APPENDIX B INSTRUCTION SET LIST
User’s Manual U13850EJ4V0UM
502
Table B-2. Symbols Used for Op Code
Symbol
Description
R
1-bit data of code that specifies reg1 or regID
r
1-bit data of code that specifies reg2
d
1-bit data of displacement
i
1-bit data of immediate data
cccc
4-bit data that indicates condition code
bbb
3-bit data that specifies bit number
Table B-3. Symbols Used for Operation Description
Symbol
Description
←
Assignment
GR[ ]
Genera-purpose register
SR[ ]
System register
zero-extend (n)
Zero-extends n to word length.
sign-extend (n)
Sign-extends n to word length.
load-memory (a,b)
Reads data of size b from address a.
store-memory (a,b,c)
Writes data b of size c to address a.
load-memory-bit (a,b)
Reads bit b from address a.
store-memory-bit (a,b,c)
Writes c to bit b of address a
saturated (n)
Performs saturated processing of n. (n is 2’s complements).
Result of calculation of n:
If n is n
≥
7FFFFFFFH as result of calculation, 7FFFFFFFH.
If n is n
≤
80000000H as result of calculation, 80000000H.
result
Reflects result to a flag.
Byte
Byte (8 bits)
Halfword
Half-word (16 bits)
Word
Word (32 bits)
+
Add
−
Subtract
||
Bit concatenation
×
Multiply
÷
Divide
AND
Logical product
OR
Logical sum
XOR
Exclusive logical sum
NOT
Logical negate
logically shift left by
Logical left shift
logically shift right by
Logical right shift
arithmetically shift right by
Arithmetic right shift
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