Motorola MC6805R Series Advance Information page 70

Table 10-7. M6805 HMOS Family Instruction Set Opcode Map
Bit Manipulation
Branch Read/ Modify/Write
BTB BSC REL DIR A X IXl IX
~
0 1 2
3
4 5 6 7
Low
I
(XXX) 0001 0010 0011 0100 0101
0"0 0"1
10 5 7
5
4
3 6
5 4 3 4 3 7 6 6 3
0 BRSETO BSETO BRA NEG NEG NEG NEG NEG
(XXX) 3 BTB 2 BSC 2 REL 2 DIR I
A I
X 2
IXI I IX
10 5 7 5 4 3
1 BRCLRO BCLRO BRN
0001 3 BTB 2 BSC 2 REL
10 5 7 5 4 3
2 BRSETl BSETl
BHI
0010
3 BTB 2 BSC 2 REL
10 5
7
5 4 3 6 5 4 3 4 3 7 6 6 5
3
BRCLRl BCLRl BLS COM COM COM COM COM
0011 3
BTB 2 BSC 2
REL 2
DIR I A I X 2 IXI I IX
10 5 7
5
4 3 6
5
4 3 4 3 7 6 6 5
4
BRSET2 BSET2 BCC LSR LSR
LSR LSR LSR
0100
3 BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I IX
10 5
7
5 4 3
5 BRCLR2 BCLR2 BCS
0101
3
BTB 2 BSC 2 REL
10
5 7
5 4 3 6 5 4 3 4 3 7 6 6 5
6 BRSET3 BSET3 BNE ROR ROR ROR ROR ROR
0"0
3 BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I IX
10
5 7 5 4
3 6
5 4 3 4 3 7 6 6
5
7 BRCLR3 BCLR3 BEQ ASR ASR ASR ASR ASR
0"1
3 BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I
IX
10
5 7 5 4
3 6 5 4 3 4 3 7 6 6 5
S BRSET4 BSET4 BHCC LSL LSL LSL LSL LSL
1000
3 BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I IX
10
5 7 5 4
3 6
5 4 3 4 3 7 6 6 5
9 BRCLR4 BCLR4 BHCS ROL ROL ROL ROL ROL
1001 3
BTB 2
BSC 2 REL 2
DIR I A I
X 2
IXI I IX
10 5 7 5 4 3 6 5 4 3 4 3 7 6 6 5
A BRSET5 BSET5 BPL DEC DEC DEC DEC
DEC
1010 3 BTB 2 BSC 2 REL 2
DIR I A \
X 2
IXI I IX
10 5 7 5 4 3
B BRCLR5 BCLR5
BMI
lOll 3 BTB 2 BSC 2 REL
10 5 7
5 4
3 6 5 4 3 4 3 7 6 6 5
C
BRSET6
BSET6
BMC INC INC INC INC INC
1100
~ BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I IX
10
5 7
5 4 3 6 4 4 3 4 3 7 5 6 4
D BACLR6 BCLR6 BMS TST TST TST TST TST
1101 3
BTB
2
BSC 2
REL 2
DIR I A I
X 2
IXI I IX
10
7 7 5 4
3
E
BASET7
BSET7
BIL
1110 3 BTB 2 BSC 2 RE~
10
7 7 5 4
3 6
5 4
3 4 3 7 6 6 5
F BRCLR7 BCLR7 BIH CLR CLR CLR CLR CLR
II"
P
BTB 2 BSC 2 REL 2 DIR I A I X 2 IXI I IX
Abbreviations for Address Modes
INH Inherent EXT
Extended
IX
Indexed (No Offset)
A
Accumulator REL Relative IXl Indexed, 1 Byte (S-Bitl Offset
X Index Register BSC Bit Set/Clear IX2
Indexed,2 Byte (16-Bitl Offset
IMM Immediate BTB Bit Test and Branch
*
Ml46805 CMOS Family Only
DIR Direct
10-10