diff options
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat-macros.h | 38 | ||||
| -rw-r--r-- | fpu/softfloat-specialize.h | 30 | ||||
| -rw-r--r-- | fpu/softfloat.c | 38 |
3 files changed, 50 insertions, 56 deletions
diff --git a/fpu/softfloat-macros.h b/fpu/softfloat-macros.h index 0dcda93f72..ca1d81e75f 100644 --- a/fpu/softfloat-macros.h +++ b/fpu/softfloat-macros.h @@ -4,10 +4,10 @@ * Derived from SoftFloat. */ -/*============================================================================ - +/* +=============================================================================== This C source fragment is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2b. +Arithmetic Package, Release 2a. Written by John R. Hauser. This work was made possible in part by the International Computer Science Institute, located at Suite 600, 1947 Center @@ -16,24 +16,22 @@ National Science Foundation under grant MIP-9311980. The original version of this code was written as part of a project to build a fixed-point vector processor in collaboration with the University of California at Berkeley, overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ +is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ arithmetic/SoftFloat.html'. -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has -been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES -RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS -AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, -COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE -EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE -INSTITUTE (possibly via similar legal notice) AGAINST ALL LOSSES, COSTS, OR -OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort +has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT +TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO +PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY +AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. Derivative works are acceptable, even for commercial purposes, so long as -(1) the source code for the derivative work includes prominent notice that -the work is derivative, and (2) the source code includes prominent notice with -these four paragraphs for those parts of this code that are retained. +(1) they include prominent notice that the work is derivative, and (2) they +include prominent notice akin to these four paragraphs for those parts of +this code that are retained. -=============================================================================*/ +=============================================================================== +*/ /*---------------------------------------------------------------------------- | This macro tests for minimum version of the GNU C compiler. @@ -107,10 +105,10 @@ static inline void shift64RightJamming(uint64_t a, int_fast16_t count, uint64_t | 63 bits of the extra result are all zero if and only if _all_but_the_last_ | bits shifted off were all zero. This extra result is stored in the location | pointed to by `z1Ptr'. The value of `count' can be arbitrarily large. -| (This routine makes more sense if `a0' and `a1' are considered to form -| a fixed-point value with binary point between `a0' and `a1'. This fixed- -| point value is shifted right by the number of bits given in `count', and -| the integer part of the result is returned at the location pointed to by +| (This routine makes more sense if `a0' and `a1' are considered to form a +| fixed-point value with binary point between `a0' and `a1'. This fixed-point +| value is shifted right by the number of bits given in `count', and the +| integer part of the result is returned at the location pointed to by | `z0Ptr'. The fractional part of the result may be slightly corrupted as | described above, and is returned at the location pointed to by `z1Ptr'.) *----------------------------------------------------------------------------*/ diff --git a/fpu/softfloat-specialize.h b/fpu/softfloat-specialize.h index 518f694a68..39335b4d51 100644 --- a/fpu/softfloat-specialize.h +++ b/fpu/softfloat-specialize.h @@ -4,10 +4,10 @@ * Derived from SoftFloat. */ -/*============================================================================ - +/* +=============================================================================== This C source fragment is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2b. +Arithmetic Package, Release 2a. Written by John R. Hauser. This work was made possible in part by the International Computer Science Institute, located at Suite 600, 1947 Center @@ -16,24 +16,22 @@ National Science Foundation under grant MIP-9311980. The original version of this code was written as part of a project to build a fixed-point vector processor in collaboration with the University of California at Berkeley, overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ +is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ arithmetic/SoftFloat.html'. -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has -been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES -RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS -AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, -COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE -EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE -INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR -OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort +has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT +TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO +PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY +AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. Derivative works are acceptable, even for commercial purposes, so long as -(1) the source code for the derivative work includes prominent notice that -the work is derivative, and (2) the source code includes prominent notice with -these four paragraphs for those parts of this code that are retained. +(1) they include prominent notice that the work is derivative, and (2) they +include prominent notice akin to these four paragraphs for those parts of +this code that are retained. -=============================================================================*/ +=============================================================================== +*/ #if defined(TARGET_MIPS) || defined(TARGET_SH4) || defined(TARGET_UNICORE32) #define SNAN_BIT_IS_ONE 1 diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 16b21ebe61..6041dbdc7a 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -4,10 +4,10 @@ * Derived from SoftFloat. */ -/*============================================================================ - -This C source file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic -Package, Release 2b. +/* +=============================================================================== +This C source file is part of the SoftFloat IEC/IEEE Floating-point +Arithmetic Package, Release 2a. Written by John R. Hauser. This work was made possible in part by the International Computer Science Institute, located at Suite 600, 1947 Center @@ -16,24 +16,22 @@ National Science Foundation under grant MIP-9311980. The original version of this code was written as part of a project to build a fixed-point vector processor in collaboration with the University of California at Berkeley, overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ +is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/ arithmetic/SoftFloat.html'. -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has -been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES -RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS -AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, -COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE -EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE -INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR -OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort +has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT +TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO +PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY +AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. Derivative works are acceptable, even for commercial purposes, so long as -(1) the source code for the derivative work includes prominent notice that -the work is derivative, and (2) the source code includes prominent notice with -these four paragraphs for those parts of this code that are retained. +(1) they include prominent notice that the work is derivative, and (2) they +include prominent notice akin to these four paragraphs for those parts of +this code that are retained. -=============================================================================*/ +=============================================================================== +*/ /* softfloat (and in particular the code in softfloat-specialize.h) is * target-dependent and needs the TARGET_* macros. @@ -529,9 +527,9 @@ static inline float64 packFloat64(flag zSign, int_fast16_t zExp, uint64_t zSig) | the inexact exception raised if the abstract input cannot be represented | exactly. However, if the abstract value is too large, the overflow and | inexact exceptions are raised and an infinity or maximal finite value is -| returned. If the abstract value is too small, the input value is rounded -| to a subnormal number, and the underflow and inexact exceptions are raised -| if the abstract input cannot be represented exactly as a subnormal double- +| returned. If the abstract value is too small, the input value is rounded to +| a subnormal number, and the underflow and inexact exceptions are raised if +| the abstract input cannot be represented exactly as a subnormal double- | precision floating-point number. | The input significand `zSig' has its binary point between bits 62 | and 61, which is 10 bits to the left of the usual location. This shifted |