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2007-08-31 Antony King <antony.king@st.com> 

* libc/stdlib/mprec.h [_DOUBLE_IS_32BITS}: Define IEEE_Arith
        bits and redefine associated dword0 macro (rvalue issue).
        * libc/stdio/vfieeefp.h: Ditto.
        * libc/stdlib/strtod.c: Add checks for _DOUBLE_IS_32BITS
        to prevent setting dword1 which is an rvalue only.
This commit is contained in:
Jeff Johnston 2007-08-31 21:21:27 +00:00
parent 95500c2eff
commit 6ddf8bef40
4 changed files with 25 additions and 13 deletions
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8
newlib/ChangeLog
View File

@ -1,3 +1,11 @@
2007-08-31 Antony King <antony.king@st.com>
* libc/stdlib/mprec.h [_DOUBLE_IS_32BITS}: Define IEEE_Arith
bits and redefine associated dword0 macro (rvalue issue).
* libc/stdio/vfieeefp.h: Ditto.
* libc/stdlib/strtod.c: Add checks for _DOUBLE_IS_32BITS
to prevent setting dword1 which is an rvalue only.
2007-08-28 Hans Kester <hans.kester@ellips.nl>
* configure.host: Added support for x86_64.

4
newlib/libc/stdio/vfieeefp.h
View File

@ -170,9 +170,7 @@ union double_union
#define Exp_mask ((__uint32_t)0x7f800000L)
#define P 24
#define Bias 127
#if 0
#define IEEE_Arith /* it is, but the code doesn't handle IEEE singles yet */
#endif
#define IEEE_Arith
#define Emin (-126)
#define Exp_1 ((__uint32_t)0x3f800000L)
#define Exp_11 ((__uint32_t)0x3f800000L)

14
newlib/libc/stdlib/mprec.h
View File

@ -139,15 +139,7 @@ typedef union { double d; __ULong L[2]; } U;
#define P 24
#define Bias 127
#define NO_HEX_FP /* not supported in this case */
#if 0
#define IEEE_Arith /* it is, but the code doesn't handle IEEE singles yet */
#endif
/* Following is needed due to IEEE_Arith not being set on above. */
#if defined(__v800)
#define n_bigtens 2
#else
#define n_bigtens 5
#endif
#define IEEE_Arith
#define Emin (-126)
#define Exp_1 ((__uint32_t)0x3f800000L)
#define Exp_11 ((__uint32_t)0x3f800000L)
@ -175,7 +167,11 @@ typedef union { double d; __ULong L[2]; } U;
#define word0(x) (x.i[0])
#define word1(x) 0
#ifdef YES_ALIAS
#define dword0(x) ((__ULong *)&x)[0]
#else
#define dword0(x) ((U*)&x)->L[0]
#endif
#define dword1(x) 0
#else

12
newlib/libc/stdlib/strtod.c
View File

@ -386,7 +386,9 @@ _DEFUN (_strtod_r, (ptr, s00, se),
if (!match(&s,"inity"))
++s;
dword0(rv) = 0x7ff00000;
#ifndef _DOUBLE_IS_32BITS
dword1(rv) = 0;
#endif /*!_DOUBLE_IS_32BITS*/
goto ret;
}
break;
@ -398,12 +400,16 @@ _DEFUN (_strtod_r, (ptr, s00, se),
&& hexnan(&s, &fpinan, bits)
== STRTOG_NaNbits) {
dword0(rv) = 0x7ff00000 | bits[1];
#ifndef _DOUBLE_IS_32BITS
dword1(rv) = bits[0];
#endif /*!_DOUBLE_IS_32BITS*/
}
else {
#endif
dword0(rv) = NAN_WORD0;
#ifndef _DOUBLE_IS_32BITS
dword1(rv) = NAN_WORD1;
#endif /*!_DOUBLE_IS_32BITS*/
#ifndef No_Hex_NaN
}
#endif
@ -627,8 +633,8 @@ _DEFUN (_strtod_r, (ptr, s00, se),
#ifndef _DOUBLE_IS_32BITS
else
dword1(rv) &= 0xffffffff << j;
}
#endif /*!_DOUBLE_IS_32BITS*/
}
#else
for(j = 0; e1 > 1; j++, e1 >>= 1)
if (e1 & 1)
@ -1109,7 +1115,9 @@ _DEFUN (_strtod_r, (ptr, s00, se),
if (inexact) {
if (!oldinexact) {
dword0(rv0) = Exp_1 + (70 << Exp_shift);
#ifndef _DOUBLE_IS_32BITS
dword1(rv0) = 0;
#endif /*!_DOUBLE_IS_32BITS*/
dval(rv0) += 1.;
}
}
@ -1119,7 +1127,9 @@ _DEFUN (_strtod_r, (ptr, s00, se),
#ifdef Avoid_Underflow
if (scale) {
dword0(rv0) = Exp_1 - 2*P*Exp_msk1;
#ifndef _DOUBLE_IS_32BITS
dword1(rv0) = 0;
#endif /*!_DOUBLE_IS_32BITS*/
dval(rv) *= dval(rv0);
#ifndef NO_ERRNO
/* try to avoid the bug of testing an 8087 register value */