2 * Copyright (c) 2002 Jake Burkholder.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <machine/fsr.h>
34 #include "fpu_extern.h"
37 void _Qp_ ## op(u_int *c, u_int *a, u_int *b); \
39 _Qp_ ## op(u_int *c, u_int *a, u_int *b) \
43 __asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
45 fe.fe_f1.fp_sign = a[0] >> 31; \
46 fe.fe_f1.fp_sticky = 0; \
47 fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]); \
48 fe.fe_f2.fp_sign = b[0] >> 31; \
49 fe.fe_f2.fp_sticky = 0; \
50 fe.fe_f2.fp_class = __fpu_qtof(&fe.fe_f2, b[0], b[1], b[2], b[3]); \
51 r = __fpu_ ## op(&fe); \
52 c[0] = __fpu_ftoq(&fe, r, c); \
53 fe.fe_fsr |= fe.fe_cx << FSR_AEXC_SHIFT; \
54 __asm __volatile("ldx %0, %%fsr" : : "m" (fe.fe_fsr)); \
57 #define _QP_TTOQ(qname, fname, ntype, signpos, atype, ...) \
58 void _Qp_ ## qname ## toq(u_int *c, ntype n); \
60 _Qp_ ## qname ## toq(u_int *c, ntype n) \
63 union { atype a[2]; ntype n; } u = { .n = n }; \
64 __asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
66 fe.fe_f1.fp_sign = (signpos >= 0) ? u.a[0] >> signpos : 0; \
67 fe.fe_f1.fp_sticky = 0; \
68 fe.fe_f1.fp_class = __fpu_ ## fname ## tof(&fe.fe_f1, __VA_ARGS__); \
69 c[0] = __fpu_ftoq(&fe, &fe.fe_f1, c); \
70 fe.fe_fsr |= fe.fe_cx << FSR_AEXC_SHIFT; \
71 __asm __volatile("ldx %0, %%fsr" : : "m" (fe.fe_fsr)); \
74 #define _QP_QTOT(qname, fname, type, ...) \
75 type _Qp_qto ## qname(u_int *c); \
77 _Qp_qto ## qname(u_int *c) \
80 union { u_int a; type n; } u; \
81 __asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
83 fe.fe_f1.fp_sign = c[0] >> 31; \
84 fe.fe_f1.fp_sticky = 0; \
85 fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, c[0], c[1], c[2], c[3]); \
86 u.a = __fpu_fto ## fname(&fe, &fe.fe_f1, ## __VA_ARGS__); \
87 fe.fe_fsr |= fe.fe_cx << FSR_AEXC_SHIFT; \
88 __asm __volatile("ldx %0, %%fsr" : : "m" (fe.fe_fsr)); \
92 #define FCC_EQ(fcc) ((fcc) == FSR_CC_EQ)
93 #define FCC_GE(fcc) ((fcc) == FSR_CC_EQ || (fcc) == FSR_CC_GT)
94 #define FCC_GT(fcc) ((fcc) == FSR_CC_GT)
95 #define FCC_LE(fcc) ((fcc) == FSR_CC_EQ || (fcc) == FSR_CC_LT)
96 #define FCC_LT(fcc) ((fcc) == FSR_CC_LT)
97 #define FCC_NE(fcc) ((fcc) != FSR_CC_EQ)
98 #define FCC_ID(fcc) (fcc)
100 #define _QP_CMP(name, cmpe, test) \
101 int _Qp_ ## name(u_int *a, u_int *b) ; \
103 _Qp_ ## name(u_int *a, u_int *b) \
106 __asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :); \
108 fe.fe_f1.fp_sign = a[0] >> 31; \
109 fe.fe_f1.fp_sticky = 0; \
110 fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]); \
111 fe.fe_f2.fp_sign = b[0] >> 31; \
112 fe.fe_f2.fp_sticky = 0; \
113 fe.fe_f2.fp_class = __fpu_qtof(&fe.fe_f2, b[0], b[1], b[2], b[3]); \
114 __fpu_compare(&fe, cmpe, 0); \
115 fe.fe_fsr |= fe.fe_cx << FSR_AEXC_SHIFT; \
116 __asm __volatile("ldx %0, %%fsr" : : "m" (fe.fe_fsr)); \
117 return (test(FSR_GET_FCC0(fe.fe_fsr))); \
120 void _Qp_sqrt(u_int *c, u_int *a);
122 _Qp_sqrt(u_int *c, u_int *a)
126 __asm __volatile("stx %%fsr, %0" : "=m" (fe.fe_fsr) :);
128 fe.fe_f1.fp_sign = a[0] >> 31;
129 fe.fe_f1.fp_sticky = 0;
130 fe.fe_f1.fp_class = __fpu_qtof(&fe.fe_f1, a[0], a[1], a[2], a[3]);
132 c[0] = __fpu_ftoq(&fe, r, c);
133 fe.fe_fsr |= fe.fe_cx << FSR_AEXC_SHIFT;
134 __asm __volatile("ldx %0, %%fsr" : : "m" (fe.fe_fsr));
142 _QP_TTOQ(d, d, double, 31, u_int, u.a[0], u.a[1])
143 _QP_TTOQ(i, i, int, 31, u_int, u.a[0])
144 _QP_TTOQ(s, s, float, 31, u_int, u.a[0])
145 _QP_TTOQ(x, x, long, 63, u_long, u.a[0])
146 _QP_TTOQ(ui, i, u_int, -1, u_int, u.a[0])
147 _QP_TTOQ(ux, x, u_long, -1, u_long, u.a[0])
149 _QP_QTOT(d, d, double, &u.a)
151 _QP_QTOT(s, s, float)
152 _QP_QTOT(x, x, long, &u.a)
153 _QP_QTOT(ui, i, u_int)
154 _QP_QTOT(ux, x, u_long, &u.a)
156 _QP_CMP(feq, 0, FCC_EQ)
157 _QP_CMP(fge, 1, FCC_GE)
158 _QP_CMP(fgt, 1, FCC_GT)
159 _QP_CMP(fle, 1, FCC_LE)
160 _QP_CMP(flt, 1, FCC_LT)
161 _QP_CMP(fne, 0, FCC_NE)
162 _QP_CMP(cmp, 0, FCC_ID)
163 _QP_CMP(cmpe, 1, FCC_ID)