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Sun Microelectronics

218

UltraSPARC User’s Manual

Description:

Four 16-bit or two 32-bit ﬁxed-point values in rs1 and rs2 are compared. The 4-bit

or 2-bit results are stored in the corresponding least signiﬁcant bits of the integer

rd register. Bit zero of rd corresponds to the least signiﬁcant 16-bit or 32-bit graph-

ics compare result.

For FCMPGT, each bit in the result is set if the corresponding value in rs1 is

greater than the value in rs2. Less-than comparisons are made by swapping the

operands.

For FCMPLE, each bit in the result is set if the corresponding value in rs1 is less

than or equal to the value in rs2. Greater-than-or-equal comparisons are made by

swapping the operands.

For FCMPEQ, each bit in the result is set if the corresponding value in rs1 is equal

to the value in rs2.

For FCMPNE, each bit in the result is set if the corresponding value in rs1 is not

equal to the value in rs2.

Traps:

fp_disabled

fcmple32

freg

rs1

freg

rs2

reg

fcmpne16

freg

rs1

freg

rs2

reg

fcmpne32

freg

rs1

freg

rs2

reg

fcmpeq16

freg

rs1

freg

rs2

reg

fcmpeq32

freg

rs1

freg

rs2

reg

Suggested Assembly Language Syntax

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Brand	Sun Microsystems
Model	UltraSPARC-I
Category	Computer Hardware
Language	English

Sun Microsystems UltraSPARC-I User Manual

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Sun Microsystems UltraSPARC-I Specifications