Or3||sti – Texas Instruments TMS320C3x User Manual

Page 651

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Parallel OR3 and STI

OR3||STI

13-193

Assembly Language Instructions

Status Bits

These condition flags are modified only if the destination register is R7 – R0.

LUF

Unaffected

LV

Unaffected

UF

0

N

MSB of the output

Z

1 if a 0 result is generated; 0 otherwise

V

0

C

Unaffected

OVM

Operation is not affected by OVM bit value.

Example

OR3

*++AR2,R5,R2

||

STI

R6,*AR1

– –

Before Instruction

After Instruction

R2

00 0000 0000

R2

00 0080 9800

R5

00 0080 0000

R5

00 0080 0000

R6

00 0000 00DC

R6

00 0000 00DC

AR1

80 9883

AR1

80 9882

AR2

80 9830

AR2

80 9831

LUF

0

LUF

0

LV

0

LV

0

UF

0

UF

0

N

0

N

0

Z

0

Z

0

V

0

V

0

C

0

C

0

Data memory

809831h

9800

809831h

9800

809883h

0

809883h

0DC

220

220

220

Note:

Cycle Count

See subsection 8.5.2,

Data Loads and Stores, on page 8-24 for the effects

of operand ordering on the cycle count.

Mode Bit

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