Float – Texas Instruments TMS320C3x User Manual

Page 561

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Integer-to-Floating-Point Conversion

FLOAT

13-103

Assembly Language Instructions

Syntax

FLOAT

src, dst

Operation

float

(src)

dst

Operands

src general addressing modes (G):

0 0

register (R

n, 0

n

27)

0 1

direct

1 0

indirect (disp = 0–255, IR0, IR1)

1 1

immediate

dst register (Rn, 0

n

7)

Opcode

31

24 23

16

8 7

0

15

0 0 0 0 0

1

src

0

dst

G

1

1

Description

The integer operand

src is converted to the floating-point value equal to it; the

result is loaded into the

dst register. The src operand is assumed to be a signed

integer; the

dst operand is assumed to be a floating-point number.

Cycles

1

Status Bits

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

LUF

Unaffected

LV

Unaffected

UF

0

N

1 if a negative result is generated; 0 otherwise

Z

1 if a 0 result is generated; 0 otherwise

V

0

C

Unaffected

OVM

Operation is not affected by OVM bit value.

Mode Bit

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