2 * AcessOS Basic C Library
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4 #include "stdio_int.h"
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17 // === PROTOTYPES ===
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19 static void cpuid(uint32_t Num, uint32_t *EAX, uint32_t *EBX, uint32_t *EDX, uint32_t *ECX);
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21 int ErrorHandler(int Fault);
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24 extern tLoadedLib gLoadedLibraries[64];
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27 extern char **_envp;
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28 extern struct sFILE _iob[];
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29 extern struct sFILE *stdin;
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30 extern struct sFILE *stdout;
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31 extern struct sFILE *stderr;
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32 // --- CPU Features ---
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34 tCPUID gCPU_Features;
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40 * \brief Stub Entrypoint
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41 * \param BaseAddress Unused - Load Address of libc
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42 * \param argc Unused - Argument Count (0 for current version of ld-acess)
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43 * \param argv Unused - Arguments (NULL for current version of ld-acess)
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44 * \param envp Environment Pointer
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46 int SoMain(unsigned int BaseAddress, int argc, char **argv, char **envp)
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51 // Init FileIO Pointers
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53 stdin->FD = 0; stdin->Flags = FILE_FLAG_MODE_READ;
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55 stdout->FD = 1; stdout->Flags = FILE_FLAG_MODE_WRITE;
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57 stderr->FD = 2; stderr->Flags = FILE_FLAG_MODE_WRITE;
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62 cpuid(1, NULL, NULL, &edx, &ecx);
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63 gCPU_Features.SSE = edx & (1 << 25); // SSE
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64 gCPU_Features.SSE2 = edx & (1 << 26); // SSE2
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68 // Set Error handler
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69 _SysSetFaultHandler(ErrorHandler);
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74 int ErrorHandler(int Fault)
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77 fprintf(stderr, "ErrorHandler: (Fault = %i)\n", Fault);
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78 fprintf(stderr, "Loaded Libraries:\n");
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79 for( i = 0; i < 64; i ++ )
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81 //if(gLoadedLibraries[i].Base == 0) continue;
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82 // fprintf(stderr, "%02i: %p %s\n", i, gLoadedLibraries[i].Base, gLoadedLibraries[i].Name);
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84 fprintf(stderr, "\n");
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90 * \brief Call the CPUID opcode
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92 static void cpuid(uint32_t Num, uint32_t *EAX, uint32_t *EBX, uint32_t *EDX, uint32_t *ECX)
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94 uint32_t eax, ebx, edx, ecx;
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96 __asm__ __volatile__ (
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98 : "=a"(eax), "=c"(ecx), "=d"(edx)
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102 if(EAX) *EAX = eax;
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103 if(EBX) *EBX = ebx;
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104 if(EDX) *EDX = edx;
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105 if(ECX) *ECX = ecx;
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