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Added bswap feature.

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This commit is contained in:
Joel Sherrill
1998-08-13 18:17:49 +00:00
parent f6f0b30a28
commit 3e6d74967d
2 changed files with 30 additions and 4 deletions
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17
doc/supplements/i386/cpumodel.t
View File

@@ -14,6 +14,7 @@
@menu
* CPU Model Dependent Features Introduction::
* CPU Model Dependent Features CPU Model Name::
* CPU Model Dependent Features bswap Instruction::
* CPU Model Dependent Features Floating Point Unit::
@end menu
@end ifinfo
@@ -63,7 +64,7 @@ c/src/exec/score/cpu/i386/i386.h based upon the particular CPU
model defined on the compilation command line.
@ifinfo
@node CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features Floating Point Unit, CPU Model Dependent Features Introduction, CPU Model Dependent Features
@node CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features bswap Instruction, CPU Model Dependent Features Introduction, CPU Model Dependent Features
@end ifinfo
@section CPU Model Name
@@ -72,7 +73,19 @@ the name of this CPU model. For example, for the Intel i386 without an
i387 coprocessor, this macro is set to the string "i386 with i387".
@ifinfo
@node CPU Model Dependent Features Floating Point Unit, Calling Conventions, CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features
@node CPU Model Dependent Features bswap Instruction, CPU Model Dependent Features Floating Point Unit, CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features
@end ifinfo
@section bswap Instruction
The macro I386_HAS_BSWAP is set to 1 to indicate that
this CPU model has the @code{bswap} instruction which
endian swaps a thirty-two bit quantity. This instruction
appears to be present in all CPU models
i486's and above.
@ifinfo
@node CPU Model Dependent Features Floating Point Unit, Calling Conventions, CPU Model Dependent Features bswap Instruction , CPU Model Dependent Features
@end ifinfo
@section Floating Point Unit

17
doc/supplements/i386/cpumodel.texi
View File

@@ -14,6 +14,7 @@
@menu
* CPU Model Dependent Features Introduction::
* CPU Model Dependent Features CPU Model Name::
* CPU Model Dependent Features bswap Instruction::
* CPU Model Dependent Features Floating Point Unit::
@end menu
@end ifinfo
@@ -63,7 +64,7 @@ c/src/exec/score/cpu/i386/i386.h based upon the particular CPU
model defined on the compilation command line.
@ifinfo
@node CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features Floating Point Unit, CPU Model Dependent Features Introduction, CPU Model Dependent Features
@node CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features bswap Instruction, CPU Model Dependent Features Introduction, CPU Model Dependent Features
@end ifinfo
@section CPU Model Name
@@ -72,7 +73,19 @@ the name of this CPU model. For example, for the Intel i386 without an
i387 coprocessor, this macro is set to the string "i386 with i387".
@ifinfo
@node CPU Model Dependent Features Floating Point Unit, Calling Conventions, CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features
@node CPU Model Dependent Features bswap Instruction, CPU Model Dependent Features Floating Point Unit, CPU Model Dependent Features CPU Model Name, CPU Model Dependent Features
@end ifinfo
@section bswap Instruction
The macro I386_HAS_BSWAP is set to 1 to indicate that
this CPU model has the @code{bswap} instruction which
endian swaps a thirty-two bit quantity. This instruction
appears to be present in all CPU models
i486's and above.
@ifinfo
@node CPU Model Dependent Features Floating Point Unit, Calling Conventions, CPU Model Dependent Features bswap Instruction , CPU Model Dependent Features
@end ifinfo
@section Floating Point Unit