MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 345

• 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: -

FETOXM1
Operation:
Assembler
Syntax:
Attributes:
Description: Converts the source operand to extended precision (if necessary) and
Operation Table:
Floating-Point Status Register:
MOTOROLA
NOTE: If the source operand is a NAN, refer to 1.6.5 Not-A-Numbers for more information.
calculates e to the power of that number. Subtracts one from the value and stores the
result in the destination floating-point data register.
Condition Codes:
Quotient Byte:
Exception Byte:
Accrued Exception Byte:
DESTINATION
Result
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
e
FETOXM1. < fmt > < ea > ,FPn
FETOXM1.X FPm,FPn
FETOXM1.X FPn
Format = (Byte, Word, Long, Single, Double, Extended, Packed)
Source
+
– 1
In Range
(MC6888X, M68040FPSP)
Affected as described in 3.6.2 Conditional Testing.
Not affected.
BSUN
SNAN
OPERR
OVFL
UNFL
DZ
INEX2
INEX1
Affected as described in IEEE exception and trap compati-
bility in the appropriate user’s manual.
e
x
FPn
– 1
e
x
– +
– 1
+ 0.0
Cleared
Refer to 1.6.5 Not-A-Numbers.
Cleared
Refer to overflow in the appropriate user’s
manual.
Refer to underflow in the appropriate user’s
manual.
Cleared
Refer to inexact result in the appropriate
user’s manual.
If < fmt > is packed, refer to inexact result on
decimal input in the appropriate user’s
manual; cleared otherwise.
SOURCE
Zero
– 0.0 + inf
– +
Floating Point Instructions
FETOXM1
Infinity
– 1.0
–
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