mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-09 10:05:41 +00:00
3ac3e7451b
Differential Revision: http://llvm-reviews.chandlerc.com/D3112 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204325 91177308-0d34-0410-b5e6-96231b3b80d8
613 lines
11 KiB
TableGen
613 lines
11 KiB
TableGen
//===----------------------------------------------------------------------===//
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// MicroMIPS Base Classes
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//===----------------------------------------------------------------------===//
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//
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// Base class for MicroMips instructions.
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// This class does not depend on the instruction size.
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//
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class MicroMipsInstBase<dag outs, dag ins, string asmstr, list<dag> pattern,
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InstrItinClass itin, Format f> : Instruction
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{
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let Namespace = "Mips";
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let DecoderNamespace = "MicroMips";
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let OutOperandList = outs;
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let InOperandList = ins;
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let AsmString = asmstr;
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let Pattern = pattern;
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let Itinerary = itin;
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let Predicates = [InMicroMips];
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Format Form = f;
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}
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//
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// Base class for MicroMIPS 16-bit instructions.
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//
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class MicroMipsInst16<dag outs, dag ins, string asmstr, list<dag> pattern,
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InstrItinClass itin, Format f> :
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MicroMipsInstBase<outs, ins, asmstr, pattern, itin, f>
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{
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let Size = 2;
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field bits<16> Inst;
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field bits<16> SoftFail = 0;
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bits<6> Opcode = 0x0;
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}
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//===----------------------------------------------------------------------===//
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// MicroMIPS 16-bit Instruction Formats
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//===----------------------------------------------------------------------===//
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class MOVE_FM_MM16<bits<6> funct> {
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bits<5> rs;
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bits<5> rd;
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bits<16> Inst;
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let Inst{15-10} = funct;
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let Inst{9-5} = rd;
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let Inst{4-0} = rs;
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}
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class JALR_FM_MM16<bits<5> op> {
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bits<5> rs;
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bits<16> Inst;
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let Inst{15-10} = 0x11;
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let Inst{9-5} = op;
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let Inst{4-0} = rs;
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}
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//===----------------------------------------------------------------------===//
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// MicroMIPS 32-bit Instruction Formats
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//===----------------------------------------------------------------------===//
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class MMArch {
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string Arch = "micromips";
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list<dag> Pattern = [];
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}
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class ADD_FM_MM<bits<6> op, bits<10> funct> : MMArch {
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bits<5> rt;
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bits<5> rs;
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bits<5> rd;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-11} = rd;
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let Inst{10} = 0;
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let Inst{9-0} = funct;
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}
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class ADDI_FM_MM<bits<6> op> : MMArch {
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bits<5> rs;
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bits<5> rt;
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bits<16> imm16;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-0} = imm16;
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}
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class SLTI_FM_MM<bits<6> op> : MMArch {
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bits<5> rt;
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bits<5> rs;
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bits<16> imm16;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-0} = imm16;
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}
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class LUI_FM_MM : MMArch {
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bits<5> rt;
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bits<16> imm16;
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bits<32> Inst;
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let Inst{31-26} = 0x10;
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let Inst{25-21} = 0xd;
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let Inst{20-16} = rt;
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let Inst{15-0} = imm16;
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}
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class MULT_FM_MM<bits<10> funct> : MMArch {
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bits<5> rs;
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bits<5> rt;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class SRA_FM_MM<bits<10> funct, bit rotate> : MMArch {
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bits<5> rd;
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bits<5> rt;
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bits<5> shamt;
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bits<32> Inst;
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let Inst{31-26} = 0;
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let Inst{25-21} = rd;
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let Inst{20-16} = rt;
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let Inst{15-11} = shamt;
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let Inst{10} = rotate;
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let Inst{9-0} = funct;
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}
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class SRLV_FM_MM<bits<10> funct, bit rotate> : MMArch {
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bits<5> rd;
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bits<5> rt;
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bits<5> rs;
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bits<32> Inst;
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let Inst{31-26} = 0;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-11} = rd;
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let Inst{10} = rotate;
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let Inst{9-0} = funct;
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}
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class LW_FM_MM<bits<6> op> : MMArch {
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bits<5> rt;
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bits<21> addr;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-21} = rt;
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let Inst{20-16} = addr{20-16};
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let Inst{15-0} = addr{15-0};
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}
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class LWL_FM_MM<bits<4> funct> {
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bits<5> rt;
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bits<21> addr;
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bits<32> Inst;
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let Inst{31-26} = 0x18;
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let Inst{25-21} = rt;
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let Inst{20-16} = addr{20-16};
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let Inst{15-12} = funct;
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let Inst{11-0} = addr{11-0};
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}
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class CMov_F_I_FM_MM<bits<7> func> : MMArch {
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bits<5> rd;
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bits<5> rs;
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bits<3> fcc;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = rd;
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let Inst{20-16} = rs;
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let Inst{15-13} = fcc;
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let Inst{12-6} = func;
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let Inst{5-0} = 0x3b;
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}
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class MTLO_FM_MM<bits<10> funct> : MMArch {
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bits<5> rs;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = 0x00;
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let Inst{20-16} = rs;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class MFLO_FM_MM<bits<10> funct> : MMArch {
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bits<5> rd;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = 0x00;
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let Inst{20-16} = rd;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class CLO_FM_MM<bits<10> funct> : MMArch {
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bits<5> rd;
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bits<5> rs;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rd;
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let Inst{20-16} = rs;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class SEB_FM_MM<bits<10> funct> : MMArch {
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bits<5> rd;
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bits<5> rt;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rd;
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let Inst{20-16} = rt;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class EXT_FM_MM<bits<6> funct> : MMArch {
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bits<5> rt;
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bits<5> rs;
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bits<5> pos;
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bits<5> size;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-11} = size;
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let Inst{10-6} = pos;
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let Inst{5-0} = funct;
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}
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class J_FM_MM<bits<6> op> : MMArch {
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bits<26> target;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-0} = target;
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}
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class JR_FM_MM<bits<8> funct> : MMArch {
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bits<5> rs;
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bits<32> Inst;
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let Inst{31-21} = 0x00;
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let Inst{20-16} = rs;
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let Inst{15-14} = 0x0;
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let Inst{13-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class JALR_FM_MM<bits<10> funct> {
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bits<5> rs;
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bits<5> rd;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rd;
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let Inst{20-16} = rs;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class BEQ_FM_MM<bits<6> op> : MMArch {
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bits<5> rs;
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bits<5> rt;
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bits<16> offset;
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bits<32> Inst;
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let Inst{31-26} = op;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-0} = offset;
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}
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class BGEZ_FM_MM<bits<5> funct> : MMArch {
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bits<5> rs;
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bits<16> offset;
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bits<32> Inst;
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let Inst{31-26} = 0x10;
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let Inst{25-21} = funct;
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let Inst{20-16} = rs;
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let Inst{15-0} = offset;
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}
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class BGEZAL_FM_MM<bits<5> funct> : MMArch {
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bits<5> rs;
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bits<16> offset;
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bits<32> Inst;
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let Inst{31-26} = 0x10;
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let Inst{25-21} = funct;
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let Inst{20-16} = rs;
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let Inst{15-0} = offset;
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}
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class SYNC_FM_MM : MMArch {
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bits<5> stype;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = 0x0;
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let Inst{20-16} = stype;
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let Inst{15-6} = 0x1ad;
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let Inst{5-0} = 0x3c;
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}
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class BRK_FM_MM : MMArch {
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bits<10> code_1;
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bits<10> code_2;
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bits<32> Inst;
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let Inst{31-26} = 0x0;
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let Inst{25-16} = code_1;
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let Inst{15-6} = code_2;
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let Inst{5-0} = 0x07;
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}
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class SYS_FM_MM : MMArch {
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bits<10> code_;
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bits<32> Inst;
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let Inst{31-26} = 0x0;
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let Inst{25-16} = code_;
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let Inst{15-6} = 0x22d;
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let Inst{5-0} = 0x3c;
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}
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class WAIT_FM_MM : MMArch {
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-16} = 0x00;
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let Inst{15-6} = 0x24d;
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let Inst{5-0} = 0x3c;
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}
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class ER_FM_MM<bits<10> funct> : MMArch {
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-16} = 0x00;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class EI_FM_MM<bits<10> funct> : MMArch {
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bits<32> Inst;
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bits<5> rt;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = 0x00;
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let Inst{20-16} = rt;
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let Inst{15-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class TEQ_FM_MM<bits<6> funct> : MMArch {
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bits<5> rs;
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bits<5> rt;
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bits<4> code_;
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bits<32> Inst;
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let Inst{31-26} = 0x00;
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let Inst{25-21} = rt;
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let Inst{20-16} = rs;
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let Inst{15-12} = code_;
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let Inst{11-6} = funct;
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let Inst{5-0} = 0x3c;
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}
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class TEQI_FM_MM<bits<5> funct> : MMArch {
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bits<5> rs;
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bits<16> imm16;
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bits<32> Inst;
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let Inst{31-26} = 0x10;
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let Inst{25-21} = funct;
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let Inst{20-16} = rs;
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let Inst{15-0} = imm16;
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}
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class LL_FM_MM<bits<4> funct> {
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bits<5> rt;
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bits<21> addr;
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bits<32> Inst;
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let Inst{31-26} = 0x18;
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let Inst{25-21} = rt;
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let Inst{20-16} = addr{20-16};
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let Inst{15-12} = funct;
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let Inst{11-0} = addr{11-0};
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}
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class ADDS_FM_MM<bits<2> fmt, bits<8> funct> : MMArch {
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bits<5> ft;
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bits<5> fs;
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bits<5> fd;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = ft;
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let Inst{20-16} = fs;
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let Inst{15-11} = fd;
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let Inst{10} = 0;
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let Inst{9-8} = fmt;
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let Inst{7-0} = funct;
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list<dag> Pattern = [];
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}
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class LWXC1_FM_MM<bits<9> funct> : MMArch {
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bits<5> fd;
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bits<5> base;
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bits<5> index;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = index;
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let Inst{20-16} = base;
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let Inst{15-11} = fd;
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let Inst{10-9} = 0x0;
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let Inst{8-0} = funct;
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}
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class SWXC1_FM_MM<bits<9> funct> : MMArch {
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bits<5> fs;
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bits<5> base;
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bits<5> index;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = index;
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let Inst{20-16} = base;
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let Inst{15-11} = fs;
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let Inst{10-9} = 0x0;
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let Inst{8-0} = funct;
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}
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class CEQS_FM_MM<bits<2> fmt> : MMArch {
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bits<5> fs;
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bits<5> ft;
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bits<4> cond;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = ft;
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let Inst{20-16} = fs;
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let Inst{15-13} = 0x0; // cc
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let Inst{12} = 0;
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let Inst{11-10} = fmt;
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let Inst{9-6} = cond;
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let Inst{5-0} = 0x3c;
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}
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class BC1F_FM_MM<bits<5> tf> : MMArch {
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bits<16> offset;
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bits<32> Inst;
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let Inst{31-26} = 0x10;
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let Inst{25-21} = tf;
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let Inst{20-18} = 0x0; // cc
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let Inst{17-16} = 0x0;
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let Inst{15-0} = offset;
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}
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class ROUND_W_FM_MM<bits<1> fmt, bits<8> funct> : MMArch {
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bits<5> fd;
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bits<5> fs;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = fd;
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let Inst{20-16} = fs;
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let Inst{15} = 0;
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let Inst{14} = fmt;
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let Inst{13-6} = funct;
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let Inst{5-0} = 0x3b;
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}
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class ABS_FM_MM<bits<2> fmt, bits<7> funct> : MMArch {
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bits<5> fd;
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bits<5> fs;
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bits<32> Inst;
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let Inst{31-26} = 0x15;
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let Inst{25-21} = fd;
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let Inst{20-16} = fs;
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let Inst{15} = 0;
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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;
|
|
}
|