# # RISC-V translation routines for the RVXI Base Integer Instruction Set. # # Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de # Bastian Koppelmann, kbastian@mail.uni-paderborn.de # # This program is free software; you can redistribute it and/or modify it # under the terms and conditions of the GNU General Public License, # version 2 or later, as published by the Free Software Foundation. # # This program is distributed in the hope it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for # more details. # # You should have received a copy of the GNU General Public License along with # this program. If not, see . # Fields: %rd 7:5 %rs1_3 7:3 !function=ex_rvc_register %rs2_3 2:3 !function=ex_rvc_register %rs2_5 2:5 %r1s 7:3 !function=ex_sreg_register %r2s 2:3 !function=ex_sreg_register # Immediates: %imm_ci 12:s1 2:5 %nzuimm_ciw 7:4 11:2 5:1 6:1 !function=ex_shift_2 %uimm_cl_q 10:1 5:2 11:2 !function=ex_shift_4 %uimm_cl_d 5:2 10:3 !function=ex_shift_3 %uimm_cl_w 5:1 10:3 6:1 !function=ex_shift_2 %imm_cb 12:s1 5:2 2:1 10:2 3:2 !function=ex_shift_1 %imm_cj 12:s1 8:1 9:2 6:1 7:1 2:1 11:1 3:3 !function=ex_shift_1 %shlimm_6bit 12:1 2:5 !function=ex_rvc_shiftli %shrimm_6bit 12:1 2:5 !function=ex_rvc_shiftri %uimm_6bit_lq 2:4 12:1 6:1 !function=ex_shift_4 %uimm_6bit_ld 2:3 12:1 5:2 !function=ex_shift_3 %uimm_6bit_lw 2:2 12:1 4:3 !function=ex_shift_2 %uimm_6bit_sq 7:4 11:2 !function=ex_shift_4 %uimm_6bit_sd 7:3 10:3 !function=ex_shift_3 %uimm_6bit_sw 7:2 9:4 !function=ex_shift_2 %imm_addi16sp 12:s1 3:2 5:1 2:1 6:1 !function=ex_shift_4 %imm_lui 12:s1 2:5 !function=ex_shift_12 %uimm_cl_b 5:1 6:1 %uimm_cl_h 5:1 !function=ex_shift_1 %spimm 2:2 !function=ex_shift_4 %urlist 4:4 %index 2:8 # Argument sets imported from insn32.decode: &empty !extern &r rd rs1 rs2 !extern &i imm rs1 rd !extern &s imm rs1 rs2 !extern &j imm rd !extern &b imm rs2 rs1 !extern &u imm rd !extern &shift shamt rs1 rd !extern &r2 rd rs1 !extern &r2_s rs1 rs2 !extern &cmpp urlist spimm &cmjt index # Formats 16: @cr .... ..... ..... .. &r rs2=%rs2_5 rs1=%rd %rd @ci ... . ..... ..... .. &i imm=%imm_ci rs1=%rd %rd @cl_q ... . ..... ..... .. &i imm=%uimm_cl_q rs1=%rs1_3 rd=%rs2_3 @cl_d ... ... ... .. ... .. &i imm=%uimm_cl_d rs1=%rs1_3 rd=%rs2_3 @cl_w ... ... ... .. ... .. &i imm=%uimm_cl_w rs1=%rs1_3 rd=%rs2_3 @cs_2 ... ... ... .. ... .. &r rs2=%rs2_3 rs1=%rs1_3 rd=%rs1_3 @cs_q ... ... ... .. ... .. &s imm=%uimm_cl_q rs1=%rs1_3 rs2=%rs2_3 @cs_d ... ... ... .. ... .. &s imm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3 @cs_w ... ... ... .. ... .. &s imm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3 @cj ... ........... .. &j imm=%imm_cj @cb_z ... ... ... .. ... .. &b imm=%imm_cb rs1=%rs1_3 rs2=0 @c_lqsp ... . ..... ..... .. &i imm=%uimm_6bit_lq rs1=2 %rd @c_ldsp ... . ..... ..... .. &i imm=%uimm_6bit_ld rs1=2 %rd @c_lwsp ... . ..... ..... .. &i imm=%uimm_6bit_lw rs1=2 %rd @c_sqsp ... . ..... ..... .. &s imm=%uimm_6bit_sq rs1=2 rs2=%rs2_5 @c_sdsp ... . ..... ..... .. &s imm=%uimm_6bit_sd rs1=2 rs2=%rs2_5 @c_swsp ... . ..... ..... .. &s imm=%uimm_6bit_sw rs1=2 rs2=%rs2_5 @c_li ... . ..... ..... .. &i imm=%imm_ci rs1=0 %rd @c_lui ... . ..... ..... .. &u imm=%imm_lui %rd @c_jalr ... . ..... ..... .. &i imm=0 rs1=%rd @c_mv ... . ..... ..... .. &i imm=0 rs1=%rs2_5 %rd @c_addi4spn ... . ..... ..... .. &i imm=%nzuimm_ciw rs1=2 rd=%rs2_3 @c_addi16sp ... . ..... ..... .. &i imm=%imm_addi16sp rs1=2 rd=2 @c_shift ... . .. ... ..... .. \ &shift rd=%rs1_3 rs1=%rs1_3 shamt=%shrimm_6bit @c_shift2 ... . .. ... ..... .. \ &shift rd=%rd rs1=%rd shamt=%shlimm_6bit @c_andi ... . .. ... ..... .. &i imm=%imm_ci rs1=%rs1_3 rd=%rs1_3 @cu ... ... ... .. ... .. &r2 rs1=%rs1_3 rd=%rs1_3 @cl_b ... . .. ... .. ... .. &i imm=%uimm_cl_b rs1=%rs1_3 rd=%rs2_3 @cl_h ... . .. ... .. ... .. &i imm=%uimm_cl_h rs1=%rs1_3 rd=%rs2_3 @cs_b ... . .. ... .. ... .. &s imm=%uimm_cl_b rs1=%rs1_3 rs2=%rs2_3 @cs_h ... . .. ... .. ... .. &s imm=%uimm_cl_h rs1=%rs1_3 rs2=%rs2_3 @cm_pp ... ... ........ .. &cmpp %urlist %spimm @cm_mv ... ... ... .. ... .. &r2_s rs2=%r2s rs1=%r1s @cm_jt ... ... ........ .. &cmjt %index # *** RV32/64C Standard Extension (Quadrant 0) *** { # Opcode of all zeros is illegal; rd != 0, nzuimm == 0 is reserved. illegal 000 000 000 00 --- 00 addi 000 ... ... .. ... 00 @c_addi4spn } { lq 001 ... ... .. ... 00 @cl_q c_fld 001 ... ... .. ... 00 @cl_d } lw 010 ... ... .. ... 00 @cl_w { sq 101 ... ... .. ... 00 @cs_q c_fsd 101 ... ... .. ... 00 @cs_d } sw 110 ... ... .. ... 00 @cs_w # *** RV32C and RV64C specific Standard Extension (Quadrant 0) *** { ld 011 ... ... .. ... 00 @cl_d c_flw 011 ... ... .. ... 00 @cl_w } { sd 111 ... ... .. ... 00 @cs_d c_fsw 111 ... ... .. ... 00 @cs_w } # *** RV32/64C Standard Extension (Quadrant 1) *** addi 000 . ..... ..... 01 @ci addi 010 . ..... ..... 01 @c_li { # c.sspush x1 carving out of zcmops sspush 011 0 00001 00000 01 &r2_s rs2=1 rs1=0 # c.sspopchk x5 carving out of zcmops sspopchk 011 0 00101 00000 01 &r2 rs1=5 rd=0 c_mop_n 011 0 0 n:3 1 00000 01 illegal 011 0 ----- 00000 01 # c.addi16sp and c.lui, RES nzimm=0 addi 011 . 00010 ..... 01 @c_addi16sp lui 011 . ..... ..... 01 @c_lui } srli 100 . 00 ... ..... 01 @c_shift srai 100 . 01 ... ..... 01 @c_shift andi 100 . 10 ... ..... 01 @c_andi sub 100 0 11 ... 00 ... 01 @cs_2 xor 100 0 11 ... 01 ... 01 @cs_2 or 100 0 11 ... 10 ... 01 @cs_2 and 100 0 11 ... 11 ... 01 @cs_2 jal 101 ........... 01 @cj rd=0 # C.J beq 110 ... ... ..... 01 @cb_z bne 111 ... ... ..... 01 @cb_z # *** RV64C and RV32C specific Standard Extension (Quadrant 1) *** { c64_illegal 001 - 00000 ----- 01 # c.addiw, RES rd=0 addiw 001 . ..... ..... 01 @ci jal 001 ........... 01 @cj rd=1 # C.JAL } subw 100 1 11 ... 00 ... 01 @cs_2 addw 100 1 11 ... 01 ... 01 @cs_2 # *** RV32/64C Standard Extension (Quadrant 2) *** slli 000 . ..... ..... 10 @c_shift2 { lq 001 ... ... .. ... 10 @c_lqsp c_fld 001 . ..... ..... 10 @c_ldsp } { illegal 010 - 00000 ----- 10 # c.lwsp, RES rd=0 lw 010 . ..... ..... 10 @c_lwsp } { illegal 100 0 00000 00000 10 # c.jr, RES rs1=0 jalr 100 0 ..... 00000 10 @c_jalr rd=0 # C.JR addi 100 0 ..... ..... 10 @c_mv } { ebreak 100 1 00000 00000 10 jalr 100 1 ..... 00000 10 @c_jalr rd=1 # C.JALR add 100 1 ..... ..... 10 @cr } { sq 101 ... ... .. ... 10 @c_sqsp c_fsd 101 ...... ..... 10 @c_sdsp # *** RV64 and RV32 Zcmp/Zcmt Extension *** [ cm_push 101 11000 .... .. 10 @cm_pp cm_pop 101 11010 .... .. 10 @cm_pp cm_popret 101 11110 .... .. 10 @cm_pp cm_popretz 101 11100 .... .. 10 @cm_pp cm_mva01s 101 011 ... 11 ... 10 @cm_mv cm_mvsa01 101 011 ... 01 ... 10 @cm_mv cm_jalt 101 000 ........ 10 @cm_jt ] } sw 110 . ..... ..... 10 @c_swsp # *** RV32C and RV64C specific Standard Extension (Quadrant 2) *** { c64_illegal 011 - 00000 ----- 10 # c.ldsp, RES rd=0 ld 011 . ..... ..... 10 @c_ldsp c_flw 011 . ..... ..... 10 @c_lwsp } { sd 111 . ..... ..... 10 @c_sdsp c_fsw 111 . ..... ..... 10 @c_swsp } # *** RV64 and RV32 Zcb Extension *** c_zext_b 100 111 ... 11 000 01 @cu c_sext_b 100 111 ... 11 001 01 @cu c_zext_h 100 111 ... 11 010 01 @cu c_sext_h 100 111 ... 11 011 01 @cu c_zext_w 100 111 ... 11 100 01 @cu c_not 100 111 ... 11 101 01 @cu c_mul 100 111 ... 10 ... 01 @cs_2 c_lbu 100 000 ... .. ... 00 @cl_b c_lhu 100 001 ... 0. ... 00 @cl_h c_lh 100 001 ... 1. ... 00 @cl_h c_sb 100 010 ... .. ... 00 @cs_b c_sh 100 011 ... 0. ... 00 @cs_h