FreeCalypso > hg > fc-magnetite
annotate src/gpf2/osl/os_pro_ir.c @ 490:a996d0429c59
OSL os_com_ir.c: system protect/unprotect are macros, not functions
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 22 Jun 2018 16:43:25 +0000 |
parents | 91e8dac34ada |
children | dfa8771e84b1 |
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 "gpfconf.h" /* FreeCalypso addition */ |
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10 #include "../../nucleus/nucleus.h" |
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11 #include "typedefs.h" |
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12 #include "os.h" |
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13 #include "gdi.h" |
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14 #include "os_types.h" |
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15 #include "os_glob.h" |
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16 |
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17 extern VOID *TCD_Current_Thread; |
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18 extern T_OS_TASK_TABLE_ENTRY TaskTable[]; |
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19 extern unsigned os_time_to_tick_multiplier; |
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20 |
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21 #define OS_NU_TASK_MAGIC 0xdeafbeef |
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22 |
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23 VOID |
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24 os_TaskEntry(UNSIGNED TaskHandle, VOID *argv) |
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25 { |
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26 TaskTable[TaskHandle].TaskEntry(TaskHandle, 0); |
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27 } |
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28 |
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29 GLOBAL LONG |
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30 os_SuspendTask(OS_HANDLE Caller, ULONG Time) |
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31 { |
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32 UNSIGNED SuspendTicks; |
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33 |
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34 SuspendTicks = TIME_TO_SYSTEM_TICKS(Time); |
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35 if (!SuspendTicks) |
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36 SuspendTicks = 1; |
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37 NU_Sleep(SuspendTicks); |
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38 return (OS_OK); |
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39 } |
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40 |
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41 GLOBAL LONG |
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42 os_ResumeTask(OS_HANDLE task_handle) |
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43 { |
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44 if (NU_Resume_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS) |
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45 return(OS_OK); |
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46 else |
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47 return(OS_ERROR); |
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48 } |
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49 |
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50 GLOBAL LONG |
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51 os_Relinquish(void) |
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52 { |
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53 NU_Relinquish(); |
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54 return(OS_OK); |
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55 } |
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56 |
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57 GLOBAL OS_HANDLE |
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58 os_MyHandle(void) |
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59 { |
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60 OS_NU_TASK *os_nu_task = (OS_NU_TASK *) TCD_Current_Thread; |
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61 |
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62 if (os_nu_task && os_nu_task->magic_nr == OS_NU_TASK_MAGIC) |
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63 return(os_nu_task->handle); |
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64 else |
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65 return(OS_NOTASK); |
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66 } |
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67 |
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68 GLOBAL LONG |
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69 os_GetTaskName(OS_HANDLE Caller, OS_HANDLE TaskHandle, char *Name) |
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70 { |
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71 if (TaskHandle) { |
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72 if (TaskHandle > MaxTasks || !TaskTable[TaskHandle].Name[0]) |
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73 return(OS_ERROR); |
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74 strcpy(Name, TaskTable[TaskHandle].Name); |
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75 } else if (TCD_Current_Thread) { |
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76 NU_TASK *curtask = TCD_Current_Thread; |
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77 strcpy(Name, curtask->tc_name); |
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78 } else |
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79 strcpy(Name, "ROOT"); |
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80 return(OS_OK); |
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81 } |
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82 |
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83 GLOBAL LONG |
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84 os_DeferTask(OS_HANDLE task_handle, OS_TIME time) |
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85 { |
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86 if (NU_Suspend_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS) |
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87 return(OS_OK); |
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88 else |
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89 return(OS_ERROR); |
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90 } |
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91 |
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92 GLOBAL LONG |
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93 os_CheckTaskStack(OS_HANDLE Handle) |
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94 { |
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95 register void *sp asm("sp"); |
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96 |
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97 if (*TaskTable[Handle].Stack != GUARD_PATTERN) |
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98 return(OS_ERROR); |
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99 if (TCD_Current_Thread) { |
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100 NU_TASK *curtask = TCD_Current_Thread; |
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101 if (sp < curtask->tc_stack_start) |
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102 return(OS_ERROR); |
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103 } |
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104 return(OS_OK); |
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105 } |