
Instruction Set Reference UM018809-0611
66
ZNEO
®
CPU Core
User Manual
Miscellaneous Abbreviations
Table 20 lists additional symbols used in the instruction set descriptions.
Table 20. Abbreviations Used in Text and Tables
Symbol Definition
dst Destination Operand.
src Source Operand.
Rd Destination Register.
Rs Source Register.
cc Condition Code.
An arrow (indicates assignment of a value. For example,
dst dst + src indicates that sum of the operands is stored in the destination location.
A double arrow () indicates the exchange of two values.
Multiplication sign (arithmetic); repeated operation count.
FLAGS Flags Register.
C Carry Flag.
Z Zero Flag.
S Sign Flag.
V Overflow Flag.
B Blank Flag.
CIRQE Chained Interrupt Enable.
IRQE Master Interrupt Enable.
* Flag bit state depends on result of operation.
– Flag bit state is not affected by operation.
0 Flag bit is cleared to 0.
1 Flag bit is set to 1.
SP Stack Pointer.
PC Program Counter.
FP Frame Pointer.
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