HD6417021 Hitachi Semiconductor, HD6417021 Datasheet - Page 53

• Manufacturer Part Number: HD6417021
• Description: SuperH RISC engine
• Manufacturer: Hitachi Semiconductor

Table 2.13 Arithmetic Instructions (cont)
Instruction
EXTS.W
EXTU.B
EXTU.W
MAC.W
MULS
MULU
NEG
NEGC
SUB
SUBC
SUBV
Note: The normal minimum number of execution cycles (The number in parenthesis in the
34 HITACHI
number of cycles when there is contension with preceding/following instructions).
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
Rm,Rn
@Rm+,@Rn+
Instruction Code
0110nnnnmmmm1111
0110nnnnmmmm1100
0110nnnnmmmm1101
0100nnnnmmmm1111
0010nnnnmmmm1111
0010nnnnmmmm1110
0110nnnnmmmm1011
0110nnnnmmmm1010
0011nnnnmmmm1000
0011nnnnmmmm1010
0011nnnnmmmm1011
Operation
A word in Rm is sign-
extended
A byte in Rm is zero-
extended
A word in Rm is zero-
extended
Signed operation of
(Rn) (Rm) + MAC
Signed operation of
Rn
Unsigned operation
of Rn
0–Rm
0–Rm–T
Borrow
Rn–Rm
Rn–Rm–T
Borrow
Rn–Rm
Underflow
MAC
Rm
Rm
Rn
T
T
Rn
Rn,
MAC
Rn,
Rn
Rn
Rn
Rn,
T
MAC
Execution
Cycles
1
1
1
3/(2)*
1–3*
1–3*
1
1
1
1
1
T bit
—
—
—
—
—
—
—
Borrow
—
Borrow
Underflow