MC68EC000EI16 Freescale Semiconductor, MC68EC000EI16 Datasheet - Page 310

• Manufacturer Part Number: MC68EC000EI16
• Description: IC MPU 32BIT 16MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI16

• Processor Type: M680x0 32-Bit
• Speed: 16MHz
• 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
FACOS
Operation:
Assembler
Syntax:
Attributes:
Description: Converts the source operand to extended precision (if necessary) and
Operation Table:
Floating-Point Status Register:
5-8
calculates the arc cosine of that number. Stores the result in the destination floating-
point data register. This function is not defined for source operands outside of the range
[ – 1... + 1]; if the source is not in the correct range, a NAN is returned as the result and
the OPERR bit is set in the floating- point status register. If the source is in the correct
range, the result is in the range of [0... ].
Condition Codes:
Quotient Byte:
Exception Byte:
Accrued Exception Byte:
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
Arc Cosine of Source
FACOS. < fmt >
FACOS.X
FACOS.X
Format = (Byte, Word, Long, Single, Double, Extended, Packed)
+
Arc Cosine
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.
Arc Cosine
FPm,FPn
FPn
< ea > ,FPn
– +
FPn
Cleared
Refer to 1.6.5 Not-A-Numbers .
Set if the source is infinity, > + 1 or < – 1;
cleared otherwise.
Cleared
Cleared
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
+ /2
Zero
– +
Infinity
NAN
FACOS
MOTOROLA
–