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提交 d2b194ed 编写于 作者: K Kumar Gala
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powerpc/math-emu: Use kernel generic math-emu code 

The math emulation code is centered around a set of generic macros that
provide the core of the emulation that are shared by the various
architectures and other projects (like glibc).  Each arch implements its
own sfp-machine.h to specific various arch specific details.

For historic reasons that are now lost the powerpc math-emu code had
its own version of the common headers.  This moves us to using the
kernel generic version and thus getting fixes when those are updated.

Also cleaned up exception/error reporting from the FP emulation functions.
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
上级 a969e76a
展开全部 隐藏空白更改
内联 并排
Showing with 323 addition and 2266 deletion
arch/powerpc/math-emu/sfp-machine.h → arch/powerpc/include/asm/sfp-machine.h
浏览文件 @ d2b194ed
......@@ -79,27 +79,44 @@
* #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv_64(D,R,X,Y)
*/
#define _FP_MUL_MEAT_S(R,X,Y) _FP_MUL_MEAT_1_wide(S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) _FP_MUL_MEAT_2_wide(D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_S(R,X,Y) _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv_64(D,R,X,Y)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
/* These macros define what NaN looks like. They're supposed to expand to
* a comma-separated set of 32bit unsigned ints that encode NaN.
*/
#define _FP_NANFRAC_S _FP_QNANBIT_S
#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
#define _FP_NANSIGN_S 0
#define _FP_NANSIGN_D 0
#define _FP_NANSIGN_Q 0
#define _FP_KEEPNANFRACP 1
/* Exception flags. We use the bit positions of the appropriate bits
in the FPSCR, which also correspond to the FE_* bits. This makes
everything easier ;-). */
#define FP_EX_INVALID (1 << (31 - 2))
#define FP_EX_INVALID_SNAN EFLAG_VXSNAN
#define FP_EX_INVALID_ISI EFLAG_VXISI
#define FP_EX_INVALID_IDI EFLAG_VXIDI
#define FP_EX_INVALID_ZDZ EFLAG_VXZDZ
#define FP_EX_INVALID_IMZ EFLAG_VXIMZ
#define FP_EX_OVERFLOW (1 << (31 - 3))
#define FP_EX_UNDERFLOW (1 << (31 - 4))
#define FP_EX_DIVZERO (1 << (31 - 5))
#define FP_EX_INEXACT (1 << (31 - 6))
/* This macro appears to be called when both X and Y are NaNs, and
* has to choose one and copy it to R. i386 goes for the larger of the
* two, sparc64 just picks Y. I don't understand this at all so I'll
* go with sparc64 because it's shorter :-> -- PMM
*/
#define _FP_CHOOSENAN(fs, wc, R, X, Y) \
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do { \
R##_s = Y##_s; \
_FP_FRAC_COPY_##wc(R,Y); \
......@@ -107,62 +124,6 @@
} while (0)
extern void fp_unpack_d(long *, unsigned long *, unsigned long *,
long *, long *, void *);
extern int fp_pack_d(void *, long, unsigned long, unsigned long, long, long);
extern int fp_pack_ds(void *, long, unsigned long, unsigned long, long, long);
#define __FP_UNPACK_RAW_1(fs, X, val) \
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)val; \
\
X##_f = _flo->bits.frac; \
X##_e = _flo->bits.exp; \
X##_s = _flo->bits.sign; \
} while (0)
#define __FP_UNPACK_RAW_2(fs, X, val) \
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)val; \
\
X##_f0 = _flo->bits.frac0; \
X##_f1 = _flo->bits.frac1; \
X##_e = _flo->bits.exp; \
X##_s = _flo->bits.sign; \
} while (0)
#define __FP_UNPACK_S(X,val) \
do { \
__FP_UNPACK_RAW_1(S,X,val); \
_FP_UNPACK_CANONICAL(S,1,X); \
} while (0)
#define __FP_UNPACK_D(X,val) \
fp_unpack_d(&X##_s, &X##_f1, &X##_f0, &X##_e, &X##_c, val)
#define __FP_PACK_RAW_1(fs, val, X) \
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)val; \
\
_flo->bits.frac = X##_f; \
_flo->bits.exp = X##_e; \
_flo->bits.sign = X##_s; \
} while (0)
#define __FP_PACK_RAW_2(fs, val, X) \
do { \
union _FP_UNION_##fs *_flo = \
(union _FP_UNION_##fs *)val; \
\
_flo->bits.frac0 = X##_f0; \
_flo->bits.frac1 = X##_f1; \
_flo->bits.exp = X##_e; \
_flo->bits.sign = X##_s; \
} while (0)
#include <linux/kernel.h>
#include <linux/sched.h>
......@@ -182,15 +143,30 @@ extern int fp_pack_ds(void *, long, unsigned long, unsigned long, long, long);
#define __FP_PACK_S(val,X) \
({ int __exc = _FP_PACK_CANONICAL(S,1,X); \
if(!__exc || !__FPU_TRAP_P(__exc)) \
__FP_PACK_RAW_1(S,val,X); \
_FP_PACK_RAW_1_P(S,val,X); \
__exc; \
})
#define __FP_PACK_D(val,X) \
fp_pack_d(val, X##_s, X##_f1, X##_f0, X##_e, X##_c)
#define __FP_PACK_DS(val,X) \
fp_pack_ds(val, X##_s, X##_f1, X##_f0, X##_e, X##_c)
do { \
_FP_PACK_CANONICAL(D, 2, X); \
if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) \
_FP_PACK_RAW_2_P(D, val, X); \
} while (0)
#define __FP_PACK_DS(val,X) \
do { \
FP_DECL_S(__X); \
FP_CONV(S, D, 1, 2, __X, X); \
_FP_PACK_CANONICAL(S, 1, __X); \
if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) { \
_FP_UNPACK_CANONICAL(S, 1, __X); \
FP_CONV(D, S, 2, 1, X, __X); \
_FP_PACK_CANONICAL(D, 2, X); \
if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) \
_FP_PACK_RAW_2_P(D, val, X); \
} \
} while (0)
/* Obtain the current rounding mode. */
#define FP_ROUNDMODE \
......
arch/powerpc/math-emu/Makefile
浏览文件 @ d2b194ed
......@@ -4,13 +4,14 @@ obj-y := math.o fmr.o lfd.o stfd.o
obj-$(CONFIG_MATH_EMULATION) += fabs.o fadd.o fadds.o fcmpo.o fcmpu.o \
fctiw.o fctiwz.o fdiv.o fdivs.o \
fmadd.o fmadds.o fmsub.o fmsubs.o \
fmul.o fmuls.o fnabs.o fneg.o types.o \
fmul.o fmuls.o fnabs.o fneg.o \
fnmadd.o fnmadds.o fnmsub.o fnmsubs.o \
fres.o frsp.o frsqrte.o fsel.o lfs.o \
fsqrt.o fsqrts.o fsub.o fsubs.o \
mcrfs.o mffs.o mtfsb0.o mtfsb1.o \
mtfsf.o mtfsfi.o stfiwx.o stfs.o \
udivmodti4.o
mtfsf.o mtfsfi.o stfiwx.o stfs.o
CFLAGS_fabs.o = -fno-builtin-fabs
CFLAGS_math.o = -fno-builtin-fabs
EXTRA_CFLAGS = -I. -Iinclude/math-emu -w
arch/powerpc/math-emu/double.h 已删除 100644 → 0
浏览文件 @ a969e76a
/*
* Definitions for IEEE Double Precision
*/
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
#if _FP_W_TYPE_SIZE < 64
#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE)
#else
#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE
#endif
#define _FP_FRACBITS_D 53
#define _FP_FRACXBITS_D (_FP_FRACTBITS_D - _FP_FRACBITS_D)
#define _FP_WFRACBITS_D (_FP_WORKBITS + _FP_FRACBITS_D)
#define _FP_WFRACXBITS_D (_FP_FRACTBITS_D - _FP_WFRACBITS_D)
#define _FP_EXPBITS_D 11
#define _FP_EXPBIAS_D 1023
#define _FP_EXPMAX_D 2047
#define _FP_QNANBIT_D \
((_FP_W_TYPE)1 << ((_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE))
#define _FP_IMPLBIT_D \
((_FP_W_TYPE)1 << ((_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE))
#define _FP_OVERFLOW_D \
((_FP_W_TYPE)1 << (_FP_WFRACBITS_D % _FP_W_TYPE_SIZE))
#if _FP_W_TYPE_SIZE < 64
union _FP_UNION_D
{
double flt;
struct {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_D;
unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
unsigned frac0 : _FP_W_TYPE_SIZE;
#else
unsigned frac0 : _FP_W_TYPE_SIZE;
unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
unsigned exp : _FP_EXPBITS_D;
unsigned sign : 1;
#endif
} bits __attribute__((packed));
};
#define FP_DECL_D(X) _FP_DECL(2,X)
#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_2(D,X,val)
#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_2(D,val,X)
#define FP_UNPACK_D(X,val) \
do { \
_FP_UNPACK_RAW_2(D,X,val); \
_FP_UNPACK_CANONICAL(D,2,X); \
} while (0)
#define FP_PACK_D(val,X) \
do { \
_FP_PACK_CANONICAL(D,2,X); \
_FP_PACK_RAW_2(D,val,X); \
} while (0)
#define FP_NEG_D(R,X) _FP_NEG(D,2,R,X)
#define FP_ADD_D(R,X,Y) _FP_ADD(D,2,R,X,Y)
#define FP_SUB_D(R,X,Y) _FP_SUB(D,2,R,X,Y)
#define FP_MUL_D(R,X,Y) _FP_MUL(D,2,R,X,Y)
#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y)
#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X)
#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un)
#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y)
#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,2,r,X,rsz,rsg)
#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,2,X,r,rs,rt)
#else
union _FP_UNION_D
{
double flt;
struct {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_D;
unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
#else
unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
unsigned exp : _FP_EXPBITS_D;
unsigned sign : 1;
#endif
} bits __attribute__((packed));
};
#define FP_DECL_D(X) _FP_DECL(1,X)
#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_1(D,X,val)
#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_1(D,val,X)
#define FP_UNPACK_D(X,val) \
do { \
_FP_UNPACK_RAW_1(D,X,val); \
_FP_UNPACK_CANONICAL(D,1,X); \
} while (0)
#define FP_PACK_D(val,X) \
do { \
_FP_PACK_CANONICAL(D,1,X); \
_FP_PACK_RAW_1(D,val,X); \
} while (0)
#define FP_NEG_D(R,X) _FP_NEG(D,1,R,X)
#define FP_ADD_D(R,X,Y) _FP_ADD(D,1,R,X,Y)
#define FP_SUB_D(R,X,Y) _FP_SUB(D,1,R,X,Y)
#define FP_MUL_D(R,X,Y) _FP_MUL(D,1,R,X,Y)
#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y)
#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X)
/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by
the target machine. */
#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,1,r,X,Y,un)
#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,1,r,X,Y)
#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,1,r,X,rsz,rsg)
#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,1,X,r,rs,rt)
#endif /* W_TYPE_SIZE < 64 */
arch/powerpc/math-emu/fadd.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fadd(void *frD, void *frA, void *frB)
......@@ -11,28 +12,28 @@ fadd(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif
if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
ret |= EFLAG_VXISI;
FP_ADD_D(R, A, B);
#ifdef DEBUG
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fadds.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fadds(void *frD, void *frA, void *frB)
......@@ -12,28 +13,27 @@ fadds(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
int ret = 0;
FP_DECL_EX;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif
if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
ret |= EFLAG_VXISI;
FP_ADD_D(R, A, B);
#ifdef DEBUG
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fcmpo.c
浏览文件 @ d2b194ed
......@@ -2,14 +2,16 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
{
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_EX;
int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
long cmp;
int ret = 0;
......@@ -18,8 +20,8 @@ fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......
arch/powerpc/math-emu/fcmpu.c
浏览文件 @ d2b194ed
......@@ -2,14 +2,16 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fcmpu(u32 *ccr, int crfD, void *frA, void *frB)
{
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_EX;
int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
long cmp;
......@@ -17,8 +19,8 @@ fcmpu(u32 *ccr, int crfD, void *frA, void *frB)
printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......
arch/powerpc/math-emu/fctiw.c
浏览文件 @ d2b194ed
......@@ -2,16 +2,18 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fctiw(u32 *frD, void *frB)
{
FP_DECL_D(B);
FP_DECL_EX;
unsigned int r;
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(B, frB);
FP_TO_INT_D(r, B, 32, 1);
frD[1] = r;
......
arch/powerpc/math-emu/fctiwz.c
浏览文件 @ d2b194ed
......@@ -2,13 +2,15 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fctiwz(u32 *frD, void *frB)
{
FP_DECL_D(B);
FP_DECL_EX;
u32 fpscr;
unsigned int r;
......@@ -16,7 +18,7 @@ fctiwz(u32 *frD, void *frB)
__FPU_FPSCR &= ~(3);
__FPU_FPSCR |= FP_RND_ZERO;
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(B, frB);
FP_TO_INT_D(r, B, 32, 1);
frD[1] = r;
......
arch/powerpc/math-emu/fdiv.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fdiv(void *frD, void *frA, void *frB)
......@@ -11,14 +12,15 @@ fdiv(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -49,5 +51,7 @@ fdiv(void *frD, void *frA, void *frB)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fdivs.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fdivs(void *frD, void *frA, void *frB)
......@@ -12,14 +13,15 @@ fdivs(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -51,5 +53,7 @@ fdivs(void *frD, void *frA, void *frB)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmadd.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fmadd(void *frD, void *frA, void *frB, void *frC)
......@@ -13,15 +14,16 @@ fmadd(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -44,5 +46,7 @@ fmadd(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmadds.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fmadds(void *frD, void *frA, void *frB, void *frC)
......@@ -14,15 +15,16 @@ fmadds(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -45,5 +47,7 @@ fmadds(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmsub.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fmsub(void *frD, void *frA, void *frB, void *frC)
......@@ -13,15 +14,16 @@ fmsub(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -47,5 +49,7 @@ fmsub(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmsubs.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fmsubs(void *frD, void *frA, void *frB, void *frC)
......@@ -14,15 +15,16 @@ fmsubs(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -48,5 +50,7 @@ fmsubs(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmul.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fmul(void *frD, void *frA, void *frB)
......@@ -11,14 +12,15 @@ fmul(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
......@@ -38,5 +40,7 @@ fmul(void *frD, void *frA, void *frB)
R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fmuls.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fmuls(void *frD, void *frA, void *frB)
......@@ -12,14 +13,15 @@ fmuls(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
......@@ -39,5 +41,7 @@ fmuls(void *frD, void *frA, void *frB)
R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fnmadd.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fnmadd(void *frD, void *frA, void *frB, void *frC)
......@@ -13,15 +14,16 @@ fnmadd(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -47,5 +49,7 @@ fnmadd(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fnmadds.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fnmadds(void *frD, void *frA, void *frB, void *frC)
......@@ -14,15 +15,16 @@ fnmadds(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -48,5 +50,7 @@ fnmadds(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fnmsub.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fnmsub(void *frD, void *frA, void *frB, void *frC)
......@@ -13,15 +14,16 @@ fnmsub(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -50,5 +52,7 @@ fnmsub(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fnmsubs.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fnmsubs(void *frD, void *frA, void *frB, void *frC)
......@@ -14,15 +15,16 @@ fnmsubs(void *frD, void *frA, void *frB, void *frC)
FP_DECL_D(B);
FP_DECL_D(C);
FP_DECL_D(T);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
__FP_UNPACK_D(C, frC);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
FP_UNPACK_DP(C, frC);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -51,5 +53,7 @@ fnmsubs(void *frD, void *frA, void *frB, void *frC)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/frsp.c
浏览文件 @ d2b194ed
......@@ -2,24 +2,28 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
frsp(void *frD, void *frB)
{
FP_DECL_D(B);
FP_DECL_EX;
#ifdef DEBUG
printk("%s: D %p, B %p\n", __func__, frD, frB);
#endif
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif
return __FP_PACK_DS(frD, B);
__FP_PACK_DS(frD, B);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fsel.c
浏览文件 @ d2b194ed
......@@ -2,19 +2,21 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fsel(u32 *frD, void *frA, u32 *frB, u32 *frC)
{
FP_DECL_D(A);
FP_DECL_EX;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
#endif
__FP_UNPACK_D(A, frA);
FP_UNPACK_DP(A, frA);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......
arch/powerpc/math-emu/fsqrt.c
浏览文件 @ d2b194ed
......@@ -2,21 +2,23 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fsqrt(void *frD, void *frB)
{
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frB);
#endif
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
......@@ -33,5 +35,7 @@ fsqrt(void *frD, void *frB)
printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fsqrts.c
浏览文件 @ d2b194ed
......@@ -2,22 +2,24 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fsqrts(void *frD, void *frB)
{
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p %p\n", __func__, frD, frB);
#endif
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
......@@ -34,5 +36,7 @@ fsqrts(void *frD, void *frB)
printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fsub.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,9 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
int
fsub(void *frD, void *frA, void *frB)
......@@ -11,14 +12,15 @@ fsub(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -37,5 +39,7 @@ fsub(void *frD, void *frA, void *frB)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_D(frD, R));
__FP_PACK_D(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/fsubs.c
浏览文件 @ d2b194ed
......@@ -2,9 +2,10 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
fsubs(void *frD, void *frA, void *frB)
......@@ -12,14 +13,15 @@ fsubs(void *frD, void *frA, void *frB)
FP_DECL_D(A);
FP_DECL_D(B);
FP_DECL_D(R);
FP_DECL_EX;
int ret = 0;
#ifdef DEBUG
printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif
__FP_UNPACK_D(A, frA);
__FP_UNPACK_D(B, frB);
FP_UNPACK_DP(A, frA);
FP_UNPACK_DP(B, frB);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -38,5 +40,7 @@ fsubs(void *frD, void *frA, void *frB)
printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return (ret | __FP_PACK_DS(frD, R));
__FP_PACK_DS(frD, R);
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/lfd.c
浏览文件 @ d2b194ed
......@@ -2,8 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "sfp-machine.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/double.h>
int
lfd(void *frD, void *ea)
......
arch/powerpc/math-emu/lfs.c
浏览文件 @ d2b194ed
......@@ -2,15 +2,17 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
lfs(void *frD, void *ea)
{
FP_DECL_D(R);
FP_DECL_S(A);
FP_DECL_EX;
float f;
#ifdef DEBUG
......@@ -20,7 +22,7 @@ lfs(void *frD, void *ea)
if (copy_from_user(&f, ea, sizeof(float)))
return -EFAULT;
__FP_UNPACK_S(A, &f);
FP_UNPACK_S(A, f);
#ifdef DEBUG
printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c,
......@@ -33,5 +35,12 @@ lfs(void *frD, void *ea)
printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif
return __FP_PACK_D(frD, R);
if (R_c == FP_CLS_NAN) {
R_e = _FP_EXPMAX_D;
_FP_PACK_RAW_2_P(D, frD, R);
} else {
__FP_PACK_D(frD, R);
}
return 0;
}
arch/powerpc/math-emu/math.c
浏览文件 @ d2b194ed
......@@ -8,8 +8,8 @@
#include <asm/uaccess.h>
#include <asm/reg.h>
#include "sfp-machine.h"
#include "double.h"
#include <asm/sfp-machine.h>
#include <math-emu/double.h>
#define FLOATFUNC(x) extern int x(void *, void *, void *, void *)
......@@ -168,6 +168,8 @@ record_exception(struct pt_regs *regs, int eflag)
fpscr |= FPSCR_ZX;
if (eflag & EFLAG_INEXACT)
fpscr |= FPSCR_XX;
if (eflag & EFLAG_INVALID)
fpscr |= FPSCR_VX;
if (eflag & EFLAG_VXSNAN)
fpscr |= FPSCR_VXSNAN;
if (eflag & EFLAG_VXISI)
......@@ -188,7 +190,7 @@ record_exception(struct pt_regs *regs, int eflag)
fpscr |= FPSCR_VXCVI;
}
fpscr &= ~(FPSCR_VX);
// fpscr &= ~(FPSCR_VX);
if (fpscr & (FPSCR_VXSNAN | FPSCR_VXISI | FPSCR_VXIDI |
FPSCR_VXZDZ | FPSCR_VXIMZ | FPSCR_VXVC |
FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI))
......
arch/powerpc/math-emu/mcrfs.c
浏览文件 @ d2b194ed
......@@ -2,7 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mcrfs(u32 *ccr, u32 crfD, u32 crfS)
......
arch/powerpc/math-emu/mffs.c
浏览文件 @ d2b194ed
......@@ -2,7 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mffs(u32 *frD)
......
arch/powerpc/math-emu/mtfsb0.c
浏览文件 @ d2b194ed
......@@ -2,7 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mtfsb0(int crbD)
......
arch/powerpc/math-emu/mtfsb1.c
浏览文件 @ d2b194ed
......@@ -2,7 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mtfsb1(int crbD)
......
arch/powerpc/math-emu/mtfsf.c
浏览文件 @ d2b194ed
......@@ -2,12 +2,14 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mtfsf(unsigned int FM, u32 *frB)
{
u32 mask;
u32 fpscr;
if (FM == 0)
return 0;
......@@ -37,6 +39,22 @@ mtfsf(unsigned int FM, u32 *frB)
__FPU_FPSCR &= ~(mask);
__FPU_FPSCR |= (frB[1] & mask);
__FPU_FPSCR &= ~(FPSCR_VX);
if (__FPU_FPSCR & (FPSCR_VXSNAN | FPSCR_VXISI | FPSCR_VXIDI |
FPSCR_VXZDZ | FPSCR_VXIMZ | FPSCR_VXVC |
FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI))
__FPU_FPSCR |= FPSCR_VX;
fpscr = __FPU_FPSCR;
fpscr &= ~(FPSCR_FEX);
if (((fpscr & FPSCR_VX) && (fpscr & FPSCR_VE)) ||
((fpscr & FPSCR_OX) && (fpscr & FPSCR_OE)) ||
((fpscr & FPSCR_UX) && (fpscr & FPSCR_UE)) ||
((fpscr & FPSCR_ZX) && (fpscr & FPSCR_ZE)) ||
((fpscr & FPSCR_XX) && (fpscr & FPSCR_XE)))
fpscr |= FPSCR_FEX;
__FPU_FPSCR = fpscr;
#ifdef DEBUG
printk("%s: %02x %p: %08lx\n", __func__, FM, frB, __FPU_FPSCR);
#endif
......
arch/powerpc/math-emu/mtfsfi.c
浏览文件 @ d2b194ed
......@@ -2,7 +2,8 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
int
mtfsfi(unsigned int crfD, unsigned int IMM)
......
arch/powerpc/math-emu/op-1.h 已删除 100644 → 0
浏览文件 @ a969e76a
/*
* Basic one-word fraction declaration and manipulation.
*/
#define _FP_FRAC_DECL_1(X) _FP_W_TYPE X##_f
#define _FP_FRAC_COPY_1(D,S) (D##_f = S##_f)
#define _FP_FRAC_SET_1(X,I) (X##_f = I)
#define _FP_FRAC_HIGH_1(X) (X##_f)
#define _FP_FRAC_LOW_1(X) (X##_f)
#define _FP_FRAC_WORD_1(X,w) (X##_f)
#define _FP_FRAC_ADDI_1(X,I) (X##_f += I)
#define _FP_FRAC_SLL_1(X,N) \
do { \
if (__builtin_constant_p(N) && (N) == 1) \
X##_f += X##_f; \
else \
X##_f <<= (N); \
} while (0)
#define _FP_FRAC_SRL_1(X,N) (X##_f >>= N)
/* Right shift with sticky-lsb. */
#define _FP_FRAC_SRS_1(X,N,sz) __FP_FRAC_SRS_1(X##_f, N, sz)
#define __FP_FRAC_SRS_1(X,N,sz) \
(X = (X >> (N) | (__builtin_constant_p(N) && (N) == 1 \
? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0)))
#define _FP_FRAC_ADD_1(R,X,Y) (R##_f = X##_f + Y##_f)
#define _FP_FRAC_SUB_1(R,X,Y) (R##_f = X##_f - Y##_f)
#define _FP_FRAC_CLZ_1(z, X) __FP_CLZ(z, X##_f)
/* Predicates */
#define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE)X##_f < 0)
#define _FP_FRAC_ZEROP_1(X) (X##_f == 0)
#define _FP_FRAC_OVERP_1(fs,X) (X##_f & _FP_OVERFLOW_##fs)
#define _FP_FRAC_EQ_1(X, Y) (X##_f == Y##_f)
#define _FP_FRAC_GE_1(X, Y) (X##_f >= Y##_f)
#define _FP_FRAC_GT_1(X, Y) (X##_f > Y##_f)
#define _FP_ZEROFRAC_1 0
#define _FP_MINFRAC_1 1
/*
* Unpack the raw bits of a native fp value. Do not classify or
* normalize the data.
*/
#define _FP_UNPACK_RAW_1(fs, X, val) \
do { \
union _FP_UNION_##fs _flo; _flo.flt = (val); \
\
X##_f = _flo.bits.frac; \
X##_e = _flo.bits.exp; \
X##_s = _flo.bits.sign; \
} while (0)
/*
* Repack the raw bits of a native fp value.
*/
#define _FP_PACK_RAW_1(fs, val, X) \
do { \
union _FP_UNION_##fs _flo; \
\
_flo.bits.frac = X##_f; \
_flo.bits.exp = X##_e; \
_flo.bits.sign = X##_s; \
\
(val) = _flo.flt; \
} while (0)
/*
* Multiplication algorithms:
*/
/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the
multiplication immediately. */
#define _FP_MUL_MEAT_1_imm(fs, R, X, Y) \
do { \
R##_f = X##_f * Y##_f; \
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_1(R, _FP_WFRACBITS_##fs-1, 2*_FP_WFRACBITS_##fs); \
} while (0)
/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
#define _FP_MUL_MEAT_1_wide(fs, R, X, Y, doit) \
do { \
_FP_W_TYPE _Z_f0, _Z_f1; \
doit(_Z_f1, _Z_f0, X##_f, Y##_f); \
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_2(_Z, _FP_WFRACBITS_##fs-1, 2*_FP_WFRACBITS_##fs); \
R##_f = _Z_f0; \
} while (0)
/* Finally, a simple widening multiply algorithm. What fun! */
#define _FP_MUL_MEAT_1_hard(fs, R, X, Y) \
do { \
_FP_W_TYPE _xh, _xl, _yh, _yl, _z_f0, _z_f1, _a_f0, _a_f1; \
\
/* split the words in half */ \
_xh = X##_f >> (_FP_W_TYPE_SIZE/2); \
_xl = X##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
_yh = Y##_f >> (_FP_W_TYPE_SIZE/2); \
_yl = Y##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \
\
/* multiply the pieces */ \
_z_f0 = _xl * _yl; \
_a_f0 = _xh * _yl; \
_a_f1 = _xl * _yh; \
_z_f1 = _xh * _yh; \
\
/* reassemble into two full words */ \
if ((_a_f0 += _a_f1) < _a_f1) \
_z_f1 += (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2); \
_a_f1 = _a_f0 >> (_FP_W_TYPE_SIZE/2); \
_a_f0 = _a_f0 << (_FP_W_TYPE_SIZE/2); \
_FP_FRAC_ADD_2(_z, _z, _a); \
\
/* normalize */ \
_FP_FRAC_SRS_2(_z, _FP_WFRACBITS_##fs - 1, 2*_FP_WFRACBITS_##fs); \
R##_f = _z_f0; \
} while (0)
/*
* Division algorithms:
*/
/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the
division immediately. Give this macro either _FP_DIV_HELP_imm for
C primitives or _FP_DIV_HELP_ldiv for the ISO function. Which you
choose will depend on what the compiler does with divrem4. */
#define _FP_DIV_MEAT_1_imm(fs, R, X, Y, doit) \
do { \
_FP_W_TYPE _q, _r; \
X##_f <<= (X##_f < Y##_f \
? R##_e--, _FP_WFRACBITS_##fs \
: _FP_WFRACBITS_##fs - 1); \
doit(_q, _r, X##_f, Y##_f); \
R##_f = _q | (_r != 0); \
} while (0)
/* GCC's longlong.h defines a 2W / 1W => (1W,1W) primitive udiv_qrnnd
that may be useful in this situation. This first is for a primitive
that requires normalization, the second for one that does not. Look
for UDIV_NEEDS_NORMALIZATION to tell which your machine needs. */
#define _FP_DIV_MEAT_1_udiv_norm(fs, R, X, Y) \
do { \
_FP_W_TYPE _nh, _nl, _q, _r; \
\
/* Normalize Y -- i.e. make the most significant bit set. */ \
Y##_f <<= _FP_WFRACXBITS_##fs - 1; \
\
/* Shift X op correspondingly high, that is, up one full word. */ \
if (X##_f <= Y##_f) \
{ \
_nl = 0; \
_nh = X##_f; \
} \
else \
{ \
R##_e++; \
_nl = X##_f << (_FP_W_TYPE_SIZE-1); \
_nh = X##_f >> 1; \
} \
\
udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \
R##_f = _q | (_r != 0); \
} while (0)
#define _FP_DIV_MEAT_1_udiv(fs, R, X, Y) \
do { \
_FP_W_TYPE _nh, _nl, _q, _r; \
if (X##_f < Y##_f) \
{ \
R##_e--; \
_nl = X##_f << _FP_WFRACBITS_##fs; \
_nh = X##_f >> _FP_WFRACXBITS_##fs; \
} \
else \
{ \
_nl = X##_f << (_FP_WFRACBITS_##fs - 1); \
_nh = X##_f >> (_FP_WFRACXBITS_##fs + 1); \
} \
udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \
R##_f = _q | (_r != 0); \
} while (0)
/*
* Square root algorithms:
* We have just one right now, maybe Newton approximation
* should be added for those machines where division is fast.
*/
#define _FP_SQRT_MEAT_1(R, S, T, X, q) \
do { \
while (q) \
{ \
T##_f = S##_f + q; \
if (T##_f <= X##_f) \
{ \
S##_f = T##_f + q; \
X##_f -= T##_f; \
R##_f += q; \
} \
_FP_FRAC_SLL_1(X, 1); \
q >>= 1; \
} \
} while (0)
/*
* Assembly/disassembly for converting to/from integral types.
* No shifting or overflow handled here.
*/
#define _FP_FRAC_ASSEMBLE_1(r, X, rsize) (r = X##_f)
#define _FP_FRAC_DISASSEMBLE_1(X, r, rsize) (X##_f = r)
/*
* Convert FP values between word sizes
*/
#define _FP_FRAC_CONV_1_1(dfs, sfs, D, S) \
do { \
D##_f = S##_f; \
if (_FP_WFRACBITS_##sfs > _FP_WFRACBITS_##dfs) \
_FP_FRAC_SRS_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs), \
_FP_WFRACBITS_##sfs); \
else \
D##_f <<= _FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs; \
} while (0)
arch/powerpc/math-emu/op-2.h 已删除 100644 → 0
浏览文件 @ a969e76a
/*
* Basic two-word fraction declaration and manipulation.
*/
#define _FP_FRAC_DECL_2(X) _FP_W_TYPE X##_f0, X##_f1
#define _FP_FRAC_COPY_2(D,S) (D##_f0 = S##_f0, D##_f1 = S##_f1)
#define _FP_FRAC_SET_2(X,I) __FP_FRAC_SET_2(X, I)
#define _FP_FRAC_HIGH_2(X) (X##_f1)
#define _FP_FRAC_LOW_2(X) (X##_f0)
#define _FP_FRAC_WORD_2(X,w) (X##_f##w)
#define _FP_FRAC_SLL_2(X,N) \
do { \
if ((N) < _FP_W_TYPE_SIZE) \
{ \
if (__builtin_constant_p(N) && (N) == 1) \
{ \
X##_f1 = X##_f1 + X##_f1 + (((_FP_WS_TYPE)(X##_f0)) < 0); \
X##_f0 += X##_f0; \
} \
else \
{ \
X##_f1 = X##_f1 << (N) | X##_f0 >> (_FP_W_TYPE_SIZE - (N)); \
X##_f0 <<= (N); \
} \
} \
else \
{ \
X##_f1 = X##_f0 << ((N) - _FP_W_TYPE_SIZE); \
X##_f0 = 0; \
} \
} while (0)
#define _FP_FRAC_SRL_2(X,N) \
do { \
if ((N) < _FP_W_TYPE_SIZE) \
{ \
X##_f0 = X##_f0 >> (N) | X##_f1 << (_FP_W_TYPE_SIZE - (N)); \
X##_f1 >>= (N); \
} \
else \
{ \
X##_f0 = X##_f1 >> ((N) - _FP_W_TYPE_SIZE); \
X##_f1 = 0; \
} \
} while (0)
/* Right shift with sticky-lsb. */
#define _FP_FRAC_SRS_2(X,N,sz) \
do { \
if ((N) < _FP_W_TYPE_SIZE) \
{ \
X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) | \
(__builtin_constant_p(N) && (N) == 1 \
? X##_f0 & 1 \
: (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \
X##_f1 >>= (N); \
} \
else \
{ \
X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE) | \
(((X##_f1 << (2 * _FP_W_TYPE_SIZE - (N))) | \
X##_f0) != 0)); \
X##_f1 = 0; \
} \
} while (0)
#define _FP_FRAC_ADDI_2(X,I) \
__FP_FRAC_ADDI_2(X##_f1, X##_f0, I)
#define _FP_FRAC_ADD_2(R,X,Y) \
__FP_FRAC_ADD_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
#define _FP_FRAC_SUB_2(R,X,Y) \
__FP_FRAC_SUB_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
#define _FP_FRAC_CLZ_2(R,X) \
do { \
if (X##_f1) \
__FP_CLZ(R,X##_f1); \
else \
{ \
__FP_CLZ(R,X##_f0); \
R += _FP_W_TYPE_SIZE; \
} \
} while(0)
/* Predicates */
#define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0)
#define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0)
#define _FP_FRAC_OVERP_2(fs,X) (X##_f1 & _FP_OVERFLOW_##fs)
#define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0)
#define _FP_FRAC_GT_2(X, Y) \
((X##_f1 > Y##_f1) || (X##_f1 == Y##_f1 && X##_f0 > Y##_f0))
#define _FP_FRAC_GE_2(X, Y) \
((X##_f1 > Y##_f1) || (X##_f1 == Y##_f1 && X##_f0 >= Y##_f0))
#define _FP_ZEROFRAC_2 0, 0
#define _FP_MINFRAC_2 0, 1
/*
* Internals
*/
#define __FP_FRAC_SET_2(X,I1,I0) (X##_f0 = I0, X##_f1 = I1)
#define __FP_CLZ_2(R, xh, xl) \
do { \
if (xh) \
__FP_CLZ(R,xl); \
else \
{ \
__FP_CLZ(R,xl); \
R += _FP_W_TYPE_SIZE; \
} \
} while(0)
#if 0
#ifndef __FP_FRAC_ADDI_2
#define __FP_FRAC_ADDI_2(xh, xl, i) \
(xh += ((xl += i) < i))
#endif
#ifndef __FP_FRAC_ADD_2
#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \
(rh = xh + yh + ((rl = xl + yl) < xl))
#endif
#ifndef __FP_FRAC_SUB_2
#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \
(rh = xh - yh - ((rl = xl - yl) > xl))
#endif
#else
#undef __FP_FRAC_ADDI_2
#define __FP_FRAC_ADDI_2(xh, xl, i) add_ssaaaa(xh, xl, xh, xl, 0, i)
#undef __FP_FRAC_ADD_2
#define __FP_FRAC_ADD_2 add_ssaaaa
#undef __FP_FRAC_SUB_2
#define __FP_FRAC_SUB_2 sub_ddmmss
#endif
/*
* Unpack the raw bits of a native fp value. Do not classify or
* normalize the data.
*/
#define _FP_UNPACK_RAW_2(fs, X, val) \
do { \
union _FP_UNION_##fs _flo; _flo.flt = (val); \
\
X##_f0 = _flo.bits.frac0; \
X##_f1 = _flo.bits.frac1; \
X##_e = _flo.bits.exp; \
X##_s = _flo.bits.sign; \
} while (0)
/*
* Repack the raw bits of a native fp value.
*/
#define _FP_PACK_RAW_2(fs, val, X) \
do { \
union _FP_UNION_##fs _flo; \
\
_flo.bits.frac0 = X##_f0; \
_flo.bits.frac1 = X##_f1; \
_flo.bits.exp = X##_e; \
_flo.bits.sign = X##_s; \
\
(val) = _flo.flt; \
} while (0)
/*
* Multiplication algorithms:
*/
/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
#define _FP_MUL_MEAT_2_wide(fs, R, X, Y, doit) \
do { \
_FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
\
doit(_FP_FRAC_WORD_4(_z,1), _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \
doit(_b_f1, _b_f0, X##_f0, Y##_f1); \
doit(_c_f1, _c_f0, X##_f1, Y##_f0); \
doit(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), X##_f1, Y##_f1); \
\
__FP_FRAC_ADD_4(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
_FP_FRAC_WORD_4(_z,1),_FP_FRAC_WORD_4(_z,0), \
0, _b_f1, _b_f0, 0, \
_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
_FP_FRAC_WORD_4(_z,1),_FP_FRAC_WORD_4(_z,0)); \
__FP_FRAC_ADD_4(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
_FP_FRAC_WORD_4(_z,1),_FP_FRAC_WORD_4(_z,0), \
0, _c_f1, _c_f0, 0, \
_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
_FP_FRAC_WORD_4(_z,1),_FP_FRAC_WORD_4(_z,0)); \
\
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_4(_z, _FP_WFRACBITS_##fs-1, 2*_FP_WFRACBITS_##fs); \
R##_f0 = _FP_FRAC_WORD_4(_z,0); \
R##_f1 = _FP_FRAC_WORD_4(_z,1); \
} while (0)
/* This next macro appears to be totally broken. Fortunately nowhere
* seems to use it :-> The problem is that we define _z[4] but
* then use it in _FP_FRAC_SRS_4, which will attempt to access
* _z_f[n] which will cause an error. The fix probably involves
* declaring it with _FP_FRAC_DECL_4, see previous macro. -- PMM 02/1998
*/
#define _FP_MUL_MEAT_2_gmp(fs, R, X, Y) \
do { \
_FP_W_TYPE _x[2], _y[2], _z[4]; \
_x[0] = X##_f0; _x[1] = X##_f1; \
_y[0] = Y##_f0; _y[1] = Y##_f1; \
\
mpn_mul_n(_z, _x, _y, 2); \
\
/* Normalize since we know where the msb of the multiplicands \
were (bit B), we know that the msb of the of the product is \
at either 2B or 2B-1. */ \
_FP_FRAC_SRS_4(_z, _FP_WFRACBITS##_fs-1, 2*_FP_WFRACBITS_##fs); \
R##_f0 = _z[0]; \
R##_f1 = _z[1]; \
} while (0)
/*
* Division algorithms:
* This seems to be giving me difficulties -- PMM
* Look, NetBSD seems to be able to comment algorithms. Can't you?
* I've thrown printks at the problem.
* This now appears to work, but I still don't really know why.
* Also, I don't think the result is properly normalised...
*/
#define _FP_DIV_MEAT_2_udiv_64(fs, R, X, Y) \
do { \
extern void _fp_udivmodti4(_FP_W_TYPE q[2], _FP_W_TYPE r[2], \
_FP_W_TYPE n1, _FP_W_TYPE n0, \
_FP_W_TYPE d1, _FP_W_TYPE d0); \
_FP_W_TYPE _n_f3, _n_f2, _n_f1, _n_f0, _r_f1, _r_f0; \
_FP_W_TYPE _q_f1, _q_f0, _m_f1, _m_f0; \
_FP_W_TYPE _rmem[2], _qmem[2]; \
/* I think this check is to ensure that the result is normalised. \
* Assuming X,Y normalised (ie in [1.0,2.0)) X/Y will be in \
* [0.5,2.0). Furthermore, it will be less than 1.0 iff X < Y. \
* In this case we tweak things. (this is based on comments in \
* the NetBSD FPU emulation code. ) \
* We know X,Y are normalised because we ensure this as part of \
* the unpacking process. -- PMM \
*/ \
if (_FP_FRAC_GT_2(X, Y)) \
{ \
/* R##_e++; */ \
_n_f3 = X##_f1 >> 1; \
_n_f2 = X##_f1 << (_FP_W_TYPE_SIZE - 1) | X##_f0 >> 1; \
_n_f1 = X##_f0 << (_FP_W_TYPE_SIZE - 1); \
_n_f0 = 0; \
} \
else \
{ \
R##_e--; \
_n_f3 = X##_f1; \
_n_f2 = X##_f0; \
_n_f1 = _n_f0 = 0; \
} \
\
/* Normalize, i.e. make the most significant bit of the \
denominator set. CHANGED: - 1 to nothing -- PMM */ \
_FP_FRAC_SLL_2(Y, _FP_WFRACXBITS_##fs /* -1 */); \
\
/* Do the 256/128 bit division given the 128-bit _fp_udivmodtf4 \
primitive snagged from libgcc2.c. */ \
\
_fp_udivmodti4(_qmem, _rmem, _n_f3, _n_f2, 0, Y##_f1); \
_q_f1 = _qmem[0]; \
umul_ppmm(_m_f1, _m_f0, _q_f1, Y##_f0); \
_r_f1 = _rmem[0]; \
_r_f0 = _n_f1; \
if (_FP_FRAC_GT_2(_m, _r)) \
{ \
_q_f1--; \
_FP_FRAC_ADD_2(_r, _r, Y); \
if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
{ \
_q_f1--; \
_FP_FRAC_ADD_2(_r, _r, Y); \
} \
} \
_FP_FRAC_SUB_2(_r, _r, _m); \
\
_fp_udivmodti4(_qmem, _rmem, _r_f1, _r_f0, 0, Y##_f1); \
_q_f0 = _qmem[0]; \
umul_ppmm(_m_f1, _m_f0, _q_f0, Y##_f0); \
_r_f1 = _rmem[0]; \
_r_f0 = _n_f0; \
if (_FP_FRAC_GT_2(_m, _r)) \
{ \
_q_f0--; \
_FP_FRAC_ADD_2(_r, _r, Y); \
if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
{ \
_q_f0--; \
_FP_FRAC_ADD_2(_r, _r, Y); \
} \
} \
_FP_FRAC_SUB_2(_r, _r, _m); \
\
R##_f1 = _q_f1; \
R##_f0 = _q_f0 | ((_r_f1 | _r_f0) != 0); \
/* adjust so answer is normalized again. I'm not sure what the \
* final sz param should be. In practice it's never used since \
* N is 1 which is always going to be < _FP_W_TYPE_SIZE... \
*/ \
/* _FP_FRAC_SRS_2(R,1,_FP_WFRACBITS_##fs); */ \
} while (0)
#define _FP_DIV_MEAT_2_gmp(fs, R, X, Y) \
do { \
_FP_W_TYPE _x[4], _y[2], _z[4]; \
_y[0] = Y##_f0; _y[1] = Y##_f1; \
_x[0] = _x[3] = 0; \
if (_FP_FRAC_GT_2(X, Y)) \
{ \
R##_e++; \
_x[1] = (X##_f0 << (_FP_WFRACBITS-1 - _FP_W_TYPE_SIZE) | \
X##_f1 >> (_FP_W_TYPE_SIZE - \
(_FP_WFRACBITS-1 - _FP_W_TYPE_SIZE))); \
_x[2] = X##_f1 << (_FP_WFRACBITS-1 - _FP_W_TYPE_SIZE); \
} \
else \
{ \
_x[1] = (X##_f0 << (_FP_WFRACBITS - _FP_W_TYPE_SIZE) | \
X##_f1 >> (_FP_W_TYPE_SIZE - \
(_FP_WFRACBITS - _FP_W_TYPE_SIZE))); \
_x[2] = X##_f1 << (_FP_WFRACBITS - _FP_W_TYPE_SIZE); \
} \
\
(void) mpn_divrem (_z, 0, _x, 4, _y, 2); \
R##_f1 = _z[1]; \
R##_f0 = _z[0] | ((_x[0] | _x[1]) != 0); \
} while (0)
/*
* Square root algorithms:
* We have just one right now, maybe Newton approximation
* should be added for those machines where division is fast.
*/
#define _FP_SQRT_MEAT_2(R, S, T, X, q) \
do { \
while (q) \
{ \
T##_f1 = S##_f1 + q; \
if (T##_f1 <= X##_f1) \
{ \
S##_f1 = T##_f1 + q; \
X##_f1 -= T##_f1; \
R##_f1 += q; \
} \
_FP_FRAC_SLL_2(X, 1); \
q >>= 1; \
} \
q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
while (q) \
{ \
T##_f0 = S##_f0 + q; \
T##_f1 = S##_f1; \
if (T##_f1 < X##_f1 || \
(T##_f1 == X##_f1 && T##_f0 < X##_f0)) \
{ \
S##_f0 = T##_f0 + q; \
if (((_FP_WS_TYPE)T##_f0) < 0 && \
((_FP_WS_TYPE)S##_f0) >= 0) \
S##_f1++; \
_FP_FRAC_SUB_2(X, X, T); \
R##_f0 += q; \
} \
_FP_FRAC_SLL_2(X, 1); \
q >>= 1; \
} \
} while (0)
/*
* Assembly/disassembly for converting to/from integral types.
* No shifting or overflow handled here.
*/
#define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \
do { \
if (rsize <= _FP_W_TYPE_SIZE) \
r = X##_f0; \
else \
{ \
r = X##_f1; \
r <<= _FP_W_TYPE_SIZE; \
r += X##_f0; \
} \
} while (0)
#define _FP_FRAC_DISASSEMBLE_2(X, r, rsize) \
do { \
X##_f0 = r; \
X##_f1 = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
} while (0)
/*
* Convert FP values between word sizes
*/
#define _FP_FRAC_CONV_1_2(dfs, sfs, D, S) \
do { \
_FP_FRAC_SRS_2(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \
_FP_WFRACBITS_##sfs); \
D##_f = S##_f0; \
} while (0)
#define _FP_FRAC_CONV_2_1(dfs, sfs, D, S) \
do { \
D##_f0 = S##_f; \
D##_f1 = 0; \
_FP_FRAC_SLL_2(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \
} while (0)
arch/powerpc/math-emu/op-4.h 已删除 100644 → 0
浏览文件 @ a969e76a
/*
* Basic four-word fraction declaration and manipulation.
*
* When adding quadword support for 32 bit machines, we need
* to be a little careful as double multiply uses some of these
* macros: (in op-2.h)
* _FP_MUL_MEAT_2_wide() uses _FP_FRAC_DECL_4, _FP_FRAC_WORD_4,
* _FP_FRAC_ADD_4, _FP_FRAC_SRS_4
* _FP_MUL_MEAT_2_gmp() uses _FP_FRAC_SRS_4 (and should use
* _FP_FRAC_DECL_4: it appears to be broken and is not used
* anywhere anyway. )
*
* I've now fixed all the macros that were here from the sparc64 code.
* [*none* of the shift macros were correct!] -- PMM 02/1998
*
* The only quadword stuff that remains to be coded is:
* 1) the conversion to/from ints, which requires
* that we check (in op-common.h) that the following do the right thing
* for quadwords: _FP_TO_INT(Q,4,r,X,rsz,rsg), _FP_FROM_INT(Q,4,X,r,rs,rt)
* 2) multiply, divide and sqrt, which require:
* _FP_MUL_MEAT_4_*(R,X,Y), _FP_DIV_MEAT_4_*(R,X,Y), _FP_SQRT_MEAT_4(R,S,T,X,q),
* This also needs _FP_MUL_MEAT_Q and _FP_DIV_MEAT_Q to be defined to
* some suitable _FP_MUL_MEAT_4_* macros in sfp-machine.h.
* [we're free to choose whatever FP_MUL_MEAT_4_* macros we need for
* these; they are used nowhere else. ]
*/
#define _FP_FRAC_DECL_4(X) _FP_W_TYPE X##_f[4]
#define _FP_FRAC_COPY_4(D,S) \
(D##_f[0] = S##_f[0], D##_f[1] = S##_f[1], \
D##_f[2] = S##_f[2], D##_f[3] = S##_f[3])
/* The _FP_FRAC_SET_n(X,I) macro is intended for use with another
* macro such as _FP_ZEROFRAC_n which returns n comma separated values.
* The result is that we get an expansion of __FP_FRAC_SET_n(X,I0,I1,I2,I3)
* which just assigns the In values to the array X##_f[].
* This is why the number of parameters doesn't appear to match
* at first glance... -- PMM
*/
#define _FP_FRAC_SET_4(X,I) __FP_FRAC_SET_4(X, I)
#define _FP_FRAC_HIGH_4(X) (X##_f[3])
#define _FP_FRAC_LOW_4(X) (X##_f[0])
#define _FP_FRAC_WORD_4(X,w) (X##_f[w])
#define _FP_FRAC_SLL_4(X,N) \
do { \
_FP_I_TYPE _up, _down, _skip, _i; \
_skip = (N) / _FP_W_TYPE_SIZE; \
_up = (N) % _FP_W_TYPE_SIZE; \
_down = _FP_W_TYPE_SIZE - _up; \
for (_i = 3; _i > _skip; --_i) \
X##_f[_i] = X##_f[_i-_skip] << _up | X##_f[_i-_skip-1] >> _down; \
/* bugfixed: was X##_f[_i] <<= _up; -- PMM 02/1998 */ \
X##_f[_i] = X##_f[0] << _up; \
for (--_i; _i >= 0; --_i) \
X##_f[_i] = 0; \
} while (0)
/* This one was broken too */
#define _FP_FRAC_SRL_4(X,N) \
do { \
_FP_I_TYPE _up, _down, _skip, _i; \
_skip = (N) / _FP_W_TYPE_SIZE; \
_down = (N) % _FP_W_TYPE_SIZE; \
_up = _FP_W_TYPE_SIZE - _down; \
for (_i = 0; _i < 3-_skip; ++_i) \
X##_f[_i] = X##_f[_i+_skip] >> _down | X##_f[_i+_skip+1] << _up; \
X##_f[_i] = X##_f[3] >> _down; \
for (++_i; _i < 4; ++_i) \
X##_f[_i] = 0; \
} while (0)
/* Right shift with sticky-lsb.
* What this actually means is that we do a standard right-shift,
* but that if any of the bits that fall off the right hand side
* were one then we always set the LSbit.
*/
#define _FP_FRAC_SRS_4(X,N,size) \
do { \
_FP_I_TYPE _up, _down, _skip, _i; \
_FP_W_TYPE _s; \
_skip = (N) / _FP_W_TYPE_SIZE; \
_down = (N) % _FP_W_TYPE_SIZE; \
_up = _FP_W_TYPE_SIZE - _down; \
for (_s = _i = 0; _i < _skip; ++_i) \
_s |= X##_f[_i]; \
_s |= X##_f[_i] << _up; \
/* s is now != 0 if we want to set the LSbit */ \
for (_i = 0; _i < 3-_skip; ++_i) \
X##_f[_i] = X##_f[_i+_skip] >> _down | X##_f[_i+_skip+1] << _up; \
X##_f[_i] = X##_f[3] >> _down; \
for (++_i; _i < 4; ++_i) \
X##_f[_i] = 0; \
/* don't fix the LSB until the very end when we're sure f[0] is stable */ \
X##_f[0] |= (_s != 0); \
} while (0)
#define _FP_FRAC_ADD_4(R,X,Y) \
__FP_FRAC_ADD_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \
X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0])
#define _FP_FRAC_SUB_4(R,X,Y) \
__FP_FRAC_SUB_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \
X##_f[3], X##_f[2], X##_f[1], X##_f[0], \
Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0])
#define _FP_FRAC_ADDI_4(X,I) \
__FP_FRAC_ADDI_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], I)
#define _FP_ZEROFRAC_4 0,0,0,0
#define _FP_MINFRAC_4 0,0,0,1
#define _FP_FRAC_ZEROP_4(X) ((X##_f[0] | X##_f[1] | X##_f[2] | X##_f[3]) == 0)
#define _FP_FRAC_NEGP_4(X) ((_FP_WS_TYPE)X##_f[3] < 0)
#define _FP_FRAC_OVERP_4(fs,X) (X##_f[0] & _FP_OVERFLOW_##fs)
#define _FP_FRAC_EQ_4(X,Y) \
(X##_f[0] == Y##_f[0] && X##_f[1] == Y##_f[1] \
&& X##_f[2] == Y##_f[2] && X##_f[3] == Y##_f[3])
#define _FP_FRAC_GT_4(X,Y) \
(X##_f[3] > Y##_f[3] || \
(X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \
(X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \
(X##_f[1] == Y##_f[1] && X##_f[0] > Y##_f[0]) \
)) \
)) \
)
#define _FP_FRAC_GE_4(X,Y) \
(X##_f[3] > Y##_f[3] || \
(X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \
(X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \
(X##_f[1] == Y##_f[1] && X##_f[0] >= Y##_f[0]) \
)) \
)) \
)
#define _FP_FRAC_CLZ_4(R,X) \
do { \
if (X##_f[3]) \
{ \
__FP_CLZ(R,X##_f[3]); \
} \
else if (X##_f[2]) \
{ \
__FP_CLZ(R,X##_f[2]); \
R += _FP_W_TYPE_SIZE; \
} \
else if (X##_f[1]) \
{ \
__FP_CLZ(R,X##_f[2]); \
R += _FP_W_TYPE_SIZE*2; \
} \
else \
{ \
__FP_CLZ(R,X##_f[0]); \
R += _FP_W_TYPE_SIZE*3; \
} \
} while(0)
#define _FP_UNPACK_RAW_4(fs, X, val) \
do { \
union _FP_UNION_##fs _flo; _flo.flt = (val); \
X##_f[0] = _flo.bits.frac0; \
X##_f[1] = _flo.bits.frac1; \
X##_f[2] = _flo.bits.frac2; \
X##_f[3] = _flo.bits.frac3; \
X##_e = _flo.bits.exp; \
X##_s = _flo.bits.sign; \
} while (0)
#define _FP_PACK_RAW_4(fs, val, X) \
do { \
union _FP_UNION_##fs _flo; \
_flo.bits.frac0 = X##_f[0]; \
_flo.bits.frac1 = X##_f[1]; \
_flo.bits.frac2 = X##_f[2]; \
_flo.bits.frac3 = X##_f[3]; \
_flo.bits.exp = X##_e; \
_flo.bits.sign = X##_s; \
(val) = _flo.flt; \
} while (0)
/*
* Internals
*/
#define __FP_FRAC_SET_4(X,I3,I2,I1,I0) \
(X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0)
#ifndef __FP_FRAC_ADD_4
#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
do { \
int _c1, _c2, _c3; \
r0 = x0 + y0; \
_c1 = r0 < x0; \
r1 = x1 + y1; \
_c2 = r1 < x1; \
r1 += _c1; \
_c2 |= r1 < _c1; \
r2 = x2 + y2; \
_c3 = r2 < x2; \
r2 += _c2; \
_c3 |= r2 < _c2; \
r3 = x3 + y3 + _c3; \
} while (0)
#endif
#ifndef __FP_FRAC_SUB_4
#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
do { \
int _c1, _c2, _c3; \
r0 = x0 - y0; \
_c1 = r0 > x0; \
r1 = x1 - y1; \
_c2 = r1 > x1; \
r1 -= _c1; \
_c2 |= r1 > _c1; \
r2 = x2 - y2; \
_c3 = r2 > x2; \
r2 -= _c2; \
_c3 |= r2 > _c2; \
r3 = x3 - y3 - _c3; \
} while (0)
#endif
#ifndef __FP_FRAC_ADDI_4
/* I always wanted to be a lisp programmer :-> */
#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \
(x3 += ((x2 += ((x1 += ((x0 += i) < x0)) < x1) < x2)))
#endif
/* Convert FP values between word sizes. This appears to be more
* complicated than I'd have expected it to be, so these might be
* wrong... These macros are in any case somewhat bogus because they
* use information about what various FRAC_n variables look like
* internally [eg, that 2 word vars are X_f0 and x_f1]. But so do
* the ones in op-2.h and op-1.h.
*/
#define _FP_FRAC_CONV_1_4(dfs, sfs, D, S) \
do { \
_FP_FRAC_SRS_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \
_FP_WFRACBITS_##sfs); \
D##_f = S##_f[0]; \
} while (0)
#define _FP_FRAC_CONV_2_4(dfs, sfs, D, S) \
do { \
_FP_FRAC_SRS_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \
_FP_WFRACBITS_##sfs); \
D##_f0 = S##_f[0]; \
D##_f1 = S##_f[1]; \
} while (0)
/* Assembly/disassembly for converting to/from integral types.
* No shifting or overflow handled here.
*/
/* Put the FP value X into r, which is an integer of size rsize. */
#define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \
do { \
if (rsize <= _FP_W_TYPE_SIZE) \
r = X##_f[0]; \
else if (rsize <= 2*_FP_W_TYPE_SIZE) \
{ \
r = X##_f[1]; \
r <<= _FP_W_TYPE_SIZE; \
r += X##_f[0]; \
} \
else \
{ \
/* I'm feeling lazy so we deal with int == 3words (implausible)*/ \
/* and int == 4words as a single case. */ \
r = X##_f[3]; \
r <<= _FP_W_TYPE_SIZE; \
r += X##_f[2]; \
r <<= _FP_W_TYPE_SIZE; \
r += X##_f[1]; \
r <<= _FP_W_TYPE_SIZE; \
r += X##_f[0]; \
} \
} while (0)
/* "No disassemble Number Five!" */
/* move an integer of size rsize into X's fractional part. We rely on
* the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid
* having to mask the values we store into it.
*/
#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \
do { \
X##_f[0] = r; \
X##_f[1] = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
X##_f[2] = (rsize <= 2*_FP_W_TYPE_SIZE ? 0 : r >> 2*_FP_W_TYPE_SIZE); \
X##_f[3] = (rsize <= 3*_FP_W_TYPE_SIZE ? 0 : r >> 3*_FP_W_TYPE_SIZE); \
} while (0)
#define _FP_FRAC_CONV_4_1(dfs, sfs, D, S) \
do { \
D##_f[0] = S##_f; \
D##_f[1] = D##_f[2] = D##_f[3] = 0; \
_FP_FRAC_SLL_4(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \
} while (0)
#define _FP_FRAC_CONV_4_2(dfs, sfs, D, S) \
do { \
D##_f[0] = S##_f0; \
D##_f[1] = S##_f1; \
D##_f[2] = D##_f[3] = 0; \
_FP_FRAC_SLL_4(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \
} while (0)
/* FIXME! This has to be written */
#define _FP_SQRT_MEAT_4(R, S, T, X, q)
arch/powerpc/math-emu/op-common.h 已删除 100644 → 0
浏览文件 @ a969e76a
此差异已折叠。
arch/powerpc/math-emu/single.h 已删除 100644 → 0
浏览文件 @ a969e76a
/*
* Definitions for IEEE Single Precision
*/
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
#define _FP_FRACBITS_S 24
#define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S)
#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
#define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S)
#define _FP_EXPBITS_S 8
#define _FP_EXPBIAS_S 127
#define _FP_EXPMAX_S 255
#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2))
#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
chosen by the target machine. */
union _FP_UNION_S
{
float flt;
struct {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_S;
unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
#else
unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
unsigned exp : _FP_EXPBITS_S;
unsigned sign : 1;
#endif
} bits __attribute__((packed));
};
#define FP_DECL_S(X) _FP_DECL(1,X)
#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val)
#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X)
#define FP_UNPACK_S(X,val) \
do { \
_FP_UNPACK_RAW_1(S,X,val); \
_FP_UNPACK_CANONICAL(S,1,X); \
} while (0)
#define FP_PACK_S(val,X) \
do { \
_FP_PACK_CANONICAL(S,1,X); \
_FP_PACK_RAW_1(S,val,X); \
} while (0)
#define FP_NEG_S(R,X) _FP_NEG(S,1,R,X)
#define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y)
#define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y)
#define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y)
#define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y)
#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X)
#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un)
#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y)
#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg)
#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt)
arch/powerpc/math-emu/soft-fp.h 已删除 100644 → 0
浏览文件 @ a969e76a
#ifndef SOFT_FP_H
#define SOFT_FP_H
#include "sfp-machine.h"
#define _FP_WORKBITS 3
#define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3)
#define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2)
#define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1)
#define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0)
#ifndef FP_RND_NEAREST
# define FP_RND_NEAREST 0
# define FP_RND_ZERO 1
# define FP_RND_PINF 2
# define FP_RND_MINF 3
#ifndef FP_ROUNDMODE
# define FP_ROUNDMODE FP_RND_NEAREST
#endif
#endif
#define _FP_ROUND_NEAREST(wc, X) \
({ int __ret = 0; \
int __frac = _FP_FRAC_LOW_##wc(X) & 15; \
if (__frac & 7) { \
__ret = EFLAG_INEXACT; \
if ((__frac & 7) != _FP_WORK_ROUND) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
else if (__frac & _FP_WORK_LSB) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
} \
__ret; \
})
#define _FP_ROUND_ZERO(wc, X) \
({ int __ret = 0; \
if (_FP_FRAC_LOW_##wc(X) & 7) \
__ret = EFLAG_INEXACT; \
__ret; \
})
#define _FP_ROUND_PINF(wc, X) \
({ int __ret = EFLAG_INEXACT; \
if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
else __ret = 0; \
__ret; \
})
#define _FP_ROUND_MINF(wc, X) \
({ int __ret = EFLAG_INEXACT; \
if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
_FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
else __ret = 0; \
__ret; \
})
#define _FP_ROUND(wc, X) \
({ int __ret = 0; \
switch (FP_ROUNDMODE) \
{ \
case FP_RND_NEAREST: \
__ret |= _FP_ROUND_NEAREST(wc,X); \
break; \
case FP_RND_ZERO: \
__ret |= _FP_ROUND_ZERO(wc,X); \
break; \
case FP_RND_PINF: \
__ret |= _FP_ROUND_PINF(wc,X); \
break; \
case FP_RND_MINF: \
__ret |= _FP_ROUND_MINF(wc,X); \
break; \
}; \
__ret; \
})
#define FP_CLS_NORMAL 0
#define FP_CLS_ZERO 1
#define FP_CLS_INF 2
#define FP_CLS_NAN 3
#define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y))
#include "op-1.h"
#include "op-2.h"
#include "op-4.h"
#include "op-common.h"
/* Sigh. Silly things longlong.h needs. */
#define UWtype _FP_W_TYPE
#define W_TYPE_SIZE _FP_W_TYPE_SIZE
typedef int SItype __attribute__((mode(SI)));
typedef int DItype __attribute__((mode(DI)));
typedef unsigned int USItype __attribute__((mode(SI)));
typedef unsigned int UDItype __attribute__((mode(DI)));
#if _FP_W_TYPE_SIZE == 32
typedef unsigned int UHWtype __attribute__((mode(HI)));
#elif _FP_W_TYPE_SIZE == 64
typedef USItype UHWtype;
#endif
#endif
arch/powerpc/math-emu/stfs.c
浏览文件 @ d2b194ed
......@@ -2,23 +2,24 @@
#include <linux/errno.h>
#include <asm/uaccess.h>
#include "soft-fp.h"
#include "double.h"
#include "single.h"
#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>
int
stfs(void *frS, void *ea)
{
FP_DECL_D(A);
FP_DECL_S(R);
FP_DECL_EX;
float f;
int err;
#ifdef DEBUG
printk("%s: S %p, ea %p\n", __func__, frS, ea);
#endif
__FP_UNPACK_D(A, frS);
FP_UNPACK_DP(A, frS);
#ifdef DEBUG
printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
......@@ -30,12 +31,12 @@ stfs(void *frS, void *ea)
printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c);
#endif
err = _FP_PACK_CANONICAL(S, 1, R);
if (!err || !__FPU_TRAP_P(err)) {
__FP_PACK_RAW_1(S, &f, R);
_FP_PACK_CANONICAL(S, 1, R);
if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) {
_FP_PACK_RAW_1_P(S, &f, R);
if (copy_to_user(ea, &f, sizeof(float)))
return -EFAULT;
}
return err;
return FP_CUR_EXCEPTIONS;
}
arch/powerpc/math-emu/types.c 已删除 100644 → 0
浏览文件 @ a969e76a
#include "soft-fp.h"
#include "double.h"
#include "single.h"
void
fp_unpack_d(long *_s, unsigned long *_f1, unsigned long *_f0,
long *_e, long *_c, void *val)
{
FP_DECL_D(X);
__FP_UNPACK_RAW_2(D, X, val);
_FP_UNPACK_CANONICAL(D, 2, X);
*_s = X_s;
*_f1 = X_f1;
*_f0 = X_f0;
*_e = X_e;
*_c = X_c;
}
int
fp_pack_d(void *val, long X_s, unsigned long X_f1,
unsigned long X_f0, long X_e, long X_c)
{
int exc;
exc = _FP_PACK_CANONICAL(D, 2, X);
if (!exc || !__FPU_TRAP_P(exc))
__FP_PACK_RAW_2(D, val, X);
return exc;
}
int
fp_pack_ds(void *val, long X_s, unsigned long X_f1,
unsigned long X_f0, long X_e, long X_c)
{
FP_DECL_S(__X);
int exc;
FP_CONV(S, D, 1, 2, __X, X);
exc = _FP_PACK_CANONICAL(S, 1, __X);
if (!exc || !__FPU_TRAP_P(exc)) {
_FP_UNPACK_CANONICAL(S, 1, __X);
FP_CONV(D, S, 2, 1, X, __X);
exc |= _FP_PACK_CANONICAL(D, 2, X);
if (!exc || !__FPU_TRAP_P(exc))
__FP_PACK_RAW_2(D, val, X);
}
return exc;
}
arch/powerpc/math-emu/udivmodti4.c
浏览文件 @ d2b194ed
/* This has so very few changes over libgcc2's __udivmoddi4 it isn't funny. */
#include "soft-fp.h"
#include <math-emu/soft-fp.h>
#undef count_leading_zeros
#define count_leading_zeros __FP_CLZ
......
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