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/* armdefs.h -- ARMulator common definitions: ARM6 Instruction Emulator. Copyright (C) 1994 Advanced RISC Machines Ltd. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #include "config.h" #include <stdio.h> #include <stdlib.h> #define FALSE 0 #define TRUE 1 #define LOW 0 #define HIGH 1 #define LOWHIGH 1 #define HIGHLOW 2 #ifndef __STDC__ typedef char *VoidStar; #endif #ifdef HAVE_STDINT_H #include <stdint.h> typedef uint32_t ARMword; typedef int32_t ARMsword; typedef uint64_t ARMdword; typedef int64_t ARMsdword; #else typedef unsigned int ARMword; /* must be 32 bits wide */ typedef signed int ARMsword; typedef unsigned long long ARMdword; /* Must be at least 64 bits wide. */ typedef signed long long ARMsdword; #endif typedef struct ARMul_State ARMul_State; typedef unsigned ARMul_CPInits (ARMul_State * state); typedef unsigned ARMul_CPExits (ARMul_State * state); typedef unsigned ARMul_LDCs (ARMul_State * state, unsigned type, ARMword instr, ARMword value); typedef unsigned ARMul_STCs (ARMul_State * state, unsigned type, ARMword instr, ARMword * value); typedef unsigned ARMul_MRCs (ARMul_State * state, unsigned type, ARMword instr, ARMword * value); typedef unsigned ARMul_MCRs (ARMul_State * state, unsigned type, ARMword instr, ARMword value); typedef unsigned ARMul_CDPs (ARMul_State * state, unsigned type, ARMword instr); typedef unsigned ARMul_CPReads (ARMul_State * state, unsigned reg, ARMword * value); typedef unsigned ARMul_CPWrites (ARMul_State * state, unsigned reg, ARMword value); struct ARMul_State { ARMword Emulate; /* to start and stop emulation */ unsigned EndCondition; /* reason for stopping */ unsigned ErrorCode; /* type of illegal instruction */ ARMword Reg[16]; /* the current register file */ ARMword RegBank[7][16]; /* all the registers */ /* 40 bit accumulator. We always keep this 64 bits wide, and move only 40 bits out of it in an MRA insn. */ ARMdword Accumulator; ARMword Cpsr; /* the current psr */ ARMword Spsr[7]; /* the exception psr's */ ARMword NFlag, ZFlag, CFlag, VFlag, IFFlags; /* dummy flags for speed */ ARMword SFlag; #ifdef MODET ARMword TFlag; /* Thumb state */ #endif ARMword Bank; /* the current register bank */ ARMword Mode; /* the current mode */ ARMword instr, pc, temp; /* saved register state */ ARMword loaded, decoded; /* saved pipeline state */ unsigned long NumScycles, NumNcycles, NumIcycles, NumCcycles, NumFcycles; /* emulated cycles used */ unsigned long NumInstrs; /* the number of instructions executed */ unsigned NextInstr; unsigned VectorCatch; /* caught exception mask */ unsigned CallDebug; /* set to call the debugger */ unsigned CanWatch; /* set by memory interface if its willing to suffer the overhead of checking for watchpoints on each memory access */ unsigned MemReadDebug, MemWriteDebug; unsigned long StopHandle; unsigned char *MemDataPtr; /* admin data */ unsigned char *MemInPtr; /* the Data In bus */ unsigned char *MemOutPtr; /* the Data Out bus (which you may not need */ unsigned char *MemSparePtr; /* extra space */ ARMword MemSize; unsigned char *OSptr; /* OS Handle */ char *CommandLine; /* Command Line from ARMsd */ ARMul_CPInits *CPInit[16]; /* coprocessor initialisers */ ARMul_CPExits *CPExit[16]; /* coprocessor finalisers */ ARMul_LDCs *LDC[16]; /* LDC instruction */ ARMul_STCs *STC[16]; /* STC instruction */ ARMul_MRCs *MRC[16]; /* MRC instruction */ ARMul_MCRs *MCR[16]; /* MCR instruction */ ARMul_CDPs *CDP[16]; /* CDP instruction */ ARMul_CPReads *CPRead[16]; /* Read CP register */ ARMul_CPWrites *CPWrite[16]; /* Write CP register */ unsigned char *CPData[16]; /* Coprocessor data */ unsigned char const *CPRegWords[16]; /* map of coprocessor register sizes */ unsigned long LastTime; /* Value of last call to ARMul_Time() */ ARMword CP14R0_CCD; /* used to count 64 clock cycles with CP14 R0 bit 3 set */ unsigned EventSet; /* the number of events in the queue */ unsigned long Now; /* time to the nearest cycle */ struct EventNode **EventPtr; /* the event list */ unsigned Exception; /* enable the next four values */ unsigned Debug; /* show instructions as they are executed */ unsigned NresetSig; /* reset the processor */ unsigned NfiqSig; unsigned NirqSig; unsigned abortSig; unsigned NtransSig; unsigned bigendSig; unsigned prog32Sig; unsigned data32Sig; unsigned lateabtSig; ARMword Vector; /* synthesize aborts in cycle modes */ ARMword Aborted; /* sticky flag for aborts */ ARMword Reseted; /* sticky flag for Reset */ ARMword Inted, LastInted; /* sticky flags for interrupts */ ARMword Base; /* extra hand for base writeback */ ARMword AbortAddr; /* to keep track of Prefetch aborts */ const struct Dbg_HostosInterface *hostif; unsigned is_v4; /* Are we emulating a v4 architecture (or higher) ? */ unsigned is_v5; /* Are we emulating a v5 architecture ? */ unsigned is_v5e; /* Are we emulating a v5e architecture ? */ unsigned is_v6; /* Are we emulating a v6 architecture ? */ unsigned is_XScale; /* Are we emulating an XScale architecture ? */ unsigned is_iWMMXt; /* Are we emulating an iWMMXt co-processor ? */ unsigned is_ep9312; /* Are we emulating a Cirrus Maverick co-processor ? */ unsigned verbose; /* Print various messages like the banner */ }; #define ResetPin NresetSig #define FIQPin NfiqSig #define IRQPin NirqSig #define AbortPin abortSig #define TransPin NtransSig #define BigEndPin bigendSig #define Prog32Pin prog32Sig #define Data32Pin data32Sig #define LateAbortPin lateabtSig /***************************************************************************\ * Properties of ARM we know about * \***************************************************************************/ /* The bitflags */ #define ARM_Fix26_Prop 0x01 #define ARM_Nexec_Prop 0x02 #define ARM_Debug_Prop 0x10 #define ARM_Isync_Prop ARM_Debug_Prop #define ARM_Lock_Prop 0x20 #define ARM_v4_Prop 0x40 #define ARM_v5_Prop 0x80 #define ARM_v5e_Prop 0x100 #define ARM_XScale_Prop 0x200 #define ARM_ep9312_Prop 0x400 #define ARM_iWMMXt_Prop 0x800 #define ARM_v6_Prop 0x1000 /***************************************************************************\ * Macros to extract instruction fields * \***************************************************************************/ #define BIT(n) ( (ARMword)(instr>>(n))&1) /* bit n of instruction */ #define BITS(m,n) ( (ARMword)(instr<<(31-(n))) >> ((31-(n))+(m)) ) /* bits m to n of instr */ #define TOPBITS(n) (instr >> (n)) /* bits 31 to n of instr */ /***************************************************************************\ * The hardware vector addresses * \***************************************************************************/ #define ARMResetV 0L #define ARMUndefinedInstrV 4L #define ARMSWIV 8L #define ARMPrefetchAbortV 12L #define ARMDataAbortV 16L #define ARMAddrExceptnV 20L #define ARMIRQV 24L #define ARMFIQV 28L #define ARMErrorV 32L /* This is an offset, not an address ! */ #define ARMul_ResetV ARMResetV #define ARMul_UndefinedInstrV ARMUndefinedInstrV #define ARMul_SWIV ARMSWIV #define ARMul_PrefetchAbortV ARMPrefetchAbortV #define ARMul_DataAbortV ARMDataAbortV #define ARMul_AddrExceptnV ARMAddrExceptnV #define ARMul_IRQV ARMIRQV #define ARMul_FIQV ARMFIQV /***************************************************************************\ * Mode and Bank Constants * \***************************************************************************/ #define USER26MODE 0L #define FIQ26MODE 1L #define IRQ26MODE 2L #define SVC26MODE 3L #define USER32MODE 16L #define FIQ32MODE 17L #define IRQ32MODE 18L #define SVC32MODE 19L #define ABORT32MODE 23L #define UNDEF32MODE 27L #define SYSTEMMODE 31L #define ARM32BITMODE (state->Mode > 3) #define ARM26BITMODE (state->Mode <= 3) #define ARMMODE (state->Mode) #define ARMul_MODEBITS 0x1fL #define ARMul_MODE32BIT ARM32BITMODE #define ARMul_MODE26BIT ARM26BITMODE #define USERBANK 0 #define FIQBANK 1 #define IRQBANK 2 #define SVCBANK 3 #define ABORTBANK 4 #define UNDEFBANK 5 #define DUMMYBANK 6 #define SYSTEMBANK USERBANK #define BANK_CAN_ACCESS_SPSR(bank) \ ((bank) != USERBANK && (bank) != SYSTEMBANK && (bank) != DUMMYBANK) /***************************************************************************\ * Definitons of things in the emulator * \***************************************************************************/ extern void ARMul_EmulateInit (void); extern ARMul_State *ARMul_NewState (void); extern void ARMul_Reset (ARMul_State * state); extern ARMword ARMul_DoProg (ARMul_State * state); extern ARMword ARMul_DoInstr (ARMul_State * state); /***************************************************************************\ * Definitons of things for event handling * \***************************************************************************/ extern void ARMul_ScheduleEvent (ARMul_State * state, unsigned long delay, unsigned (*func) ()); extern void ARMul_EnvokeEvent (ARMul_State * state); extern unsigned long ARMul_Time (ARMul_State * state); /***************************************************************************\ * Useful support routines * \***************************************************************************/ extern ARMword ARMul_GetReg (ARMul_State * state, unsigned mode, unsigned reg); extern void ARMul_SetReg (ARMul_State * state, unsigned mode, unsigned reg, ARMword value); extern ARMword ARMul_GetPC (ARMul_State * state); extern ARMword ARMul_GetNextPC (ARMul_State * state); extern void ARMul_SetPC (ARMul_State * state, ARMword value); extern ARMword ARMul_GetR15 (ARMul_State * state); extern void ARMul_SetR15 (ARMul_State * state, ARMword value); extern ARMword ARMul_GetCPSR (ARMul_State * state); extern void ARMul_SetCPSR (ARMul_State * state, ARMword value); extern ARMword ARMul_GetSPSR (ARMul_State * state, ARMword mode); extern void ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value); /***************************************************************************\ * Definitons of things to handle aborts * \***************************************************************************/ extern void ARMul_Abort (ARMul_State * state, ARMword address); #define ARMul_ABORTWORD 0xefffffff /* SWI -1 */ #define ARMul_PREFETCHABORT(address) if (state->AbortAddr == 1) \ state->AbortAddr = (address & ~3L) #define ARMul_DATAABORT(address) state->abortSig = HIGH ; \ state->Aborted = ARMul_DataAbortV ; #define ARMul_CLEARABORT state->abortSig = LOW /***************************************************************************\ * Definitons of things in the memory interface * \***************************************************************************/ extern unsigned ARMul_MemoryInit (ARMul_State * state, unsigned long initmemsize); extern void ARMul_MemoryExit (ARMul_State * state); extern ARMword ARMul_LoadInstrS (ARMul_State * state, ARMword address, ARMword isize); extern ARMword ARMul_LoadInstrN (ARMul_State * state, ARMword address, ARMword isize); extern ARMword ARMul_ReLoadInstr (ARMul_State * state, ARMword address, ARMword isize); extern ARMword ARMul_LoadWordS (ARMul_State * state, ARMword address); extern ARMword ARMul_LoadWordN (ARMul_State * state, ARMword address); extern ARMword ARMul_LoadHalfWord (ARMul_State * state, ARMword address); extern ARMword ARMul_LoadByte (ARMul_State * state, ARMword address); extern void ARMul_StoreWordS (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_StoreWordN (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_StoreHalfWord (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_StoreByte (ARMul_State * state, ARMword address, ARMword data); extern ARMword ARMul_SwapWord (ARMul_State * state, ARMword address, ARMword data); extern ARMword ARMul_SwapByte (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_Icycles (ARMul_State * state, unsigned number, ARMword address); extern void ARMul_Ccycles (ARMul_State * state, unsigned number, ARMword address); extern ARMword ARMul_ReadWord (ARMul_State * state, ARMword address); extern ARMword ARMul_ReadByte (ARMul_State * state, ARMword address); extern ARMword ARMul_SafeReadByte (ARMul_State * state, ARMword address); extern void ARMul_WriteWord (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_WriteByte (ARMul_State * state, ARMword address, ARMword data); extern void ARMul_SafeWriteByte (ARMul_State * state, ARMword address, ARMword data); extern ARMword ARMul_MemAccess (ARMul_State * state, ARMword, ARMword, ARMword, ARMword, ARMword, ARMword, ARMword, ARMword, ARMword, ARMword); /***************************************************************************\ * Definitons of things in the co-processor interface * \***************************************************************************/ #define ARMul_FIRST 0 #define ARMul_TRANSFER 1 #define ARMul_BUSY 2 #define ARMul_DATA 3 #define ARMul_INTERRUPT 4 #define ARMul_DONE 0 #define ARMul_CANT 1 #define ARMul_INC 3 #define ARMul_CP13_R0_FIQ 0x1 #define ARMul_CP13_R0_IRQ 0x2 #define ARMul_CP13_R8_PMUS 0x1 #define ARMul_CP14_R0_ENABLE 0x0001 #define ARMul_CP14_R0_CLKRST 0x0004 #define ARMul_CP14_R0_CCD 0x0008 #define ARMul_CP14_R0_INTEN0 0x0010 #define ARMul_CP14_R0_INTEN1 0x0020 #define ARMul_CP14_R0_INTEN2 0x0040 #define ARMul_CP14_R0_FLAG0 0x0100 #define ARMul_CP14_R0_FLAG1 0x0200 #define ARMul_CP14_R0_FLAG2 0x0400 #define ARMul_CP14_R10_MOE_IB 0x0004 #define ARMul_CP14_R10_MOE_DB 0x0008 #define ARMul_CP14_R10_MOE_BT 0x000c #define ARMul_CP15_R1_ENDIAN 0x0080 #define ARMul_CP15_R1_ALIGN 0x0002 #define ARMul_CP15_R5_X 0x0400 #define ARMul_CP15_R5_ST_ALIGN 0x0001 #define ARMul_CP15_R5_IMPRE 0x0406 #define ARMul_CP15_R5_MMU_EXCPT 0x0400 #define ARMul_CP15_DBCON_M 0x0100 #define ARMul_CP15_DBCON_E1 0x000c #define ARMul_CP15_DBCON_E0 0x0003 extern unsigned ARMul_CoProInit (ARMul_State * state); extern void ARMul_CoProExit (ARMul_State * state); extern void ARMul_CoProAttach (ARMul_State * state, unsigned number, ARMul_CPInits * init, ARMul_CPExits * exit, ARMul_LDCs * ldc, ARMul_STCs * stc, ARMul_MRCs * mrc, ARMul_MCRs * mcr, ARMul_CDPs * cdp, ARMul_CPReads * read, ARMul_CPWrites * write); extern void ARMul_CoProDetach (ARMul_State * state, unsigned number); extern void XScale_check_memacc (ARMul_State * state, ARMword * address, int store); extern void XScale_set_fsr_far (ARMul_State * state, ARMword fsr, ARMword far); extern int XScale_debug_moe (ARMul_State * state, int moe); /***************************************************************************\ * Definitons of things in the host environment * \***************************************************************************/ extern unsigned ARMul_OSInit (ARMul_State * state); extern void ARMul_OSExit (ARMul_State * state); extern unsigned ARMul_OSHandleSWI (ARMul_State * state, ARMword number); extern ARMword ARMul_OSLastErrorP (ARMul_State * state); extern ARMword ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr); extern unsigned ARMul_OSException (ARMul_State * state, ARMword vector, ARMword pc); extern int rdi_log; /***************************************************************************\ * Host-dependent stuff * \***************************************************************************/ #ifdef macintosh pascal void SpinCursor (short increment); /* copied from CursorCtl.h */ # define HOURGLASS SpinCursor( 1 ) # define HOURGLASS_RATE 1023 /* 2^n - 1 */ #endif extern void ARMul_UndefInstr (ARMul_State *, ARMword); extern void ARMul_FixCPSR (ARMul_State *, ARMword, ARMword); extern void ARMul_FixSPSR (ARMul_State *, ARMword, ARMword); extern void ARMul_ConsolePrint (ARMul_State *, const char *, ...); extern void ARMul_SelectProcessor (ARMul_State *, unsigned);