diff options
Diffstat (limited to 'src/core/arm/interpreter/arminit.cpp')
| -rw-r--r-- | src/core/arm/interpreter/arminit.cpp | 417 |
1 files changed, 26 insertions, 391 deletions
diff --git a/src/core/arm/interpreter/arminit.cpp b/src/core/arm/interpreter/arminit.cpp index 03bca287..a52d1496 100644 --- a/src/core/arm/interpreter/arminit.cpp +++ b/src/core/arm/interpreter/arminit.cpp @@ -15,8 +15,6 @@ 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 "core/arm/skyeye_common/armdefs.h" #include "core/arm/skyeye_common/armemu.h" @@ -24,87 +22,46 @@ * Definitions for the emulator architecture * \***************************************************************************/ -void ARMul_EmulateInit (void); -ARMul_State *ARMul_NewState (ARMul_State * state); -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); +void ARMul_EmulateInit(); +ARMul_State* ARMul_NewState(ARMul_State* state); +void ARMul_Reset (ARMul_State* state); 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 debugmode -extern int debugmode; -extern int remote_interrupt( void ); - - -void arm_dyncom_Abort(ARMul_State * state, ARMword vector) -{ - ARMul_Abort(state, vector); -} - - -/* ahe-ykl : the following code to initialize user mode - code is architecture dependent and probably model dependant. */ - -/*#include "skyeye_arch.h" -#include "skyeye_pref.h" -#include "skyeye_exec_info.h" -#include "bank_defs.h"*/ -//#include "armcpu.h" -//#include "skyeye_callback.h" - -/* - ARM_CPU_State* cpu = get_current_cpu(); - arm_core_t* core = &cpu->core[0]; - - uint32_t sp = info->initial_sp; +ARMword ARMul_ImmedTable[4096]; // immediate DP LHS values +char ARMul_BitList[256]; // number of bits in a byte table - core->Cpsr = 0x10; // User mode -// FIXME: may need to add thumb -core->Reg[13] = sp; -core->Reg[10] = info->start_data; -core->Reg[0] = 0; -bus_read(32, sp + 4, &(core->Reg[1])); -bus_read(32, sp + 8, &(core->Reg[2])); -*/ /***************************************************************************\ * Call this routine once to set up the emulator's tables. * \***************************************************************************/ - -void -ARMul_EmulateInit (void) +void ARMul_EmulateInit() { unsigned int i, j; - for (i = 0; i < 4096; i++) { /* the values of 12 bit dp rhs's */ + // the values of 12 bit dp rhs's + for (i = 0; i < 4096; i++) { ARMul_ImmedTable[i] = ROTATER (i & 0xffL, (i >> 7L) & 0x1eL); } - for (i = 0; i < 256; ARMul_BitList[i++] = 0); /* how many bits in LSM */ + // how many bits in LSM + for (i = 0; i < 256; ARMul_BitList[i++] = 0); for (j = 1; j < 256; j <<= 1) for (i = 0; i < 256; i++) if ((i & j) > 0) ARMul_BitList[i]++; + // you always need 4 times these values for (i = 0; i < 256; i++) - ARMul_BitList[i] *= 4; /* you always need 4 times these values */ + ARMul_BitList[i] *= 4; } /***************************************************************************\ * Returns a new instantiation of the ARMulator's state * \***************************************************************************/ - -ARMul_State * -ARMul_NewState (ARMul_State *state) +ARMul_State* ARMul_NewState(ARMul_State* state) { unsigned i, j; @@ -120,7 +77,6 @@ ARMul_NewState (ARMul_State *state) state->Spsr[i] = 0; state->Mode = 0; - state->CallDebug = FALSE; state->Debug = FALSE; state->VectorCatch = 0; state->Aborted = FALSE; @@ -128,34 +84,6 @@ ARMul_NewState (ARMul_State *state) state->Inted = 3; state->LastInted = 3; - state->CommandLine = NULL; - - state->EventSet = 0; - state->Now = 0; - state->EventPtr = - (struct EventNode **) malloc ((unsigned) EVENTLISTSIZE * - sizeof (struct EventNode *)); -#if DIFF_STATE - state->state_log = fopen("/data/state.log", "w"); - printf("create pc log file.\n"); -#endif - if (state->EventPtr == NULL) { - printf ("SKYEYE: ARMul_NewState malloc state->EventPtr error\n"); - exit(-1); - //skyeye_exit (-1); - } - for (i = 0; i < EVENTLISTSIZE; i++) - *(state->EventPtr + i) = NULL; -#if SAVE_LOG - state->state_log = fopen("/tmp/state.log", "w"); - printf("create pc log file.\n"); -#else -#if DIFF_LOG - state->state_log = fopen("/tmp/state.log", "r"); - printf("loaded pc log file.\n"); -#endif -#endif - #ifdef ARM61 state->prog32Sig = LOW; state->data32Sig = LOW; @@ -167,29 +95,14 @@ ARMul_NewState (ARMul_State *state) state->lateabtSig = HIGH; state->bigendSig = LOW; - //chy:2003-08-19 - state->LastTime = 0; - state->CP14R0_CCD = -1; - - /* ahe-ykl: common function for interpret and dyncom */ - /*sky_pref_t *pref = get_skyeye_pref(); - if (pref->user_mode_sim) - register_callback(arm_user_mode_init, Bootmach_callback); - */ - - memset(&state->exclusive_tag_array[0], 0xFF, sizeof(state->exclusive_tag_array[0]) * 128); - state->exclusive_access_state = 0; - //state->cpu = (cpu_config_t *) malloc (sizeof (cpu_config_t)); - //state->mem_bank = (mem_config_t *) malloc (sizeof (mem_config_t)); - return (state); + return state; } /***************************************************************************\ * Call this routine to set ARMulator to model a certain processor * \***************************************************************************/ -void -ARMul_SelectProcessor (ARMul_State * state, unsigned properties) +void ARMul_SelectProcessor(ARMul_State* state, unsigned properties) { if (properties & ARM_Fix26_Prop) { state->prog32Sig = LOW; @@ -198,27 +111,16 @@ ARMul_SelectProcessor (ARMul_State * state, unsigned properties) state->prog32Sig = HIGH; state->data32Sig = HIGH; } - /* 2004-05-09 chy - below 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 */; - /* jeff.du 2010-08-05 */ - state->is_v6 = (properties & ARM_v6_Prop) ? HIGH : LOW; - state->is_ep9312 = (properties & ARM_ep9312_Prop) ? HIGH : LOW; - //chy 2005-09-19 - state->is_pxa27x = (properties & ARM_PXA27X_Prop) ? HIGH : LOW; - /* shenoubang 2012-3-11 */ - state->is_v7 = (properties & ARM_v7_Prop) ? HIGH : LOW; + state->is_v4 = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0; + state->is_v5 = (properties & ARM_v5_Prop) != 0; + state->is_v5e = (properties & ARM_v5e_Prop) != 0; + state->is_XScale = (properties & ARM_XScale_Prop) != 0; + state->is_iWMMXt = (properties & ARM_iWMMXt_Prop) != 0; + state->is_v6 = (properties & ARM_v6_Prop) != 0; + state->is_ep9312 = (properties & ARM_ep9312_Prop) != 0; + state->is_pxa27x = (properties & ARM_PXA27X_Prop) != 0; + state->is_v7 = (properties & ARM_v7_Prop) != 0; /* Only initialse the coprocessor support once we know what kind of chip we are dealing with. */ @@ -229,11 +131,8 @@ ARMul_SelectProcessor (ARMul_State * state, unsigned properties) /***************************************************************************\ * Call this routine to set up the initial machine state (or perform a RESET * \***************************************************************************/ - -void -ARMul_Reset (ARMul_State * state) +void ARMul_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; @@ -244,15 +143,13 @@ ARMul_Reset (ARMul_State * state) 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; @@ -261,266 +158,4 @@ ARMul_Reset (ARMul_State * state) state->AbortAddr = 1; state->NumInstrs = 0; - state->NumNcycles = 0; - state->NumScycles = 0; - state->NumIcycles = 0; - state->NumCcycles = 0; - state->NumFcycles = 0; - - //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); /* move to memory/ram.c */ - - //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; -#ifdef 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_SPEED -static ARMul_State *dbct_test_speed_state = NULL; -static void -dbct_test_speed_sig(int signo) -{ - printf("\n0x%llx %llu\n", dbct_test_speed_state->instr_count, dbct_test_speed_state->instr_count); - exit(0); - //skyeye_exit(0); -} -#endif //DBCT_TEST_SPEED -//AJ2D-------------------------------------------------------------------------- - -ARMword -ARMul_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; - act.sa_flags = SA_RESTART; - //cygwin don't support ITIMER_VIRTUAL or ITIMER_PROF -#ifndef __CYGWIN__ - if (sigaction(SIGVTALRM, &act, NULL) == -1) { -#else - if (sigaction(SIGALRM, &act, NULL) == -1) { -#endif //__CYGWIN__ - fprintf(stderr, "init timer error.\n"); - exit(-1); - //skyeye_exit(-1); - } - if (skyeye_config.dbct_test_speed_sec) { - value.it_value.tv_sec = skyeye_config.dbct_test_speed_sec; - } else { - value.it_value.tv_sec = DBCT_TEST_SPEED_SEC; - } - printf("dbct_test_speed_sec = %ld\n", value.it_value.tv_sec); - value.it_value.tv_usec = 0; - value.it_interval.tv_sec = 0; - value.it_interval.tv_usec = 0; -#ifndef __CYGWIN__ - if (setitimer(ITIMER_VIRTUAL, &value, NULL) == -1) { -#else - if (setitimer(ITIMER_REAL, &value, NULL) == -1) { -#endif //__CYGWIN__ - fprintf(stderr, "init timer error.\n"); - //skyeye_exit(-1); - } - } - } -#endif //DBCT_TEST_SPEED -//AJ2D-------------------------------------------------------------------------- - state->Emulate = RUN; - while (state->Emulate != STOP) { - state->Emulate = RUN; - - /*ywc 2005-03-31 */ - if (state->prog32Sig && ARMul_MODE32BIT) { -#ifdef DBCT - if (skyeye_config.no_dbct) { - pc = ARMul_Emulate32 (state); - } else { - pc = ARMul_Emulate32_dbct (state); - } -#else - pc = ARMul_Emulate32 (state); -#endif - } - - else { - //pc = ARMul_Emulate26 (state); - } - //chy 2006-02-22, should test debugmode first - //chy 2006-04-14, put below codes in ARMul_Emulate -#if 0 - if(debugmode) - if(remote_interrupt()) - state->Emulate = STOP; -#endif - } - - /* - * 2007-01-24 removed the term-io functions by Anthony Lee, - * moved to "device/uart/skyeye_uart_stdio.c". - */ - - return (pc); -} - -/***************************************************************************\ -* Emulate the execution of one instruction. Start the correct emulator * -* (Emulate26 for a 26 bit ARM and Emulate32 for a 32 bit ARM), return the * -* address of the instruction that is executed. * -\***************************************************************************/ - -ARMword -ARMul_DoInstr (ARMul_State * state) -{ - ARMword pc = 0; - - state->Emulate = ONCE; - - /*ywc 2005-03-31 */ - if (state->prog32Sig && ARMul_MODE32BIT) { -#ifdef DBCT - if (skyeye_config.no_dbct) { - pc = ARMul_Emulate32 (state); - } else { -//teawater add compile switch for DBCT GDB RSP function 2005.10.21-------------- -#ifndef DBCT_GDBRSP - printf("DBCT GDBRSP function switch is off.\n"); - printf("To use this function, open \"#define DBCT_GDBRSP\" in arch/arm/common/armdefs.h & recompile skyeye.\n"); - skyeye_exit(-1); -#endif //DBCT_GDBRSP -//AJ2D-------------------------------------------------------------------------- - pc = ARMul_Emulate32_dbct (state); - } -#else - pc = ARMul_Emulate32 (state); -#endif - } - - //else - //pc = ARMul_Emulate26 (state); - - return (pc); -} - -/***************************************************************************\ -* This routine causes an Abort to occur, including selecting the correct * -* mode, register bank, and the saving of registers. Call with the * -* appropriate vector's memory address (0,4,8 ....) * -\***************************************************************************/ - -void -ARMul_Abort (ARMul_State * state, ARMword vector) -{ - ARMword temp; - int isize = INSN_SIZE; - int esize = (TFLAG ? 0 : 4); - int e2size = (TFLAG ? -4 : 0); - - state->Aborted = FALSE; - - if (state->prog32Sig) - if (ARMul_MODE26BIT) - temp = R15PC; - else - temp = state->Reg[15]; - else - temp = R15PC | ECC | ER15INT | EMODE; - - switch (vector) { - case ARMul_ResetV: /* RESET */ - SETABORT (INTBITS, state->prog32Sig ? SVC32MODE : SVC26MODE, - 0); - break; - case ARMul_UndefinedInstrV: /* Undefined Instruction */ - SETABORT (IBIT, state->prog32Sig ? UNDEF32MODE : SVC26MODE, - isize); - break; - case ARMul_SWIV: /* Software Interrupt */ - SETABORT (IBIT, state->prog32Sig ? SVC32MODE : SVC26MODE, - isize); - break; - case ARMul_PrefetchAbortV: /* Prefetch Abort */ - state->AbortAddr = 1; - SETABORT (IBIT, state->prog32Sig ? ABORT32MODE : SVC26MODE, - esize); - break; - case ARMul_DataAbortV: /* Data Abort */ - SETABORT (IBIT, state->prog32Sig ? ABORT32MODE : SVC26MODE, - e2size); - break; - case ARMul_AddrExceptnV: /* Address Exception */ - SETABORT (IBIT, SVC26MODE, isize); - break; - case ARMul_IRQV: /* IRQ */ - //chy 2003-09-02 the if sentence seems no use -#if 0 - if (!state->is_XScale || !state->CPRead[13] (state, 0, &temp) - || (temp & ARMul_CP13_R0_IRQ)) -#endif - SETABORT (IBIT, - state->prog32Sig ? IRQ32MODE : IRQ26MODE, - esize); - break; - case ARMul_FIQV: /* FIQ */ - //chy 2003-09-02 the if sentence seems no use -#if 0 - if (!state->is_XScale || !state->CPRead[13] (state, 0, &temp) - || (temp & ARMul_CP13_R0_FIQ)) -#endif - SETABORT (INTBITS, - state->prog32Sig ? FIQ32MODE : FIQ26MODE, - esize); - break; - } - - if (ARMul_MODE32BIT) { - /*if (state->mmu.control & CONTROL_VECTOR) - vector += 0xffff0000; //for v4 high exception address*/ - if (state->vector_remap_flag) - vector += state->vector_remap_addr; /* support some remap function in LPC processor */ - ARMul_SetR15 (state, vector); - } else - ARMul_SetR15 (state, R15CCINTMODE | vector); } |