Texas Instruments TMS320C67X/C67X+ DSP manual Und

Control Register File Extensions

Table 2−15. Floating-Point Auxiliary Configuration Register (FAUCR) Field Descriptions (Continued)

Bit	Field	Value	Description
25	UNORD		Source to a compare operation for .S2
		0	NaN is not a source to a compare operation.
		1	NaN is a source to a compare operation.
24	UND		Result underflow status for .S2.
		0	Result does not underflow.
		1	Result underflows.
23	INEX		Inexact results status for .S2.
		0
		1	Result differs from what would have been computed had the exponent range
			and precision been unbounded; never set with INVAL.
22	OVER		Result overflow status for .S2.
		0	Result does not overflow.
		1	Result overflows.
21	INFO		Signed infinity for .S2.
		0	Result is not signed infinity.
		1	Result is signed infinity.
20	INVAL

0A signed NaN (SNaN) is not a source.

1A signed NaN (SNaN) is a source. NaN is a source in a floating-point to integer conversion or when infinity is subtracted from infinity.

19 DEN2 Denormalized number select for .S2 src2.

0src2 is not a denormalized number.

1src2 is a denormalized number.

18 DEN1 Denormalized number select for .S2 src1.

0src1 is not a denormalized number.

1src1 is a denormalized number.

2-28 CPU Data Paths and Control SPRU733