Datasheet

117
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
Condition Flags
If S is specified, these instructions:
 Update the N and Z flags according to the result
 Can update the C flag during the calculation of Operand2, see “Flexible Second Operand”
 Do not affect the V flag.
Examples
MOVS R11, #0x000B ; Write value of 0x000B to
R11, flags get updated
MOV R1, #0xFA05 ; Write value of 0xFA05 to
R1, flags are not updated
MOVS R10, R12 ; Write value in R12 to R10,
flags get updated
MOV R3, #23 ; Write value of 23 to R3
MOV R8, SP ; Write value of stack pointer to R8
MVNS R2, #0xF ; Write value of 0xFFFFFFF0 (bitwise inverse of 0xF)
; to the R2 and update flags.
12.6.5.7 MOVT
Move Top.
Syntax
MOVT{cond} Rd, #imm16
where:
cond is an optional condition code, see “Conditional Execution” .
Rd is the destination register.
imm16 is a 16-bit immediate constant.
Operation
MOVT writes a 16-bit immediate value, imm16, to the top halfword, Rd[31:16], of its destination register. The write
does not affect Rd[15:0].
The MOV, MOVT instruction pair enables to generate any 32-bit constant.
Restrictions
Rd must not be SP and must not be PC.
Condition Flags
This instruction does not change the flags.
Examples
MOVT R3, #0xF123 ; Write 0xF123 to upper halfword of R3, lower halfword
; and APSR are unchanged.