NOTATION
MOTOROLA
INSTRUCTION SET DETAILS A - 9
aio Time Required to Access an I/O Operand
ap Time Required to Access a P Memory Operand
ax Time Required to Access an X Memory Operand
ay Time Required to Access a Y Memory Operand
axy Time Required to Access XY Memory Operands
ea Time or Number of Words Required for an Effective Address
jx Time Required to Execute Part of a Jump-Type Instruction
mv Time or Number of Words Required for a Move-Type Operation
mvb Time Required to Execute Part of a Bit Manipulation Instruction
mvc Time Required to Execute Part of a MOVEC Instruction
mvm Time Required to Execute Part of a MOVEM Instruction
mvp Time Required to Execute Part of a MOVEP Instruction
rx Time Required to Execute Part of an RTI or RTS Instruction
wio Number of Wait States Used in Accessing External I/O
wp Number of Wait States Used in Accessing External P Memory
wx Number of Wait States Used in Accessing External X Memory
wy Number of Wait States Used in Accessing External Y Memory
Instruction Timing Symbols
( ) Optional Letter, Operand, or Operation
(…) Any Arithmetic or Logical Instruction Which Allows Parallel Moves
EXT Extension Register Portion of an Accumulator (A2 or B2)
LS Least Significant
LSP Least Significant Portion of an Accumulator (A0 or B0)
MS Most Significant
MSP Most Significant Portion of a n Accumulator (A1 or B1)
r Rounding constant
S/L Shifting and/or Limiting on a Data ALU Register
Sign Ext Sign Extension of a Data ALU Register
Zero Zeroing of a Data ALU Register
Other Symbols
Table A-1 Instruction Description Notation (Continued)