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3–6 Alpha Architecture Handbook
3.2.2.3 Operand Data Type Notation
A letter that denotes the data type of the operand:
3.2.3 Operators
Table 3–7 describes the operators:
r The operand is read only.
m The operand is both read and written.
w The operand is write only.
Table 3–6: Operand Data Type Notation
Data Type Meaning
b Byte
f F_floating
g G_floating
l Longword
q Quadword
s IEEE single floating (S_floating)
t IEEE double floating (T_floating)
wWord
x The data type is specified by the instruction
Table 3–7: Operators
Operator Meaning
! Comment delimiter
+ Addition
- Subtraction
* Signed multiplication
*U Unsigned multiplication
** Exponentiation (left argument raised to right argument)
/ Division
← Replacement
Table 3–5: Operand Access Type Notation (Continued)
Access Type Meaning