#include "GBA.h"
#include "GBAcpu.h"
#include "GBAinline.h"
#include "Globals.h"
#include "Sound.h"
#include "bios.h"
#ifdef _MSC_VER
// Disable "empty statement" warnings
# pragma warning(disable: 4390)
// Visual C's inline assembler treats "offset" as a reserved word, so we
// tell it otherwise. If you want to use it, write "OFFSET" in capitals.
# define offset offset_
#endif
///////////////////////////////////////////////////////////////////////////
static int clockTicks;
static INSN_REGPARM void armUnknownInsn(uint32_t)
{
CPUUndefinedException();
}
// Common macros //////////////////////////////////////////////////////////
template<typename T> static inline T NEG(const T &i) { return i >> 31; }
template<typename T> static inline T POS(const T &i) { return ~i >> 31; }
// The following macros are used for optimization; any not defined for a
// particular compiler/CPU combination default to the C core versions.
//
// ALU_INIT_C: Used at the beginning of ALU instructions (AND/EOR/...).
// (ALU_INIT_NC) Can consist of variable declarations, like the C core,
// or the start of a continued assembly block, like the
// x86-optimized version. The _C version is used when the
// carry flag from the shift operation is needed (logical
// operations that set condition codes, like ANDS); the
// _NC version is used when the carry result is ignored.
// VALUE_XXX: Retrieve the second operand's value for an ALU instruction.
// The _C and _NC versions are used the same way as ALU_INIT.
// OP_XXX: ALU operations. XXX is the instruction name.
// ALU_FINISH: Appended to all ALU instructions. Usually empty, but if
// ALU_INIT started a block ALU_FINISH can be used to end it
// (as with the asm(...) statement in the x86 core).
// SETCOND_NONE: Used in multiply instructions in place of SETCOND_MUL
// when the condition codes are not set. Usually empty.
// SETCOND_MUL: Used in multiply instructions to set the condition codes.
// ROR_IMM_MSR: Used to rotate the immediate operand for MSR.
// ROR_OFFSET: Used to rotate the `offset' parameter for LDR and STR
// instructions.
// RRX_OFFSET: Used to rotate (RRX) the `offset' parameter for LDR and
// STR instructions.
// C core
#define C_SETCOND_LOGICAL \
N_FLAG = static_cast<int32_t>(res) < 0; \
Z_FLAG = !res; \
C_FLAG = C_OUT;
#define C_SETCOND_ADD \
N_FLAG = static_cast<int32_t>(res) < 0; \
Z_FLAG = !res; \
V_FLAG = !!((NEG(lhs) & NEG(rhs) & POS(res)) | (POS(lhs) & POS(rhs) & NEG(res))); \
C_FLAG = !!((NEG(lhs) & NEG(rhs)) | (NEG(lhs) & POS(res)) | (NEG(rhs) & POS(res)));
#define C_SETCOND_SUB \
N_FLAG = static_cast<int32_t>(res) < 0; \
Z_FLAG = !res; \
V_FLAG = !!((NEG(lhs) & POS(rhs) & POS(res)) | (POS(lhs) & NEG(rhs) & NEG(res))); \
C_FLAG = !!((NEG(lhs) & POS(rhs)) | (NEG(lhs) & POS(res)) | (POS(rhs) & POS(res)));
#define ALU_INIT_C \
int dest = (opcode >> 12) & 15; \
bool C_OUT = C_FLAG; \
uint32_t value;
// OP Rd,Rb,Rm LSL #
#define VALUE_LSL_IMM_C \
unsigned shift = (opcode >> 7) & 0x1F; \
if (LIKELY(!shift)) /* LSL #0 most common? */ \
value = reg[opcode & 0x0F].I; \
else \
{ \
uint32_t v = reg[opcode & 0x0F].I; \
C_OUT = !!((v >> (32 - shift)) & 1); \
value = v << shift; \
}
// OP Rd,Rb,Rm LSL Rs
#define VALUE_LSL_REG_C \
uint32_t shift = reg[(opcode >> 8) & 15].B.B0; \
uint32_t rm = reg[opcode & 0x0F].I; \
if ((opcode & 0x0F) == 15) \
rm += 4; \
if (LIKELY(shift)) \
{ \
if (shift == 32) \
{ \
value = 0; \
C_OUT = !!(rm & 1); \
} \
else if (LIKELY(shift < 32)) \
{ \
uint32_t v = rm; \
C_OUT = !!((v >> (32 - shift)) & 1); \
value = v << shift; \
} \
else \
{ \
value = 0; \
C_OUT = false; \
} \
} \
else \
value = rm;
// OP Rd,Rb,Rm LSR #
#define VALUE_LSR_IMM_C \
uint32_t shift = (opcode >> 7) & 0x1F; \
if (LIKELY(shift)) \
{ \
uint32_t v = reg[opcode & 0x0F].I; \
C_OUT = !!((v >> (shift - 1)) & 1); \
value = v >> shift; \
} \
else \
{ \
value = 0; \
C_OUT = !!(reg[opcode & 0x0F].I & 0x80000000); \
}
// OP Rd,Rb,Rm LSR Rs
#define VALUE_LSR_REG_C \
unsigned shift = reg[(opcode >> 8) & 15].B.B0; \
uint32_t rm = reg[opcode & 0x0F].I; \
if ((opcode & 0x0F) == 15) \
rm += 4; \
if (LIKELY(shift)) \
{ \
if (shift == 32) \
{ \
value = 0; \
C_OUT = !!(rm & 0x80000000); \
} \
else if (LIKELY(shift < 32)) \
{ \
uint32_t v = rm; \
C_OUT = !!((v >> (shift - 1)) & 1); \
value = v >> shift; \
} \
else \
{ \
value = 0; \
C_OUT = false; \
} \
} \
else \
value = rm;
// OP Rd,Rb,Rm ASR #
#define VALUE_ASR_IMM_C \
unsigned shift = (opcode >> 7) & 0x1F; \
if (LIKELY(shift)) \
{ \
/* VC++ BUG: u32 v; (s32)v>>n is optimized to shr! */ \
int32_t v = reg[opcode & 0x0F].I; \
C_OUT = !!((v >> static_cast<int>(shift - 1)) & 1); \
value = v >> static_cast<int>(shift); \
} \
else \
{ \
if (reg[opcode & 0x0F].I & 0x80000000) \
{ \
value = 0xFFFFFFFF; \
C_OUT = true; \
} \
else \
{ \
value = 0; \
C_OUT = false; \
} \
}
// OP Rd,Rb,Rm ASR Rs
#define VALUE_ASR_REG_C \
unsigned shift = reg[(opcode >> 8) & 15].B.B0; \
uint32_t rm = reg[opcode & 0x0F].I; \
if ((opcode & 0x0F) == 15) \
rm += 4; \
if (LIKELY(shift < 32)) \
{ \
if (LIKELY(shift)) \
{ \
int32_t v = rm; \
C_OUT = !!((v >> static_cast<int>(shift - 1)) & 1); \
value = v >> static_cast<int>(shift); \
} \
else \
value = rm; \
} \
else \
{ \
if (reg[opcode & 0x0F].I & 0x80000000) \
{ \
value = 0xFFFFFFFF; \
C_OUT = true; \
} \
else \
{ \
value = 0; \
C_OUT = false; \
} \
}
// OP Rd,Rb,Rm ROR #
#define VALUE_ROR_IMM_C \
unsigned shift = (opcode >> 7) & 0x1F; \
uint32_t v = reg[opcode & 0x0F].I; \
if (LIKELY(shift)) \
{ \
C_OUT = !!((v >> (shift - 1)) & 1); \
value = (v << (32 - shift)) | (v >> shift); \
} \
else \
{ \
C_OUT = !!(v & 1); \
value = (v >> 1) | (C_FLAG << 31); \
}
// OP Rd,Rb,Rm ROR Rs
#define VALUE_ROR_REG_C \
unsigned shift = reg[(opcode >> 8) & 15].B.B0; \
uint32_t rm = reg[opcode & 0x0F].I; \
if ((opcode & 0x0F) == 15) \
rm += 4; \
if (LIKELY(shift & 0x1F)) \
{ \
uint32_t v = rm; \
C_OUT = !!((v >> (shift - 1)) & 1); \
value = (v << (32 - shift)) | (v >> shift); \
} \
else \
{ \
value = rm; \
if (shift) \
C_OUT = !!(value & 0x80000000); \
}
// OP Rd,Rb,# ROR #
#define VALUE_IMM_C \
int shift = (opcode & 0xF00) >> 7; \
if (UNLIKELY(shift)) \
{ \
uint32_t v = opcode & 0xFF; \
C_OUT = !!((v >> (shift - 1)) & 1); \
value = (v << (32 - shift)) | (v >> shift); \
} \
else \
value = opcode & 0xFF;
// Make the non-carry versions default to the carry versions
// (this is fine for C--the compiler will optimize the dead code out)
#define ALU_INIT_NC ALU_INIT_C
#define VALUE_LSL_IMM_NC VALUE_LSL_IMM_C
#define VALUE_LSL_REG_NC VALUE_LSL_REG_C
#define VALUE_LSR_IMM_NC VALUE_LSR_IMM_C
#define VALUE_LSR_REG_NC VALUE_LSR_REG_C
#define VALUE_ASR_IMM_NC VALUE_ASR_IMM_C
#define VALUE_ASR_REG_NC VALUE_ASR_REG_C
#define VALUE_ROR_IMM_NC VALUE_ROR_IMM_C
#define VALUE_ROR_REG_NC VALUE_ROR_REG_C
#define VALUE_IMM_NC VALUE_IMM_C
#define C_CHECK_PC(SETCOND) if (LIKELY(dest != 15)) { SETCOND }
#define OP_AND \
uint32_t res = reg[(opcode >> 16) & 15].I & value; \
reg[dest].I = res;
#define OP_ANDS OP_AND C_CHECK_PC(C_SETCOND_LOGICAL)
#define OP_EOR \
uint32_t res = reg[(opcode >> 16) & 15].I ^ value; \
reg[dest].I = res;
#define OP_EORS OP_EOR C_CHECK_PC(C_SETCOND_LOGICAL)
#define OP_SUB \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs - rhs; \
reg[dest].I = res;
#define OP_SUBS OP_SUB C_CHECK_PC(C_SETCOND_SUB)
#define OP_RSB \
uint32_t lhs = value; \
uint32_t rhs = reg[(opcode >> 16) & 15].I; \
uint32_t res = lhs - rhs; \
reg[dest].I = res;
#define OP_RSBS OP_RSB C_CHECK_PC(C_SETCOND_SUB)
#define OP_ADD \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs + rhs; \
reg[dest].I = res;
#define OP_ADDS OP_ADD C_CHECK_PC(C_SETCOND_ADD)
#define OP_ADC \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs + rhs + static_cast<uint32_t>(C_FLAG); \
reg[dest].I = res;
#define OP_ADCS OP_ADC C_CHECK_PC(C_SETCOND_ADD)
#define OP_SBC \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs - rhs - !static_cast<uint32_t>(C_FLAG); \
reg[dest].I = res;
#define OP_SBCS OP_SBC C_CHECK_PC(C_SETCOND_SUB)
#define OP_RSC \
uint32_t lhs = value; \
uint32_t rhs = reg[(opcode >> 16) & 15].I; \
uint32_t res = lhs - rhs - !static_cast<uint32_t>(C_FLAG); \
reg[dest].I = res;
#define OP_RSCS OP_RSC C_CHECK_PC(C_SETCOND_SUB)
#define OP_TST \
uint32_t res = reg[(opcode >> 16) & 0x0F].I & value; \
C_SETCOND_LOGICAL;
#define OP_TEQ \
uint32_t res = reg[(opcode >> 16) & 0x0F].I ^ value; \
C_SETCOND_LOGICAL;
#define OP_CMP \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs - rhs; \
C_SETCOND_SUB;
#define OP_CMN \
uint32_t lhs = reg[(opcode >> 16) & 15].I; \
uint32_t rhs = value; \
uint32_t res = lhs + rhs; \
C_SETCOND_ADD;
#define OP_ORR \
uint32_t res = reg[(opcode >> 16) & 0x0F].I | value; \
reg[dest].I = res;
#define OP_ORRS OP_ORR C_CHECK_PC(C_SETCOND_LOGICAL)
#define OP_MOV \
uint32_t res = value; \
reg[dest].I = res;
#define OP_MOVS OP_MOV C_CHECK_PC(C_SETCOND_LOGICAL)
#define OP_BIC \
uint32_t res = reg[(opcode >> 16) & 0x0F].I & ~value; \
reg[dest].I = res;
#define OP_BICS OP_BIC C_CHECK_PC(C_SETCOND_LOGICAL)
#define OP_MVN \
uint32_t res = ~value; \
reg[dest].I = res;
#define OP_MVNS OP_MVN C_CHECK_PC(C_SETCOND_LOGICAL)
#define SETCOND_NONE /*nothing*/
#define SETCOND_MUL \
N_FLAG = static_cast<int32_t>(reg[dest].I) < 0; \
Z_FLAG = !reg[dest].I;
#define SETCOND_MULL \
N_FLAG = !!(reg[dest].I & 0x80000000); \
Z_FLAG = !(reg[dest].I || reg[acc].I);
#define ALU_FINISH /*nothing*/
#define ROR_IMM_MSR \
uint32_t v = opcode & 0xff; \
value = (v << (32 - shift)) | (v >> shift);
#define ROR_OFFSET \
offset = (offset << (32 - shift)) | (offset >> shift);
#define RRX_OFFSET \
offset = (offset >> 1) | (static_cast<int>(C_FLAG) << 31);
// ALU ops (except multiply) //////////////////////////////////////////////
// ALU_INIT: init code (ALU_INIT_C or ALU_INIT_NC)
// GETVALUE: load value and shift/rotate (VALUE_XXX)
// OP: ALU operation (OP_XXX)
// MODECHANGE: MODECHANGE_NO or MODECHANGE_YES
// ISREGSHIFT: 1 for insns of the form ...,Rn LSL/etc Rs; 0 otherwise
// ALU_INIT, GETVALUE, OP, and ALU_FINISH are concatenated in order.
#define ALU_INSN(ALU_INIT, GETVALUE, OP, MODECHANGE, ISREGSHIFT) \
ALU_INIT GETVALUE OP ALU_FINISH; \
if (LIKELY((opcode & 0x0000F000) != 0x0000F000)) \
clockTicks = 1 + ISREGSHIFT + codeTicksAccessSeq32(armNextPC); \
else \
{ \
MODECHANGE; \
if (armState) \
{ \
reg[15].I &= 0xFFFFFFFC; \
armNextPC = reg[15].I; \
reg[15].I += 4; \
ARM_PREFETCH(); \
} \
else \
{ \
reg[15].I &= 0xFFFFFFFE; \
armNextPC = reg[15].I; \
reg[15].I += 2; \
THUMB_PREFETCH(); \
} \
clockTicks = 3 + ISREGSHIFT + codeTicksAccess32(armNextPC) + codeTicksAccessSeq32(armNextPC) + codeTicksAccessSeq32(armNextPC); \
}
#define MODECHANGE_NO /*nothing*/
#define MODECHANGE_YES CPUSwitchMode(reg[17].I & 0x1f, false);
#define DEFINE_ALU_INSN_C(CODE1, CODE2, OP, MODECHANGE) \
static INSN_REGPARM void arm##CODE1##0(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_LSL_IMM_C, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##1(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_LSL_REG_C, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##2(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_LSR_IMM_C, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##3(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_LSR_REG_C, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##4(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_ASR_IMM_C, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##5(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_ASR_REG_C, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##6(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_ROR_IMM_C, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##7(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_ROR_REG_C, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE2##0(uint32_t opcode) { ALU_INSN(ALU_INIT_C, VALUE_IMM_C, OP_##OP, MODECHANGE_##MODECHANGE, 0); }
#define DEFINE_ALU_INSN_NC(CODE1, CODE2, OP, MODECHANGE) \
static INSN_REGPARM void arm##CODE1##0(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_LSL_IMM_NC, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##1(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_LSL_REG_NC, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##2(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_LSR_IMM_NC, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##3(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_LSR_REG_NC, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##4(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_ASR_IMM_NC, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##5(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_ASR_REG_NC, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE1##6(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_ROR_IMM_NC, OP_##OP, MODECHANGE_##MODECHANGE, 0); } \
static INSN_REGPARM void arm##CODE1##7(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_ROR_REG_NC, OP_##OP, MODECHANGE_##MODECHANGE, 1); } \
static INSN_REGPARM void arm##CODE2##0(uint32_t opcode) { ALU_INSN(ALU_INIT_NC, VALUE_IMM_NC, OP_##OP, MODECHANGE_##MODECHANGE, 0); }
// AND
DEFINE_ALU_INSN_NC(00, 20, AND, NO)
// ANDS
DEFINE_ALU_INSN_C(01, 21, ANDS, YES)
// EOR
DEFINE_ALU_INSN_NC(02, 22, EOR, NO)
// EORS
DEFINE_ALU_INSN_C(03, 23, EORS, YES)
// SUB
DEFINE_ALU_INSN_NC(04, 24, SUB, NO)
// SUBS
DEFINE_ALU_INSN_NC(05, 25, SUBS, YES)
// RSB
DEFINE_ALU_INSN_NC(06, 26, RSB, NO)
// RSBS
DEFINE_ALU_INSN_NC(07, 27, RSBS, YES)
// ADD
DEFINE_ALU_INSN_NC(08, 28, ADD, NO)
// ADDS
DEFINE_ALU_INSN_NC(09, 29, ADDS, YES)
// ADC
DEFINE_ALU_INSN_NC(0A, 2A, ADC, NO)
// ADCS
DEFINE_ALU_INSN_NC(0B, 2B, ADCS, YES)
// SBC
DEFINE_ALU_INSN_NC(0C, 2C, SBC, NO)
// SBCS
DEFINE_ALU_INSN_NC(0D, 2D, SBCS, YES)
// RSC
DEFINE_ALU_INSN_NC(0E, 2E, RSC, NO)
// RSCS
DEFINE_ALU_INSN_NC(0F, 2F, RSCS, YES)
// TST
DEFINE_ALU_INSN_C(11, 31, TST, NO)
// TEQ
DEFINE_ALU_INSN_C(13, 33, TEQ, NO)
// CMP
DEFINE_ALU_INSN_NC(15, 35, CMP, NO)
// CMN
DEFINE_ALU_INSN_NC(17, 37, CMN, NO)
// ORR
DEFINE_ALU_INSN_NC(18, 38, ORR, NO)
// ORRS
DEFINE_ALU_INSN_C(19, 39, ORRS, YES)
// MOV
DEFINE_ALU_INSN_NC(1A, 3A, MOV, NO)
// MOVS
DEFINE_ALU_INSN_C(1B, 3B, MOVS, YES)
// BIC
DEFINE_ALU_INSN_NC(1C, 3C, BIC, NO)
// BICS
DEFINE_ALU_INSN_C(1D, 3D, BICS, YES)
// MVN
DEFINE_ALU_INSN_NC(1E, 3E, MVN, NO)
// MVNS
DEFINE_ALU_INSN_C(1F, 3F, MVNS, YES)
// Multiply instructions //////////////////////////////////////////////////
// OP: OP_MUL, OP_MLA etc.
// SETCOND: SETCOND_NONE, SETCOND_MUL, or SETCOND_MULL
// CYCLES: base cycle count (1, 2, or 3)
#define MUL_INSN(OP, SETCOND, CYCLES) \
int mult = opcode & 0x0F; \
uint32_t rs = reg[(opcode >> 8) & 0x0F].I; \
int acc = (opcode >> 12) & 0x0F; /* or destLo */ \
int dest = (opcode >> 16) & 0x0F; /* or destHi */ \
OP; \
SETCOND; \
if (static_cast<int32_t>(rs) < 0) \
rs = ~rs; \
if (!(rs & 0xFFFFFF00)) \
; /* No-op */ \
else if (!(rs & 0xFFFF0000)) \
++clockTicks; \
else if (!(rs & 0xFF000000)) \
clockTicks += 2; \
else \
clockTicks += 3; \
if (!busPrefetchCount) \
busPrefetchCount = ((busPrefetchCount + 1) << clockTicks) - 1; \
clockTicks += 1 + codeTicksAccess32(armNextPC);
#define OP_MUL \
reg[dest].I = reg[mult].I * rs;
#define OP_MLA \
reg[dest].I = reg[mult].I * rs + reg[acc].I;
#define OP_MULL(SIGN) \
SIGN##64_t res = static_cast<SIGN##64_t>(reg[mult].I) * static_cast<SIGN##64_t>(rs); \
reg[acc].I = static_cast<uint32_t>(res); \
reg[dest].I = static_cast<uint32_t>(res >> 32);
#define OP_MLAL(SIGN) \
SIGN##64_t res = (static_cast<SIGN##64_t>(reg[dest].I) << 32 | reg[acc].I) + (static_cast<SIGN##64_t>(reg[mult].I) * static_cast<SIGN##64_t>(rs)); \
reg[acc].I = static_cast<uint32_t>(res); \
reg[dest].I = static_cast<uint32_t>(res >> 32);
#define OP_UMULL OP_MULL(uint)
#define OP_UMLAL OP_MLAL(uint)
#define OP_SMULL OP_MULL(int)
#define OP_SMLAL OP_MLAL(int)
// MUL Rd, Rm, Rs
static INSN_REGPARM void arm009(uint32_t opcode) { MUL_INSN(OP_MUL, SETCOND_NONE, 1); }
// MULS Rd, Rm, Rs
static INSN_REGPARM void arm019(uint32_t opcode) { MUL_INSN(OP_MUL, SETCOND_MUL, 1); }
// MLA Rd, Rm, Rs, Rn
static INSN_REGPARM void arm029(uint32_t opcode) { MUL_INSN(OP_MLA, SETCOND_NONE, 2); }
// MLAS Rd, Rm, Rs, Rn
static INSN_REGPARM void arm039(uint32_t opcode) { MUL_INSN(OP_MLA, SETCOND_MUL, 2); }
// UMULL RdLo, RdHi, Rn, Rs
static INSN_REGPARM void arm089(uint32_t opcode) { MUL_INSN(OP_UMULL, SETCOND_NONE, 2); }
// UMULLS RdLo, RdHi, Rn, Rs
static INSN_REGPARM void arm099(uint32_t opcode) { MUL_INSN(OP_UMULL, SETCOND_MULL, 2); }
// UMLAL RdLo, RdHi, Rn, Rs
static INSN_REGPARM void arm0A9(uint32_t opcode) { MUL_INSN(OP_UMLAL, SETCOND_NONE, 3); }
// UMLALS RdLo, RdHi, Rn, Rs
static INSN_REGPARM void arm0B9(uint32_t opcode) { MUL_INSN(OP_UMLAL, SETCOND_MULL, 3); }
// SMULL RdLo, RdHi, Rm, Rs
static INSN_REGPARM void arm0C9(uint32_t opcode) { MUL_INSN(OP_SMULL, SETCOND_NONE, 2); }
// SMULLS RdLo, RdHi, Rm, Rs
static INSN_REGPARM void arm0D9(uint32_t opcode) { MUL_INSN(OP_SMULL, SETCOND_MULL, 2); }
// SMLAL RdLo, RdHi, Rm, Rs
static INSN_REGPARM void arm0E9(uint32_t opcode) { MUL_INSN(OP_SMLAL, SETCOND_NONE, 3); }
// SMLALS RdLo, RdHi, Rm, Rs
static INSN_REGPARM void arm0F9(uint32_t opcode) { MUL_INSN(OP_SMLAL, SETCOND_MULL, 3); }
// Misc instructions //////////////////////////////////////////////////////
// SWP Rd, Rm, [Rn]
static INSN_REGPARM void arm109(uint32_t opcode)
{
uint32_t address = reg[(opcode >> 16) & 15].I;
uint32_t temp = CPUReadMemory(address);
CPUWriteMemory(address, reg[opcode & 15].I);
reg[(opcode >> 12) & 15].I = temp;
clockTicks = 4 + dataTicksAccess32(address) + dataTicksAccess32(address) + codeTicksAccess32(armNextPC);
}
// SWPB Rd, Rm, [Rn]
static INSN_REGPARM void arm149(uint32_t opcode)
{
uint32_t address = reg[(opcode >> 16) & 15].I;
uint32_t temp = CPUReadByte(address);
CPUWriteByte(address, reg[opcode & 15].B.B0);
reg[(opcode >> 12) & 15].I = temp;
clockTicks = 4 + dataTicksAccess32(address) + dataTicksAccess32(address) + codeTicksAccess32(armNextPC);
}
// MRS Rd, CPSR
static INSN_REGPARM void arm100(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FFF0FFF) == 0x010F0000))
{
CPUUpdateCPSR();
reg[(opcode >> 12) & 0x0F].I = reg[16].I;
}
else
armUnknownInsn(opcode);
}
// MRS Rd, SPSR
static INSN_REGPARM void arm140(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FFF0FFF) == 0x014F0000))
reg[(opcode >> 12) & 0x0F].I = reg[17].I;
else
armUnknownInsn(opcode);
}
// MSR CPSR_fields, Rm
static INSN_REGPARM void arm120(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FF0FFF0) == 0x0120F000))
{
CPUUpdateCPSR();
uint32_t value = reg[opcode & 15].I;
uint32_t newValue = reg[16].I;
if (armMode > 0x10)
{
if (opcode & 0x00010000)
newValue = (newValue & 0xFFFFFF00) | (value & 0x000000FF);
if (opcode & 0x00020000)
newValue = (newValue & 0xFFFF00FF) | (value & 0x0000FF00);
if (opcode & 0x00040000)
newValue = (newValue & 0xFF00FFFF) | (value & 0x00FF0000);
}
if (opcode & 0x00080000)
newValue = (newValue & 0x00FFFFFF) | (value & 0xFF000000);
newValue |= 0x10;
CPUSwitchMode(newValue & 0x1F, false);
reg[16].I = newValue;
CPUUpdateFlags();
if (!armState) // this should not be allowed, but it seems to work
{
THUMB_PREFETCH();
reg[15].I = armNextPC + 2;
}
}
else
armUnknownInsn(opcode);
}
// MSR SPSR_fields, Rm
static INSN_REGPARM void arm160(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FF0FFF0) == 0x0160F000))
{
uint32_t value = reg[opcode & 15].I;
if (armMode > 0x10 && armMode < 0x1F)
{
if (opcode & 0x00010000)
reg[17].I = (reg[17].I & 0xFFFFFF00) | (value & 0x000000FF);
if (opcode & 0x00020000)
reg[17].I = (reg[17].I & 0xFFFF00FF) | (value & 0x0000FF00);
if (opcode & 0x00040000)
reg[17].I = (reg[17].I & 0xFF00FFFF) | (value & 0x00FF0000);
if (opcode & 0x00080000)
reg[17].I = (reg[17].I & 0x00FFFFFF) | (value & 0xFF000000);
}
}
else
armUnknownInsn(opcode);
}
// MSR CPSR_fields, #
static INSN_REGPARM void arm320(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FF0F000) == 0x0320F000))
{
CPUUpdateCPSR();
uint32_t value = opcode & 0xFF;
int shift = (opcode & 0xF00) >> 7;
if (shift)
{
ROR_IMM_MSR;
}
uint32_t newValue = reg[16].I;
if (armMode > 0x10)
{
if (opcode & 0x00010000)
newValue = (newValue & 0xFFFFFF00) | (value & 0x000000FF);
if (opcode & 0x00020000)
newValue = (newValue & 0xFFFF00FF) | (value & 0x0000FF00);
if (opcode & 0x00040000)
newValue = (newValue & 0xFF00FFFF) | (value & 0x00FF0000);
}
if (opcode & 0x00080000)
newValue = (newValue & 0x00FFFFFF) | (value & 0xFF000000);
newValue |= 0x10;
CPUSwitchMode(newValue & 0x1F, false);
reg[16].I = newValue;
CPUUpdateFlags();
if (!armState) // this should not be allowed, but it seems to work
{
THUMB_PREFETCH();
reg[15].I = armNextPC + 2;
}
}
else
armUnknownInsn(opcode);
}
// MSR SPSR_fields, #
static INSN_REGPARM void arm360(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FF0F000) == 0x0360F000))
{
if (armMode > 0x10 && armMode < 0x1F)
{
uint32_t value = opcode & 0xFF;
int shift = (opcode & 0xF00) >> 7;
if (shift)
{
ROR_IMM_MSR;
}
if (opcode & 0x00010000)
reg[17].I = (reg[17].I & 0xFFFFFF00) | (value & 0x000000FF);
if (opcode & 0x00020000)
reg[17].I = (reg[17].I & 0xFFFF00FF) | (value & 0x0000FF00);
if (opcode & 0x00040000)
reg[17].I = (reg[17].I & 0xFF00FFFF) | (value & 0x00FF0000);
if (opcode & 0x00080000)
reg[17].I = (reg[17].I & 0x00FFFFFF) | (value & 0xFF000000);
}
}
else
armUnknownInsn(opcode);
}
// BX Rm
static INSN_REGPARM void arm121(uint32_t opcode)
{
if (LIKELY((opcode & 0x0FFFFFF0) == 0x012FFF10))
{
int base = opcode & 0x0F;
busPrefetchCount = 0;
armState = !(reg[base].I & 1);
if (armState)
{
reg[15].I = reg[base].I & 0xFFFFFFFC;
armNextPC = reg[15].I;
reg[15].I += 4;
ARM_PREFETCH();
clockTicks = 3 + codeTicksAccessSeq32(armNextPC) + codeTicksAccessSeq32(armNextPC) + codeTicksAccess32(armNextPC);
}
else
{
reg[15].I = reg[base].I & 0xFFFFFFFE;
armNextPC = reg[15].I;
reg[15].I += 2;
THUMB_PREFETCH();
clockTicks = 3 + codeTicksAccessSeq16(armNextPC) + codeTicksAccessSeq16(armNextPC) + codeTicksAccess16(armNextPC);
}
}
else
armUnknownInsn(opcode);
}
// Load/store /////////////////////////////////////////////////////////////
#define OFFSET_IMM \
int offset = opcode & 0xFFF;
#define OFFSET_IMM8 \
int offset = (opcode & 0x0F) | ((opcode >> 4) & 0xF0);
#define OFFSET_REG \
int offset = reg[opcode & 15].I;
#define OFFSET_LSL \
int offset = reg[opcode & 15].I << ((opcode >> 7) & 31);
#define OFFSET_LSR \
int shift = (opcode >> 7) & 31; \
int offset = shift ? reg[opcode & 15].I >> shift : 0;
#define OFFSET_ASR \
int shift = (opcode >> 7) & 31; \
int offset; \
if (shift) \
offset = static_cast<int>(static_cast<int32_t>(reg[opcode & 15].I) >> shift); \
else if (reg[opcode & 15].I & 0x80000000) \
offset = 0xFFFFFFFF; \
else \
offset = 0;
#define OFFSET_ROR \
int shift = (opcode >> 7) & 31; \
uint32_t offset = reg[opcode & 15].I; \
if (shift) \
ROR_OFFSET \
else \
RRX_OFFSET
#define ADDRESS_POST (reg[base].I)
#define ADDRESS_PREDEC (reg[base].I - offset)
#define ADDRESS_PREINC (reg[base].I + offset)
#define OP_STR CPUWriteMemory(address, reg[dest].I)
#define OP_STRH CPUWriteHalfWord(address, reg[dest].W.W0)
#define OP_STRB CPUWriteByte(address, reg[dest].B.B0)
#define OP_LDR reg[dest].I = CPUReadMemory(address)
#define OP_LDRH reg[dest].I = CPUReadHalfWord(address)
#define OP_LDRB reg[dest].I = CPUReadByte(address)
#define OP_LDRSH reg[dest].I = static_cast<uint32_t>(CPUReadHalfWordSigned(address))
#define OP_LDRSB reg[dest].I = static_cast<int8_t>(CPUReadByte(address))
#define WRITEBACK_NONE /*nothing*/
#define WRITEBACK_PRE reg[base].I = address
#define WRITEBACK_POSTDEC reg[base].I = address - offset
#define WRITEBACK_POSTINC reg[base].I = address + offset
#define LDRSTR_INIT(CALC_OFFSET, CALC_ADDRESS) \
if (!busPrefetchCount) \
busPrefetch = busPrefetchEnable; \
int dest = (opcode >> 12) & 15; \
int base = (opcode >> 16) & 15; \
CALC_OFFSET; \
uint32_t address = CALC_ADDRESS;
#define STR(CALC_OFFSET, CALC_ADDRESS, STORE_DATA, WRITEBACK1, WRITEBACK2, SIZE) \
LDRSTR_INIT(CALC_OFFSET, CALC_ADDRESS); \
WRITEBACK1; \
STORE_DATA; \
WRITEBACK2; \
clockTicks = 2 + dataTicksAccess##SIZE(address) + codeTicksAccess32(armNextPC);
#define LDR(CALC_OFFSET, CALC_ADDRESS, LOAD_DATA, WRITEBACK, SIZE) \
LDRSTR_INIT(CALC_OFFSET, CALC_ADDRESS); \
LOAD_DATA; \
if (dest != base) \
{ \
WRITEBACK; \
} \
clockTicks = 0; \
if (dest == 15) \
{ \
reg[15].I &= 0xFFFFFFFC; \
armNextPC = reg[15].I; \
reg[15].I += 4; \
ARM_PREFETCH(); \
clockTicks += 2 + dataTicksAccessSeq32(address) + dataTicksAccessSeq32(address); \
} \
clockTicks += 3 + dataTicksAccess##SIZE(address) + codeTicksAccess32(armNextPC);
#define STR_POSTDEC(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_POST, STORE_DATA, WRITEBACK_NONE, WRITEBACK_POSTDEC, SIZE)
#define STR_POSTINC(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_POST, STORE_DATA, WRITEBACK_NONE, WRITEBACK_POSTINC, SIZE)
#define STR_PREDEC(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_PREDEC, STORE_DATA, WRITEBACK_NONE, WRITEBACK_NONE, SIZE)
#define STR_PREDEC_WB(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_PREDEC, STORE_DATA, WRITEBACK_PRE, WRITEBACK_NONE, SIZE)
#define STR_PREINC(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_PREINC, STORE_DATA, WRITEBACK_NONE, WRITEBACK_NONE, SIZE)
#define STR_PREINC_WB(CALC_OFFSET, STORE_DATA, SIZE) \
STR(CALC_OFFSET, ADDRESS_PREINC, STORE_DATA, WRITEBACK_PRE, WRITEBACK_NONE, SIZE)
#define LDR_POSTDEC(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_POST, LOAD_DATA, WRITEBACK_POSTDEC, SIZE)
#define LDR_POSTINC(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_POST, LOAD_DATA, WRITEBACK_POSTINC, SIZE)
#define LDR_PREDEC(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_PREDEC, LOAD_DATA, WRITEBACK_NONE, SIZE)
#define LDR_PREDEC_WB(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_PREDEC, LOAD_DATA, WRITEBACK_PRE, SIZE)
#define LDR_PREINC(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_PREINC, LOAD_DATA, WRITEBACK_NONE, SIZE)
#define LDR_PREINC_WB(CALC_OFFSET, LOAD_DATA, SIZE) \
LDR(CALC_OFFSET, ADDRESS_PREINC, LOAD_DATA, WRITEBACK_PRE, SIZE)
// STRH Rd, [Rn], -Rm
static INSN_REGPARM void arm00B(uint32_t opcode) { STR_POSTDEC(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn], #-offset
static INSN_REGPARM void arm04B(uint32_t opcode) { STR_POSTDEC(OFFSET_IMM8, OP_STRH, 16); }
// STRH Rd, [Rn], Rm
static INSN_REGPARM void arm08B(uint32_t opcode) { STR_POSTINC(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn], #offset
static INSN_REGPARM void arm0CB(uint32_t opcode) { STR_POSTINC(OFFSET_IMM8, OP_STRH, 16); }
// STRH Rd, [Rn, -Rm]
static INSN_REGPARM void arm10B(uint32_t opcode) { STR_PREDEC(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn, -Rm]!
static INSN_REGPARM void arm12B(uint32_t opcode) { STR_PREDEC_WB(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn, -#offset]
static INSN_REGPARM void arm14B(uint32_t opcode) { STR_PREDEC(OFFSET_IMM8, OP_STRH, 16); }
// STRH Rd, [Rn, -#offset]!
static INSN_REGPARM void arm16B(uint32_t opcode) { STR_PREDEC_WB(OFFSET_IMM8, OP_STRH, 16); }
// STRH Rd, [Rn, Rm]
static INSN_REGPARM void arm18B(uint32_t opcode) { STR_PREINC(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn, Rm]!
static INSN_REGPARM void arm1AB(uint32_t opcode) { STR_PREINC_WB(OFFSET_REG, OP_STRH, 16); }
// STRH Rd, [Rn, #offset]
static INSN_REGPARM void arm1CB(uint32_t opcode) { STR_PREINC(OFFSET_IMM8, OP_STRH, 16); }
// STRH Rd, [Rn, #offset]!
static INSN_REGPARM void arm1EB(uint32_t opcode) { STR_PREINC_WB(OFFSET_IMM8, OP_STRH, 16); }
// LDRH Rd, [Rn], -Rm
static INSN_REGPARM void arm01B(uint32_t opcode) { LDR_POSTDEC(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn], #-offset
static INSN_REGPARM void arm05B(uint32_t opcode) { LDR_POSTDEC(OFFSET_IMM8, OP_LDRH, 16); }
// LDRH Rd, [Rn], Rm
static INSN_REGPARM void arm09B(uint32_t opcode) { LDR_POSTINC(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn], #offset
static INSN_REGPARM void arm0DB(uint32_t opcode) { LDR_POSTINC(OFFSET_IMM8, OP_LDRH, 16); }
// LDRH Rd, [Rn, -Rm]
static INSN_REGPARM void arm11B(uint32_t opcode) { LDR_PREDEC(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn, -Rm]!
static INSN_REGPARM void arm13B(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn, -#offset]
static INSN_REGPARM void arm15B(uint32_t opcode) { LDR_PREDEC(OFFSET_IMM8, OP_LDRH, 16); }
// LDRH Rd, [Rn, -#offset]!
static INSN_REGPARM void arm17B(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_IMM8, OP_LDRH, 16); }
// LDRH Rd, [Rn, Rm]
static INSN_REGPARM void arm19B(uint32_t opcode) { LDR_PREINC(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn, Rm]!
static INSN_REGPARM void arm1BB(uint32_t opcode) { LDR_PREINC_WB(OFFSET_REG, OP_LDRH, 16); }
// LDRH Rd, [Rn, #offset]
static INSN_REGPARM void arm1DB(uint32_t opcode) { LDR_PREINC(OFFSET_IMM8, OP_LDRH, 16); }
// LDRH Rd, [Rn, #offset]!
static INSN_REGPARM void arm1FB(uint32_t opcode) { LDR_PREINC_WB(OFFSET_IMM8, OP_LDRH, 16); }
// LDRSB Rd, [Rn], -Rm
static INSN_REGPARM void arm01D(uint32_t opcode) { LDR_POSTDEC(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn], #-offset
static INSN_REGPARM void arm05D(uint32_t opcode) { LDR_POSTDEC(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSB Rd, [Rn], Rm
static INSN_REGPARM void arm09D(uint32_t opcode) { LDR_POSTINC(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn], #offset
static INSN_REGPARM void arm0DD(uint32_t opcode) { LDR_POSTINC(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, -Rm]
static INSN_REGPARM void arm11D(uint32_t opcode) { LDR_PREDEC(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, -Rm]!
static INSN_REGPARM void arm13D(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, -#offset]
static INSN_REGPARM void arm15D(uint32_t opcode) { LDR_PREDEC(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, -#offset]!
static INSN_REGPARM void arm17D(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, Rm]
static INSN_REGPARM void arm19D(uint32_t opcode) { LDR_PREINC(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, Rm]!
static INSN_REGPARM void arm1BD(uint32_t opcode) { LDR_PREINC_WB(OFFSET_REG, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, #offset]
static INSN_REGPARM void arm1DD(uint32_t opcode) { LDR_PREINC(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSB Rd, [Rn, #offset]!
static INSN_REGPARM void arm1FD(uint32_t opcode) { LDR_PREINC_WB(OFFSET_IMM8, OP_LDRSB, 16); }
// LDRSH Rd, [Rn], -Rm
static INSN_REGPARM void arm01F(uint32_t opcode) { LDR_POSTDEC(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn], #-offset
static INSN_REGPARM void arm05F(uint32_t opcode) { LDR_POSTDEC(OFFSET_IMM8, OP_LDRSH, 16); }
// LDRSH Rd, [Rn], Rm
static INSN_REGPARM void arm09F(uint32_t opcode) { LDR_POSTINC(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn], #offset
static INSN_REGPARM void arm0DF(uint32_t opcode) { LDR_POSTINC(OFFSET_IMM8, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, -Rm]
static INSN_REGPARM void arm11F(uint32_t opcode) { LDR_PREDEC(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, -Rm]!
static INSN_REGPARM void arm13F(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, -#offset]
static INSN_REGPARM void arm15F(uint32_t opcode) { LDR_PREDEC(OFFSET_IMM8, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, -#offset]!
static INSN_REGPARM void arm17F(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_IMM8, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, Rm]
static INSN_REGPARM void arm19F(uint32_t opcode) { LDR_PREINC(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, Rm]!
static INSN_REGPARM void arm1BF(uint32_t opcode) { LDR_PREINC_WB(OFFSET_REG, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, #offset]
static INSN_REGPARM void arm1DF(uint32_t opcode) { LDR_PREINC(OFFSET_IMM8, OP_LDRSH, 16); }
// LDRSH Rd, [Rn, #offset]!
static INSN_REGPARM void arm1FF(uint32_t opcode) { LDR_PREINC_WB(OFFSET_IMM8, OP_LDRSH, 16); }
// STR[T] Rd, [Rn], -#
// Note: STR and STRT do the same thing on the GBA (likewise for LDR/LDRT etc)
static INSN_REGPARM void arm400(uint32_t opcode) { STR_POSTDEC(OFFSET_IMM, OP_STR, 32); }
// LDR[T] Rd, [Rn], -#
static INSN_REGPARM void arm410(uint32_t opcode) { LDR_POSTDEC(OFFSET_IMM, OP_LDR, 32); }
// STRB[T] Rd, [Rn], -#
static INSN_REGPARM void arm440(uint32_t opcode) { STR_POSTDEC(OFFSET_IMM, OP_STRB, 16); }
// LDRB[T] Rd, [Rn], -#
static INSN_REGPARM void arm450(uint32_t opcode) { LDR_POSTDEC(OFFSET_IMM, OP_LDRB, 16); }
// STR[T] Rd, [Rn], #
static INSN_REGPARM void arm480(uint32_t opcode) { STR_POSTINC(OFFSET_IMM, OP_STR, 32); }
// LDR Rd, [Rn], #
static INSN_REGPARM void arm490(uint32_t opcode) { LDR_POSTINC(OFFSET_IMM, OP_LDR, 32); }
// STRB[T] Rd, [Rn], #
static INSN_REGPARM void arm4C0(uint32_t opcode) { STR_POSTINC(OFFSET_IMM, OP_STRB, 16); }
// LDRB[T] Rd, [Rn], #
static INSN_REGPARM void arm4D0(uint32_t opcode) { LDR_POSTINC(OFFSET_IMM, OP_LDRB, 16); }
// STR Rd, [Rn, -#]
static INSN_REGPARM void arm500(uint32_t opcode) { STR_PREDEC(OFFSET_IMM, OP_STR, 32); }
// LDR Rd, [Rn, -#]
static INSN_REGPARM void arm510(uint32_t opcode) { LDR_PREDEC(OFFSET_IMM, OP_LDR, 32); }
// STR Rd, [Rn, -#]!
static INSN_REGPARM void arm520(uint32_t opcode) { STR_PREDEC_WB(OFFSET_IMM, OP_STR, 32); }
// LDR Rd, [Rn, -#]!
static INSN_REGPARM void arm530(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_IMM, OP_LDR, 32); }
// STRB Rd, [Rn, -#]
static INSN_REGPARM void arm540(uint32_t opcode) { STR_PREDEC(OFFSET_IMM, OP_STRB, 16); }
// LDRB Rd, [Rn, -#]
static INSN_REGPARM void arm550(uint32_t opcode) { LDR_PREDEC(OFFSET_IMM, OP_LDRB, 16); }
// STRB Rd, [Rn, -#]!
static INSN_REGPARM void arm560(uint32_t opcode) { STR_PREDEC_WB(OFFSET_IMM, OP_STRB, 16); }
// LDRB Rd, [Rn, -#]!
static INSN_REGPARM void arm570(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_IMM, OP_LDRB, 16); }
// STR Rd, [Rn, #]
static INSN_REGPARM void arm580(uint32_t opcode) { STR_PREINC(OFFSET_IMM, OP_STR, 32); }
// LDR Rd, [Rn, #]
static INSN_REGPARM void arm590(uint32_t opcode) { LDR_PREINC(OFFSET_IMM, OP_LDR, 32); }
// STR Rd, [Rn, #]!
static INSN_REGPARM void arm5A0(uint32_t opcode) { STR_PREINC_WB(OFFSET_IMM, OP_STR, 32); }
// LDR Rd, [Rn, #]!
static INSN_REGPARM void arm5B0(uint32_t opcode) { LDR_PREINC_WB(OFFSET_IMM, OP_LDR, 32); }
// STRB Rd, [Rn, #]
static INSN_REGPARM void arm5C0(uint32_t opcode) { STR_PREINC(OFFSET_IMM, OP_STRB, 16); }
// LDRB Rd, [Rn, #]
static INSN_REGPARM void arm5D0(uint32_t opcode) { LDR_PREINC(OFFSET_IMM, OP_LDRB, 16); }
// STRB Rd, [Rn, #]!
static INSN_REGPARM void arm5E0(uint32_t opcode) { STR_PREINC_WB(OFFSET_IMM, OP_STRB, 16); }
// LDRB Rd, [Rn, #]!
static INSN_REGPARM void arm5F0(uint32_t opcode) { LDR_PREINC_WB(OFFSET_IMM, OP_LDRB, 16); }
// STR[T] Rd, [Rn], -Rm, LSL #
static INSN_REGPARM void arm600(uint32_t opcode) { STR_POSTDEC(OFFSET_LSL, OP_STR, 32); }
// STR[T] Rd, [Rn], -Rm, LSR #
static INSN_REGPARM void arm602(uint32_t opcode) { STR_POSTDEC(OFFSET_LSR, OP_STR, 32); }
// STR[T] Rd, [Rn], -Rm, ASR #
static INSN_REGPARM void arm604(uint32_t opcode) { STR_POSTDEC(OFFSET_ASR, OP_STR, 32); }
// STR[T] Rd, [Rn], -Rm, ROR #
static INSN_REGPARM void arm606(uint32_t opcode) { STR_POSTDEC(OFFSET_ROR, OP_STR, 32); }
// LDR[T] Rd, [Rn], -Rm, LSL #
static INSN_REGPARM void arm610(uint32_t opcode) { LDR_POSTDEC(OFFSET_LSL, OP_LDR, 32); }
// LDR[T] Rd, [Rn], -Rm, LSR #
static INSN_REGPARM void arm612(uint32_t opcode) { LDR_POSTDEC(OFFSET_LSR, OP_LDR, 32); }
// LDR[T] Rd, [Rn], -Rm, ASR #
static INSN_REGPARM void arm614(uint32_t opcode) { LDR_POSTDEC(OFFSET_ASR, OP_LDR, 32); }
// LDR[T] Rd, [Rn], -Rm, ROR #
static INSN_REGPARM void arm616(uint32_t opcode) { LDR_POSTDEC(OFFSET_ROR, OP_LDR, 32); }
// STRB[T] Rd, [Rn], -Rm, LSL #
static INSN_REGPARM void arm640(uint32_t opcode) { STR_POSTDEC(OFFSET_LSL, OP_STRB, 16); }
// STRB[T] Rd, [Rn], -Rm, LSR #
static INSN_REGPARM void arm642(uint32_t opcode) { STR_POSTDEC(OFFSET_LSR, OP_STRB, 16); }
// STRB[T] Rd, [Rn], -Rm, ASR #
static INSN_REGPARM void arm644(uint32_t opcode) { STR_POSTDEC(OFFSET_ASR, OP_STRB, 16); }
// STRB[T] Rd, [Rn], -Rm, ROR #
static INSN_REGPARM void arm646(uint32_t opcode) { STR_POSTDEC(OFFSET_ROR, OP_STRB, 16); }
// LDRB[T] Rd, [Rn], -Rm, LSL #
static INSN_REGPARM void arm650(uint32_t opcode) { LDR_POSTDEC(OFFSET_LSL, OP_LDRB, 16); }
// LDRB[T] Rd, [Rn], -Rm, LSR #
static INSN_REGPARM void arm652(uint32_t opcode) { LDR_POSTDEC(OFFSET_LSR, OP_LDRB, 16); }
// LDRB[T] Rd, [Rn], -Rm, ASR #
static INSN_REGPARM void arm654(uint32_t opcode) { LDR_POSTDEC(OFFSET_ASR, OP_LDRB, 16); }
// LDRB Rd, [Rn], -Rm, ROR #
static INSN_REGPARM void arm656(uint32_t opcode) { LDR_POSTDEC(OFFSET_ROR, OP_LDRB, 16); }
// STR[T] Rd, [Rn], Rm, LSL #
static INSN_REGPARM void arm680(uint32_t opcode) { STR_POSTINC(OFFSET_LSL, OP_STR, 32); }
// STR[T] Rd, [Rn], Rm, LSR #
static INSN_REGPARM void arm682(uint32_t opcode) { STR_POSTINC(OFFSET_LSR, OP_STR, 32); }
// STR[T] Rd, [Rn], Rm, ASR #
static INSN_REGPARM void arm684(uint32_t opcode) { STR_POSTINC(OFFSET_ASR, OP_STR, 32); }
// STR[T] Rd, [Rn], Rm, ROR #
static INSN_REGPARM void arm686(uint32_t opcode) { STR_POSTINC(OFFSET_ROR, OP_STR, 32); }
// LDR[T] Rd, [Rn], Rm, LSL #
static INSN_REGPARM void arm690(uint32_t opcode) { LDR_POSTINC(OFFSET_LSL, OP_LDR, 32); }
// LDR[T] Rd, [Rn], Rm, LSR #
static INSN_REGPARM void arm692(uint32_t opcode) { LDR_POSTINC(OFFSET_LSR, OP_LDR, 32); }
// LDR[T] Rd, [Rn], Rm, ASR #
static INSN_REGPARM void arm694(uint32_t opcode) { LDR_POSTINC(OFFSET_ASR, OP_LDR, 32); }
// LDR[T] Rd, [Rn], Rm, ROR #
static INSN_REGPARM void arm696(uint32_t opcode) { LDR_POSTINC(OFFSET_ROR, OP_LDR, 32); }
// STRB[T] Rd, [Rn], Rm, LSL #
static INSN_REGPARM void arm6C0(uint32_t opcode) { STR_POSTINC(OFFSET_LSL, OP_STRB, 16); }
// STRB[T] Rd, [Rn], Rm, LSR #
static INSN_REGPARM void arm6C2(uint32_t opcode) { STR_POSTINC(OFFSET_LSR, OP_STRB, 16); }
// STRB[T] Rd, [Rn], Rm, ASR #
static INSN_REGPARM void arm6C4(uint32_t opcode) { STR_POSTINC(OFFSET_ASR, OP_STRB, 16); }
// STRB[T] Rd, [Rn], Rm, ROR #
static INSN_REGPARM void arm6C6(uint32_t opcode) { STR_POSTINC(OFFSET_ROR, OP_STRB, 16); }
// LDRB[T] Rd, [Rn], Rm, LSL #
static INSN_REGPARM void arm6D0(uint32_t opcode) { LDR_POSTINC(OFFSET_LSL, OP_LDRB, 16); }
// LDRB[T] Rd, [Rn], Rm, LSR #
static INSN_REGPARM void arm6D2(uint32_t opcode) { LDR_POSTINC(OFFSET_LSR, OP_LDRB, 16); }
// LDRB[T] Rd, [Rn], Rm, ASR #
static INSN_REGPARM void arm6D4(uint32_t opcode) { LDR_POSTINC(OFFSET_ASR, OP_LDRB, 16); }
// LDRB[T] Rd, [Rn], Rm, ROR #
static INSN_REGPARM void arm6D6(uint32_t opcode) { LDR_POSTINC(OFFSET_ROR, OP_LDRB, 16); }
// STR Rd, [Rn, -Rm, LSL #]
static INSN_REGPARM void arm700(uint32_t opcode) { STR_PREDEC(OFFSET_LSL, OP_STR, 32); }
// STR Rd, [Rn, -Rm, LSR #]
static INSN_REGPARM void arm702(uint32_t opcode) { STR_PREDEC(OFFSET_LSR, OP_STR, 32); }
// STR Rd, [Rn, -Rm, ASR #]
static INSN_REGPARM void arm704(uint32_t opcode) { STR_PREDEC(OFFSET_ASR, OP_STR, 32); }
// STR Rd, [Rn, -Rm, ROR #]
static INSN_REGPARM void arm706(uint32_t opcode) { STR_PREDEC(OFFSET_ROR, OP_STR, 32); }
// LDR Rd, [Rn, -Rm, LSL #]
static INSN_REGPARM void arm710(uint32_t opcode) { LDR_PREDEC(OFFSET_LSL, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, LSR #]
static INSN_REGPARM void arm712(uint32_t opcode) { LDR_PREDEC(OFFSET_LSR, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, ASR #]
static INSN_REGPARM void arm714(uint32_t opcode) { LDR_PREDEC(OFFSET_ASR, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, ROR #]
static INSN_REGPARM void arm716(uint32_t opcode) { LDR_PREDEC(OFFSET_ROR, OP_LDR, 32); }
// STR Rd, [Rn, -Rm, LSL #]!
static INSN_REGPARM void arm720(uint32_t opcode) { STR_PREDEC_WB(OFFSET_LSL, OP_STR, 32); }
// STR Rd, [Rn, -Rm, LSR #]!
static INSN_REGPARM void arm722(uint32_t opcode) { STR_PREDEC_WB(OFFSET_LSR, OP_STR, 32); }
// STR Rd, [Rn, -Rm, ASR #]!
static INSN_REGPARM void arm724(uint32_t opcode) { STR_PREDEC_WB(OFFSET_ASR, OP_STR, 32); }
// STR Rd, [Rn, -Rm, ROR #]!
static INSN_REGPARM void arm726(uint32_t opcode) { STR_PREDEC_WB(OFFSET_ROR, OP_STR, 32); }
// LDR Rd, [Rn, -Rm, LSL #]!
static INSN_REGPARM void arm730(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_LSL, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, LSR #]!
static INSN_REGPARM void arm732(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_LSR, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, ASR #]!
static INSN_REGPARM void arm734(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_ASR, OP_LDR, 32); }
// LDR Rd, [Rn, -Rm, ROR #]!
static INSN_REGPARM void arm736(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_ROR, OP_LDR, 32); }
// STRB Rd, [Rn, -Rm, LSL #]
static INSN_REGPARM void arm740(uint32_t opcode) { STR_PREDEC(OFFSET_LSL, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, LSR #]
static INSN_REGPARM void arm742(uint32_t opcode) { STR_PREDEC(OFFSET_LSR, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, ASR #]
static INSN_REGPARM void arm744(uint32_t opcode) { STR_PREDEC(OFFSET_ASR, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, ROR #]
static INSN_REGPARM void arm746(uint32_t opcode) { STR_PREDEC(OFFSET_ROR, OP_STRB, 16); }
// LDRB Rd, [Rn, -Rm, LSL #]
static INSN_REGPARM void arm750(uint32_t opcode) { LDR_PREDEC(OFFSET_LSL, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, LSR #]
static INSN_REGPARM void arm752(uint32_t opcode) { LDR_PREDEC(OFFSET_LSR, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, ASR #]
static INSN_REGPARM void arm754(uint32_t opcode) { LDR_PREDEC(OFFSET_ASR, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, ROR #]
static INSN_REGPARM void arm756(uint32_t opcode) { LDR_PREDEC(OFFSET_ROR, OP_LDRB, 16); }
// STRB Rd, [Rn, -Rm, LSL #]!
static INSN_REGPARM void arm760(uint32_t opcode) { STR_PREDEC_WB(OFFSET_LSL, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, LSR #]!
static INSN_REGPARM void arm762(uint32_t opcode) { STR_PREDEC_WB(OFFSET_LSR, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, ASR #]!
static INSN_REGPARM void arm764(uint32_t opcode) { STR_PREDEC_WB(OFFSET_ASR, OP_STRB, 16); }
// STRB Rd, [Rn, -Rm, ROR #]!
static INSN_REGPARM void arm766(uint32_t opcode) { STR_PREDEC_WB(OFFSET_ROR, OP_STRB, 16); }
// LDRB Rd, [Rn, -Rm, LSL #]!
static INSN_REGPARM void arm770(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_LSL, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, LSR #]!
static INSN_REGPARM void arm772(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_LSR, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, ASR #]!
static INSN_REGPARM void arm774(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_ASR, OP_LDRB, 16); }
// LDRB Rd, [Rn, -Rm, ROR #]!
static INSN_REGPARM void arm776(uint32_t opcode) { LDR_PREDEC_WB(OFFSET_ROR, OP_LDRB, 16); }
// STR Rd, [Rn, Rm, LSL #]
static INSN_REGPARM void arm780(uint32_t opcode) { STR_PREINC(OFFSET_LSL, OP_STR, 32); }
// STR Rd, [Rn, Rm, LSR #]
static INSN_REGPARM void arm782(uint32_t opcode) { STR_PREINC(OFFSET_LSR, OP_STR, 32); }
// STR Rd, [Rn, Rm, ASR #]
static INSN_REGPARM void arm784(uint32_t opcode) { STR_PREINC(OFFSET_ASR, OP_STR, 32); }
// STR Rd, [Rn, Rm, ROR #]
static INSN_REGPARM void arm786(uint32_t opcode) { STR_PREINC(OFFSET_ROR, OP_STR, 32); }
// LDR Rd, [Rn, Rm, LSL #]
static INSN_REGPARM void arm790(uint32_t opcode) { LDR_PREINC(OFFSET_LSL, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, LSR #]
static INSN_REGPARM void arm792(uint32_t opcode) { LDR_PREINC(OFFSET_LSR, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, ASR #]
static INSN_REGPARM void arm794(uint32_t opcode) { LDR_PREINC(OFFSET_ASR, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, ROR #]
static INSN_REGPARM void arm796(uint32_t opcode) { LDR_PREINC(OFFSET_ROR, OP_LDR, 32); }
// STR Rd, [Rn, Rm, LSL #]!
static INSN_REGPARM void arm7A0(uint32_t opcode) { STR_PREINC_WB(OFFSET_LSL, OP_STR, 32); }
// STR Rd, [Rn, Rm, LSR #]!
static INSN_REGPARM void arm7A2(uint32_t opcode) { STR_PREINC_WB(OFFSET_LSR, OP_STR, 32); }
// STR Rd, [Rn, Rm, ASR #]!
static INSN_REGPARM void arm7A4(uint32_t opcode) { STR_PREINC_WB(OFFSET_ASR, OP_STR, 32); }
// STR Rd, [Rn, Rm, ROR #]!
static INSN_REGPARM void arm7A6(uint32_t opcode) { STR_PREINC_WB(OFFSET_ROR, OP_STR, 32); }
// LDR Rd, [Rn, Rm, LSL #]!
static INSN_REGPARM void arm7B0(uint32_t opcode) { LDR_PREINC_WB(OFFSET_LSL, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, LSR #]!
static INSN_REGPARM void arm7B2(uint32_t opcode) { LDR_PREINC_WB(OFFSET_LSR, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, ASR #]!
static INSN_REGPARM void arm7B4(uint32_t opcode) { LDR_PREINC_WB(OFFSET_ASR, OP_LDR, 32); }
// LDR Rd, [Rn, Rm, ROR #]!
static INSN_REGPARM void arm7B6(uint32_t opcode) { LDR_PREINC_WB(OFFSET_ROR, OP_LDR, 32); }
// STRB Rd, [Rn, Rm, LSL #]
static INSN_REGPARM void arm7C0(uint32_t opcode) { STR_PREINC(OFFSET_LSL, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, LSR #]
static INSN_REGPARM void arm7C2(uint32_t opcode) { STR_PREINC(OFFSET_LSR, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, ASR #]
static INSN_REGPARM void arm7C4(uint32_t opcode) { STR_PREINC(OFFSET_ASR, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, ROR #]
static INSN_REGPARM void arm7C6(uint32_t opcode) { STR_PREINC(OFFSET_ROR, OP_STRB, 16); }
// LDRB Rd, [Rn, Rm, LSL #]
static INSN_REGPARM void arm7D0(uint32_t opcode) { LDR_PREINC(OFFSET_LSL, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, LSR #]
static INSN_REGPARM void arm7D2(uint32_t opcode) { LDR_PREINC(OFFSET_LSR, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, ASR #]
static INSN_REGPARM void arm7D4(uint32_t opcode) { LDR_PREINC(OFFSET_ASR, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, ROR #]
static INSN_REGPARM void arm7D6(uint32_t opcode) { LDR_PREINC(OFFSET_ROR, OP_LDRB, 16); }
// STRB Rd, [Rn, Rm, LSL #]!
static INSN_REGPARM void arm7E0(uint32_t opcode) { STR_PREINC_WB(OFFSET_LSL, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, LSR #]!
static INSN_REGPARM void arm7E2(uint32_t opcode) { STR_PREINC_WB(OFFSET_LSR, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, ASR #]!
static INSN_REGPARM void arm7E4(uint32_t opcode) { STR_PREINC_WB(OFFSET_ASR, OP_STRB, 16); }
// STRB Rd, [Rn, Rm, ROR #]!
static INSN_REGPARM void arm7E6(uint32_t opcode) { STR_PREINC_WB(OFFSET_ROR, OP_STRB, 16); }
// LDRB Rd, [Rn, Rm, LSL #]!
static INSN_REGPARM void arm7F0(uint32_t opcode) { LDR_PREINC_WB(OFFSET_LSL, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, LSR #]!
static INSN_REGPARM void arm7F2(uint32_t opcode) { LDR_PREINC_WB(OFFSET_LSR, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, ASR #]!
static INSN_REGPARM void arm7F4(uint32_t opcode) { LDR_PREINC_WB(OFFSET_ASR, OP_LDRB, 16); }
// LDRB Rd, [Rn, Rm, ROR #]!
static INSN_REGPARM void arm7F6(uint32_t opcode) { LDR_PREINC_WB(OFFSET_ROR, OP_LDRB, 16); }
// STM/LDM ////////////////////////////////////////////////////////////////
#define STM_REG(bit, num) \
if (opcode & (1U << (bit))) \
{ \
CPUWriteMemory(address, reg[(num)].I); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
++count; \
address += 4; \
}
#define STMW_REG(bit, num) \
if (opcode & (1U << (bit))) \
{ \
CPUWriteMemory(address, reg[(num)].I); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
reg[base].I = temp; \
++count; \
address += 4; \
}
#define LDM_REG(bit, num) \
if (opcode & (1U << (bit))) \
{ \
reg[(num)].I = CPUReadMemory(address); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
++count; \
address += 4; \
}
#define STM_LOW(STORE_REG) \
STORE_REG(0, 0); \
STORE_REG(1, 1); \
STORE_REG(2, 2); \
STORE_REG(3, 3); \
STORE_REG(4, 4); \
STORE_REG(5, 5); \
STORE_REG(6, 6); \
STORE_REG(7, 7);
#define STM_HIGH(STORE_REG) \
STORE_REG(8, 8); \
STORE_REG(9, 9); \
STORE_REG(10, 10); \
STORE_REG(11, 11); \
STORE_REG(12, 12); \
STORE_REG(13, 13); \
STORE_REG(14, 14);
#define STM_HIGH_2(STORE_REG) \
if (armMode == 0x11) \
{ \
STORE_REG(8, R8_FIQ); \
STORE_REG(9, R9_FIQ); \
STORE_REG(10, R10_FIQ); \
STORE_REG(11, R11_FIQ); \
STORE_REG(12, R12_FIQ); \
} \
else \
{ \
STORE_REG(8, 8); \
STORE_REG(9, 9); \
STORE_REG(10, 10); \
STORE_REG(11, 11); \
STORE_REG(12, 12); \
} \
if (armMode != 0x10 && armMode != 0x1F) \
{ \
STORE_REG(13, R13_USR); \
STORE_REG(14, R14_USR); \
} \
else \
{ \
STORE_REG(13, 13); \
STORE_REG(14, 14); \
}
#define STM_PC \
if (opcode & (1U << 15)) \
{ \
CPUWriteMemory(address, reg[15].I + 4); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
++count; \
}
#define STMW_PC \
if (opcode & (1U << 15)) \
{ \
CPUWriteMemory(address, reg[15].I + 4); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
reg[base].I = temp; \
++count; \
}
#define LDM_LOW \
LDM_REG(0, 0); \
LDM_REG(1, 1); \
LDM_REG(2, 2); \
LDM_REG(3, 3); \
LDM_REG(4, 4); \
LDM_REG(5, 5); \
LDM_REG(6, 6); \
LDM_REG(7, 7);
#define LDM_HIGH \
LDM_REG(8, 8); \
LDM_REG(9, 9); \
LDM_REG(10, 10); \
LDM_REG(11, 11); \
LDM_REG(12, 12); \
LDM_REG(13, 13); \
LDM_REG(14, 14);
#define LDM_HIGH_2 \
if (armMode == 0x11) \
{ \
LDM_REG(8, R8_FIQ); \
LDM_REG(9, R9_FIQ); \
LDM_REG(10, R10_FIQ); \
LDM_REG(11, R11_FIQ); \
LDM_REG(12, R12_FIQ); \
} \
else \
{ \
LDM_REG(8, 8); \
LDM_REG(9, 9); \
LDM_REG(10, 10); \
LDM_REG(11, 11); \
LDM_REG(12, 12); \
} \
if (armMode != 0x10 && armMode != 0x1F) \
{ \
LDM_REG(13, R13_USR); \
LDM_REG(14, R14_USR); \
} \
else \
{ \
LDM_REG(13, 13); \
LDM_REG(14, 14); \
}
#define STM_ALL \
STM_LOW(STM_REG); \
STM_HIGH(STM_REG); \
STM_PC;
#define STMW_ALL \
STM_LOW(STMW_REG); \
STM_HIGH(STMW_REG); \
STMW_PC;
#define LDM_ALL \
LDM_LOW; \
LDM_HIGH; \
if (opcode & (1U << 15)) \
{ \
reg[15].I = CPUReadMemory(address); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
++count; \
} \
if (opcode & (1U << 15)) \
{ \
armNextPC = reg[15].I; \
reg[15].I += 4; \
ARM_PREFETCH(); \
clockTicks += 1 + codeTicksAccessSeq32(armNextPC); \
}
#define STM_ALL_2 \
STM_LOW(STM_REG); \
STM_HIGH_2(STM_REG); \
STM_PC;
#define STMW_ALL_2 \
STM_LOW(STMW_REG); \
STM_HIGH_2(STMW_REG); \
STMW_PC;
#define LDM_ALL_2 \
LDM_LOW; \
if (opcode & (1U << 15)) \
{ \
LDM_HIGH; \
reg[15].I = CPUReadMemory(address); \
if (!count) \
clockTicks += 1 + dataTicksAccess32(address); \
else \
clockTicks += 1 + dataTicksAccessSeq32(address); \
++count; \
} \
else \
{ \
LDM_HIGH_2; \
}
#define LDM_ALL_2B \
if (opcode & (1U << 15)) \
{ \
CPUSwitchMode(reg[17].I & 0x1F, false); \
if (armState) \
{ \
armNextPC = reg[15].I & 0xFFFFFFFC; \
reg[15].I = armNextPC + 4; \
ARM_PREFETCH(); \
} \
else \
{ \
armNextPC = reg[15].I & 0xFFFFFFFE; \
reg[15].I = armNextPC + 2; \
THUMB_PREFETCH(); \
} \
clockTicks += 1 + codeTicksAccessSeq32(armNextPC); \
}
// STMDA Rn, {Rlist}
static INSN_REGPARM void arm800(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
STM_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDA Rn, {Rlist}
static INSN_REGPARM void arm810(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMDA Rn!, {Rlist}
static INSN_REGPARM void arm820(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
STMW_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDA Rn!, {Rlist}
static INSN_REGPARM void arm830(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
if (!(opcode & (1U << base)))
reg[base].I = temp;
}
// STMDA Rn, {Rlist}^
static INSN_REGPARM void arm840(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
STM_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDA Rn, {Rlist}^
static INSN_REGPARM void arm850(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMDA Rn!, {Rlist}^
static INSN_REGPARM void arm860(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
STMW_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDA Rn!, {Rlist}^
static INSN_REGPARM void arm870(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (temp + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
if (!(opcode & (1U << base)))
reg[base].I = temp;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIA Rn, {Rlist}
static INSN_REGPARM void arm880(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
STM_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIA Rn, {Rlist}
static INSN_REGPARM void arm890(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIA Rn!, {Rlist}
static INSN_REGPARM void arm8A0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 0xFF] + cpuBitsSet[(opcode >> 8) & 255]);
STMW_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIA Rn!, {Rlist}
static INSN_REGPARM void arm8B0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
if (!(opcode & (1U << base)))
reg[base].I = temp;
}
// STMIA Rn, {Rlist}^
static INSN_REGPARM void arm8C0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
STM_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIA Rn, {Rlist}^
static INSN_REGPARM void arm8D0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIA Rn!, {Rlist}^
static INSN_REGPARM void arm8E0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 0xFF] + cpuBitsSet[(opcode >> 8) & 255]);
STMW_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIA Rn!, {Rlist}^
static INSN_REGPARM void arm8F0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = reg[base].I & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
if (!(opcode & (1U << base)))
reg[base].I = temp;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMDB Rn, {Rlist}
static INSN_REGPARM void arm900(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
STM_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDB Rn, {Rlist}
static INSN_REGPARM void arm910(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMDB Rn!, {Rlist}
static INSN_REGPARM void arm920(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
STMW_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDB Rn!, {Rlist}
static INSN_REGPARM void arm930(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
if (!(opcode & (1U << base)))
reg[base].I = temp;
}
// STMDB Rn, {Rlist}^
static INSN_REGPARM void arm940(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
STM_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDB Rn, {Rlist}^
static INSN_REGPARM void arm950(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMDB Rn!, {Rlist}^
static INSN_REGPARM void arm960(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
STMW_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMDB Rn!, {Rlist}^
static INSN_REGPARM void arm970(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I - 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = temp & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
if (!(opcode & (1U << base)))
reg[base].I = temp;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIB Rn, {Rlist}
static INSN_REGPARM void arm980(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
STM_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIB Rn, {Rlist}
static INSN_REGPARM void arm990(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIB Rn!, {Rlist}
static INSN_REGPARM void arm9A0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 0xFF] + cpuBitsSet[(opcode >> 8) & 255]);
STMW_ALL;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIB Rn!, {Rlist}
static INSN_REGPARM void arm9B0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL;
clockTicks += 2 + codeTicksAccess32(armNextPC);
if (!(opcode & (1U << base)))
reg[base].I = temp;
}
// STMIB Rn, {Rlist}^
static INSN_REGPARM void arm9C0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
STM_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIB Rn, {Rlist}^
static INSN_REGPARM void arm9D0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// STMIB Rn!, {Rlist}^
static INSN_REGPARM void arm9E0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 0xFF] + cpuBitsSet[(opcode >> 8) & 255]);
STMW_ALL_2;
clockTicks += 1 + codeTicksAccess32(armNextPC);
}
// LDMIB Rn!, {Rlist}^
static INSN_REGPARM void arm9F0(uint32_t opcode)
{
if (!busPrefetchCount)
busPrefetch = busPrefetchEnable;
int base = (opcode & 0x000F0000) >> 16;
uint32_t temp = reg[base].I + 4 * (cpuBitsSet[opcode & 255] + cpuBitsSet[(opcode >> 8) & 255]);
uint32_t address = (reg[base].I + 4) & 0xFFFFFFFC;
int count = 0;
LDM_ALL_2;
if (!(opcode & (1U << base)))
reg[base].I = temp;
LDM_ALL_2B;
clockTicks += 2 + codeTicksAccess32(armNextPC);
}
// B/BL/SWI and (unimplemented) coproc support ////////////////////////////
// B <offset>
static INSN_REGPARM void armA00(uint32_t opcode)
{
int offset = opcode & 0x00FFFFFF;
if (offset & 0x00800000)
offset |= 0xFF000000; // negative offset
reg[15].I += offset << 2;
armNextPC = reg[15].I;
reg[15].I += 4;
ARM_PREFETCH();
clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
busPrefetchCount = 0;
}
// BL <offset>
static INSN_REGPARM void armB00(uint32_t opcode)
{
int offset = opcode & 0x00FFFFFF;
if (offset & 0x00800000)
offset |= 0xFF000000; // negative offset
reg[14].I = reg[15].I - 4;
reg[15].I += offset << 2;
armNextPC = reg[15].I;
reg[15].I += 4;
ARM_PREFETCH();
clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
busPrefetchCount = 0;
}
#define armE01 armUnknownInsn
// SWI <comment>
static INSN_REGPARM void armF00(uint32_t opcode)
{
clockTicks = codeTicksAccessSeq32(armNextPC) + 1;
clockTicks = (clockTicks * 2) + codeTicksAccess32(armNextPC) + 1;
busPrefetchCount = 0;
CPUSoftwareInterrupt(opcode & 0x00FFFFFF);
}
// Instruction table //////////////////////////////////////////////////////
typedef INSN_REGPARM void (*insnfunc_t)(uint32_t opcode);
#define REP16(insn) \
insn, insn, insn, insn, insn, insn, insn, insn, \
insn, insn, insn, insn, insn, insn, insn, insn
#define REP256(insn) \
REP16(insn), REP16(insn), REP16(insn), REP16(insn), \
REP16(insn), REP16(insn), REP16(insn), REP16(insn), \
REP16(insn), REP16(insn), REP16(insn), REP16(insn), \
REP16(insn), REP16(insn), REP16(insn), REP16(insn)
#define arm_UI armUnknownInsn
#define arm_BP armUnknownInsn
static insnfunc_t armInsnTable[] =
{
arm000,arm001,arm002,arm003,arm004,arm005,arm006,arm007, // 000
arm000,arm009,arm002,arm00B,arm004,arm_UI,arm006,arm_UI, // 008
arm010,arm011,arm012,arm013,arm014,arm015,arm016,arm017, // 010
arm010,arm019,arm012,arm01B,arm014,arm01D,arm016,arm01F, // 018
arm020,arm021,arm022,arm023,arm024,arm025,arm026,arm027, // 020
arm020,arm029,arm022,arm_UI,arm024,arm_UI,arm026,arm_UI, // 028
arm030,arm031,arm032,arm033,arm034,arm035,arm036,arm037, // 030
arm030,arm039,arm032,arm_UI,arm034,arm01D,arm036,arm01F, // 038
arm040,arm041,arm042,arm043,arm044,arm045,arm046,arm047, // 040
arm040,arm_UI,arm042,arm04B,arm044,arm_UI,arm046,arm_UI, // 048
arm050,arm051,arm052,arm053,arm054,arm055,arm056,arm057, // 050
arm050,arm_UI,arm052,arm05B,arm054,arm05D,arm056,arm05F, // 058
arm060,arm061,arm062,arm063,arm064,arm065,arm066,arm067, // 060
arm060,arm_UI,arm062,arm_UI,arm064,arm_UI,arm066,arm_UI, // 068
arm070,arm071,arm072,arm073,arm074,arm075,arm076,arm077, // 070
arm070,arm_UI,arm072,arm_UI,arm074,arm05D,arm076,arm05F, // 078
arm080,arm081,arm082,arm083,arm084,arm085,arm086,arm087, // 080
arm080,arm089,arm082,arm08B,arm084,arm_UI,arm086,arm_UI, // 088
arm090,arm091,arm092,arm093,arm094,arm095,arm096,arm097, // 090
arm090,arm099,arm092,arm09B,arm094,arm09D,arm096,arm09F, // 098
arm0A0,arm0A1,arm0A2,arm0A3,arm0A4,arm0A5,arm0A6,arm0A7, // 0A0
arm0A0,arm0A9,arm0A2,arm_UI,arm0A4,arm_UI,arm0A6,arm_UI, // 0A8
arm0B0,arm0B1,arm0B2,arm0B3,arm0B4,arm0B5,arm0B6,arm0B7, // 0B0
arm0B0,arm0B9,arm0B2,arm_UI,arm0B4,arm09D,arm0B6,arm09F, // 0B8
arm0C0,arm0C1,arm0C2,arm0C3,arm0C4,arm0C5,arm0C6,arm0C7, // 0C0
arm0C0,arm0C9,arm0C2,arm0CB,arm0C4,arm_UI,arm0C6,arm_UI, // 0C8
arm0D0,arm0D1,arm0D2,arm0D3,arm0D4,arm0D5,arm0D6,arm0D7, // 0D0
arm0D0,arm0D9,arm0D2,arm0DB,arm0D4,arm0DD,arm0D6,arm0DF, // 0D8
arm0E0,arm0E1,arm0E2,arm0E3,arm0E4,arm0E5,arm0E6,arm0E7, // 0E0
arm0E0,arm0E9,arm0E2,arm0CB,arm0E4,arm_UI,arm0E6,arm_UI, // 0E8
arm0F0,arm0F1,arm0F2,arm0F3,arm0F4,arm0F5,arm0F6,arm0F7, // 0F0
arm0F0,arm0F9,arm0F2,arm0DB,arm0F4,arm0DD,arm0F6,arm0DF, // 0F8
arm100,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI, // 100
arm_UI,arm109,arm_UI,arm10B,arm_UI,arm_UI,arm_UI,arm_UI, // 108
arm110,arm111,arm112,arm113,arm114,arm115,arm116,arm117, // 110
arm110,arm_UI,arm112,arm11B,arm114,arm11D,arm116,arm11F, // 118
arm120,arm121,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_BP, // 120
arm_UI,arm_UI,arm_UI,arm12B,arm_UI,arm_UI,arm_UI,arm_UI, // 128
arm130,arm131,arm132,arm133,arm134,arm135,arm136,arm137, // 130
arm130,arm_UI,arm132,arm13B,arm134,arm13D,arm136,arm13F, // 138
arm140,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI, // 140
arm_UI,arm149,arm_UI,arm14B,arm_UI,arm_UI,arm_UI,arm_UI, // 148
arm150,arm151,arm152,arm153,arm154,arm155,arm156,arm157, // 150
arm150,arm_UI,arm152,arm15B,arm154,arm15D,arm156,arm15F, // 158
arm160,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI,arm_UI, // 160
arm_UI,arm_UI,arm_UI,arm16B,arm_UI,arm_UI,arm_UI,arm_UI, // 168
arm170,arm171,arm172,arm173,arm174,arm175,arm176,arm177, // 170
arm170,arm_UI,arm172,arm17B,arm174,arm17D,arm176,arm17F, // 178
arm180,arm181,arm182,arm183,arm184,arm185,arm186,arm187, // 180
arm180,arm_UI,arm182,arm18B,arm184,arm_UI,arm186,arm_UI, // 188
arm190,arm191,arm192,arm193,arm194,arm195,arm196,arm197, // 190
arm190,arm_UI,arm192,arm19B,arm194,arm19D,arm196,arm19F, // 198
arm1A0,arm1A1,arm1A2,arm1A3,arm1A4,arm1A5,arm1A6,arm1A7, // 1A0
arm1A0,arm_UI,arm1A2,arm1AB,arm1A4,arm_UI,arm1A6,arm_UI, // 1A8
arm1B0,arm1B1,arm1B2,arm1B3,arm1B4,arm1B5,arm1B6,arm1B7, // 1B0
arm1B0,arm_UI,arm1B2,arm1BB,arm1B4,arm1BD,arm1B6,arm1BF, // 1B8
arm1C0,arm1C1,arm1C2,arm1C3,arm1C4,arm1C5,arm1C6,arm1C7, // 1C0
arm1C0,arm_UI,arm1C2,arm1CB,arm1C4,arm_UI,arm1C6,arm_UI, // 1C8
arm1D0,arm1D1,arm1D2,arm1D3,arm1D4,arm1D5,arm1D6,arm1D7, // 1D0
arm1D0,arm_UI,arm1D2,arm1DB,arm1D4,arm1DD,arm1D6,arm1DF, // 1D8
arm1E0,arm1E1,arm1E2,arm1E3,arm1E4,arm1E5,arm1E6,arm1E7, // 1E0
arm1E0,arm_UI,arm1E2,arm1EB,arm1E4,arm_UI,arm1E6,arm_UI, // 1E8
arm1F0,arm1F1,arm1F2,arm1F3,arm1F4,arm1F5,arm1F6,arm1F7, // 1F0
arm1F0,arm_UI,arm1F2,arm1FB,arm1F4,arm1FD,arm1F6,arm1FF, // 1F8
REP16(arm200),REP16(arm210),REP16(arm220),REP16(arm230), // 200
REP16(arm240),REP16(arm250),REP16(arm260),REP16(arm270), // 240
REP16(arm280),REP16(arm290),REP16(arm2A0),REP16(arm2B0), // 280
REP16(arm2C0),REP16(arm2D0),REP16(arm2E0),REP16(arm2F0), // 2C0
REP16(arm_UI),REP16(arm310),REP16(arm320),REP16(arm330), // 300
REP16(arm_UI),REP16(arm350),REP16(arm360),REP16(arm370), // 340
REP16(arm380),REP16(arm390),REP16(arm3A0),REP16(arm3B0), // 380
REP16(arm3C0),REP16(arm3D0),REP16(arm3E0),REP16(arm3F0), // 3C0
REP16(arm400),REP16(arm410),REP16(arm400),REP16(arm410), // 400
REP16(arm440),REP16(arm450),REP16(arm440),REP16(arm450), // 440
REP16(arm480),REP16(arm490),REP16(arm480),REP16(arm490), // 480
REP16(arm4C0),REP16(arm4D0),REP16(arm4C0),REP16(arm4D0), // 4C0
REP16(arm500),REP16(arm510),REP16(arm520),REP16(arm530), // 500
REP16(arm540),REP16(arm550),REP16(arm560),REP16(arm570), // 540
REP16(arm580),REP16(arm590),REP16(arm5A0),REP16(arm5B0), // 580
REP16(arm5C0),REP16(arm5D0),REP16(arm5E0),REP16(arm5F0), // 5C0
arm600,arm_UI,arm602,arm_UI,arm604,arm_UI,arm606,arm_UI, // 600
arm600,arm_UI,arm602,arm_UI,arm604,arm_UI,arm606,arm_UI, // 608
arm610,arm_UI,arm612,arm_UI,arm614,arm_UI,arm616,arm_UI, // 610
arm610,arm_UI,arm612,arm_UI,arm614,arm_UI,arm616,arm_UI, // 618
arm600,arm_UI,arm602,arm_UI,arm604,arm_UI,arm606,arm_UI, // 620
arm600,arm_UI,arm602,arm_UI,arm604,arm_UI,arm606,arm_UI, // 628
arm610,arm_UI,arm612,arm_UI,arm614,arm_UI,arm616,arm_UI, // 630
arm610,arm_UI,arm612,arm_UI,arm614,arm_UI,arm616,arm_UI, // 638
arm640,arm_UI,arm642,arm_UI,arm644,arm_UI,arm646,arm_UI, // 640
arm640,arm_UI,arm642,arm_UI,arm644,arm_UI,arm646,arm_UI, // 648
arm650,arm_UI,arm652,arm_UI,arm654,arm_UI,arm656,arm_UI, // 650
arm650,arm_UI,arm652,arm_UI,arm654,arm_UI,arm656,arm_UI, // 658
arm640,arm_UI,arm642,arm_UI,arm644,arm_UI,arm646,arm_UI, // 660
arm640,arm_UI,arm642,arm_UI,arm644,arm_UI,arm646,arm_UI, // 668
arm650,arm_UI,arm652,arm_UI,arm654,arm_UI,arm656,arm_UI, // 670
arm650,arm_UI,arm652,arm_UI,arm654,arm_UI,arm656,arm_UI, // 678
arm680,arm_UI,arm682,arm_UI,arm684,arm_UI,arm686,arm_UI, // 680
arm680,arm_UI,arm682,arm_UI,arm684,arm_UI,arm686,arm_UI, // 688
arm690,arm_UI,arm692,arm_UI,arm694,arm_UI,arm696,arm_UI, // 690
arm690,arm_UI,arm692,arm_UI,arm694,arm_UI,arm696,arm_UI, // 698
arm680,arm_UI,arm682,arm_UI,arm684,arm_UI,arm686,arm_UI, // 6A0
arm680,arm_UI,arm682,arm_UI,arm684,arm_UI,arm686,arm_UI, // 6A8
arm690,arm_UI,arm692,arm_UI,arm694,arm_UI,arm696,arm_UI, // 6B0
arm690,arm_UI,arm692,arm_UI,arm694,arm_UI,arm696,arm_UI, // 6B8
arm6C0,arm_UI,arm6C2,arm_UI,arm6C4,arm_UI,arm6C6,arm_UI, // 6C0
arm6C0,arm_UI,arm6C2,arm_UI,arm6C4,arm_UI,arm6C6,arm_UI, // 6C8
arm6D0,arm_UI,arm6D2,arm_UI,arm6D4,arm_UI,arm6D6,arm_UI, // 6D0
arm6D0,arm_UI,arm6D2,arm_UI,arm6D4,arm_UI,arm6D6,arm_UI, // 6D8
arm6C0,arm_UI,arm6C2,arm_UI,arm6C4,arm_UI,arm6C6,arm_UI, // 6E0
arm6C0,arm_UI,arm6C2,arm_UI,arm6C4,arm_UI,arm6C6,arm_UI, // 6E8
arm6D0,arm_UI,arm6D2,arm_UI,arm6D4,arm_UI,arm6D6,arm_UI, // 6F0
arm6D0,arm_UI,arm6D2,arm_UI,arm6D4,arm_UI,arm6D6,arm_UI, // 6F8
arm700,arm_UI,arm702,arm_UI,arm704,arm_UI,arm706,arm_UI, // 700
arm700,arm_UI,arm702,arm_UI,arm704,arm_UI,arm706,arm_UI, // 708
arm710,arm_UI,arm712,arm_UI,arm714,arm_UI,arm716,arm_UI, // 710
arm710,arm_UI,arm712,arm_UI,arm714,arm_UI,arm716,arm_UI, // 718
arm720,arm_UI,arm722,arm_UI,arm724,arm_UI,arm726,arm_UI, // 720
arm720,arm_UI,arm722,arm_UI,arm724,arm_UI,arm726,arm_UI, // 728
arm730,arm_UI,arm732,arm_UI,arm734,arm_UI,arm736,arm_UI, // 730
arm730,arm_UI,arm732,arm_UI,arm734,arm_UI,arm736,arm_UI, // 738
arm740,arm_UI,arm742,arm_UI,arm744,arm_UI,arm746,arm_UI, // 740
arm740,arm_UI,arm742,arm_UI,arm744,arm_UI,arm746,arm_UI, // 748
arm750,arm_UI,arm752,arm_UI,arm754,arm_UI,arm756,arm_UI, // 750
arm750,arm_UI,arm752,arm_UI,arm754,arm_UI,arm756,arm_UI, // 758
arm760,arm_UI,arm762,arm_UI,arm764,arm_UI,arm766,arm_UI, // 760
arm760,arm_UI,arm762,arm_UI,arm764,arm_UI,arm766,arm_UI, // 768
arm770,arm_UI,arm772,arm_UI,arm774,arm_UI,arm776,arm_UI, // 770
arm770,arm_UI,arm772,arm_UI,arm774,arm_UI,arm776,arm_UI, // 778
arm780,arm_UI,arm782,arm_UI,arm784,arm_UI,arm786,arm_UI, // 780
arm780,arm_UI,arm782,arm_UI,arm784,arm_UI,arm786,arm_UI, // 788
arm790,arm_UI,arm792,arm_UI,arm794,arm_UI,arm796,arm_UI, // 790
arm790,arm_UI,arm792,arm_UI,arm794,arm_UI,arm796,arm_UI, // 798
arm7A0,arm_UI,arm7A2,arm_UI,arm7A4,arm_UI,arm7A6,arm_UI, // 7A0
arm7A0,arm_UI,arm7A2,arm_UI,arm7A4,arm_UI,arm7A6,arm_UI, // 7A8
arm7B0,arm_UI,arm7B2,arm_UI,arm7B4,arm_UI,arm7B6,arm_UI, // 7B0
arm7B0,arm_UI,arm7B2,arm_UI,arm7B4,arm_UI,arm7B6,arm_UI, // 7B8
arm7C0,arm_UI,arm7C2,arm_UI,arm7C4,arm_UI,arm7C6,arm_UI, // 7C0
arm7C0,arm_UI,arm7C2,arm_UI,arm7C4,arm_UI,arm7C6,arm_UI, // 7C8
arm7D0,arm_UI,arm7D2,arm_UI,arm7D4,arm_UI,arm7D6,arm_UI, // 7D0
arm7D0,arm_UI,arm7D2,arm_UI,arm7D4,arm_UI,arm7D6,arm_UI, // 7D8
arm7E0,arm_UI,arm7E2,arm_UI,arm7E4,arm_UI,arm7E6,arm_UI, // 7E0
arm7E0,arm_UI,arm7E2,arm_UI,arm7E4,arm_UI,arm7E6,arm_UI, // 7E8
arm7F0,arm_UI,arm7F2,arm_UI,arm7F4,arm_UI,arm7F6,arm_UI, // 7F0
arm7F0,arm_UI,arm7F2,arm_UI,arm7F4,arm_UI,arm7F6,arm_BP, // 7F8
REP16(arm800),REP16(arm810),REP16(arm820),REP16(arm830), // 800
REP16(arm840),REP16(arm850),REP16(arm860),REP16(arm870), // 840
REP16(arm880),REP16(arm890),REP16(arm8A0),REP16(arm8B0), // 880
REP16(arm8C0),REP16(arm8D0),REP16(arm8E0),REP16(arm8F0), // 8C0
REP16(arm900),REP16(arm910),REP16(arm920),REP16(arm930), // 900
REP16(arm940),REP16(arm950),REP16(arm960),REP16(arm970), // 940
REP16(arm980),REP16(arm990),REP16(arm9A0),REP16(arm9B0), // 980
REP16(arm9C0),REP16(arm9D0),REP16(arm9E0),REP16(arm9F0), // 9C0
REP256(armA00), // A00
REP256(armB00), // B00
REP256(arm_UI), // C00
REP256(arm_UI), // D00
arm_UI,armE01,arm_UI,armE01,arm_UI,armE01,arm_UI,armE01, // E00
arm_UI,armE01,arm_UI,armE01,arm_UI,armE01,arm_UI,armE01, // E08
arm_UI,armE01,arm_UI,armE01,arm_UI,armE01,arm_UI,armE01, // E10
arm_UI,armE01,arm_UI,armE01,arm_UI,armE01,arm_UI,armE01, // E18
REP16(arm_UI), // E20
REP16(arm_UI), // E30
REP16(arm_UI),REP16(arm_UI),REP16(arm_UI),REP16(arm_UI), // E40
REP16(arm_UI),REP16(arm_UI),REP16(arm_UI),REP16(arm_UI), // E80
REP16(arm_UI),REP16(arm_UI),REP16(arm_UI),REP16(arm_UI), // EC0
REP256(armF00) // F00
};
// Wrapper routine (execution loop) ///////////////////////////////////////
int armExecute()
{
do
{
if ((armNextPC & 0x0803FFFF) == 0x08020000)
busPrefetchCount = 0x100;
uint32_t opcode = cpuPrefetch[0];
cpuPrefetch[0] = cpuPrefetch[1];
busPrefetch = false;
if (busPrefetchCount & 0xFFFFFE00)
busPrefetchCount = 0x100 | (busPrefetchCount & 0xFF);
clockTicks = 0;
int oldArmNextPC = armNextPC;
armNextPC = reg[15].I;
reg[15].I += 4;
ARM_PREFETCH_NEXT();
int cond = opcode >> 28;
bool cond_res = true;
if (UNLIKELY(cond != 0x0E)) // most opcodes are AL (always)
{
switch (cond)
{
case 0x00: // EQ
cond_res = Z_FLAG;
break;
case 0x01: // NE
cond_res = !Z_FLAG;
break;
case 0x02: // CS
cond_res = C_FLAG;
break;
case 0x03: // CC
cond_res = !C_FLAG;
break;
case 0x04: // MI
cond_res = N_FLAG;
break;
case 0x05: // PL
cond_res = !N_FLAG;
break;
case 0x06: // VS
cond_res = V_FLAG;
break;
case 0x07: // VC
cond_res = !V_FLAG;
break;
case 0x08: // HI
cond_res = C_FLAG && !Z_FLAG;
break;
case 0x09: // LS
cond_res = !C_FLAG || Z_FLAG;
break;
case 0x0A: // GE
cond_res = N_FLAG == V_FLAG;
break;
case 0x0B: // LT
cond_res = N_FLAG != V_FLAG;
break;
case 0x0C: // GT
cond_res = !Z_FLAG && N_FLAG == V_FLAG;
break;
case 0x0D: // LE
cond_res = Z_FLAG || N_FLAG != V_FLAG;
break;
case 0x0E: // AL (impossible, checked above)
cond_res = true;
break;
default:
// ???
cond_res = false;
}
}
if (cond_res)
(*armInsnTable[((opcode >> 16) & 0xFF0) | ((opcode >> 4) & 0x0F)])(opcode);
if (clockTicks < 0)
return 0;
if (!clockTicks)
clockTicks = 1 + codeTicksAccessSeq32(oldArmNextPC);
cpuTotalTicks += clockTicks;
} while (cpuTotalTicks < cpuNextEvent && armState && !holdState && !SWITicks);
return 1;
}