Freescale Semiconductor SC140 specifications Bitwise and Dalu, #0u16,Da,Dn, #u16$0000,Da,Dn

Models: SC140

1 760
Download 760 pages 48.94 Kb
Page 354
Image 354

AND

AND

Bitwise AND (DALU)

Operation

Assembler Syntax

AND

#0u16 • Da → Dn

AND #0{u16},Da,Dn {0 u16

< 216}

#u16$0000 • Da → Dn

AND

#{u16}$0000,Da,Dn {0

u16 < 216}

Da • Dn → Dn

AND

Da,Dn

 

Description

These operations perform a "logical and" between the two source operands, and store the result in the destination operand.

AND #0{u16},Da,Dn

The immediate unsigned word is zero-extended in bits [40:16] to form a 40-bit immediate operand. This operand is then ANDed with the contents of a source data register (Da), and the result stored in a destination data register (Dn). The HP and extension (bits [40:16]) of the destination register are cleared as a result of this instruction.

The { } are not part of the assembler syntax, they are used here for clarity. For example, given an immediate value of $27A6, using D0 as the source data register, and using D1 as the destination data register, this instruction would be written as:

and #$027a6,d0,d1

AND #{u16}$0000,Da,Dn

A 40-bit operand is formed with zeros in bits [15:0], the immediate word in bits [31:16], and bit 31 copied to bits [39:32] (sign-extended). This operand is then ANDed with the contents of a source data register (Da), and the result stored in a destination data register (Dn). The LP of the destination register is cleared as a result of this instruction.

The { } are not part of the assembler syntax, they are used here for clarity. For example, given an immediate value of $27A6, using D0 as the source data register, and using D1 as the destination data register, this instruction would be written as:

and #$27a60000,d0,d1

AND Da,Dn

Performs a bitwise AND on the contents of two source data registers (Da, Dn) and stores the result in the destination (second) data register (Dn).

Status and Conditions that Affect Instruction

None.

A-40

SC140 DSP Core Reference Manual

Page 354
Image 354
Freescale Semiconductor SC140 specifications Bitwise and Dalu, #0u16,Da,Dn, #u16$0000,Da,Dn