| // Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. |
| // Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net) |
| // Portions Copyright © 1997-1999 Vita Nuova Limited |
| // Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com) |
| // Portions Copyright © 2004,2006 Bruce Ellis |
| // Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net) |
| // Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others |
| // Portions Copyright © 2009 The Go Authors. All rights reserved. |
| // Portions Copyright © 2019 The Go Authors. All rights reserved. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a copy |
| // of this software and associated documentation files (the "Software"), to deal |
| // in the Software without restriction, including without limitation the rights |
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| // copies of the Software, and to permit persons to whom the Software is |
| // furnished to do so, subject to the following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included in |
| // all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| // THE SOFTWARE. |
| |
| package riscv |
| |
| import "cmd/internal/obj" |
| |
| //go:generate go run ../stringer.go -i $GOFILE -o anames.go -p riscv |
| |
| const ( |
| // Base register numberings. |
| REG_X0 = obj.RBaseRISCV + iota |
| REG_X1 |
| REG_X2 |
| REG_X3 |
| REG_X4 |
| REG_X5 |
| REG_X6 |
| REG_X7 |
| REG_X8 |
| REG_X9 |
| REG_X10 |
| REG_X11 |
| REG_X12 |
| REG_X13 |
| REG_X14 |
| REG_X15 |
| REG_X16 |
| REG_X17 |
| REG_X18 |
| REG_X19 |
| REG_X20 |
| REG_X21 |
| REG_X22 |
| REG_X23 |
| REG_X24 |
| REG_X25 |
| REG_X26 |
| REG_X27 |
| REG_X28 |
| REG_X29 |
| REG_X30 |
| REG_X31 |
| |
| // FP register numberings. |
| REG_F0 |
| REG_F1 |
| REG_F2 |
| REG_F3 |
| REG_F4 |
| REG_F5 |
| REG_F6 |
| REG_F7 |
| REG_F8 |
| REG_F9 |
| REG_F10 |
| REG_F11 |
| REG_F12 |
| REG_F13 |
| REG_F14 |
| REG_F15 |
| REG_F16 |
| REG_F17 |
| REG_F18 |
| REG_F19 |
| REG_F20 |
| REG_F21 |
| REG_F22 |
| REG_F23 |
| REG_F24 |
| REG_F25 |
| REG_F26 |
| REG_F27 |
| REG_F28 |
| REG_F29 |
| REG_F30 |
| REG_F31 |
| |
| // This marks the end of the register numbering. |
| REG_END |
| |
| // General registers reassigned to ABI names. |
| REG_ZERO = REG_X0 |
| REG_RA = REG_X1 |
| REG_SP = REG_X2 |
| REG_GP = REG_X3 // aka REG_SB |
| REG_TP = REG_X4 // aka REG_G |
| REG_T0 = REG_X5 |
| REG_T1 = REG_X6 |
| REG_T2 = REG_X7 |
| REG_S0 = REG_X8 |
| REG_S1 = REG_X9 |
| REG_A0 = REG_X10 |
| REG_A1 = REG_X11 |
| REG_A2 = REG_X12 |
| REG_A3 = REG_X13 |
| REG_A4 = REG_X14 |
| REG_A5 = REG_X15 |
| REG_A6 = REG_X16 |
| REG_A7 = REG_X17 |
| REG_S2 = REG_X18 |
| REG_S3 = REG_X19 |
| REG_S4 = REG_X20 |
| REG_S5 = REG_X21 |
| REG_S6 = REG_X22 |
| REG_S7 = REG_X23 |
| REG_S8 = REG_X24 |
| REG_S9 = REG_X25 |
| REG_S10 = REG_X26 |
| REG_S11 = REG_X27 |
| REG_T3 = REG_X28 |
| REG_T4 = REG_X29 |
| REG_T5 = REG_X30 |
| REG_T6 = REG_X31 |
| |
| // Go runtime register names. |
| REG_G = REG_TP // G pointer. |
| REG_CTXT = REG_S4 // Context for closures. |
| REG_TMP = REG_T6 // Reserved for assembler use. |
| |
| // ABI names for floating point registers. |
| REG_FT0 = REG_F0 |
| REG_FT1 = REG_F1 |
| REG_FT2 = REG_F2 |
| REG_FT3 = REG_F3 |
| REG_FT4 = REG_F4 |
| REG_FT5 = REG_F5 |
| REG_FT6 = REG_F6 |
| REG_FT7 = REG_F7 |
| REG_FS0 = REG_F8 |
| REG_FS1 = REG_F9 |
| REG_FA0 = REG_F10 |
| REG_FA1 = REG_F11 |
| REG_FA2 = REG_F12 |
| REG_FA3 = REG_F13 |
| REG_FA4 = REG_F14 |
| REG_FA5 = REG_F15 |
| REG_FA6 = REG_F16 |
| REG_FA7 = REG_F17 |
| REG_FS2 = REG_F18 |
| REG_FS3 = REG_F19 |
| REG_FS4 = REG_F20 |
| REG_FS5 = REG_F21 |
| REG_FS6 = REG_F22 |
| REG_FS7 = REG_F23 |
| REG_FS8 = REG_F24 |
| REG_FS9 = REG_F25 |
| REG_FS10 = REG_F26 |
| REG_FS11 = REG_F27 |
| REG_FT8 = REG_F28 |
| REG_FT9 = REG_F29 |
| REG_FT10 = REG_F30 |
| REG_FT11 = REG_F31 |
| |
| // Names generated by the SSA compiler. |
| REGSP = REG_SP |
| REGG = REG_G |
| ) |
| |
| // Prog.Mark flags. |
| const ( |
| // NEED_PCREL_ITYPE_RELOC is set on AUIPC instructions to indicate that |
| // it is the first instruction in an AUIPC + I-type pair that needs a |
| // R_RISCV_PCREL_ITYPE relocation. |
| NEED_PCREL_ITYPE_RELOC = 1 << 0 |
| |
| // NEED_PCREL_STYPE_RELOC is set on AUIPC instructions to indicate that |
| // it is the first instruction in an AUIPC + S-type pair that needs a |
| // R_RISCV_PCREL_STYPE relocation. |
| NEED_PCREL_STYPE_RELOC = 1 << 1 |
| ) |
| |
| // RISC-V mnemonics, as defined in the "opcodes" and "opcodes-pseudo" files |
| // from: |
| // |
| // https://github.com/riscv/riscv-opcodes |
| // |
| // As well as some pseudo-mnemonics (e.g. MOV) used only in the assembler. |
| // |
| // See also "The RISC-V Instruction Set Manual" at: |
| // |
| // https://riscv.org/specifications/ |
| // |
| // If you modify this table, you MUST run 'go generate' to regenerate anames.go! |
| const ( |
| // Unprivileged ISA (Document Version 20190608-Base-Ratified) |
| |
| // 2.4: Integer Computational Instructions |
| AADDI = obj.ABaseRISCV + obj.A_ARCHSPECIFIC + iota |
| ASLTI |
| ASLTIU |
| AANDI |
| AORI |
| AXORI |
| ASLLI |
| ASRLI |
| ASRAI |
| ALUI |
| AAUIPC |
| AADD |
| ASLT |
| ASLTU |
| AAND |
| AOR |
| AXOR |
| ASLL |
| ASRL |
| ASUB |
| ASRA |
| |
| // The SLL/SRL/SRA instructions differ slightly between RV32 and RV64, |
| // hence there are pseudo-opcodes for the RV32 specific versions. |
| ASLLIRV32 |
| ASRLIRV32 |
| ASRAIRV32 |
| |
| // 2.5: Control Transfer Instructions |
| AJAL |
| AJALR |
| ABEQ |
| ABNE |
| ABLT |
| ABLTU |
| ABGE |
| ABGEU |
| |
| // 2.6: Load and Store Instructions |
| ALW |
| ALWU |
| ALH |
| ALHU |
| ALB |
| ALBU |
| ASW |
| ASH |
| ASB |
| |
| // 2.7: Memory Ordering Instructions |
| AFENCE |
| AFENCEI |
| AFENCETSO |
| |
| // 5.2: Integer Computational Instructions (RV64I) |
| AADDIW |
| ASLLIW |
| ASRLIW |
| ASRAIW |
| AADDW |
| ASLLW |
| ASRLW |
| ASUBW |
| ASRAW |
| |
| // 5.3: Load and Store Instructions (RV64I) |
| ALD |
| ASD |
| |
| // 7.1: Multiplication Operations |
| AMUL |
| AMULH |
| AMULHU |
| AMULHSU |
| AMULW |
| ADIV |
| ADIVU |
| AREM |
| AREMU |
| ADIVW |
| ADIVUW |
| AREMW |
| AREMUW |
| |
| // 8.2: Load-Reserved/Store-Conditional Instructions |
| ALRD |
| ASCD |
| ALRW |
| ASCW |
| |
| // 8.3: Atomic Memory Operations |
| AAMOSWAPD |
| AAMOADDD |
| AAMOANDD |
| AAMOORD |
| AAMOXORD |
| AAMOMAXD |
| AAMOMAXUD |
| AAMOMIND |
| AAMOMINUD |
| AAMOSWAPW |
| AAMOADDW |
| AAMOANDW |
| AAMOORW |
| AAMOXORW |
| AAMOMAXW |
| AAMOMAXUW |
| AAMOMINW |
| AAMOMINUW |
| |
| // 10.1: Base Counters and Timers |
| ARDCYCLE |
| ARDCYCLEH |
| ARDTIME |
| ARDTIMEH |
| ARDINSTRET |
| ARDINSTRETH |
| |
| // 11.2: Floating-Point Control and Status Register |
| AFRCSR |
| AFSCSR |
| AFRRM |
| AFSRM |
| AFRFLAGS |
| AFSFLAGS |
| AFSRMI |
| AFSFLAGSI |
| |
| // 11.5: Single-Precision Load and Store Instructions |
| AFLW |
| AFSW |
| |
| // 11.6: Single-Precision Floating-Point Computational Instructions |
| AFADDS |
| AFSUBS |
| AFMULS |
| AFDIVS |
| AFMINS |
| AFMAXS |
| AFSQRTS |
| AFMADDS |
| AFMSUBS |
| AFNMADDS |
| AFNMSUBS |
| |
| // 11.7: Single-Precision Floating-Point Conversion and Move Instructions |
| AFCVTWS |
| AFCVTLS |
| AFCVTSW |
| AFCVTSL |
| AFCVTWUS |
| AFCVTLUS |
| AFCVTSWU |
| AFCVTSLU |
| AFSGNJS |
| AFSGNJNS |
| AFSGNJXS |
| AFMVSX |
| AFMVXS |
| AFMVWX |
| AFMVXW |
| |
| // 11.8: Single-Precision Floating-Point Compare Instructions |
| AFEQS |
| AFLTS |
| AFLES |
| |
| // 11.9: Single-Precision Floating-Point Classify Instruction |
| AFCLASSS |
| |
| // 12.3: Double-Precision Load and Store Instructions |
| AFLD |
| AFSD |
| |
| // 12.4: Double-Precision Floating-Point Computational Instructions |
| AFADDD |
| AFSUBD |
| AFMULD |
| AFDIVD |
| AFMIND |
| AFMAXD |
| AFSQRTD |
| AFMADDD |
| AFMSUBD |
| AFNMADDD |
| AFNMSUBD |
| |
| // 12.5: Double-Precision Floating-Point Conversion and Move Instructions |
| AFCVTWD |
| AFCVTLD |
| AFCVTDW |
| AFCVTDL |
| AFCVTWUD |
| AFCVTLUD |
| AFCVTDWU |
| AFCVTDLU |
| AFCVTSD |
| AFCVTDS |
| AFSGNJD |
| AFSGNJND |
| AFSGNJXD |
| AFMVXD |
| AFMVDX |
| |
| // 12.6: Double-Precision Floating-Point Compare Instructions |
| AFEQD |
| AFLTD |
| AFLED |
| |
| // 12.7: Double-Precision Floating-Point Classify Instruction |
| AFCLASSD |
| |
| // 13.1 Quad-Precision Load and Store Instructions |
| AFLQ |
| AFSQ |
| |
| // 13.2: Quad-Precision Computational Instructions |
| AFADDQ |
| AFSUBQ |
| AFMULQ |
| AFDIVQ |
| AFMINQ |
| AFMAXQ |
| AFSQRTQ |
| AFMADDQ |
| AFMSUBQ |
| AFNMADDQ |
| AFNMSUBQ |
| |
| // 13.3 Quad-Precision Convert and Move Instructions |
| AFCVTWQ |
| AFCVTLQ |
| AFCVTSQ |
| AFCVTDQ |
| AFCVTQW |
| AFCVTQL |
| AFCVTQS |
| AFCVTQD |
| AFCVTWUQ |
| AFCVTLUQ |
| AFCVTQWU |
| AFCVTQLU |
| AFSGNJQ |
| AFSGNJNQ |
| AFSGNJXQ |
| AFMVXQ |
| AFMVQX |
| |
| // 13.4 Quad-Precision Floating-Point Compare Instructions |
| AFEQQ |
| AFLEQ |
| AFLTQ |
| |
| // 13.5 Quad-Precision Floating-Point Classify Instruction |
| AFCLASSQ |
| |
| // Privileged ISA (Version 20190608-Priv-MSU-Ratified) |
| |
| // 3.1.9: Instructions to Access CSRs |
| ACSRRW |
| ACSRRS |
| ACSRRC |
| ACSRRWI |
| ACSRRSI |
| ACSRRCI |
| |
| // 3.2.1: Environment Call and Breakpoint |
| AECALL |
| ASCALL |
| AEBREAK |
| ASBREAK |
| |
| // 3.2.2: Trap-Return Instructions |
| AMRET |
| ASRET |
| AURET |
| ADRET |
| |
| // 3.2.3: Wait for Interrupt |
| AWFI |
| |
| // 4.2.1: Supervisor Memory-Management Fence Instruction |
| ASFENCEVMA |
| |
| // Hypervisor Memory-Management Instructions |
| AHFENCEGVMA |
| AHFENCEVVMA |
| |
| // The escape hatch. Inserts a single 32-bit word. |
| AWORD |
| |
| // Pseudo-instructions. These get translated by the assembler into other |
| // instructions, based on their operands. |
| AFNEGD |
| AFNEGS |
| AFNED |
| AFNES |
| AMOV |
| AMOVB |
| AMOVBU |
| AMOVF |
| AMOVD |
| AMOVH |
| AMOVHU |
| AMOVW |
| AMOVWU |
| ASEQZ |
| ASNEZ |
| ) |
| |
| // All unary instructions which write to their arguments (as opposed to reading |
| // from them) go here. The assembly parser uses this information to populate |
| // its AST in a semantically reasonable way. |
| // |
| // Any instructions not listed here are assumed to either be non-unary or to read |
| // from its argument. |
| var unaryDst = map[obj.As]bool{ |
| ARDCYCLE: true, |
| ARDCYCLEH: true, |
| ARDTIME: true, |
| ARDTIMEH: true, |
| ARDINSTRET: true, |
| ARDINSTRETH: true, |
| } |
| |
| // Instruction encoding masks. |
| const ( |
| // ITypeImmMask is a mask including only the immediate portion of |
| // I-type instructions. |
| ITypeImmMask = 0xfff00000 |
| |
| // STypeImmMask is a mask including only the immediate portion of |
| // S-type instructions. |
| STypeImmMask = 0xfe000f80 |
| |
| // UTypeImmMask is a mask including only the immediate portion of |
| // U-type instructions. |
| UTypeImmMask = 0xfffff000 |
| |
| // UJTypeImmMask is a mask including only the immediate portion of |
| // UJ-type instructions. |
| UJTypeImmMask = UTypeImmMask |
| ) |
