INSTRUCTION DESCRIPTIONS
A - 46 INSTRUCTION SET DETAILS MOTOROLA
Instruction Format:
BCHG #n,D
Opcode:
Instruction Fields:
#n=bit number=bbbbb,
D=destination register=DDDDDD
xxxx=16-bit Absolute Address in extension word
Destination Register D D D D D D Bit Number bbbbb
4 registers in Data ALU 0 0 0 1 D D 00000
8 accumulators in Data ALU 0 0 1 D D D •
8 address registers in AGU 0 1 0 T T T 10111
8 address offset registers in AGU 0 1 1 N N N
8 address modifier registers in AGU 1 0 0 F F F
8 program controller registers 1 1 1 G G G
See Section A.10 and Table A-18 for specific register encodings.
BCHG Bit Test and Change BCHG
23 16 15 8 7 0
0000101111DDDDDD01 0bbbbb