mirror of https://github.com/ksherlock/mpw.git
198 lines
8.2 KiB
C
198 lines
8.2 KiB
C
#pragma once
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// This header file defines the internal interfaces of the CPU module.
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extern void cpuMakeOpcodeTableForModel(void);
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extern void cpuCreateMulTimeTables(void);
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// StackFrameGen
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extern void cpuStackFrameGenerate(uint16_t vector_no, uint32_t pc);
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extern void cpuStackFrameInit(void);
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// Registers
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extern uint32_t cpu_sr; // Not static because the flags calculation uses it extensively
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extern BOOLE cpuGetFlagSupervisor(void);
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extern BOOLE cpuGetFlagMaster(void);
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extern void cpuSetUspDirect(uint32_t usp);
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extern uint32_t cpuGetUspDirect(void);
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extern uint32_t cpuGetUspAutoMap(void);
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extern void cpuSetSspDirect(uint32_t ssp);
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extern uint32_t cpuGetSspDirect(void);
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extern uint32_t cpuGetSspAutoMap(void);
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extern void cpuSetMspDirect(uint32_t msp);
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extern uint32_t cpuGetMspDirect(void);
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extern uint32_t cpuGetMspAutoMap(void);
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extern void cpuSetMspAutoMap(uint32_t new_msp);
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extern uint32_t cpuGetIspAutoMap(void);
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extern void cpuSetIspAutoMap(uint32_t new_isp);
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extern void cpuSetDReg(uint32_t i, uint32_t value);
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extern uint32_t cpuGetDReg(uint32_t i);
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extern void cpuSetAReg(uint32_t i, uint32_t value);
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extern uint32_t cpuGetAReg(uint32_t i);
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extern void cpuSetReg(uint32_t da, uint32_t i, uint32_t value);
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extern uint32_t cpuGetReg(uint32_t da, uint32_t i);
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extern void cpuSetPC(uint32_t address);
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extern uint32_t cpuGetPC(void);
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extern void cpuSetStop(BOOLE stop);
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extern BOOLE cpuGetStop(void);
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extern void cpuSetVbr(uint32_t vbr);
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extern uint32_t cpuGetVbr(void);
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extern void cpuSetSfc(uint32_t sfc);
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extern uint32_t cpuGetSfc(void);
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extern void cpuSetDfc(uint32_t dfc);
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extern uint32_t cpuGetDfc(void);
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extern void cpuSetCacr(uint32_t cacr);
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extern uint32_t cpuGetCacr(void);
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extern void cpuSetCaar(uint32_t caar);
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extern uint32_t cpuGetCaar(void);
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extern void cpuSetSR(uint32_t sr);
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extern uint32_t cpuGetSR(void);
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extern void cpuSetInstructionTime(uint32_t cycles);
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extern uint32_t cpuGetInstructionTime(void);
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extern void cpuSetOriginalPC(uint32_t pc);
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extern uint32_t cpuGetOriginalPC(void);
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extern void cpuSetInstructionAborted(bool aborted);
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extern bool cpuGetInstructionAborted(void);
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#ifdef CPU_INSTRUCTION_LOGGING
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extern void cpuSetCurrentOpcode(uint16_t opcode);
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extern uint16_t cpuGetCurrentOpcode(void);
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#endif
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extern void cpuProfileWrite(void);
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extern void cpuSetModelMask(uint8_t model_mask);
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extern uint8_t cpuGetModelMask(void);
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extern void cpuSetDRegWord(uint32_t regno, uint16_t val);
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extern void cpuSetDRegByte(uint32_t regno, uint8_t val);
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extern uint16_t cpuGetRegWord(uint32_t i, uint32_t regno);
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extern uint16_t cpuGetDRegWord(uint32_t regno);
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extern uint8_t cpuGetDRegByte(uint32_t regno);
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extern uint32_t cpuGetDRegWordSignExtLong(uint32_t regno);
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extern uint16_t cpuGetDRegByteSignExtWord(uint32_t regno);
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extern uint32_t cpuGetDRegByteSignExtLong(uint32_t regno);
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extern uint16_t cpuGetARegWord(uint32_t regno);
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extern uint8_t cpuGetARegByte(uint32_t regno);
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extern uint16_t cpuGetNextWord(void);
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extern uint32_t cpuGetNextWordSignExt(void);
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extern uint32_t cpuGetNextLong(void);
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extern void cpuSkipNextWord(void);
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extern void cpuSkipNextLong(void);
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extern void cpuClearPrefetch(void);
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extern void cpuValidateReadPointer(void);
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extern void cpuInitializeFromNewPC(uint32_t new_pc);
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// Effective address
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extern uint32_t cpuEA02(uint32_t regno);
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extern uint32_t cpuEA03(uint32_t regno, uint32_t size);
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extern uint32_t cpuEA04(uint32_t regno, uint32_t size);
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extern uint32_t cpuEA05(uint32_t regno);
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extern uint32_t cpuEA06(uint32_t regno);
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extern uint32_t cpuEA70(void);
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extern uint32_t cpuEA71(void);
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extern uint32_t cpuEA72(void);
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extern uint32_t cpuEA73(void);
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// Flags
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extern void cpuSetFlagsAdd(BOOLE z, BOOLE rm, BOOLE dm, BOOLE sm);
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extern void cpuSetFlagsSub(BOOLE z, BOOLE rm, BOOLE dm, BOOLE sm);
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extern void cpuSetFlagsCmp(BOOLE z, BOOLE rm, BOOLE dm, BOOLE sm);
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extern void cpuSetZFlagBitOpsB(uint8_t res);
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extern void cpuSetZFlagBitOpsL(uint32_t res);
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extern void cpuSetFlagsNZ00NewB(uint8_t res);
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extern void cpuSetFlagsNZ00NewW(uint16_t res);
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extern void cpuSetFlagsNZ00NewL(uint32_t res);
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extern void cpuSetFlagsNZ00New64(int64_t res);
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extern void cpuSetFlagZ(BOOLE f);
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extern void cpuSetFlagN(BOOLE f);
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extern void cpuSetFlagV(BOOLE f);
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extern void cpuSetFlagC(BOOLE f);
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extern void cpuSetFlagXC(BOOLE f);
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extern void cpuSetFlags0100(void);
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extern void cpuSetFlagsNeg(BOOLE z, BOOLE rm, BOOLE dm);
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extern BOOLE cpuGetFlagX(void);
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extern void cpuSetFlagsNegx(BOOLE z, BOOLE rm, BOOLE dm);
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extern BOOLE cpuGetFlagV(void);
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extern void cpuSetFlagsNZVC(BOOLE z, BOOLE n, BOOLE v, BOOLE c);
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extern void cpuSetFlagsVC(BOOLE v, BOOLE c);
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extern void cpuSetFlagsShiftZero(BOOLE z, BOOLE rm);
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extern void cpuSetFlagsShift(BOOLE z, BOOLE rm, BOOLE c, BOOLE v);
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extern void cpuSetFlagsRotate(BOOLE z, BOOLE rm, BOOLE c);
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extern void cpuSetFlagsRotateX(uint16_t z, uint16_t rm, uint16_t x);
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extern void cpuSetFlagsAddX(BOOLE z, BOOLE rm, BOOLE dm, BOOLE sm);
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extern void cpuSetFlagsSubX(BOOLE z, BOOLE rm, BOOLE dm, BOOLE sm);
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extern void cpuSetFlagsAbs(uint16_t f);
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extern uint16_t cpuGetZFlagB(uint8_t res);
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extern uint16_t cpuGetZFlagW(uint16_t res);
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extern uint16_t cpuGetZFlagL(uint32_t res);
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extern uint16_t cpuGetNFlagB(uint8_t res);
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extern uint16_t cpuGetNFlagW(uint16_t res);
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extern uint16_t cpuGetNFlagL(uint32_t res);
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extern void cpuClearFlagsVC(void);
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extern BOOLE cpuCalculateConditionCode0(void);
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extern BOOLE cpuCalculateConditionCode1(void);
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extern BOOLE cpuCalculateConditionCode2(void);
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extern BOOLE cpuCalculateConditionCode3(void);
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extern BOOLE cpuCalculateConditionCode4(void);
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extern BOOLE cpuCalculateConditionCode5(void);
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extern BOOLE cpuCalculateConditionCode6(void);
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extern BOOLE cpuCalculateConditionCode7(void);
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extern BOOLE cpuCalculateConditionCode8(void);
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extern BOOLE cpuCalculateConditionCode9(void);
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extern BOOLE cpuCalculateConditionCode10(void);
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extern BOOLE cpuCalculateConditionCode11(void);
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extern BOOLE cpuCalculateConditionCode12(void);
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extern BOOLE cpuCalculateConditionCode13(void);
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extern BOOLE cpuCalculateConditionCode14(void);
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extern BOOLE cpuCalculateConditionCode15(void);
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extern BOOLE cpuCalculateConditionCode(uint32_t cc);
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// Logging
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#ifdef CPU_INSTRUCTION_LOGGING
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extern void cpuCallInstructionLoggingFunc(void);
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extern void cpuCallExceptionLoggingFunc(char *description, uint32_t original_pc, uint16_t opcode);
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extern void cpuCallInterruptLoggingFunc(uint32_t level, uint32_t vector_address);
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#endif
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// Interrupt
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extern uint32_t cpuActivateSSP(void);
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extern void cpuSetRaiseInterrupt(BOOLE raise_irq);
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extern BOOLE cpuGetRaiseInterrupt(void);
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extern void cpuSetRaiseInterruptLevel(uint32_t raise_irq_level);
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extern uint32_t cpuGetRaiseInterruptLevel(void);
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// Exceptions
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extern void cpuThrowPrivilegeViolationException(void);
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extern void cpuThrowIllegalInstructionException(BOOLE executejmp);
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extern void cpuThrowIllegalInstructionExceptionFromBreakpoint(void);
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extern void cpuThrowFLineException(void);
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extern void cpuThrowALineException(void);
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extern void cpuThrowTrapVException(void);
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extern void cpuThrowTrapException(uint32_t vector_no);
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extern void cpuThrowDivisionByZeroException(void);
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extern void cpuThrowChkException(void);
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extern void cpuThrowTraceException(void);
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extern void cpuThrowResetException(void);
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extern void cpuCallResetExceptionFunc(void);
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extern void cpuFrame1(uint16_t vector_offset, uint32_t pc);
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// Private help functions
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static uint32_t cpuSignExtByteToLong(uint8_t v) {return (uint32_t)(int32_t)(int8_t) v;}
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static uint16_t cpuSignExtByteToWord(uint8_t v) {return (uint16_t)(int16_t)(int8_t) v;}
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static uint32_t cpuSignExtWordToLong(uint16_t v) {return (uint32_t)(int32_t)(int16_t) v;}
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static uint32_t cpuJoinWordToLong(uint16_t upper, uint16_t lower) {return (((uint32_t)upper) << 16) | ((uint32_t)lower);}
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static uint32_t cpuJoinByteToLong(uint8_t upper, uint8_t midh, uint8_t midl, uint8_t lower) {return (((uint32_t)upper) << 24) | (((uint32_t)midh) << 16) | (((uint32_t)midl) << 8) | ((uint32_t)lower);}
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static uint16_t cpuJoinByteToWord(uint8_t upper, uint8_t lower) {return (((uint16_t)upper) << 8) | ((uint16_t)lower);}
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static BOOLE cpuMsbB(uint8_t v) {return v>>7;}
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static BOOLE cpuMsbW(uint16_t v) {return v>>15;}
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static BOOLE cpuMsbL(uint32_t v) {return v>>31;}
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static BOOLE cpuIsZeroB(uint8_t v) {return v == 0;}
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static BOOLE cpuIsZeroW(uint16_t v) {return v == 0;}
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static BOOLE cpuIsZeroL(uint32_t v) {return v == 0;}
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