Addf – Texas Instruments TMS320C3x User Manual

Page 509

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Add Floating-Point Values

ADDF

13-51

Assembly Language Instructions

Syntax

ADDF

src, dst

Operation

dst + src

dst

Operands

src general addressing modes (G):

0 0

register (R

n, 0

n

7)

0 1

direct

1 0

indirect (disp = 0–255, IR0, IR1)

1 1

immediate

dst register

(R

n, 0

n

7)

Opcode

src

31

2423

16

8 7

0

15

0 0 0 0 0

1

G

1

dst

0 0

Description

The sum of the

dst and src operands is loaded into the dst register. The dst and

src operands are assumed to be floating-point numbers.

Cycles

1

Status Bits

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

LUF

1 if a floating-point underflow occurs; unchanged otherwise

LV

1 if a floating-point overflow occurs; unchanged otherwise

UF

1 if a floating-point underflow occurs; 0 otherwise

N

1 if a negative result is generated; 0 otherwise

Z

1 if a 0 result is generated; 0 otherwise

V

1 if a floating-point overflow occurs; 0 otherwise

C

Unaffected

OVM

Operation is not affected by OVM bit value.

Mode Bit

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