Fujitsu SPARC64 V Manual Do Utilizador

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SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002
C.2
Hardware Characteristics
Please refer to Section C.2 of Commonality.
C.3
Implementation Dependency Categories
Please refer to Section C.3 of Commonality.
C.4
List of Implementation Dependencies
 provides a complete list of how each implementation dependency is 
treated in the 
SPARC64 V
 implementation. 
TABLE C-1 
SPARC64 V Implementation Dependencies  (1 of 11)
Nbr
SPARC64 V Implementation Notes
Page
1
Software emulation of instructions
The operating system emulates all instructions that generate 
illegal_instruction
 or 
unimplemented_FPop
 exceptions.
2
Number of IU registers
SPARC64 V
 supports eight register windows (
NWINDOWS
= 8).
SPARC64 V supports an additional two global register sets (Interrupt 
globals and MMU globals) for a total of 160 integer registers.
3
Incorrect IEEE Std 754-1985 results
See Section B.6, Floating-Point Nonstandard Mode, on page 61 for details.
4–5
Reserved.
6
I/O registers privileged status
This dependency is beyond the scope of this publication. It should be 
defined in each system that uses 
SPARC64 V
.
7
I/O register definitions
This dependency is beyond the scope of this publication. It should be 
defined in each system that uses 
SPARC64 V
.
8
RDASR
/
WRASR
 target registers
See A.50 and A.70 in Commonality for details of implementation-dependent 
RDASR
/
WRASR
 instructions.