/*  arminit.c -- ARMulator initialization:  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */#include <unistd.h>#include "armdefs.h"#include "armemu.h"/***************************************************************************\*                 Definitions for the emulator architecture                 *\***************************************************************************/void ARMul_EmulateInit (void);ARMul_State *ARMul_NewState (void);void ARMul_Reset (ARMul_State * state);ARMword ARMul_DoCycle (ARMul_State * state);unsigned ARMul_DoCoPro (ARMul_State * state);ARMword ARMul_DoProg (ARMul_State * state);ARMword ARMul_DoInstr (ARMul_State * state);void ARMul_Abort (ARMul_State * state, ARMword address);unsigned ARMul_MultTable[32] =	{ 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9,	10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 16};ARMword ARMul_ImmedTable[4096];	/* immediate DP LHS values */char ARMul_BitList[256];	/* number of bits in a byte table *///chy 2006-02-22 add test debugmodeextern int debugmode;extern int remote_interrupt( void );/***************************************************************************\*         Call this routine once to set up the emulator's tables.           *\***************************************************************************/voidARMul_EmulateInit (void){	unsigned int i, j;	for (i = 0; i < 4096; i++) {	/* the values of 12 bit dp rhs's */		ARMul_ImmedTable[i] = ROTATER (i & 0xffL, (i >> 7L) & 0x1eL);	}	for (i = 0; i < 256; ARMul_BitList[i++] = 0);	/* how many bits in LSM */	for (j = 1; j < 256; j <<= 1)		for (i = 0; i < 256; i++)			if ((i & j) > 0)				ARMul_BitList[i]++;	for (i = 0; i < 256; i++)		ARMul_BitList[i] *= 4;	/* you always need 4 times these values */}/***************************************************************************\*            Returns a new instantiation of the ARMulator's state           *\***************************************************************************/ARMul_State *ARMul_NewState (void){	ARMul_State *state;	unsigned i, j;	state = (ARMul_State *) malloc (sizeof (ARMul_State));	if (state == NULL) {		printf ("SKYEYE: ARMul_NewState malloc state error\n");		skyeye_exit (-1);	}	memset (state, 0, sizeof (ARMul_State));	state->Emulate = RUN;	for (i = 0; i < 16; i++) {		state->Reg[i] = 0;		for (j = 0; j < 7; j++)			state->RegBank[j][i] = 0;	}	for (i = 0; i < 7; i++)		state->Spsr[i] = 0;	state->Mode = 0;	state->CallDebug = FALSE;	state->Debug = FALSE;	state->VectorCatch = 0;	state->Aborted = FALSE;	state->Reseted = FALSE;	state->Inted = 3;	state->LastInted = 3;	state->MemInPtr = NULL;	state->MemOutPtr = NULL;	state->MemSparePtr = NULL;	state->MemSize = 0;	state->OSptr = NULL;	state->CommandLine = NULL;	state->EventSet = 0;	state->Now = 0;	state->EventPtr =		(struct EventNode **) malloc ((unsigned) EVENTLISTSIZE *					      sizeof (struct EventNode *));	if (state->EventPtr == NULL) {		printf ("SKYEYE: ARMul_NewState malloc state->EventPtr error\n");		skyeye_exit (-1);	}	for (i = 0; i < EVENTLISTSIZE; i++)		*(state->EventPtr + i) = NULL;#ifdef ARM61	state->prog32Sig = LOW;	state->data32Sig = LOW;#else	state->prog32Sig = HIGH;	state->data32Sig = HIGH;#endif	state->lateabtSig = HIGH;	state->bigendSig = LOW;	//chy:2003-08-19 	state->LastTime = 0;	state->CP14R0_CCD = -1;	//ARMul_Reset (state);	/*ywc 2005-03-31 */	/*	   if(!skyeye_config.no_dbct){	   //teawater add for arm2x86 2005.02.14-------------------------------------------	   state->tea_break_ok = 0;	   state->tea_break_addr = 0;	   state->tea_pc = 0;	   if (arm2x86_init()) {	   printf("SKYEYE: arm2x86_init error\n");	   exit(-1);	   }	   //AJ2D--------------------------------------------------------------------------	   }	 */	state->cpu = (cpu_config_t *) malloc (sizeof (cpu_config_t));	state->mem_bank = (mem_config_t *) malloc (sizeof (mem_config_t));	return (state);}/***************************************************************************\*       Call this routine to set ARMulator to model a certain processor     *\***************************************************************************/voidARMul_SelectProcessor (ARMul_State * state, unsigned properties){	if (properties & ARM_Fix26_Prop) {		state->prog32Sig = LOW;		state->data32Sig = LOW;	}	else {		state->prog32Sig = HIGH;		state->data32Sig = HIGH;	}/* 2004-05-09 chybelow line sould be in skyeye_mach_XXX.c 's XXX_mach_init function*/	// state->lateabtSig = HIGH;	state->is_v4 =		(properties & (ARM_v4_Prop | ARM_v5_Prop)) ? HIGH : LOW;	state->is_v5 = (properties & ARM_v5_Prop) ? HIGH : LOW;	state->is_v5e = (properties & ARM_v5e_Prop) ? HIGH : LOW;	state->is_XScale = (properties & ARM_XScale_Prop) ? HIGH : LOW;	state->is_iWMMXt = (properties & ARM_iWMMXt_Prop) ? HIGH : LOW;	state->is_v6 = LOW;	state->is_ep9312 = (properties & ARM_ep9312_Prop) ? HIGH : LOW;	//chy 2005-09-19	state->is_pxa27x = (properties & ARM_PXA27X_Prop) ? HIGH : LOW;	/* Only initialse the coprocessor support once we	   know what kind of chip we are dealing with.  */	ARMul_CoProInit (state);}/***************************************************************************\* Call this routine to set up the initial machine state (or perform a RESET *\***************************************************************************/voidARMul_Reset (ARMul_State * state){	//fprintf(stderr,"armul_reset 0: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	state->NextInstr = 0;	if (state->prog32Sig) {		state->Reg[15] = 0;		state->Cpsr = INTBITS | SVC32MODE;		state->Mode = SVC32MODE;	}	else {		state->Reg[15] = R15INTBITS | SVC26MODE;		state->Cpsr = INTBITS | SVC26MODE;		state->Mode = SVC26MODE;	}	//fprintf(stderr,"armul_reset 1: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	ARMul_CPSRAltered (state);	state->Bank = SVCBANK;	FLUSHPIPE;	state->EndCondition = 0;	state->ErrorCode = 0;	//fprintf(stderr,"armul_reset 2: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	state->NresetSig = HIGH;	state->NfiqSig = HIGH;	state->NirqSig = HIGH;	state->NtransSig = (state->Mode & 3) ? HIGH : LOW;	state->abortSig = LOW;	state->AbortAddr = 1;	state->NumInstrs = 0;	state->NumNcycles = 0;	state->NumScycles = 0;	state->NumIcycles = 0;	state->NumCcycles = 0;	state->NumFcycles = 0;#ifdef ASIM	(void) ARMul_MemoryInit ();	ARMul_OSInit (state);#endif	//fprintf(stderr,"armul_reset 3: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	mmu_reset (state);	//fprintf(stderr,"armul_reset 4: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	mem_reset (state);	//fprintf(stderr,"armul_reset 5: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  	/*remove later. walimis 03.7.17 */	//io_reset(state);	//lcd_disable(state);	/*ywc 2005-04-07 move from ARMul_NewState , because skyeye_config.no_dbct will	 *be configured in skyeye_option_init and it is called after ARMul_NewState*/	state->tea_break_ok = 0;	state->tea_break_addr = 0;	state->tea_pc = 0;#ifndef NO_DBCT	if (!skyeye_config.no_dbct) {		//teawater add for arm2x86 2005.02.14-------------------------------------------		if (arm2x86_init (state)) {			printf ("SKYEYE: arm2x86_init error\n");			skyeye_exit (-1);		}		//AJ2D--------------------------------------------------------------------------	}#endif}/***************************************************************************\* Emulate the execution of an entire program.  Start the correct emulator   ** (Emulate26 for a 26 bit ARM and Emulate32 for a 32 bit ARM), return the   ** address of the last instruction that is executed.                         *\***************************************************************************///teawater add DBCT_TEST_SPEED 2005.10.04---------------------------------------#ifdef DBCT_TEST_SPEEDstatic ARMul_State	*dbct_test_speed_state = NULL;static voiddbct_test_speed_sig(int signo){	printf("\n0x%llx %llu\n", dbct_test_speed_state->instr_count, dbct_test_speed_state->instr_count);	skyeye_exit(0);}#endif	//DBCT_TEST_SPEED//AJ2D--------------------------------------------------------------------------ARMwordARMul_DoProg (ARMul_State * state){	ARMword pc = 0;	/*	 * 2007-01-24 removed the term-io functions by Anthony Lee,	 * moved to "device/uart/skyeye_uart_stdio.c".	 *///teawater add DBCT_TEST_SPEED 2005.10.04---------------------------------------#ifdef DBCT_TEST_SPEED	{		if (!dbct_test_speed_state) {			//init timer			struct itimerval	value;			struct sigaction	act;			dbct_test_speed_state = state;			state->instr_count = 0;			act.sa_handler = dbct_test_speed_sig;