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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ColdFire_MCF51CN128_CodeWarrior/] [Sources/] [exceptions.old0.c] - Rev 592
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/* * File: exceptions.c * Purpose: Generic exception handling for ColdFire processors * */ #include "derivative.h" #include "exceptions.h" #include "startcf.h" #define REGISTER_ABI __REGABI__ extern asm void interrupt 109 vPortYieldISR( void ); extern void interrupt 86 vFECISRHandler( void ); /***********************************************************************/ /* * Set NO_PRINTF to 0 in order the exceptions.c interrupt handler * to output messages to the standard io. * */ #define NO_PRINTF 1 #if NO_PRINTF #define VECTORDISPLAY(MESSAGE) asm { nop; }; #define VECTORDISPLAY2(MESSAGE,MESSAGE2) asm { nop; }; #define VECTORDISPLAY3(MESSAGE,MESSAGE2,MESSAGE3) asm { nop; }; #else #include <stdio.h> #define VECTORDISPLAY(MESSAGE1) printf(MESSAGE1); #define VECTORDISPLAY2(MESSAGE1,MESSAGE2) printf(MESSAGE1,MESSAGE2); #define VECTORDISPLAY3(MESSAGE1,MESSAGE2,MESSAGE3) printf(MESSAGE1,MESSAGE2,MESSAGE3); #endif #ifdef __cplusplus extern "C" { #endif extern unsigned long far _SP_INIT[]; /***********************************************************************/ /* * Handling of the TRK ColdFire libs (printf support in Debugger Terminal) * * To enable this support: * - Set CONSOLE_IO_SUPPORT 1 in this file; this will enable * TrapHandler_printf for the trap #14 exception. * * - Make sure the file console_io_cf.c is in your project. * * - In the debugger make sure that in the Connection "Setup" dialog, * "Debug Options" property page, the check box * "Enable Terminal printf support" is set. * * * */ #define CONSOLE_IO_SUPPORT 0 #if CONSOLE_IO_SUPPORT asm void TrapHandler_printf(void) { HALT RTE } #endif /***********************************************************************/ /* * This is the handler for all exceptions which are not common to all * ColdFire Chips. * * Called by mcf_exception_handler * */ void derivative_interrupt(unsigned long vector) { if (vector < 64 || vector > 192) { VECTORDISPLAY2("User Defined Vector #%d\n",vector); } } /*********************************************************************** * * This is the exception handler for all exceptions common to all * chips ColdFire. Most exceptions do nothing, but some of the more * important ones are handled to some extent. * * Called by asm_exception_handler * * The ColdFire family of processors has a simplified exception stack * frame that looks like the following: * * 3322222222221111 111111 * 1098765432109876 5432109876543210 * 8 +----------------+----------------+ * | Program Counter | * 4 +----------------+----------------+ * |FS/Fmt/Vector/FS| SR | * SP --> 0 +----------------+----------------+ * * The stack self-aligns to a 4-byte boundary at an exception, with * the FS/Fmt/Vector/FS field indicating the size of the adjustment * (SP += 0,1,2,3 bytes). * 31 28 27 26 25 18 17 16 15 0 * 4 +---------------------------------------+------------------------------------+ * | Format | FS[3..2] | Vector | FS[1..0] | SR | * SP --> 0 +---------------------------------------+------------------------------------+ */ #define MCF5XXX_RD_SF_FORMAT(PTR) \ ((*((unsigned short *)(PTR)) >> 12) & 0x00FF) #define MCF5XXX_RD_SF_VECTOR(PTR) \ ((*((unsigned short *)(PTR)) >> 2) & 0x00FF) #define MCF5XXX_RD_SF_FS(PTR) \ ( ((*((unsigned short *)(PTR)) & 0x0C00) >> 8) | (*((unsigned short *)(PTR)) & 0x0003) ) #define MCF5XXX_SF_SR(PTR) *(((unsigned short *)(PTR))+1) #define MCF5XXX_SF_PC(PTR) *((unsigned long *)(PTR)+1) #define MCF5XXX_EXCEPTFMT "%s -- PC = %#08X\n" void mcf_exception_handler(void *framepointer) { volatile unsigned long exceptionStackFrame = (*(unsigned long *)(framepointer)); volatile unsigned short stackFrameSR = MCF5XXX_SF_SR(framepointer); volatile unsigned short stackFrameWord = (*(unsigned short *)(framepointer)); volatile unsigned long stackFrameFormat = (unsigned long)MCF5XXX_RD_SF_FORMAT(&stackFrameWord); volatile unsigned long stackFrameFS = (unsigned long)MCF5XXX_RD_SF_FS(&stackFrameWord); volatile unsigned long stackFrameVector = (unsigned long)MCF5XXX_RD_SF_VECTOR(&stackFrameWord); volatile unsigned long stackFramePC = MCF5XXX_SF_PC(framepointer); switch (stackFrameFormat) { case 4: case 5: case 6: case 7: break; default: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT,"Illegal stack type", stackFramePC); break; } switch (stackFrameVector) { case 2: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Access Error", stackFramePC); switch (stackFrameFS) { case 4: VECTORDISPLAY("Error on instruction fetch\n"); break; case 8: VECTORDISPLAY("Error on operand write\n"); break; case 9: VECTORDISPLAY("Attempted write to write-protected space\n"); break; case 12: VECTORDISPLAY("Error on operand read\n"); break; default: VECTORDISPLAY("Reserved Fault Status Encoding\n"); break; } break; case 3: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Address Error", stackFramePC); switch (stackFrameFS) { case 4: VECTORDISPLAY("Error on instruction fetch\n"); break; case 8: VECTORDISPLAY("Error on operand write\n"); break; case 9: VECTORDISPLAY("Attempted write to write-protected space\n"); break; case 12: VECTORDISPLAY("Error on operand read\n"); break; default: VECTORDISPLAY("Reserved Fault Status Encoding\n"); break; } break; case 4: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Illegal instruction", stackFramePC); break; case 8: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Privilege violation", stackFramePC); break; case 9: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Trace Exception", stackFramePC); break; case 10: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Unimplemented A-Line Instruction", stackFramePC); break; case 11: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Unimplemented F-Line Instruction", stackFramePC); break; case 12: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Debug Interrupt", stackFramePC); break; case 14: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Format Error", stackFramePC); break; case 15: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Unitialized Interrupt", stackFramePC); break; case 24: VECTORDISPLAY3(MCF5XXX_EXCEPTFMT, "Spurious Interrupt", stackFramePC); break; case 25: case 26: case 27: case 28: case 29: case 30: case 31: VECTORDISPLAY2("Autovector interrupt level %d\n", stackFrameVector - 24); break; case 32: case 33: case 34: case 35: case 36: case 37: case 38: case 39: case 40: case 41: case 42: case 43: case 44: case 45: case 46: case 47: VECTORDISPLAY2("TRAP #%d\n", stackFrameVector - 32); break; case 5: case 6: case 7: case 13: case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: case 48: case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: case 58: case 59: case 60: case 61: case 62: case 63: VECTORDISPLAY2("Reserved: #%d\n", stackFrameVector); break; default: derivative_interrupt(stackFrameVector); break; } } #if REGISTER_ABI asm void asm_exception_handler(void) { link a6,#0 lea -20(sp), sp movem.l d0-d2/a0-a1, (sp) lea 24(sp),a0 /* A0 point to exception stack frame on the stack */ jsr mcf_exception_handler movem.l (sp), d0-d2/a0-a1 lea 20(sp), sp unlk a6 rte } #else asm void asm_exception_handler(void) { link a6,#0 lea -20(sp), sp movem.l d0-d2/a0-a1, (sp) pea 24(sp) /* push exception frame address */ jsr mcf_exception_handler movem.l 4(sp), d0-d2/a0-a1 lea 24(sp), sp unlk a6 rte } #endif typedef void (* vectorTableEntryType)(void); #if CONSOLE_IO_SUPPORT vectorTableEntryType vector_printf @Vtrap14 = TrapHandler_printf; #endif /* * MCF51CN128 vector table * CF V1 has 114 vector + SP_INIT in the vector table (115 entries) */ __declspec(weak) vectorTableEntryType vector_0 @INITSP = (vectorTableEntryType)&_SP_INIT; __declspec(weak) vectorTableEntryType vector_1 @INITPC = (vectorTableEntryType)&_startup; __declspec(weak) vectorTableEntryType vector_2 @Vaccerr = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_3 @Vadderr = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_4 @Viinstr = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_5 @VReserved5 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_6 @VReserved6 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_7 @VReserved7 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_8 @Vprviol = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_9 @Vtrace = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_10 @Vunilaop = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_11 @Vunilfop = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_12 @Vdbgi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_13 @VReserved13 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_14 @Vferror = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_15 @VReserved15 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_16 @VReserved16 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_17 @VReserved17 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_18 @VReserved18 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_19 @VReserved19 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_20 @VReserved20 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_21 @VReserved21 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_22 @VReserved22 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_23 @VReserved23 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_24 @Vspuri = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_25 @VReserved25 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_26 @VReserved26 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_27 @VReserved27 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_28 @VReserved28 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_29 @VReserved29 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_30 @VReserved30 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_31 @VReserved31 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_32 @Vtrap0 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_33 @Vtrap1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_34 @Vtrap2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_35 @Vtrap3 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_36 @Vtrap4 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_37 @Vtrap5 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_38 @Vtrap6 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_39 @Vtrap7 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_40 @Vtrap8 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_41 @Vtrap9 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_42 @Vtrap10 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_43 @Vtrap11 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_44 @Vtrap12 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_45 @Vtrap13 = asm_exception_handler; #if CONSOLE_IO_SUPPORT == 0 __declspec(weak) vectorTableEntryType vector_46 @Vtrap14 = asm_exception_handler; #endif __declspec(weak) vectorTableEntryType vector_47 @Vtrap15 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_48 @VReserved48 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_49 @VReserved49 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_50 @VReserved50 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_51 @VReserved51 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_52 @VReserved52 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_53 @VReserved53 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_54 @VReserved54 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_55 @VReserved55 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_56 @VReserved56 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_57 @VReserved57 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_58 @VReserved58 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_59 @VReserved59 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_60 @VReserved60 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_61 @Vunsinstr = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_62 @VReserved62 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_63 @VReserved63 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_64 @Virq = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_65 @Vlvd = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_66 @Vlol = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_67 @Vtpm1ch0 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_68 @Vtpm1ch1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_69 @Vtpm1ch2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_70 @Vtpm1ovf = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_71 @Vmtim1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_72 @Vtpm2ch0 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_73 @Vtpm2ch1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_74 @Vtpm2ch2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_75 @Vtpm2ovf = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_76 @Vspi1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_77 @Vspi2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_78 @Vmtim2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_79 @Vsci1err = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_80 @Vsci1rx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_81 @Vsci1tx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_82 @Vsci2err = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_83 @Vsci2rx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_84 @Vsci2tx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_85 @Vsci3or = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_86 @Vfectxf = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_87 @Vfecrxf = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_88 @Vfecother = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_89 @Vfechberr = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_90 @Vfecbabr = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_91 @Vfecbabt = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_92 @Vfecgra = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_93 @Vfectxb = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_94 @Vfecrxb = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_95 @Vfecmii = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_96 @Vfeceberr = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_97 @Vfeclc = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_98 @Vfecrl = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_99 @Vfecun = vFECISRHandler; __declspec(weak) vectorTableEntryType vector_100 @Vsci3err = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_101 @Vsci3rx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_102 @Vsci3tx = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_103 @VL7swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_104 @VL6swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_105 @VL5swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_106 @VL4swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_107 @VL3swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_108 @VL2swi = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_109 @VL1swi = vPortYieldISR; __declspec(weak) vectorTableEntryType vector_110 @Viic1 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_111 @Viic2 = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_112 @Vadc = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_113 @Vkeyboard = asm_exception_handler; __declspec(weak) vectorTableEntryType vector_114 @Vrtc = asm_exception_handler; #ifdef __cplusplus } #endif
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