Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 628 insertions, 0 deletions

diff --git a/capstone/arch/TMS320C64x/TMS320C64xDisassembler.c b/capstone/arch/TMS320C64x/TMS320C64xDisassembler.c
new file mode 100644
index 000000000..282918783
--- /dev/null
+++ b/capstone/arch/TMS320C64x/TMS320C64xDisassembler.c
@@ -0,0 +1,628 @@
+/* Capstone Disassembly Engine */
+/* TMS320C64x Backend by Fotis Loukos <me@fotisl.com> 2016 */
+
+#ifdef CAPSTONE_HAS_TMS320C64X
+
+#include <string.h>
+
+#include "../../cs_priv.h"
+#include "../../utils.h"
+
+#include "TMS320C64xDisassembler.h"
+
+#include "../../MCInst.h"
+#include "../../MCInstrDesc.h"
+#include "../../MCFixedLenDisassembler.h"
+#include "../../MCRegisterInfo.h"
+#include "../../MCDisassembler.h"
+#include "../../MathExtras.h"
+
+static uint64_t getFeatureBits(int mode);
+
+static DecodeStatus DecodeGPRegsRegisterClass(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeControlRegsRegisterClass(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeScst5(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeScst16(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodePCRelScst7(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodePCRelScst10(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodePCRelScst12(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodePCRelScst21(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeMemOperand(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeMemOperandSc(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeMemOperand2(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeRegPair5(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeRegPair4(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeCondRegister(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeCondRegisterZero(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeSide(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeParallel(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeCrosspathX1(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeCrosspathX2(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeCrosspathX3(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+static DecodeStatus DecodeNop(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder);
+
+#include "TMS320C64xGenDisassemblerTables.inc"
+
+#define GET_REGINFO_ENUM
+#define GET_REGINFO_MC_DESC
+#include "TMS320C64xGenRegisterInfo.inc"
+
+static const unsigned GPRegsDecoderTable[] = {
+	TMS320C64x_A0,  TMS320C64x_A1,  TMS320C64x_A2,  TMS320C64x_A3,
+	TMS320C64x_A4,  TMS320C64x_A5,  TMS320C64x_A6,  TMS320C64x_A7,
+	TMS320C64x_A8,  TMS320C64x_A9,  TMS320C64x_A10, TMS320C64x_A11,
+	TMS320C64x_A12, TMS320C64x_A13, TMS320C64x_A14, TMS320C64x_A15,
+	TMS320C64x_A16, TMS320C64x_A17, TMS320C64x_A18, TMS320C64x_A19,
+	TMS320C64x_A20, TMS320C64x_A21, TMS320C64x_A22, TMS320C64x_A23,
+	TMS320C64x_A24, TMS320C64x_A25, TMS320C64x_A26, TMS320C64x_A27,
+	TMS320C64x_A28, TMS320C64x_A29, TMS320C64x_A30, TMS320C64x_A31
+};
+
+static const unsigned ControlRegsDecoderTable[] = {
+	TMS320C64x_AMR,    TMS320C64x_CSR,  TMS320C64x_ISR,   TMS320C64x_ICR,
+	TMS320C64x_IER,    TMS320C64x_ISTP, TMS320C64x_IRP,   TMS320C64x_NRP,
+	~0U,               ~0U,             TMS320C64x_TSCL,  TMS320C64x_TSCH,
+	~0U,               TMS320C64x_ILC,  TMS320C64x_RILC,  TMS320C64x_REP,
+	TMS320C64x_PCE1,   TMS320C64x_DNUM, ~0U,              ~0U,
+	~0U,               TMS320C64x_SSR,  TMS320C64x_GPLYA, TMS320C64x_GPLYB,
+	TMS320C64x_GFPGFR, TMS320C64x_DIER, TMS320C64x_TSR,   TMS320C64x_ITSR,
+	TMS320C64x_NTSR,   TMS320C64x_ECR,  ~0U,              TMS320C64x_IERR
+};
+
+static uint64_t getFeatureBits(int mode)
+{
+	// support everything
+	return (uint64_t)-1;
+}
+
+static unsigned getReg(const unsigned *RegTable, unsigned RegNo)
+{
+	if(RegNo > 31)
+		return ~0U;
+	return RegTable[RegNo];
+}
+
+static DecodeStatus DecodeGPRegsRegisterClass(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder)
+{
+	unsigned Reg;
+
+	if(RegNo > 31)
+		return MCDisassembler_Fail;
+
+	Reg = getReg(GPRegsDecoderTable, RegNo);
+	if(Reg == ~0U)
+		return MCDisassembler_Fail;
+	MCOperand_CreateReg0(Inst, Reg);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeControlRegsRegisterClass(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder)
+{
+	unsigned Reg;
+
+	if(RegNo > 31)
+		return MCDisassembler_Fail;
+
+	Reg = getReg(ControlRegsDecoderTable, RegNo);
+	if(Reg == ~0U)
+		return MCDisassembler_Fail;
+	MCOperand_CreateReg0(Inst, Reg);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeScst5(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 5 bit value */
+	if(imm & (1 << (5 - 1)))
+		imm |= ~((1 << 5) - 1);
+
+	MCOperand_CreateImm0(Inst, imm);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeScst16(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 16 bit value */
+	if(imm & (1 << (16 - 1)))
+		imm |= ~((1 << 16) - 1);
+
+	MCOperand_CreateImm0(Inst, imm);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodePCRelScst7(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 7 bit value */
+	if(imm & (1 << (7 - 1)))
+		imm |= ~((1 << 7) - 1);
+
+	/* Address is relative to the address of the first instruction in the fetch packet */
+	MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodePCRelScst10(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 10 bit value */
+	if(imm & (1 << (10 - 1)))
+		imm |= ~((1 << 10) - 1);
+
+	/* Address is relative to the address of the first instruction in the fetch packet */
+	MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodePCRelScst12(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 12 bit value */
+	if(imm & (1 << (12 - 1)))
+		imm |= ~((1 << 12) - 1);
+
+	/* Address is relative to the address of the first instruction in the fetch packet */
+	MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodePCRelScst21(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	int32_t imm;
+
+	imm = Val;
+	/* Sign extend 21 bit value */
+	if(imm & (1 << (21 - 1)))
+		imm |= ~((1 << 21) - 1);
+
+	/* Address is relative to the address of the first instruction in the fetch packet */
+	MCOperand_CreateImm0(Inst, (Address & ~31) + (imm * 4));
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeMemOperand(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	return DecodeMemOperandSc(Inst, Val | (1 << 15), Address, Decoder);
+}
+
+static DecodeStatus DecodeMemOperandSc(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	uint8_t scaled, base, offset, mode, unit;
+	unsigned basereg, offsetreg;
+
+	scaled = (Val >> 15) & 1;
+	base = (Val >> 10) & 0x1f;
+	offset = (Val >> 5) & 0x1f;
+	mode = (Val >> 1) & 0xf;
+	unit = Val & 1;
+
+	if((base >= TMS320C64X_REG_A0) && (base <= TMS320C64X_REG_A31))
+		base = (base - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+	else if((base >= TMS320C64X_REG_B0) && (base <= TMS320C64X_REG_B31))
+		base = (base - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+	basereg = getReg(GPRegsDecoderTable, base);
+	if (basereg ==  ~0U)
+		return MCDisassembler_Fail;
+
+	switch(mode) {
+		case 0:
+		case 1:
+		case 8:
+		case 9:
+		case 10:
+		case 11:
+			MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) | (offset << 5) | (mode << 1) | unit);
+			break;
+		case 4:
+		case 5:
+		case 12:
+		case 13:
+		case 14:
+		case 15:
+			if((offset >= TMS320C64X_REG_A0) && (offset <= TMS320C64X_REG_A31))
+				offset = (offset - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+			else if((offset >= TMS320C64X_REG_B0) && (offset <= TMS320C64X_REG_B31))
+				offset = (offset - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+			offsetreg = getReg(GPRegsDecoderTable, offset);
+			if (offsetreg ==  ~0U)
+				return MCDisassembler_Fail;
+			MCOperand_CreateImm0(Inst, (scaled << 19) | (basereg << 12) | (offsetreg << 5) | (mode << 1) | unit);
+			break;
+		default:
+			return MCDisassembler_Fail;
+	}
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeMemOperand2(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	uint16_t offset;
+	unsigned basereg;
+
+	if(Val & 1)
+		basereg = TMS320C64X_REG_B15;
+	else
+		basereg = TMS320C64X_REG_B14;
+
+	offset = (Val >> 1) & 0x7fff;
+	MCOperand_CreateImm0(Inst, (offset << 7) | basereg);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeRegPair5(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder)
+{
+	unsigned Reg;
+
+	if(RegNo > 31)
+		return MCDisassembler_Fail;
+
+	Reg = getReg(GPRegsDecoderTable, RegNo);
+	MCOperand_CreateReg0(Inst, Reg);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeRegPair4(MCInst *Inst, unsigned RegNo,
+		uint64_t Address, void *Decoder)
+{
+	unsigned Reg;
+
+	if(RegNo > 15)
+		return MCDisassembler_Fail;
+
+	Reg = getReg(GPRegsDecoderTable, RegNo << 1);
+	MCOperand_CreateReg0(Inst, Reg);
+
+	return MCDisassembler_Success;
+}
+
+static DecodeStatus DecodeCondRegister(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+		case 7:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_INVALID;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_B0;
+			break;
+		case 2:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_B1;
+			break;
+		case 3:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_B2;
+			break;
+		case 4:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_A1;
+			break;
+		case 5:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_A2;
+			break;
+		case 6:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_A0;
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.condition.reg = TMS320C64X_REG_INVALID;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeCondRegisterZero(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.condition.zero = 1;
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.condition.zero = 0;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeSide(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+	MCOperand *op;
+	int i;
+
+	/* This is pretty messy, probably we should find a better way */
+	if(Val == 1) {
+		for(i = 0; i < Inst->size; i++) {
+			op = &Inst->Operands[i];
+			if(op->Kind == kRegister) {
+				if((op->RegVal >= TMS320C64X_REG_A0) && (op->RegVal <= TMS320C64X_REG_A31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+				else if((op->RegVal >= TMS320C64X_REG_B0) && (op->RegVal <= TMS320C64X_REG_B31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+			}
+		}
+	}
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.funit.side = 1;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.funit.side = 2;
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.funit.side = 0;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeParallel(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.parallel = 0;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.parallel = 1;
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.parallel = -1;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeCrosspathX1(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+	MCOperand *op;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
+			op = &Inst->Operands[0];
+			if(op->Kind == kRegister) {
+				if((op->RegVal >= TMS320C64X_REG_A0) && (op->RegVal <= TMS320C64X_REG_A31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+				else if((op->RegVal >= TMS320C64X_REG_B0) && (op->RegVal <= TMS320C64X_REG_B31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+			}
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeCrosspathX2(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+	MCOperand *op;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 1;
+			op = &Inst->Operands[1];
+			if(op->Kind == kRegister) {
+				if((op->RegVal >= TMS320C64X_REG_A0) && (op->RegVal <= TMS320C64X_REG_A31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+				else if((op->RegVal >= TMS320C64X_REG_B0) && (op->RegVal <= TMS320C64X_REG_B31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+			}
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+static DecodeStatus DecodeCrosspathX3(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	DecodeStatus ret = MCDisassembler_Success;
+	MCOperand *op;
+
+	if(!Inst->flat_insn->detail)
+		return MCDisassembler_Success;
+
+	switch(Val) {
+		case 0:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 0;
+			break;
+		case 1:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = 2;
+			op = &Inst->Operands[2];
+			if(op->Kind == kRegister) {
+				if((op->RegVal >= TMS320C64X_REG_A0) && (op->RegVal <= TMS320C64X_REG_A31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_A0 + TMS320C64X_REG_B0);
+				else if((op->RegVal >= TMS320C64X_REG_B0) && (op->RegVal <= TMS320C64X_REG_B31))
+					op->RegVal = (op->RegVal - TMS320C64X_REG_B0 + TMS320C64X_REG_A0);
+			}
+			break;
+		default:
+			Inst->flat_insn->detail->tms320c64x.funit.crosspath = -1;
+			ret = MCDisassembler_Fail;
+			break;
+	}
+
+	return ret;
+}
+
+
+static DecodeStatus DecodeNop(MCInst *Inst, unsigned Val,
+		uint64_t Address, void *Decoder)
+{
+	MCOperand_CreateImm0(Inst, Val + 1);
+
+	return MCDisassembler_Success;
+}
+
+#define GET_INSTRINFO_ENUM
+#include "TMS320C64xGenInstrInfo.inc"
+
+bool TMS320C64x_getInstruction(csh ud, const uint8_t *code, size_t code_len,
+		MCInst *MI, uint16_t *size, uint64_t address, void *info)
+{
+	uint32_t insn;
+	DecodeStatus result;
+
+	if(code_len < 4) {
+		*size = 0;
+		return MCDisassembler_Fail;
+	}
+
+	if(MI->flat_insn->detail)
+		memset(MI->flat_insn->detail, 0, offsetof(cs_detail, tms320c64x)+sizeof(cs_tms320c64x));
+
+	insn = (code[3] << 0) | (code[2] << 8) | (code[1] << 16) | ((uint32_t) code[0] << 24);
+	result = decodeInstruction_4(DecoderTable32, MI, insn, address, info, 0);
+
+	if(result == MCDisassembler_Success) {
+		*size = 4;
+		return true;
+	}
+
+	MCInst_clear(MI);
+	*size = 0;
+	return false;
+}
+
+void TMS320C64x_init(MCRegisterInfo *MRI)
+{
+	MCRegisterInfo_InitMCRegisterInfo(MRI, TMS320C64xRegDesc, 90,
+			0, 0,
+			TMS320C64xMCRegisterClasses, 7,
+			0, 0,
+			TMS320C64xRegDiffLists,
+			0,
+			TMS320C64xSubRegIdxLists, 1,
+			0);
+}
+
+#endif