FreeCalypso > hg > fc-magnetite

annotate src/gpf2/osl/os_pro_ir.c @ 570:855b3c5bb4b5

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.../cst/cst_exts.c: tab indentation fixes
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 12 Jan 2019 22:53:46 +0000
parents dfa8771e84b1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * This C module is a reconstruction based on the disassembly of
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3 * os_pro.obj in frame_na7_db_ir.lib from the Leonardo package.
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4 */
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5
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6 /* set of included headers from COFF symtab: */
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include "nucleus.h"
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10 #include "typedefs.h"
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11 #include "os.h"
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12 #include "gdi.h"
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13 #include "os_types.h"
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14 #include "os_glob.h"
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15
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16 extern VOID *TCD_Current_Thread;
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17 extern T_OS_TASK_TABLE_ENTRY TaskTable[];
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18 extern unsigned os_time_to_tick_multiplier;
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19
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20 #define OS_NU_TASK_MAGIC 0xdeafbeef
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21
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22 VOID
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23 os_TaskEntry(UNSIGNED TaskHandle, VOID *argv)
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24 {
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25 TaskTable[TaskHandle].TaskEntry(TaskHandle, 0);
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26 }
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27
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28 GLOBAL LONG
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29 os_SuspendTask(OS_HANDLE Caller, ULONG Time)
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30 {
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31 UNSIGNED SuspendTicks;
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32
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33 SuspendTicks = TIME_TO_SYSTEM_TICKS(Time);
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34 if (!SuspendTicks)
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35 SuspendTicks = 1;
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36 NU_Sleep(SuspendTicks);
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37 return (OS_OK);
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38 }
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39
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40 GLOBAL LONG
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41 os_ResumeTask(OS_HANDLE task_handle)
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42 {
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43 if (NU_Resume_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS)
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44 return(OS_OK);
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45 else
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46 return(OS_ERROR);
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47 }
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48
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49 GLOBAL LONG
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50 os_Relinquish(void)
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51 {
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52 NU_Relinquish();
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53 return(OS_OK);
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54 }
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55
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56 GLOBAL OS_HANDLE
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57 os_MyHandle(void)
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58 {
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59 OS_NU_TASK *os_nu_task = (OS_NU_TASK *) TCD_Current_Thread;
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60
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61 if (os_nu_task && os_nu_task->magic_nr == OS_NU_TASK_MAGIC)
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62 return(os_nu_task->handle);
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63 else
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64 return(OS_NOTASK);
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65 }
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66
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67 GLOBAL LONG
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68 os_GetTaskName(OS_HANDLE Caller, OS_HANDLE TaskHandle, char *Name)
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69 {
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70 if (TaskHandle) {
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71 if (TaskHandle > MaxTasks || !TaskTable[TaskHandle].Name[0])
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72 return(OS_ERROR);
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73 strcpy(Name, TaskTable[TaskHandle].Name);
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74 } else if (TCD_Current_Thread) {
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75 NU_TASK *curtask = TCD_Current_Thread;
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76 strcpy(Name, curtask->tc_name);
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77 } else
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78 strcpy(Name, "ROOT");
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79 return(OS_OK);
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80 }
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81
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82 GLOBAL LONG
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83 os_DeferTask(OS_HANDLE task_handle, OS_TIME time)
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84 {
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85 if (NU_Suspend_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS)
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86 return(OS_OK);
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87 else
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88 return(OS_ERROR);
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89 }
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90
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91 GLOBAL LONG
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92 os_CheckTaskStack(OS_HANDLE Handle)
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93 {
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94 #ifdef __GNUC__
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95 register void *sp asm("sp");
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96 #endif
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97
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98 if (*TaskTable[Handle].Stack != GUARD_PATTERN)
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99 return(OS_ERROR);
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100 #ifdef __GNUC__
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101 if (TCD_Current_Thread) {
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102 NU_TASK *curtask = TCD_Current_Thread;
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103 if (sp < curtask->tc_stack_start)
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104 return(OS_ERROR);
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105 }
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106 #endif
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107 return(OS_OK);
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108 }