Texas Instruments TMS320C28x User Manual

MOVU loc16,OVC
6-221
MOVU loc16,OVC Store the Unsigned Overflow Counter
SYNTAX OPTIONS OPCODE OBJMODE RPT CYC
MOVU loc16,OVC 0101 0110 0010 1000
0000 0000 LLLL LLLL
1 − 1
Operands
loc16
Addressing mode (see Chapter 5)
OVC
Overflow counter
Description Store the 6 bits of the overflow counter (OVC) into the lower 6 bits of the
location pointed to by the “loc16” addressing mode and zero the upper 10
bits of the addressed location:
[loc16(15:6)] = 0;
[loc16(5:0)] = OVC;
Flags and
Modes
N
If (loc16 = @AX) and bit 15 of AX is 1, then set N; otherwise clear N.
Z If (loc16 = @AX) and AX is zero, then set Z; otherwise clear Z.
Repeat This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
Example ; Save and restore contents of ACC and OVC bits:
MOVU *SP++,OVC ; Save OVC on stack
MOV *SP++,AL ; Save AL on stack
MOV *SP++,AH ; Save AH on stack
.
.
.
.
MOV AH,*−−SP ; Restore AH from stack
MOV AL,*−−SP ; Restore AL from stack
MOVU OVC,*−−SP ; Restore OVC from stack

Texas Instruments TMS320C28x Specifications

General

Brand	Texas Instruments
Model	TMS320C28x
Category	Processor
Language	English