INSTRUCTION DESCRIPTIONS
A - 254 INSTRUCTION SET DETAILS MOTOROLA
Instruction Format:
REP S
Opcode:
Instruction Fields: S
S d d d d d d S/L S d d d d d d
X0 0 0 0 1 0 0 no R0 - R7 0 1 0 n n n
X1 0 0 0 1 0 1 no N0 - N7 0 1 1 n n n
Y0 0 0 0 1 1 0 no M0 - M7 1 0 0 n n n
Y1 0 0 0 1 1 1 no SR 1 1 1 0 0 1
A0 0 0 1 0 0 0 no OMR 1 1 1 0 1 0
B0 0 0 1 0 0 1 no SP 1 1 1 0 1 1
A2 0 0 1 0 1 0 no SSH 1 1 1 1 0 0
B2 0 0 1 0 1 1 no SSL 1 1 1 1 0 1
A1 0 0 1 1 0 0 no LA 1 1 1 1 1 0
B1 0 0 1 1 0 1 no LC 1 1 1 1 1 1
A 0 0 1 1 1 0 yes (See Notes on page A-255)
B 0 0 1 1 1 1 yes (See Notes on page A-255)
where “nnn” = Rn number (R0 - R7)
Nn number (N0 - N7)
Mn number (M0 - M7)
REP Repeat Next Instruction REP
23 16 15 8 7 0
0000011011dddddd00100000