Commit | Line | Data |
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027f891f JH |
1 | /* |
2 | * tbidspram.S | |
3 | * | |
4 | * Copyright (C) 2009, 2012 Imagination Technologies. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it under | |
7 | * the terms of the GNU General Public License version 2 as published by the | |
8 | * Free Software Foundation. | |
9 | * | |
10 | * Explicit state save and restore routines forming part of the thread binary | |
11 | * interface for META processors | |
12 | */ | |
13 | ||
14 | .file "tbidspram.S" | |
15 | ||
16 | /* These aren't generally useful to a user so for now, they arent publically available */ | |
17 | #define _TBIECH_DSPRAM_DUA_S 8 | |
18 | #define _TBIECH_DSPRAM_DUA_BITS 0x7f00 | |
19 | #define _TBIECH_DSPRAM_DUB_S 0 | |
20 | #define _TBIECH_DSPRAM_DUB_BITS 0x007f | |
21 | ||
22 | /* | |
23 | * void *__TBIDspramSaveA( short DspramSizes, void *pExt ) | |
24 | */ | |
25 | .text | |
26 | .balign 4 | |
27 | .global ___TBIDspramSaveA | |
28 | .type ___TBIDspramSaveA,function | |
29 | ___TBIDspramSaveA: | |
30 | ||
31 | SETL [A0StP++], D0.5, D1.5 | |
32 | MOV A0.3, D0Ar2 | |
33 | ||
34 | /* D1Ar1 - Dspram Sizes | |
35 | * A0.4 - Pointer to buffer | |
36 | */ | |
37 | ||
38 | /* Save the specified amount of dspram DUA */ | |
39 | DL MOV D0AR.0, #0 | |
40 | LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUA_S | |
41 | AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUA_BITS >> _TBIECH_DSPRAM_DUA_S) | |
42 | SUB TXRPT, D1Ar1, #1 | |
43 | $L1: | |
44 | DL MOV D0Re0, [D0AR.0++] | |
45 | DL MOV D0Ar6, [D0AR.0++] | |
46 | DL MOV D0Ar4, [D0AR.0++] | |
47 | DL MOV D0.5, [D0AR.0++] | |
48 | MSETL [A0.3++], D0Re0, D0Ar6, D0Ar4, D0.5 | |
49 | ||
50 | BR $L1 | |
51 | ||
52 | GETL D0.5, D1.5, [--A0StP] | |
53 | MOV PC, D1RtP | |
54 | ||
55 | .size ___TBIDspramSaveA,.-___TBIDspramSaveA | |
56 | ||
57 | /* | |
58 | * void *__TBIDspramSaveB( short DspramSizes, void *pExt ) | |
59 | */ | |
60 | .balign 4 | |
61 | .global ___TBIDspramSaveB | |
62 | .type ___TBIDspramSaveB,function | |
63 | ___TBIDspramSaveB: | |
64 | ||
65 | SETL [A0StP++], D0.5, D1.5 | |
66 | MOV A0.3, D0Ar2 | |
67 | ||
68 | /* D1Ar1 - Dspram Sizes | |
69 | * A0.3 - Pointer to buffer | |
70 | */ | |
71 | ||
72 | /* Save the specified amount of dspram DUA */ | |
73 | DL MOV D0BR.0, #0 | |
74 | LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUB_S | |
75 | AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUB_BITS >> _TBIECH_DSPRAM_DUB_S) | |
76 | SUB TXRPT, D1Ar1, #1 | |
77 | $L2: | |
78 | DL MOV D0Re0, [D0BR.0++] | |
79 | DL MOV D0Ar6, [D0BR.0++] | |
80 | DL MOV D0Ar4, [D0BR.0++] | |
81 | DL MOV D0.5, [D0BR.0++] | |
82 | MSETL [A0.3++], D0Re0, D0Ar6, D0Ar4, D0.5 | |
83 | ||
84 | BR $L2 | |
85 | ||
86 | GETL D0.5, D1.5, [--A0StP] | |
87 | MOV PC, D1RtP | |
88 | ||
89 | .size ___TBIDspramSaveB,.-___TBIDspramSaveB | |
90 | ||
91 | /* | |
92 | * void *__TBIDspramRestoreA( short DspramSizes, void *pExt ) | |
93 | */ | |
94 | .balign 4 | |
95 | .global ___TBIDspramRestoreA | |
96 | .type ___TBIDspramRestoreA,function | |
97 | ___TBIDspramRestoreA: | |
98 | ||
99 | SETL [A0StP++], D0.5, D1.5 | |
100 | MOV A0.3, D0Ar2 | |
101 | ||
102 | /* D1Ar1 - Dspram Sizes | |
103 | * A0.3 - Pointer to buffer | |
104 | */ | |
105 | ||
106 | /* Restore the specified amount of dspram DUA */ | |
107 | DL MOV D0AW.0, #0 | |
108 | LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUA_S | |
109 | AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUA_BITS >> _TBIECH_DSPRAM_DUA_S) | |
110 | SUB TXRPT, D1Ar1, #1 | |
111 | $L3: | |
112 | MGETL D0Re0, D0Ar6, D0Ar4, D0.5, [A0.3++] | |
113 | DL MOV [D0AW.0++], D0Re0 | |
114 | DL MOV [D0AW.0++], D0Ar6 | |
115 | DL MOV [D0AW.0++], D0Ar4 | |
116 | DL MOV [D0AW.0++], D0.5 | |
117 | ||
118 | BR $L3 | |
119 | ||
120 | GETL D0.5, D1.5, [--A0StP] | |
121 | MOV PC, D1RtP | |
122 | ||
123 | .size ___TBIDspramRestoreA,.-___TBIDspramRestoreA | |
124 | ||
125 | /* | |
126 | * void *__TBIDspramRestoreB( short DspramSizes, void *pExt ) | |
127 | */ | |
128 | .balign 4 | |
129 | .global ___TBIDspramRestoreB | |
130 | .type ___TBIDspramRestoreB,function | |
131 | ___TBIDspramRestoreB: | |
132 | ||
133 | SETL [A0StP++], D0.5, D1.5 | |
134 | MOV A0.3, D0Ar2 | |
135 | ||
136 | /* D1Ar1 - Dspram Sizes | |
137 | * A0.3 - Pointer to buffer | |
138 | */ | |
139 | ||
140 | /* Restore the specified amount of dspram DUA */ | |
141 | DL MOV D0BW.0, #0 | |
142 | LSR D1Ar1, D1Ar1, #_TBIECH_DSPRAM_DUB_S | |
143 | AND D1Ar1, D1Ar1, #(_TBIECH_DSPRAM_DUB_BITS >> _TBIECH_DSPRAM_DUB_S) | |
144 | SUB TXRPT, D1Ar1, #1 | |
145 | $L4: | |
146 | MGETL D0Re0, D0Ar6, D0Ar4, D0.5, [A0.3++] | |
147 | DL MOV [D0BW.0++], D0Re0 | |
148 | DL MOV [D0BW.0++], D0Ar6 | |
149 | DL MOV [D0BW.0++], D0Ar4 | |
150 | DL MOV [D0BW.0++], D0.5 | |
151 | ||
152 | BR $L4 | |
153 | ||
154 | GETL D0.5, D1.5, [--A0StP] | |
155 | MOV PC, D1RtP | |
156 | ||
157 | .size ___TBIDspramRestoreB,.-___TBIDspramRestoreB | |
158 | ||
159 | /* | |
160 | * End of tbidspram.S | |
161 | */ |