mc68ec040v Freescale Semiconductor, Inc, mc68ec040v Datasheet - Page 268

• Manufacturer Part Number: mc68ec040v
• Description: M68040 User Manual
• Manufacturer: Freescale Semiconductor, Inc

9.7 FLOATING-POINT ARITHMETIC EXCEPTIONS
The following eight user floating-point arithmetic exceptions are listed in order of priority.
The MC68040 generates the first seven exceptions in hardware and the eighth only in
software.
INEX1 exception is the condition that exists when a packed decimal operand cannot be
converted exactly to the extended-precision format in the current rounding mode. Since
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• Branch/Set on Unordered (BSUN)
• Signaling Not-A-Number (SNAN)
• Operand Error (OPERR)
• Overflow (OVFL)
• Underflow (UNFL)
• Divide by Zero (DZ)
• Inexact 2 (INEX2)
• Inexact 1 (INEX1)
DENORMALIZED SINGLE PRECISION
FORMAT IN STATE FRAME
FORMAT IN STATE FRAME
DENORMALIZED DOUBLE PRECISION
Figure 9-9. Format of Denormalized Operand in State Frame
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