2.1.3 Condition Code
The symbols used in the condition-code description are defined as follows.
2.1.4 Instruction Format
The symbols used in the instruction format descriptions are listed below.
Symbol
Meaning
↕
Changes according to the result of the instruction
*
Undetermined (no guaranteed value)
0
Always cleared to 0
–
Not affected by execution of the instruction
∆
Varies depending on conditions; see the notes.
Symbol
Meaning
IMM
Immediate data (2, 3, 8, 16, or 32 bits)
abs
Absolute address (8, 16, or 24 bits)
disp
Displacement (8, 16, or 24 bits)
rs, rd, rn
Register number (4 bits. The symbol rs corresponds to operand symbols such
as Rs. The symbol rd corresponds to operand symbols such as Rd. The symbol
rn corresponds to the operand symbol Rn.)
ers, erd, ern
Register number (3 bits. The symbol ers corresponds to operand symbols such
as ERs. The symbol erd corresponds to operand symbols such as ERd and
@ERd. The symbol ern corresponds to the operand symbol ERn.)
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