HD643303x Hitachi, HD643303x Datasheet - Page 46
HD643303x
Manufacturer Part Number
HD643303x
Description
Hitachi Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD643303X.pdf
(572 pages)
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Table 2-4 Arithmetic Operation Instructions (cont)
Instruction Size*
DIVXU
DIVXS
CMP
NEG
EXTS
EXTU
Note: * Size refers to the operand size.
B: Byte
W: Word
L: Longword
B/W
B/W
B/W/L
B/W/L
W/L
W/L
Function
Rd ÷ Rs
Performs unsigned division on data in two general registers: either
16 bits ÷ 8 bits
16-bit quotient and 16-bit remainder.
Rd ÷ Rs
Performs signed division on data in two general registers: either
16 bits ÷ 8 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 according to the result.
0 – Rd
Takes the two’s complement (arithmetic complement) of data in a general
register.
Rd (sign extension)
Extends byte data in the lower 8 bits of a 16-bit register to word data, or
extends word data in the lower 16 bits of a 32-bit register to longword data,
by extending the sign bit.
Rd (zero extension)
Extends byte data in the lower 8 bits of a 16-bit register to word data, or
extends word data in the lower 16 bits of a 32-bit register to longword data,
by padding with zeros.
Rd
Rd
Rd
8-bit quotient and 8-bit remainder or 32 bits ÷ 16 bits
8-bit quotient and 8-bit remainder, or 32 bits ÷ 16 bits
Rd
Rd
31
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