146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
/*-
|
|
* Copyright (c) 2002 Jake Burkholder.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <machine/fsr.h>
|
|
|
|
#include "fpu_emu.h"
|
|
#include "fpu_extern.h"
|
|
|
|
#define _QP_OP(op) \
|
|
void _Qp_ ## op(u_int *c, u_int *a, u_int *b); \
|
|
void \
|
|
_Qp_ ## op(u_int *c, u_int *a, u_int *b) \
|
|
{ \
|
|
struct fpemu fe; \
|
|
struct fpn *r; \
|
|
__asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
|
|
fe.fe_f1.fp_sign = a[0] >> 31; \
|
|
fe.fe_f1.fp_sticky = 0; \
|
|
fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]); \
|
|
fe.fe_f2.fp_sign = b[0] >> 31; \
|
|
fe.fe_f2.fp_sticky = 0; \
|
|
fe.fe_f2.fp_class = __fpu_qtof(&fe.fe_f2, b[0], b[1], b[2], b[3]); \
|
|
r = __fpu_ ## op(&fe); \
|
|
c[0] = __fpu_ftoq(&fe, r, c); \
|
|
}
|
|
|
|
#define _QP_TTOQ(qname, fname, ntype, atype, ...) \
|
|
void _Qp_ ## qname ## toq(u_int *c, ntype n); \
|
|
void \
|
|
_Qp_ ## qname ## toq(u_int *c, ntype n) \
|
|
{ \
|
|
struct fpemu fe; \
|
|
union { atype a[2]; ntype n; } u = { .n = n }; \
|
|
__asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
|
|
fe.fe_f1.fp_sign = u.a[0] >> 31; \
|
|
fe.fe_f1.fp_sticky = 0; \
|
|
fe.fe_f1.fp_class = __fpu_ ## fname ## tof(&fe.fe_f1, __VA_ARGS__); \
|
|
c[0] = __fpu_ftoq(&fe, &fe.fe_f1, c); \
|
|
}
|
|
|
|
#define _QP_QTOT(qname, fname, type, ...) \
|
|
type _Qp_qto ## qname(u_int *c); \
|
|
type \
|
|
_Qp_qto ## qname(u_int *c) \
|
|
{ \
|
|
struct fpemu fe; \
|
|
union { u_int a; type n; } u; \
|
|
__asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
|
|
fe.fe_f1.fp_sign = c[0] >> 31; \
|
|
fe.fe_f1.fp_sticky = 0; \
|
|
fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, c[0], c[1], c[2], c[3]); \
|
|
u.a = __fpu_fto ## fname(&fe, &fe.fe_f1, ## __VA_ARGS__); \
|
|
return (u.n); \
|
|
}
|
|
|
|
#define FCC_EQ(fcc) ((fcc) == FSR_CC_EQ)
|
|
#define FCC_GE(fcc) ((fcc) == FSR_CC_EQ || (fcc) == FSR_CC_GT)
|
|
#define FCC_GT(fcc) ((fcc) == FSR_CC_GT)
|
|
#define FCC_LE(fcc) ((fcc) == FSR_CC_EQ || (fcc) == FSR_CC_LT)
|
|
#define FCC_LT(fcc) ((fcc) == FSR_CC_LT)
|
|
#define FCC_NE(fcc) ((fcc) != FSR_CC_EQ)
|
|
|
|
#define _QP_CMP(name, cmpe, test) \
|
|
int _Qp_f ## name(u_int *a, u_int *b) ; \
|
|
int \
|
|
_Qp_f ## name(u_int *a, u_int *b) \
|
|
{ \
|
|
struct fpemu fe; \
|
|
__asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
|
|
fe.fe_f1.fp_sign = a[0] >> 31; \
|
|
fe.fe_f1.fp_sticky = 0; \
|
|
fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]); \
|
|
fe.fe_f2.fp_sign = b[0] >> 31; \
|
|
fe.fe_f2.fp_sticky = 0; \
|
|
fe.fe_f2.fp_class = __fpu_qtof(&fe.fe_f2, b[0], b[1], b[2], b[3]); \
|
|
__fpu_compare(&fe, cmpe, 0); \
|
|
return (test(FSR_GET_FCC0(fe.fe_fsr))); \
|
|
}
|
|
|
|
void _Qp_sqrt(u_int *c, u_int *a);
|
|
void
|
|
_Qp_sqrt(u_int *c, u_int *a)
|
|
{
|
|
struct fpemu fe;
|
|
struct fpn *r;
|
|
__asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :);
|
|
fe.fe_f1.fp_sign = a[0] >> 31;
|
|
fe.fe_f1.fp_sticky = 0;
|
|
fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]);
|
|
r = __fpu_sqrt(&fe);
|
|
c[0] = __fpu_ftoq(&fe, r, c);
|
|
}
|
|
|
|
_QP_OP(add)
|
|
_QP_OP(div)
|
|
_QP_OP(mul)
|
|
_QP_OP(sub)
|
|
|
|
_QP_TTOQ(d, d, double, u_int, u.a[0], u.a[1])
|
|
_QP_TTOQ(i, i, int, u_int, u.a[0])
|
|
_QP_TTOQ(s, s, float, u_int, u.a[0])
|
|
_QP_TTOQ(x, x, long, u_long, u.a[0])
|
|
_QP_TTOQ(ui, i, u_int, u_int, u.a[0])
|
|
_QP_TTOQ(ux, x, u_long, u_long, u.a[0])
|
|
|
|
_QP_QTOT(d, d, double, &u.a)
|
|
_QP_QTOT(i, i, int)
|
|
_QP_QTOT(s, s, float)
|
|
_QP_QTOT(x, x, long, &u.a)
|
|
_QP_QTOT(ui, i, u_int)
|
|
_QP_QTOT(ux, x, u_long, &u.a)
|
|
|
|
_QP_CMP(eq, 0, FCC_EQ)
|
|
_QP_CMP(ge, 0, FCC_GE)
|
|
_QP_CMP(gt, 0, FCC_GT)
|
|
_QP_CMP(le, 0, FCC_LE)
|
|
_QP_CMP(lt, 0, FCC_LT)
|
|
_QP_CMP(ne, 0, FCC_NE)
|