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-rw-r--r--arch/mips/math-emu/ieee754int.h201
1 files changed, 89 insertions, 112 deletions
diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h
index 4b6c6fb35304..f0365bb86747 100644
--- a/arch/mips/math-emu/ieee754int.h
+++ b/arch/mips/math-emu/ieee754int.h
@@ -6,8 +6,6 @@
* MIPS floating point support
* Copyright (C) 1994-2000 Algorithmics Ltd.
*
- * ########################################################################
- *
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
@@ -19,146 +17,125 @@
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-
+#ifndef __IEEE754INT_H
+#define __IEEE754INT_H
#include "ieee754.h"
-#define DP_EBIAS 1023
-#define DP_EMIN (-1022)
-#define DP_EMAX 1023
-#define DP_MBITS 52
-
-#define SP_EBIAS 127
-#define SP_EMIN (-126)
-#define SP_EMAX 127
-#define SP_MBITS 23
-
-#define DP_MBIT(x) ((u64)1 << (x))
-#define DP_HIDDEN_BIT DP_MBIT(DP_MBITS)
-#define DP_SIGN_BIT DP_MBIT(63)
-
-#define SP_MBIT(x) ((u32)1 << (x))
-#define SP_HIDDEN_BIT SP_MBIT(SP_MBITS)
-#define SP_SIGN_BIT SP_MBIT(31)
-
-
-#define SPSIGN(sp) (sp.parts.sign)
-#define SPBEXP(sp) (sp.parts.bexp)
-#define SPMANT(sp) (sp.parts.mant)
-
-#define DPSIGN(dp) (dp.parts.sign)
-#define DPBEXP(dp) (dp.parts.bexp)
-#define DPMANT(dp) (dp.parts.mant)
-
#define CLPAIR(x, y) ((x)*6+(y))
-#define CLEARCX \
- (ieee754_csr.cx = 0)
-
-#define SETCX(x) \
- (ieee754_csr.cx |= (x), ieee754_csr.sx |= (x))
+static inline void ieee754_clearcx(void)
+{
+ ieee754_csr.cx = 0;
+}
-#define SETANDTESTCX(x) \
- (SETCX(x), ieee754_csr.mx & (x))
+static inline void ieee754_setcx(const unsigned int flags)
+{
+ ieee754_csr.cx |= flags;
+ ieee754_csr.sx |= flags;
+}
-#define TSTX() \
- (ieee754_csr.cx & ieee754_csr.mx)
+static inline int ieee754_setandtestcx(const unsigned int x)
+{
+ ieee754_setcx(x);
+ return ieee754_csr.mx & x;
+}
#define COMPXSP \
- unsigned xm; int xe; int xs __maybe_unused; int xc
+ unsigned xm; int xe; int xs __maybe_unused; int xc
#define COMPYSP \
- unsigned ym; int ye; int ys; int yc
-
-#define EXPLODESP(v, vc, vs, ve, vm) \
-{\
- vs = SPSIGN(v);\
- ve = SPBEXP(v);\
- vm = SPMANT(v);\
- if(ve == SP_EMAX+1+SP_EBIAS){\
- if(vm == 0)\
- vc = IEEE754_CLASS_INF;\
- else if(vm & SP_MBIT(SP_MBITS-1)) \
- vc = IEEE754_CLASS_SNAN;\
- else \
- vc = IEEE754_CLASS_QNAN;\
- } else if(ve == SP_EMIN-1+SP_EBIAS) {\
- if(vm) {\
- ve = SP_EMIN;\
- vc = IEEE754_CLASS_DNORM;\
- } else\
- vc = IEEE754_CLASS_ZERO;\
- } else {\
- ve -= SP_EBIAS;\
- vm |= SP_HIDDEN_BIT;\
- vc = IEEE754_CLASS_NORM;\
- }\
+ unsigned ym; int ye; int ys; int yc
+
+#define EXPLODESP(v, vc, vs, ve, vm) \
+{ \
+ vs = SPSIGN(v); \
+ ve = SPBEXP(v); \
+ vm = SPMANT(v); \
+ if (ve == SP_EMAX+1+SP_EBIAS) { \
+ if (vm == 0) \
+ vc = IEEE754_CLASS_INF; \
+ else if (vm & SP_MBIT(SP_FBITS-1)) \
+ vc = IEEE754_CLASS_SNAN; \
+ else \
+ vc = IEEE754_CLASS_QNAN; \
+ } else if (ve == SP_EMIN-1+SP_EBIAS) { \
+ if (vm) { \
+ ve = SP_EMIN; \
+ vc = IEEE754_CLASS_DNORM; \
+ } else \
+ vc = IEEE754_CLASS_ZERO; \
+ } else { \
+ ve -= SP_EBIAS; \
+ vm |= SP_HIDDEN_BIT; \
+ vc = IEEE754_CLASS_NORM; \
+ } \
}
#define EXPLODEXSP EXPLODESP(x, xc, xs, xe, xm)
#define EXPLODEYSP EXPLODESP(y, yc, ys, ye, ym)
#define COMPXDP \
-u64 xm; int xe; int xs __maybe_unused; int xc
+ u64 xm; int xe; int xs __maybe_unused; int xc
#define COMPYDP \
-u64 ym; int ye; int ys; int yc
-
-#define EXPLODEDP(v, vc, vs, ve, vm) \
-{\
- vm = DPMANT(v);\
- vs = DPSIGN(v);\
- ve = DPBEXP(v);\
- if(ve == DP_EMAX+1+DP_EBIAS){\
- if(vm == 0)\
- vc = IEEE754_CLASS_INF;\
- else if(vm & DP_MBIT(DP_MBITS-1)) \
- vc = IEEE754_CLASS_SNAN;\
- else \
- vc = IEEE754_CLASS_QNAN;\
- } else if(ve == DP_EMIN-1+DP_EBIAS) {\
- if(vm) {\
- ve = DP_EMIN;\
- vc = IEEE754_CLASS_DNORM;\
- } else\
- vc = IEEE754_CLASS_ZERO;\
- } else {\
- ve -= DP_EBIAS;\
- vm |= DP_HIDDEN_BIT;\
- vc = IEEE754_CLASS_NORM;\
- }\
+ u64 ym; int ye; int ys; int yc
+
+#define EXPLODEDP(v, vc, vs, ve, vm) \
+{ \
+ vm = DPMANT(v); \
+ vs = DPSIGN(v); \
+ ve = DPBEXP(v); \
+ if (ve == DP_EMAX+1+DP_EBIAS) { \
+ if (vm == 0) \
+ vc = IEEE754_CLASS_INF; \
+ else if (vm & DP_MBIT(DP_FBITS-1)) \
+ vc = IEEE754_CLASS_SNAN; \
+ else \
+ vc = IEEE754_CLASS_QNAN; \
+ } else if (ve == DP_EMIN-1+DP_EBIAS) { \
+ if (vm) { \
+ ve = DP_EMIN; \
+ vc = IEEE754_CLASS_DNORM; \
+ } else \
+ vc = IEEE754_CLASS_ZERO; \
+ } else { \
+ ve -= DP_EBIAS; \
+ vm |= DP_HIDDEN_BIT; \
+ vc = IEEE754_CLASS_NORM; \
+ } \
}
#define EXPLODEXDP EXPLODEDP(x, xc, xs, xe, xm)
#define EXPLODEYDP EXPLODEDP(y, yc, ys, ye, ym)
-#define FLUSHDP(v, vc, vs, ve, vm) \
- if(vc==IEEE754_CLASS_DNORM) {\
- if(ieee754_csr.nod) {\
- SETCX(IEEE754_INEXACT);\
- vc = IEEE754_CLASS_ZERO;\
- ve = DP_EMIN-1+DP_EBIAS;\
- vm = 0;\
- v = ieee754dp_zero(vs);\
- }\
+#define FLUSHDP(v, vc, vs, ve, vm) \
+ if (vc==IEEE754_CLASS_DNORM) { \
+ if (ieee754_csr.nod) { \
+ ieee754_setcx(IEEE754_INEXACT); \
+ vc = IEEE754_CLASS_ZERO; \
+ ve = DP_EMIN-1+DP_EBIAS; \
+ vm = 0; \
+ v = ieee754dp_zero(vs); \
+ } \
}
-#define FLUSHSP(v, vc, vs, ve, vm) \
- if(vc==IEEE754_CLASS_DNORM) {\
- if(ieee754_csr.nod) {\
- SETCX(IEEE754_INEXACT);\
- vc = IEEE754_CLASS_ZERO;\
- ve = SP_EMIN-1+SP_EBIAS;\
- vm = 0;\
- v = ieee754sp_zero(vs);\
- }\
+#define FLUSHSP(v, vc, vs, ve, vm) \
+ if (vc==IEEE754_CLASS_DNORM) { \
+ if (ieee754_csr.nod) { \
+ ieee754_setcx(IEEE754_INEXACT); \
+ vc = IEEE754_CLASS_ZERO; \
+ ve = SP_EMIN-1+SP_EBIAS; \
+ vm = 0; \
+ v = ieee754sp_zero(vs); \
+ } \
}
#define FLUSHXDP FLUSHDP(x, xc, xs, xe, xm)
#define FLUSHYDP FLUSHDP(y, yc, ys, ye, ym)
#define FLUSHXSP FLUSHSP(x, xc, xs, xe, xm)
#define FLUSHYSP FLUSHSP(y, yc, ys, ye, ym)
+
+#endif /* __IEEE754INT_H */
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