MicroMipsInstrFormats.td [plain text]
//===----------------------------------------------------------------------===//
// MicroMIPS Base Classes
//===----------------------------------------------------------------------===//
//
// Base class for MicroMips instructions.
// This class does not depend on the instruction size.
//
class MicroMipsInstBase<dag outs, dag ins, string asmstr, list<dag> pattern,
InstrItinClass itin, Format f> : Instruction
{
let Namespace = "Mips";
let DecoderNamespace = "MicroMips";
let OutOperandList = outs;
let InOperandList = ins;
let AsmString = asmstr;
let Pattern = pattern;
let Itinerary = itin;
let Predicates = [InMicroMips];
Format Form = f;
}
//
// Base class for MicroMIPS 16-bit instructions.
//
class MicroMipsInst16<dag outs, dag ins, string asmstr, list<dag> pattern,
InstrItinClass itin, Format f> :
MicroMipsInstBase<outs, ins, asmstr, pattern, itin, f>
{
let Size = 2;
field bits<16> Inst;
field bits<16> SoftFail = 0;
bits<6> Opcode = 0x0;
}
//===----------------------------------------------------------------------===//
// MicroMIPS 16-bit Instruction Formats
//===----------------------------------------------------------------------===//
class ARITH_FM_MM16<bit funct> {
bits<3> rd;
bits<3> rt;
bits<3> rs;
bits<16> Inst;
let Inst{15-10} = 0x01;
let Inst{9-7} = rd;
let Inst{6-4} = rt;
let Inst{3-1} = rs;
let Inst{0} = funct;
}
class ANDI_FM_MM16<bits<6> funct> {
bits<3> rd;
bits<3> rs;
bits<4> imm;
bits<16> Inst;
let Inst{15-10} = funct;
let Inst{9-7} = rd;
let Inst{6-4} = rs;
let Inst{3-0} = imm;
}
class LOGIC_FM_MM16<bits<4> funct> {
bits<3> rt;
bits<3> rs;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-6} = funct;
let Inst{5-3} = rt;
let Inst{2-0} = rs;
}
class SHIFT_FM_MM16<bits<1> funct> {
bits<3> rd;
bits<3> rt;
bits<3> shamt;
bits<16> Inst;
let Inst{15-10} = 0x09;
let Inst{9-7} = rd;
let Inst{6-4} = rt;
let Inst{3-1} = shamt;
let Inst{0} = funct;
}
class ADDIUR2_FM_MM16 {
bits<3> rd;
bits<3> rs;
bits<3> imm;
bits<16> Inst;
let Inst{15-10} = 0x1b;
let Inst{9-7} = rd;
let Inst{6-4} = rs;
let Inst{3-1} = imm;
let Inst{0} = 0;
}
class LOAD_STORE_FM_MM16<bits<6> op> {
bits<3> rt;
bits<7> addr;
bits<16> Inst;
let Inst{15-10} = op;
let Inst{9-7} = rt;
let Inst{6-4} = addr{6-4};
let Inst{3-0} = addr{3-0};
}
class LOAD_STORE_SP_FM_MM16<bits<6> op> {
bits<5> rt;
bits<5> offset;
bits<16> Inst;
let Inst{15-10} = op;
let Inst{9-5} = rt;
let Inst{4-0} = offset;
}
class LOAD_GP_FM_MM16<bits<6> op> {
bits<3> rt;
bits<7> offset;
bits<16> Inst;
let Inst{15-10} = op;
let Inst{9-7} = rt;
let Inst{6-0} = offset;
}
class ADDIUS5_FM_MM16 {
bits<5> rd;
bits<4> imm;
bits<16> Inst;
let Inst{15-10} = 0x13;
let Inst{9-5} = rd;
let Inst{4-1} = imm;
let Inst{0} = 0;
}
class ADDIUSP_FM_MM16 {
bits<9> imm;
bits<16> Inst;
let Inst{15-10} = 0x13;
let Inst{9-1} = imm;
let Inst{0} = 1;
}
class MOVE_FM_MM16<bits<6> funct> {
bits<5> rs;
bits<5> rd;
bits<16> Inst;
let Inst{15-10} = funct;
let Inst{9-5} = rd;
let Inst{4-0} = rs;
}
class LI_FM_MM16 {
bits<3> rd;
bits<7> imm;
bits<16> Inst;
let Inst{15-10} = 0x3b;
let Inst{9-7} = rd;
let Inst{6-0} = imm;
}
class JALR_FM_MM16<bits<5> op> {
bits<5> rs;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-5} = op;
let Inst{4-0} = rs;
}
class MFHILO_FM_MM16<bits<5> funct> {
bits<5> rd;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-5} = funct;
let Inst{4-0} = rd;
}
class JRADDIUSP_FM_MM16<bits<5> op> {
bits<5> rs;
bits<5> imm;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-5} = op;
let Inst{4-0} = imm;
}
class ADDIUR1SP_FM_MM16 {
bits<3> rd;
bits<6> imm;
bits<16> Inst;
let Inst{15-10} = 0x1b;
let Inst{9-7} = rd;
let Inst{6-1} = imm;
let Inst{0} = 1;
}
class BRKSDBBP16_FM_MM<bits<6> op> {
bits<4> code_;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-4} = op;
let Inst{3-0} = code_;
}
class BEQNEZ_FM_MM16<bits<6> op> {
bits<3> rs;
bits<7> offset;
bits<16> Inst;
let Inst{15-10} = op;
let Inst{9-7} = rs;
let Inst{6-0} = offset;
}
class B16_FM {
bits<10> offset;
bits<16> Inst;
let Inst{15-10} = 0x33;
let Inst{9-0} = offset;
}
//===----------------------------------------------------------------------===//
// MicroMIPS 32-bit Instruction Formats
//===----------------------------------------------------------------------===//
class MMArch {
string Arch = "micromips";
list<dag> Pattern = [];
}
class ADD_FM_MM<bits<6> op, bits<10> funct> : MMArch {
bits<5> rt;
bits<5> rs;
bits<5> rd;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-11} = rd;
let Inst{10} = 0;
let Inst{9-0} = funct;
}
class ADDI_FM_MM<bits<6> op> : MMArch {
bits<5> rs;
bits<5> rt;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-0} = imm16;
}
class SLTI_FM_MM<bits<6> op> : MMArch {
bits<5> rt;
bits<5> rs;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-0} = imm16;
}
class LUI_FM_MM : MMArch {
bits<5> rt;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = 0xd;
let Inst{20-16} = rt;
let Inst{15-0} = imm16;
}
class MULT_FM_MM<bits<10> funct> : MMArch {
bits<5> rs;
bits<5> rt;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class SRA_FM_MM<bits<10> funct, bit rotate> : MMArch {
bits<5> rd;
bits<5> rt;
bits<5> shamt;
bits<32> Inst;
let Inst{31-26} = 0;
let Inst{25-21} = rd;
let Inst{20-16} = rt;
let Inst{15-11} = shamt;
let Inst{10} = rotate;
let Inst{9-0} = funct;
}
class SRLV_FM_MM<bits<10> funct, bit rotate> : MMArch {
bits<5> rd;
bits<5> rt;
bits<5> rs;
bits<32> Inst;
let Inst{31-26} = 0;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-11} = rd;
let Inst{10} = rotate;
let Inst{9-0} = funct;
}
class LW_FM_MM<bits<6> op> : MMArch {
bits<5> rt;
bits<21> addr;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = addr{20-16};
let Inst{15-0} = addr{15-0};
}
class LWL_FM_MM<bits<4> funct> {
bits<5> rt;
bits<21> addr;
bits<32> Inst;
let Inst{31-26} = 0x18;
let Inst{25-21} = rt;
let Inst{20-16} = addr{20-16};
let Inst{15-12} = funct;
let Inst{11-0} = addr{11-0};
}
class CMov_F_I_FM_MM<bits<7> func> : MMArch {
bits<5> rd;
bits<5> rs;
bits<3> fcc;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = rd;
let Inst{20-16} = rs;
let Inst{15-13} = fcc;
let Inst{12-6} = func;
let Inst{5-0} = 0x3b;
}
class MTLO_FM_MM<bits<10> funct> : MMArch {
bits<5> rs;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = 0x00;
let Inst{20-16} = rs;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class MFLO_FM_MM<bits<10> funct> : MMArch {
bits<5> rd;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = 0x00;
let Inst{20-16} = rd;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class CLO_FM_MM<bits<10> funct> : MMArch {
bits<5> rd;
bits<5> rs;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rd;
let Inst{20-16} = rs;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class SEB_FM_MM<bits<10> funct> : MMArch {
bits<5> rd;
bits<5> rt;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rd;
let Inst{20-16} = rt;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class EXT_FM_MM<bits<6> funct> : MMArch {
bits<5> rt;
bits<5> rs;
bits<5> pos;
bits<5> size;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-11} = size;
let Inst{10-6} = pos;
let Inst{5-0} = funct;
}
class J_FM_MM<bits<6> op> : MMArch {
bits<26> target;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-0} = target;
}
class JR_FM_MM<bits<8> funct> : MMArch {
bits<5> rs;
bits<32> Inst;
let Inst{31-21} = 0x00;
let Inst{20-16} = rs;
let Inst{15-14} = 0x0;
let Inst{13-6} = funct;
let Inst{5-0} = 0x3c;
}
class JALR_FM_MM<bits<10> funct> {
bits<5> rs;
bits<5> rd;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rd;
let Inst{20-16} = rs;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class BEQ_FM_MM<bits<6> op> : MMArch {
bits<5> rs;
bits<5> rt;
bits<16> offset;
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-0} = offset;
}
class BGEZ_FM_MM<bits<5> funct> : MMArch {
bits<5> rs;
bits<16> offset;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = funct;
let Inst{20-16} = rs;
let Inst{15-0} = offset;
}
class BGEZAL_FM_MM<bits<5> funct> : MMArch {
bits<5> rs;
bits<16> offset;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = funct;
let Inst{20-16} = rs;
let Inst{15-0} = offset;
}
class SYNC_FM_MM : MMArch {
bits<5> stype;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = 0x0;
let Inst{20-16} = stype;
let Inst{15-6} = 0x1ad;
let Inst{5-0} = 0x3c;
}
class BRK_FM_MM : MMArch {
bits<10> code_1;
bits<10> code_2;
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-16} = code_1;
let Inst{15-6} = code_2;
let Inst{5-0} = 0x07;
}
class SYS_FM_MM : MMArch {
bits<10> code_;
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-16} = code_;
let Inst{15-6} = 0x22d;
let Inst{5-0} = 0x3c;
}
class WAIT_FM_MM {
bits<10> code_;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-16} = code_;
let Inst{15-6} = 0x24d;
let Inst{5-0} = 0x3c;
}
class ER_FM_MM<bits<10> funct> : MMArch {
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-16} = 0x00;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class EI_FM_MM<bits<10> funct> : MMArch {
bits<32> Inst;
bits<5> rt;
let Inst{31-26} = 0x00;
let Inst{25-21} = 0x00;
let Inst{20-16} = rt;
let Inst{15-6} = funct;
let Inst{5-0} = 0x3c;
}
class TEQ_FM_MM<bits<6> funct> : MMArch {
bits<5> rs;
bits<5> rt;
bits<4> code_;
bits<32> Inst;
let Inst{31-26} = 0x00;
let Inst{25-21} = rt;
let Inst{20-16} = rs;
let Inst{15-12} = code_;
let Inst{11-6} = funct;
let Inst{5-0} = 0x3c;
}
class TEQI_FM_MM<bits<5> funct> : MMArch {
bits<5> rs;
bits<16> imm16;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = funct;
let Inst{20-16} = rs;
let Inst{15-0} = imm16;
}
class LL_FM_MM<bits<4> funct> {
bits<5> rt;
bits<21> addr;
bits<32> Inst;
let Inst{31-26} = 0x18;
let Inst{25-21} = rt;
let Inst{20-16} = addr{20-16};
let Inst{15-12} = funct;
let Inst{11-0} = addr{11-0};
}
class ADDS_FM_MM<bits<2> fmt, bits<8> funct> : MMArch {
bits<5> ft;
bits<5> fs;
bits<5> fd;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = ft;
let Inst{20-16} = fs;
let Inst{15-11} = fd;
let Inst{10} = 0;
let Inst{9-8} = fmt;
let Inst{7-0} = funct;
list<dag> Pattern = [];
}
class LWXC1_FM_MM<bits<9> funct> : MMArch {
bits<5> fd;
bits<5> base;
bits<5> index;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = index;
let Inst{20-16} = base;
let Inst{15-11} = fd;
let Inst{10-9} = 0x0;
let Inst{8-0} = funct;
}
class SWXC1_FM_MM<bits<9> funct> : MMArch {
bits<5> fs;
bits<5> base;
bits<5> index;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = index;
let Inst{20-16} = base;
let Inst{15-11} = fs;
let Inst{10-9} = 0x0;
let Inst{8-0} = funct;
}
class CEQS_FM_MM<bits<2> fmt> : MMArch {
bits<5> fs;
bits<5> ft;
bits<4> cond;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = ft;
let Inst{20-16} = fs;
let Inst{15-13} = 0x0; // cc
let Inst{12} = 0;
let Inst{11-10} = fmt;
let Inst{9-6} = cond;
let Inst{5-0} = 0x3c;
}
class BC1F_FM_MM<bits<5> tf> : MMArch {
bits<16> offset;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = tf;
let Inst{20-18} = 0x0; // cc
let Inst{17-16} = 0x0;
let Inst{15-0} = offset;
}
class ROUND_W_FM_MM<bits<1> fmt, bits<8> funct> : MMArch {
bits<5> fd;
bits<5> fs;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = fd;
let Inst{20-16} = fs;
let Inst{15} = 0;
let Inst{14} = fmt;
let Inst{13-6} = funct;
let Inst{5-0} = 0x3b;
}
class ABS_FM_MM<bits<2> fmt, bits<7> funct> : MMArch {
bits<5> fd;
bits<5> fs;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = fd;
let Inst{20-16} = fs;
let Inst{15} = 0;
let Inst{14-13} = fmt;
let Inst{12-6} = funct;
let Inst{5-0} = 0x3b;
}
class CMov_F_F_FM_MM<bits<9> func, bits<2> fmt> : MMArch {
bits<5> fd;
bits<5> fs;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = fd;
let Inst{20-16} = fs;
let Inst{15-13} = 0x0; //cc
let Inst{12-11} = 0x0;
let Inst{10-9} = fmt;
let Inst{8-0} = func;
}
class CMov_I_F_FM_MM<bits<8> funct, bits<2> fmt> : MMArch {
bits<5> fd;
bits<5> fs;
bits<5> rt;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = rt;
let Inst{20-16} = fs;
let Inst{15-11} = fd;
let Inst{9-8} = fmt;
let Inst{7-0} = funct;
}
class MFC1_FM_MM<bits<8> funct> : MMArch {
bits<5> rt;
bits<5> fs;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = rt;
let Inst{20-16} = fs;
let Inst{15-14} = 0x0;
let Inst{13-6} = funct;
let Inst{5-0} = 0x3b;
}
class MADDS_FM_MM<bits<6> funct>: MMArch {
bits<5> ft;
bits<5> fs;
bits<5> fd;
bits<5> fr;
bits<32> Inst;
let Inst{31-26} = 0x15;
let Inst{25-21} = ft;
let Inst{20-16} = fs;
let Inst{15-11} = fd;
let Inst{10-6} = fr;
let Inst{5-0} = funct;
}
class COMPACT_BRANCH_FM_MM<bits<5> funct> {
bits<5> rs;
bits<16> offset;
bits<32> Inst;
let Inst{31-26} = 0x10;
let Inst{25-21} = funct;
let Inst{20-16} = rs;
let Inst{15-0} = offset;
}
class COP0_TLB_FM_MM<bits<10> op> : MMArch {
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-16} = 0x0;
let Inst{15-6} = op;
let Inst{5-0} = 0x3c;
}
class SDBBP_FM_MM : MMArch {
bits<10> code_;
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-16} = code_;
let Inst{15-6} = 0x36d;
let Inst{5-0} = 0x3c;
}
class RDHWR_FM_MM : MMArch {
bits<5> rt;
bits<5> rd;
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-21} = rt;
let Inst{20-16} = rd;
let Inst{15-6} = 0x1ac;
let Inst{5-0} = 0x3c;
}
class LWXS_FM_MM<bits<10> funct> {
bits<5> rd;
bits<5> base;
bits<5> index;
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-21} = index;
let Inst{20-16} = base;
let Inst{15-11} = rd;
let Inst{10} = 0;
let Inst{9-0} = funct;
}
class LWM_FM_MM<bits<4> funct> : MMArch {
bits<5> rt;
bits<21> addr;
bits<32> Inst;
let Inst{31-26} = 0x8;
let Inst{25-21} = rt;
let Inst{20-16} = addr{20-16};
let Inst{15-12} = funct;
let Inst{11-0} = addr{11-0};
}
class LWM_FM_MM16<bits<4> funct> : MMArch {
bits<2> rt;
bits<4> addr;
bits<16> Inst;
let Inst{15-10} = 0x11;
let Inst{9-6} = funct;
let Inst{5-4} = rt;
let Inst{3-0} = addr;
}
class CACHE_PREF_FM_MM<bits<6> op, bits<4> funct> : MMArch {
bits<21> addr;
bits<5> hint;
bits<5> base = addr{20-16};
bits<12> offset = addr{11-0};
bits<32> Inst;
let Inst{31-26} = op;
let Inst{25-21} = hint;
let Inst{20-16} = base;
let Inst{15-12} = funct;
let Inst{11-0} = offset;
}
class BARRIER_FM_MM<bits<5> op> : MMArch {
bits<32> Inst;
let Inst{31-26} = 0x0;
let Inst{25-21} = 0x0;
let Inst{20-16} = 0x0;
let Inst{15-11} = op;
let Inst{10-6} = 0x0;
let Inst{5-0} = 0x0;
}
class ADDIUPC_FM_MM {
bits<3> rs;
bits<23> imm;
bits<32> Inst;
let Inst{31-26} = 0x1e;
let Inst{25-23} = rs;
let Inst{22-0} = imm;
}