Typewriter User Manual

5- 14 MC68340 USER’S MANUAL MOTOROLA
(...) Contents of a referenced location
Example: (Rn) refers to the contents of Rn
CCR Condition code register (lower byte of SR)
X—extend bit
N—negative bit
Z—zero bit
V—overflow bit
C—carry bit
PC Program counter
SP Active stack pointer
SR Status register
SSP Supervisor stack pointer
USP User stack pointer
FC Function code
DFC Destination function code register
SFC Source function code register
+ Arithmetic addition or postincrement
– Arithmetic subtraction or predecrement
/ Arithmetic division or conjunction symbol
× Arithmetic multiplication
= Equal to
≠ Not equal to
> Greater than
≥ Greater than or equal to
< Less than
≤ Less than or equal to
Λ Logical AND
V Logical OR
⊕ Logical exclusive OR
~ Invert; operand is logically complemented
BCD Binary-coded decimal, indicated by subscript
Example: Source
10
is a BCD source operand.
LSW Least significant word
MSW Most significant word
{R/W} Read/write indicator
In a description of an operation, a destination operand is placed to the right of source
operands and is indicated by an arrow (⇒).
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cale Semiconductor,
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