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/*---------------------------------------------------------------------------+
 |  fpu_arith.c                                                              |
 |                                                                           |
 | Code to implement the FPU register/register arithmetic instructions       |
 |                                                                           |
 | Copyright (C) 1992,1993                                                   |
 |                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
 |                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au    |
 |                                                                           |
 |                                                                           |
 +---------------------------------------------------------------------------*/
 
#include "fpu_system.h"
#include "fpu_emu.h"
#include "control_w.h"
#include "status_w.h"
 
 
void fadd__()
{
  /* fadd st,st(i) */
  clear_C1();
  reg_add(&st(0), &st(FPU_rm), &st(0), control_word);
}
 
 
void fmul__()
{
  /* fmul st,st(i) */
  clear_C1();
  reg_mul(&st(0), &st(FPU_rm), &st(0), control_word);
}
 
 
 
void fsub__()
{
  /* fsub st,st(i) */
  clear_C1();
  reg_sub(&st(0), &st(FPU_rm), &st(0), control_word);
}
 
 
void fsubr_()
{
  /* fsubr st,st(i) */
  clear_C1();
  reg_sub(&st(FPU_rm), &st(0), &st(0), control_word);
}
 
 
void fdiv__()
{
  /* fdiv st,st(i) */
  clear_C1();
  reg_div(&st(0), &st(FPU_rm), &st(0), control_word);
}
 
 
void fdivr_()
{
  /* fdivr st,st(i) */
  clear_C1();
  reg_div(&st(FPU_rm), &st(0), &st(0), control_word);
}
 
 
 
void fadd_i()
{
  /* fadd st(i),st */
  clear_C1();
  reg_add(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);
}
 
 
void fmul_i()
{
  /* fmul st(i),st */
  clear_C1();
  reg_mul(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);
}
 
 
void fsubri()
{
  /* fsubr st(i),st */
  /* This is the sense of the 80486 manual
     reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word); */
  clear_C1();
  reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);
}
 
 
void fsub_i()
{
  /* fsub st(i),st */
  /* This is the sense of the 80486 manual
     reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word); */
  clear_C1();
  reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word);
}
 
 
void fdivri()
{
  /* fdivr st(i),st */
  clear_C1();
  reg_div(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);
}
 
 
void fdiv_i()
{
  /* fdiv st(i),st */
  clear_C1();
  reg_div(&st(FPU_rm), &st(0), &st(FPU_rm), control_word);
}
 
 
 
void faddp_()
{
  /* faddp st(i),st */
  clear_C1();
  if ( !reg_add(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )
    pop();
}
 
 
void fmulp_()
{
  /* fmulp st(i),st */
  clear_C1();
  if ( !reg_mul(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )
    pop();
}
 
 
 
void fsubrp()
{
  /* fsubrp st(i),st */
  /* This is the sense of the 80486 manual
     reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word); */
  clear_C1();
  if ( !reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )
    pop();
}
 
 
void fsubp_()
{
  /* fsubp st(i),st */
  /* This is the sense of the 80486 manual
     reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word); */
  clear_C1();
  if ( !reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word) )
    pop();
}
 
 
void fdivrp()
{
  /* fdivrp st(i),st */
  clear_C1();
  if ( !reg_div(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )
    pop();
}
 
 
void fdivp_()
{
  /* fdivp st(i),st */
  clear_C1();
  if ( !reg_div(&st(FPU_rm), &st(0), &st(FPU_rm), control_word) )
    pop();
}
 

Line No.	Rev	Author	Line
1	1623	jcastillo	`/*---------------------------------------------------------------------------+`
2			`\| fpu_arith.c \|`
3			`\| \|`
4			`\| Code to implement the FPU register/register arithmetic instructions \|`
5			`\| \|`
6			`\| Copyright (C) 1992,1993 \|`
7			`\| W. Metzenthen, 22 Parker St, Ormond, Vic 3163, \|`
8			`\| Australia. E-mail billm@vaxc.cc.monash.edu.au \|`
9			`\| \|`
10			`\| \|`
11			`+---------------------------------------------------------------------------*/`
12
13			`#include "fpu_system.h"`
14			`#include "fpu_emu.h"`
15			`#include "control_w.h"`
16			`#include "status_w.h"`
17
18
19			`void fadd__()`
20			`{`
21			`/* fadd st,st(i) */`
22			`clear_C1();`
23			`reg_add(&st(0), &st(FPU_rm), &st(0), control_word);`
24			`}`
25
26
27			`void fmul__()`
28			`{`
29			`/* fmul st,st(i) */`
30			`clear_C1();`
31			`reg_mul(&st(0), &st(FPU_rm), &st(0), control_word);`
32			`}`
33
34
35
36			`void fsub__()`
37			`{`
38			`/* fsub st,st(i) */`
39			`clear_C1();`
40			`reg_sub(&st(0), &st(FPU_rm), &st(0), control_word);`
41			`}`
42
43
44			`void fsubr_()`
45			`{`
46			`/* fsubr st,st(i) */`
47			`clear_C1();`
48			`reg_sub(&st(FPU_rm), &st(0), &st(0), control_word);`
49			`}`
50
51
52			`void fdiv__()`
53			`{`
54			`/* fdiv st,st(i) */`
55			`clear_C1();`
56			`reg_div(&st(0), &st(FPU_rm), &st(0), control_word);`
57			`}`
58
59
60			`void fdivr_()`
61			`{`
62			`/* fdivr st,st(i) */`
63			`clear_C1();`
64			`reg_div(&st(FPU_rm), &st(0), &st(0), control_word);`
65			`}`
66
67
68
69			`void fadd_i()`
70			`{`
71			`/* fadd st(i),st */`
72			`clear_C1();`
73			`reg_add(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);`
74			`}`
75
76
77			`void fmul_i()`
78			`{`
79			`/* fmul st(i),st */`
80			`clear_C1();`
81			`reg_mul(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);`
82			`}`
83
84
85			`void fsubri()`
86			`{`
87			`/* fsubr st(i),st */`
88			`/* This is the sense of the 80486 manual`
89			`reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word); */`
90			`clear_C1();`
91			`reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);`
92			`}`
93
94
95			`void fsub_i()`
96			`{`
97			`/* fsub st(i),st */`
98			`/* This is the sense of the 80486 manual`
99			`reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word); */`
100			`clear_C1();`
101			`reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word);`
102			`}`
103
104
105			`void fdivri()`
106			`{`
107			`/* fdivr st(i),st */`
108			`clear_C1();`
109			`reg_div(&st(0), &st(FPU_rm), &st(FPU_rm), control_word);`
110			`}`
111
112
113			`void fdiv_i()`
114			`{`
115			`/* fdiv st(i),st */`
116			`clear_C1();`
117			`reg_div(&st(FPU_rm), &st(0), &st(FPU_rm), control_word);`
118			`}`
119
120
121
122			`void faddp_()`
123			`{`
124			`/* faddp st(i),st */`
125			`clear_C1();`
126			`if ( !reg_add(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )`
127			`pop();`
128			`}`
129
130
131			`void fmulp_()`
132			`{`
133			`/* fmulp st(i),st */`
134			`clear_C1();`
135			`if ( !reg_mul(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )`
136			`pop();`
137			`}`
138
139
140
141			`void fsubrp()`
142			`{`
143			`/* fsubrp st(i),st */`
144			`/* This is the sense of the 80486 manual`
145			`reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word); */`
146			`clear_C1();`
147			`if ( !reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )`
148			`pop();`
149			`}`
150
151
152			`void fsubp_()`
153			`{`
154			`/* fsubp st(i),st */`
155			`/* This is the sense of the 80486 manual`
156			`reg_sub(&st(0), &st(FPU_rm), &st(FPU_rm), control_word); */`
157			`clear_C1();`
158			`if ( !reg_sub(&st(FPU_rm), &st(0), &st(FPU_rm), control_word) )`
159			`pop();`
160			`}`
161
162
163			`void fdivrp()`
164			`{`
165			`/* fdivrp st(i),st */`
166			`clear_C1();`
167			`if ( !reg_div(&st(0), &st(FPU_rm), &st(FPU_rm), control_word) )`
168			`pop();`
169			`}`
170
171
172			`void fdivp_()`
173			`{`
174			`/* fdivp st(i),st */`
175			`clear_C1();`
176			`if ( !reg_div(&st(FPU_rm), &st(0), &st(FPU_rm), control_word) )`
177			`pop();`
178			`}`
179

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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [arch/] [i386/] [math-emu/] [fpu_arith.c] - Blame information for rev 1777