h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 75
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 75 of 1165
- Download datasheet (6Mb)
Type
Arithmetic
operations
Instruction
DIVXS
CMP
NEG
EXTU
EXTS
TAS
MAC
CLRMAC
LDMAC
STMAC
Size *
B/W
B/W/L
B/W/L
W/L
W/L
B
—
—
L
1
0 – Rd → Rd
Function
Rd ÷ Rs → Rd
Performs signed division on data in two general
registers: either 16 bits ÷ 8 bits → 8-bit quotient and 8-bit
remainder or 32 bits ÷ 16 bits → 16-bit quotient and 16-
bit remainder.
Rd – Rs, Rd – #IMM
Compares data in a general register with data in another
general register or with immediate data, and sets CCR
bits according to the result.
Takes the two's complement (arithmetic complement) of
data in a general register.
Rd (zero extension) → Rd
Extends the lower 8 bits of a 16-bit register to word size,
or the lower 16 bits of a 32-bit register to longword size,
by padding with zeros on the left.
Rd (sign extension) → Rd
Extends the lower 8 bits of a 16-bit register to word size,
or the lower 16 bits of a 32-bit register to longword size,
by extending the sign bit.
@ERd – 0, 1 → (<bit 7> of @ERd) *
Tests memory contents, and sets the most significant bit
(bit 7) to 1.
(EAs) × (EAd) + MAC → MAC
Performs signed multiplication on memory contents and
adds the result to the multiply-accumulate register. The
following operations can be performed:
16 bits × 16 bits + 32 bits → 32 bits, saturating
16 bits × 16 bits + 42 bits → 42 bits, non-saturating
0 → MAC
Clears the multiply-accumulate register to zero.
Rs → MAC, MAC → Rd
Transfers data between a general register and a
multiply-accumulate register.
Rev. 5.00 Sep 22, 2005 page 49 of 1136
2
REJ09B0257-0500
Section 2 CPU
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