lxdream 0.9.1| filename | test/math.s |
| changeset | 185:6755a04c447f |
| author | nkeynes |
| date | Wed Jan 17 21:28:43 2007 +0000 (17 years ago) |
| permissions | -rw-r--r-- |
| last change | Remove icount from the CPU description |
| view | annotate | diff | log | raw |
1 #
2 # Assembler functions to invoke the non-standard FP operations
3 #
4 .global _clear_fpscr
5 _clear_fpscr:
6 xor r0, r0
7 lds r0, fpscr
8 rts
9 nop
11 .global _get_fpscr
12 _get_fpscr:
13 rts
14 sts fpscr, r0
16 .global _set_fpscr
17 _set_fpscr:
18 rts
19 lds r4, fpscr
21 .global _do_fsca
22 _do_fsca:
23 sts fpscr, r0
24 mov #0x08, r1
25 shll16 r1
26 not r1, r1
27 and r0, r1
28 lds r1, fpscr
29 lds r4, fpul
30 .word 0xF0FD
31 fmov fr0, @r5
32 fmov fr1, @r6
33 xor r0,r0
34 rts
35 lds r1, fpscr
37 .global _do_fsrra
38 _do_fsrra:
39 sts fpscr, r0
40 mov #0x08, r1
41 shll16 r1
42 not r1, r1
43 and r0, r1
44 lds r1, fpscr
45 fmov fr4, fr0
46 .word 0xF07D
47 rts
48 lds r0, fpscr
50 .global _do_fipr
51 _do_fipr:
52 sts fpscr, r0
53 mov #0x08, r1
54 shll16 r1
55 not r1, r1
56 and r0, r1
57 lds r1, fpscr
58 fmov.s @r4+, fr0
59 fmov.s @r4+, fr1
60 fmov.s @r4+, fr2
61 fmov.s @r4+, fr3
62 fmov.s @r5+, fr4
63 fmov.s @r5+, fr5
64 fmov.s @r5+, fr6
65 fmov.s @r5+, fr7
66 fipr fv0, fv4
67 lds r0, fpscr
68 rts
69 fmov fr7, fr0
71 .global _do_fipr2
72 _do_fipr2:
73 sts fpscr, r0
74 mov #0x08, r1
75 shll16 r1
76 not r1, r1
77 and r0, r1
78 lds r1, fpscr
79 fschg
80 fmov @r4+, dr0
81 fmov @r4+, dr2
82 fmov @r5+, dr4
83 fmov @r5+, dr6
84 fschg
85 fipr fv0, fv4
86 lds r0, fpscr
87 rts
88 fmov fr7, fr0
90 .global _do_ftrv
91 _do_ftrv:
92 sts fpscr, r0
93 mov #0x08, r1
94 shll16 r1
95 not r1, r1
96 and r0, r1
97 lds r1, fpscr
98 fschg
99 fmov @r4+, xd0
100 fmov @r4+, xd2
101 fmov @r4+, xd4
102 fmov @r4+, xd6
103 fmov @r4+, xd8
104 fmov @r4+, xd10
105 fmov @r4+, xd12
106 fmov @r4, xd14
107 fmov @r5+, dr0
108 fmov @r5, dr2
109 ftrv xmtrx, fv0
110 fmov dr2, @r5
111 fmov dr0, @-r5
112 fschg
113 rts
114 lds r0, fpscr
116 .global _do_ftrv2
117 _do_ftrv2:
118 sts fpscr, r0
119 mov #0x08, r1
120 shll16 r1
121 not r1, r1
122 and r0, r1
123 lds r1, fpscr
124 fschg
125 frchg
126 fmov @r4+, dr0
127 fmov @r4+, dr2
128 fmov @r4+, dr4
129 fmov @r4+, dr6
130 fmov @r4+, dr8
131 fmov @r4+, dr10
132 fmov @r4+, dr12
133 fmov @r4+, dr14
134 frchg
135 fmov @r5+, dr0
136 fmov @r5, dr2
137 ftrv xmtrx, fv0
138 fmov dr2, @-r5
139 fmov dr0, @-r5
140 fschg
141 rts
142 lds r0, fpscr
.