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Merge pull request #524 from lioncash/state 

arm: Clean up ARMul_State
pull/15/merge
bunnei 11 years ago
parent
1a82721ad2 3f00dd9117
commit
a4b1e8ce52
5 changed files with 84 additions and 138 deletions
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  1. 9
      src/core/arm/dyncom/arm_dyncom.cpp
  2. 29
      src/core/arm/interpreter/arminit.cpp
  3. 181
      src/core/arm/skyeye_common/armdefs.h
  4. 1
      src/core/core.h
  5. 2
      src/core/hle/kernel/thread.cpp

9
src/core/arm/dyncom/arm_dyncom.cpp
View File

@ -36,9 +36,8 @@ ARM_DynCom::ARM_DynCom() {
state->NextInstr = RESUME; // NOTE: This will be overwritten by LoadContext
state->Emulate = 3;
state->pc = state->Reg[15] = 0x00000000;
state->Reg[15] = 0x00000000;
state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack
state->servaddr = 0xFFFF0000;
state->NirqSig = HIGH;
VFPInit(state.get()); // Initialize the VFP
@ -50,7 +49,7 @@ ARM_DynCom::~ARM_DynCom() {
}
void ARM_DynCom::SetPC(u32 pc) {
state->pc = state->Reg[15] = pc;
state->Reg[15] = pc;
}
u32 ARM_DynCom::GetPC() const {
@ -106,7 +105,6 @@ void ARM_DynCom::SaveContext(Core::ThreadContext& ctx) {
ctx.fpscr = state->VFP[1];
ctx.fpexc = state->VFP[2];
ctx.reg_15 = state->Reg[15];
ctx.mode = state->NextInstr;
}
@ -116,13 +114,12 @@ void ARM_DynCom::LoadContext(const Core::ThreadContext& ctx) {
state->Reg[13] = ctx.sp;
state->Reg[14] = ctx.lr;
state->pc = ctx.pc;
state->Reg[15] = ctx.pc;
state->Cpsr = ctx.cpsr;
state->VFP[1] = ctx.fpscr;
state->VFP[2] = ctx.fpexc;
state->Reg[15] = ctx.reg_15;
state->NextInstr = ctx.mode;
}

29
src/core/arm/interpreter/arminit.cpp
View File

@ -95,12 +95,6 @@ ARMul_State* ARMul_NewState(ARMul_State* state)
state->lateabtSig = HIGH;
state->bigendSig = LOW;
//chy:2003-08-19
state->CP14R0_CCD = -1;
memset(&state->exclusive_tag_array[0], 0xFF, sizeof(state->exclusive_tag_array[0]) * 128);
state->exclusive_access_state = 0;
return state;
}
@ -118,15 +112,15 @@ void ARMul_SelectProcessor(ARMul_State* state, unsigned properties)
state->data32Sig = 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 = (properties & ARM_v6_Prop) ? HIGH : LOW;
state->is_ep9312 = (properties & ARM_ep9312_Prop) ? HIGH : LOW;
state->is_pxa27x = (properties & ARM_PXA27X_Prop) ? HIGH : LOW;
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. */
@ -164,9 +158,4 @@ void 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;
}

181
src/core/arm/skyeye_common/armdefs.h
View File

@ -74,88 +74,69 @@ typedef unsigned ARMul_CPWrites(ARMul_State* state, unsigned reg, ARMword value)
#define VFP_REG_NUM 64
struct ARMul_State
{
ARMword Emulate; /* to start and stop emulation */
unsigned EndCondition; /* reason for stopping */
unsigned ErrorCode; /* type of illegal instruction */
ARMword Emulate; // To start and stop emulation
unsigned EndCondition; // Reason for stopping
unsigned ErrorCode; // Type of illegal instruction
/* Order of the following register should not be modified */
ARMword Reg[16]; /* the current register file */
ARMword Cpsr; /* the current psr */
// Order of the following register should not be modified
ARMword Reg[16]; // The current register file
ARMword Cpsr; // The current PSR
ARMword Spsr_copy;
ARMword phys_pc;
ARMword Reg_usr[2];
ARMword Reg_svc[2]; /* R13_SVC R14_SVC */
ARMword Reg_abort[2]; /* R13_ABORT R14_ABORT */
ARMword Reg_undef[2]; /* R13 UNDEF R14 UNDEF */
ARMword Reg_irq[2]; /* R13_IRQ R14_IRQ */
ARMword Reg_firq[7]; /* R8---R14 FIRQ */
ARMword Spsr[7]; /* the exception psr's */
ARMword Mode; /* the current mode */
ARMword Bank; /* the current register bank */
ARMword exclusive_tag; /* the address for which the local monitor is in exclusive access mode */
ARMword Reg_svc[2]; // R13_SVC R14_SVC
ARMword Reg_abort[2]; // R13_ABORT R14_ABORT
ARMword Reg_undef[2]; // R13 UNDEF R14 UNDEF
ARMword Reg_irq[2]; // R13_IRQ R14_IRQ
ARMword Reg_firq[7]; // R8---R14 FIRQ
ARMword Spsr[7]; // The exception psr's
ARMword Mode; // The current mode
ARMword Bank; // The current register bank
ARMword exclusive_tag; // The address for which the local monitor is in exclusive access mode
ARMword exclusive_state;
ARMword exclusive_result;
ARMword CP15[VFP_BASE - CP15_BASE];
ARMword VFP[3]; /* FPSID, FPSCR, and FPEXC */
/* VFPv2 and VFPv3-D16 has 16 doubleword registers (D0-D16 or S0-S31).
VFPv3-D32/ASIMD may have up to 32 doubleword registers (D0-D31),
and only 32 singleword registers are accessible (S0-S31). */
ARMword VFP[3]; // FPSID, FPSCR, and FPEXC
// VFPv2 and VFPv3-D16 has 16 doubleword registers (D0-D16 or S0-S31).
// VFPv3-D32/ASIMD may have up to 32 doubleword registers (D0-D31),
// and only 32 singleword registers are accessible (S0-S31).
ARMword ExtReg[VFP_REG_NUM];
/* ---- End of the ordered registers ---- */
ARMword RegBank[7][16]; /* all the registers */
//chy:2003-08-19, used in arm xscale
/* 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 NFlag, ZFlag, CFlag, VFlag, IFFlags; /* dummy flags for speed */
unsigned long long int icounter, debug_icounter, kernel_icounter;
ARMword RegBank[7][16]; // all the registers
ARMword NFlag, ZFlag, CFlag, VFlag, IFFlags; // Dummy flags for speed
unsigned int shifter_carry_out;
/* add armv6 flags dyf:2010-08-09 */
// Add armv6 flags dyf:2010-08-09
ARMword GEFlag, EFlag, AFlag, QFlag;
//chy:2003-08-19, used in arm v5e|xscale
ARMword SFlag;
#ifdef MODET
ARMword TFlag; /* Thumb state */
ARMword TFlag; // Thumb state
#endif
ARMword instr, pc, temp; /* saved register state */
ARMword loaded, decoded; /* saved pipeline state */
//chy 2006-04-12 for ICE breakpoint
ARMword loaded_addr, decoded_addr; /* saved pipeline state addr*/
unsigned int NumScycles, NumNcycles, NumIcycles, NumCcycles, NumFcycles; /* emulated cycles used */
unsigned long long NumInstrs; /* the number of instructions executed */
unsigned NumInstrsToExecute;
ARMword currentexaddr;
ARMword currentexval;
ARMword currentexvald;
ARMword servaddr;
unsigned long long NumInstrs; // The number of instructions executed
unsigned NumInstrsToExecute;
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 */
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_MRRCs *MRRC[16]; /* MRRC instruction */
ARMul_MCRRs *MCRR[16]; /* MCRR 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 Debug; /* show instructions as they are executed */
unsigned NresetSig; /* reset the processor */
unsigned VectorCatch; // Caught exception mask
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_MRRCs* MRRC[16]; // MRRC instruction
ARMul_MCRRs* MCRR[16]; // MCRR 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 Debug; // Show instructions as they are executed
unsigned NresetSig; // Reset the processor
unsigned NfiqSig;
unsigned NirqSig;
@ -199,54 +180,34 @@ So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
*/
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 */
int verbose; /* non-zero means print various messages like the banner */
int mmu_inited;
//chy: 2003-08-11, for different arm core type
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_v7; /* Are we emulating a v7 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 is_pxa27x; /* Are we emulating a Intel PXA27x co-processor ? */
//chy: seems only used in xscale's CP14
ARMword CP14R0_CCD; /* used to count 64 clock cycles with CP14 R0 bit 3 set */
//teawater add for arm2x86 2005.07.05-------------------------------------------
//arm_arm A2-18
int abort_model; //0 Base Restored Abort Model, 1 the Early Abort Model, 2 Base Updated Abort Model
/*added by ksh in 2005-10-1*/
cpu_config_t *cpu;
/* added LPC remap function */
int vector_remap_flag;
u32 vector_remap_addr;
u32 vector_remap_size;
u32 step;
u32 cycle;
/* monitored memory for exclusice access */
ARMword exclusive_tag_array[128];
/* 1 means exclusive access and 0 means open access */
ARMword exclusive_access_state;
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
// For differentiating ARM core emulaiton.
bool is_v4; // Are we emulating a v4 architecture (or higher)?
bool is_v5; // Are we emulating a v5 architecture?
bool is_v5e; // Are we emulating a v5e architecture?
bool is_v6; // Are we emulating a v6 architecture?
bool is_v7; // Are we emulating a v7 architecture?
bool is_XScale; // Are we emulating an XScale architecture?
bool is_iWMMXt; // Are we emulating an iWMMXt co-processor?
bool is_ep9312; // Are we emulating a Cirrus Maverick co-processor?
bool is_pxa27x; // Are we emulating a Intel PXA27x co-processor?
// ARM_ARM A2-18
// 0 Base Restored Abort Model, 1 the Early Abort Model, 2 Base Updated Abort Model
int abort_model;
// Added by ksh in 2005-10-1
cpu_config_t* cpu;
u32 CurrInstr;
u32 last_pc; /* the last pc executed */
u32 last_instr; /* the last inst executed */
u32 last_pc; // The last PC executed
u32 last_instr; // The last instruction executed
u32 WriteAddr[17];
u32 WriteData[17];
u32 WritePc[17];

1
src/core/core.h
View File

@ -23,7 +23,6 @@ struct ThreadContext {
u32 fpexc;
// These are not part of native ThreadContext, but needed by emu
u32 reg_15;
u32 mode;
};

2
src/core/hle/kernel/thread.cpp
View File

@ -50,7 +50,7 @@ static void ResetThread(Thread* t, u32 arg, s32 lowest_priority) {
memset(&t->context, 0, sizeof(Core::ThreadContext));
t->context.cpu_registers[0] = arg;
t->context.pc = t->context.reg_15 = t->entry_point;
t->context.pc = t->entry_point;
t->context.sp = t->stack_top;
t->context.cpsr = 0x1F; // Usermode

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