MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 400

• 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
FNEG
Operation:
Assembler
Syntax:
Attributes:
Description: Converts the source operand to extended precision (if necessary) and inverts
Operation Table:
5-98
NOTE: If the source operand is a NAN, refer to 1.6.5 Not-A-Numbers for more information.
the sign of the mantissa. Stores the result in the destination floating-point data register.
FNEG will round the result to the precision selected in the floating-point control register.
FSNEG and FDNEG will round the result to single or double precision, respectively,
regardless of the rounding precision selected in the floating-point control register.
DESTINATION
Result
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
FNEG. < fmt > < ea > ,FPn
FNEG.X FPm,FPn
FNEG.X FPn
*FrNEG. < fmt > < ea > ,FPn
*FrNEG.X FPm,FPn
*FrNEG.X FPn
where r is rounding precision, S or D
*Supported by MC68040 only
Format = (Byte, Word, Long, Single, Double, Extended, Packed)
– (Source)
+
Floating-Point Negate
In Range
Negate
(MC6888X, MC68040)
FPn
– +
– 0.0
SOURCE
Zero
+ 0.0 – inf
– +
Infinity
FNEG
MOTOROLA
+ inf
–