
0 0 0 1
0 1 1 0
0 0 1 0
0 1 0 0
A, [WHL –]
0 0 0 1
0 1 1 0
0 0 1 1
0 1 0 0
A, [TDE]
0 0 0 1
0 1 1 0
0 1 0 0
0 1 0 0
A, [WHL]
0 0 0 1
0 1 1 0
0 1 0 1
0 1 0 0
A, [VVP]
0 0 0 1
0 1 1 0
0 1 1 0
0 1 0 0
A, [UUP]
0 0 0 1
0 1 1 0
0 1 1 1
0 1 0 0
(Continued on next page)