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comparison src/nucleus/hii.c @ 7:0f80e1e4dce4

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src/nucleus: library C code import from FreeNucleus package
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 15 Jul 2018 20:57:33 +0000
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6:8b2a9a374324 7:0f80e1e4dce4
1 /*************************************************************************/
2 /* */
3 /* Copyright Mentor Graphics Corporation 2002 */
4 /* All Rights Reserved. */
5 /* */
6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
8 /* SUBJECT TO LICENSE TERMS. */
9 /* */
10 /*************************************************************************/
11
12 /*************************************************************************/
13 /* */
14 /* FILE NAME VERSION */
15 /* */
16 /* hii.c Nucleus PLUS 1.14 */
17 /* */
18 /* COMPONENT */
19 /* */
20 /* HI - History Management */
21 /* */
22 /* DESCRIPTION */
23 /* */
24 /* This file contains the initialization routine for the History */
25 /* Management component. */
26 /* */
27 /* DATA STRUCTURES */
28 /* */
29 /* None */
30 /* */
31 /* FUNCTIONS */
32 /* */
33 /* HII_Initialize History Management Initialize*/
34 /* */
35 /* DEPENDENCIES */
36 /* */
37 /* hi_defs.h History component constants */
38 /* */
39 /* HISTORY */
40 /* */
41 /* DATE REMARKS */
42 /* */
43 /* 03-01-1993 Created initial version 1.0 */
44 /* 04-19-1993 Verified version 1.0 */
45 /* 03-01-1994 Replaced void with VOID, */
46 /* resulting in version 1.1 */
47 /* */
48 /* 03-18-1994 Verified version 1.1 */
49 /* 04-17-1996 updated to version 1.2 */
50 /* 03-24-1998 Released version 1.3 */
51 /* 03-26-1999 Released 1.11m (new release */
52 /* numbering scheme) */
53 /* 04-17-2002 Released version 1.13m */
54 /* 11-07-2002 Released version 1.14 */
55 /*************************************************************************/
56 #define NU_SOURCE_FILE
57
58
59 #include "hi_defs.h" /* History constants */
60 #include "hi_extr.h" /* History interfaces */
61
62
63 /* Define external inner-component global data references. */
64
65 extern INT HID_History_Enable;
66 extern INT HID_Write_Index;
67 extern INT HID_Read_Index;
68 extern INT HID_Entry_Count;
69 extern TC_PROTECT HID_History_Protect;
70
71
72 /*************************************************************************/
73 /* */
74 /* FUNCTION */
75 /* */
76 /* HII_Initialize */
77 /* */
78 /* DESCRIPTION */
79 /* */
80 /* This function initializes the data structures that control the */
81 /* operation of the History component (HI). This routine must be */
82 /* called from Supervisor mode in Supervisor/User mode switching */
83 /* kernels. */
84 /* */
85 /* CALLED BY */
86 /* */
87 /* INC_Initialize System initialization */
88 /* */
89 /* CALLS */
90 /* */
91 /* None */
92 /* */
93 /* INPUTS */
94 /* */
95 /* None */
96 /* */
97 /* OUTPUTS */
98 /* */
99 /* HID_Current_Index Next available table index */
100 /* HID_Entry_Count Counter of entries in table */
101 /* HID_Table_Protect History table protection */
102 /* */
103 /* HISTORY */
104 /* */
105 /* DATE REMARKS */
106 /* */
107 /* 03-01-1993 Created initial version 1.0 */
108 /* 04-19-1993 Verified version 1.0 */
109 /* 03-01-1994 Replaced void with VOID, */
110 /* resulting in version 1.1 */
111 /* */
112 /* 03-18-1994 Verified version 1.1 */
113 /* */
114 /*************************************************************************/
115 VOID HII_Initialize(VOID)
116 {
117 /* Initialize the history enable flag to false. */
118 HID_History_Enable = NU_FALSE;
119
120 /* Initialize the starting indices to the first entry. */
121 HID_Write_Index = 0;
122 HID_Read_Index = 0;
123
124 /* Initialize the entry counter to 0. */
125 HID_Entry_Count = 0;
126
127 /* Initialize the history protection structure. */
128 HID_History_Protect.tc_tcb_pointer = NU_NULL;
129 }
130
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