MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 430

• Manufacturer Part Number: MC68EC000EI20
• Description: IC MPU 32BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Floating Point Instructions
FSQRT
Operation:
Assembler
Syntax:
Attributes:
Description: Converts the source operand to extended precision (if necessary) and
5-128
calculates the square root of that number. Stores the result in the destination floating-
point data register. This function is not defined for negative operands.
FSQRT will round the result to the precision selected in the floating-point control reg-
ister. FSFSQRT and FDFSQRT will round the result to single or double precision,
respectively, regardless of the rounding precision selected in the floating-point control
register.Operation Table:
NOTES:
1. If the source operand is a NAN, refer to 1.6.5 Not-A-Numbers for more information.
2. Sets the OPERR bit in the floating-point status register exception byte.
DESTINATION
Result
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Square Root of Source
FSQRT. < fmt > < ea > ,FPn
FSQRT.X FPm,FPn
FSQRT.X FPn
*FrSQRT. < fmt > < ea > ,FPn
*FrSQRT FPm,FPn
*FrSQRT FPn
where r is rounding precision, S or D
Format = (Byte, Word, Long, Single, Double, Extended, Packed)
*Supported by MC68040 only
+
x
Floating-Point Square Root
In Range
(MC6888X, MC68040)
NAN
– +
2
+ 0.0
FPn
SOURCE
Zero
1
– 0.0 + inf
– +
Infinity
FSQRT
MOTOROLA
NAN
–
2