From b0a101c53a1caa3f2a9fc2032f703ca4465cfbbb Mon Sep 17 00:00:00 2001 From: Jiawei Date: Wed, 12 Jul 2023 20:40:36 +0800 Subject: RISC-V: Supports Zcb extension. This patch support Zcb extension, contains new compressed instructions, some instructions depend on other existed extension, like 'zba', 'zbb' and 'zmmul'. Zcb also imply Zca extension to enable the compressing features. Co-Authored by: Charlie Keaney Co-Authored by: Mary Bennett Co-Authored by: Nandni Jamnadas Co-Authored by: Sinan Lin Co-Authored by: Simon Cook Co-Authored by: Shihua Liao Co-Authored by: Yulong Shi bfd/ChangeLog: * elfxx-riscv.c (riscv_multi_subset_supports): New extension. (riscv_multi_subset_supports_ext): Ditto. gas/ChangeLog: * config/tc-riscv.c (validate_riscv_insn): New operators. (riscv_ip): Ditto. * testsuite/gas/riscv/zcb.d: New test. * testsuite/gas/riscv/zcb.s: New test. include/ChangeLog: * opcode/riscv-opc.h (MATCH_C_LBU): New opcode. (MASK_C_LBU): New mask. (MATCH_C_LHU): New opcode. (MASK_C_LHU): New mask. (MATCH_C_LH): New opcode. (MASK_C_LH): New mask. (MATCH_C_SB): New opcode. (MASK_C_SB): New mask. (MATCH_C_SH): New opcode. (MASK_C_SH): New mask. (MATCH_C_ZEXT_B): New opcode. (MASK_C_ZEXT_B): New mask. (MATCH_C_SEXT_B): New opcode. (MASK_C_SEXT_B): New mask. (MATCH_C_ZEXT_H): New opcode. (MASK_C_ZEXT_H): New mask. (MATCH_C_SEXT_H): New opcode. (MASK_C_SEXT_H): New mask. (MATCH_C_ZEXT_W): New opcode. (MASK_C_ZEXT_W): New mask. (MATCH_C_NOT): New opcode. (MASK_C_NOT): New mask. (MATCH_C_MUL): New opcode. (MASK_C_MUL): New mask. (DECLARE_INSN): New opcode. * opcode/riscv.h (EXTRACT_ZCB_BYTE_UIMM): New inline func. (EXTRACT_ZCB_HALFWORD_UIMM): Ditto. (ENCODE_ZCB_BYTE_UIMM): Ditto. (ENCODE_ZCB_HALFWORD_UIMM): Ditto. (VALID_ZCB_BYTE_UIMM): Ditto. (VALID_ZCB_HALFWORD_UIMM): Ditto. (enum riscv_insn_class): New extension class. opcodes/ChangeLog: * riscv-dis.c (print_insn_args): New operators. * riscv-opc.c: New instructions. --- opcodes/riscv-dis.c | 14 ++++++++++++++ opcodes/riscv-opc.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) (limited to 'opcodes') diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c index 827d9b6..2826248 100644 --- a/opcodes/riscv-dis.c +++ b/opcodes/riscv-dis.c @@ -614,6 +614,20 @@ print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info goto undefined_modifier; } break; + case 'c': /* Zcb extension 16 bits length instruction fields. */ + switch (*++oparg) + { + case 'b': + print (info->stream, dis_style_immediate, "%d", + (int)EXTRACT_ZCB_BYTE_UIMM (l)); + break; + case 'h': + print (info->stream, dis_style_immediate, "%d", + (int)EXTRACT_ZCB_HALFWORD_UIMM (l)); + break; + default: break; + } + break; default: goto undefined_modifier; } diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c index 533e3f4..6a85473 100644 --- a/opcodes/riscv-opc.c +++ b/opcodes/riscv-opc.c @@ -380,12 +380,14 @@ const struct riscv_opcode riscv_opcodes[] = {"mv", 0, INSN_CLASS_I, "d,s", MATCH_ADDI, MASK_ADDI|MASK_IMM, match_opcode, INSN_ALIAS }, {"move", 0, INSN_CLASS_C, "d,CV", MATCH_C_MV, MASK_C_MV, match_c_add, INSN_ALIAS }, {"move", 0, INSN_CLASS_I, "d,s", MATCH_ADDI, MASK_ADDI|MASK_IMM, match_opcode, INSN_ALIAS }, +{"zext.b", 0, INSN_CLASS_ZCB, "Cs,Cw", MATCH_C_ZEXT_B, MASK_C_ZEXT_B, match_opcode, INSN_ALIAS }, {"zext.b", 0, INSN_CLASS_I, "d,s", MATCH_ANDI|ENCODE_ITYPE_IMM (255), MASK_ANDI | MASK_IMM, match_opcode, INSN_ALIAS }, {"and", 0, INSN_CLASS_C, "Cs,Cw,Ct", MATCH_C_AND, MASK_C_AND, match_opcode, INSN_ALIAS }, {"and", 0, INSN_CLASS_C, "Cs,Ct,Cw", MATCH_C_AND, MASK_C_AND, match_opcode, INSN_ALIAS }, {"and", 0, INSN_CLASS_C, "Cs,Cw,Co", MATCH_C_ANDI, MASK_C_ANDI, match_opcode, INSN_ALIAS }, {"and", 0, INSN_CLASS_I, "d,s,t", MATCH_AND, MASK_AND, match_opcode, 0 }, {"and", 0, INSN_CLASS_I, "d,s,j", MATCH_ANDI, MASK_ANDI, match_opcode, INSN_ALIAS }, +{"andi", 0, INSN_CLASS_ZCB, "Cs,Cw,Wcf",MATCH_C_ZEXT_B, MASK_C_ZEXT_B, match_opcode, INSN_ALIAS }, {"andi", 0, INSN_CLASS_C, "Cs,Cw,Co", MATCH_C_ANDI, MASK_C_ANDI, match_opcode, INSN_ALIAS }, {"andi", 0, INSN_CLASS_I, "d,s,j", MATCH_ANDI, MASK_ANDI, match_opcode, 0 }, {"beqz", 0, INSN_CLASS_C, "Cs,Cp", MATCH_C_BEQZ, MASK_C_BEQZ, match_opcode, INSN_ALIAS|INSN_CONDBRANCH }, @@ -449,16 +451,20 @@ const struct riscv_opcode riscv_opcodes[] = {"sub", 0, INSN_CLASS_I, "d,s,t", MATCH_SUB, MASK_SUB, match_opcode, 0 }, {"lb", 0, INSN_CLASS_I, "d,o(s)", MATCH_LB, MASK_LB, match_opcode, INSN_DREF|INSN_1_BYTE }, {"lb", 0, INSN_CLASS_I, "d,A", 0, (int) M_LB, match_never, INSN_MACRO }, +{"lbu", 0, INSN_CLASS_ZCB, "Ct,Wcb(Cs)", MATCH_C_LBU, MASK_C_LBU, match_opcode, INSN_ALIAS|INSN_DREF|INSN_1_BYTE }, {"lbu", 0, INSN_CLASS_I, "d,o(s)", MATCH_LBU, MASK_LBU, match_opcode, INSN_DREF|INSN_1_BYTE }, {"lbu", 0, INSN_CLASS_I, "d,A", 0, (int) M_LBU, match_never, INSN_MACRO }, +{"lh", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_LH, MASK_C_LH, match_opcode, INSN_ALIAS|INSN_DREF|INSN_2_BYTE }, {"lh", 0, INSN_CLASS_I, "d,o(s)", MATCH_LH, MASK_LH, match_opcode, INSN_DREF|INSN_2_BYTE }, {"lh", 0, INSN_CLASS_I, "d,A", 0, (int) M_LH, match_never, INSN_MACRO }, +{"lhu", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_LHU, MASK_C_LHU, match_opcode, INSN_ALIAS|INSN_DREF|INSN_2_BYTE }, {"lhu", 0, INSN_CLASS_I, "d,o(s)", MATCH_LHU, MASK_LHU, match_opcode, INSN_DREF|INSN_2_BYTE }, {"lhu", 0, INSN_CLASS_I, "d,A", 0, (int) M_LHU, match_never, INSN_MACRO }, {"lw", 0, INSN_CLASS_C, "d,Cm(Cc)", MATCH_C_LWSP, MASK_C_LWSP, match_rd_nonzero, INSN_ALIAS|INSN_DREF|INSN_4_BYTE }, {"lw", 0, INSN_CLASS_C, "Ct,Ck(Cs)", MATCH_C_LW, MASK_C_LW, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE }, {"lw", 0, INSN_CLASS_I, "d,o(s)", MATCH_LW, MASK_LW, match_opcode, INSN_DREF|INSN_4_BYTE }, {"lw", 0, INSN_CLASS_I, "d,A", 0, (int) M_LW, match_never, INSN_MACRO }, +{"not", 0, INSN_CLASS_ZCB, "Cs,Cw", MATCH_C_NOT, MASK_C_NOT, match_opcode, INSN_ALIAS }, {"not", 0, INSN_CLASS_I, "d,s", MATCH_XORI|MASK_IMM, MASK_XORI|MASK_IMM, match_opcode, INSN_ALIAS }, {"or", 0, INSN_CLASS_I, "d,s,j", MATCH_ORI, MASK_ORI, match_opcode, INSN_ALIAS }, {"or", 0, INSN_CLASS_C, "Cs,Cw,Ct", MATCH_C_OR, MASK_C_OR, match_opcode, INSN_ALIAS }, @@ -478,8 +484,10 @@ const struct riscv_opcode riscv_opcodes[] = {"sltu", 0, INSN_CLASS_I, "d,s,j", MATCH_SLTIU, MASK_SLTIU, match_opcode, INSN_ALIAS }, {"sgt", 0, INSN_CLASS_I, "d,t,s", MATCH_SLT, MASK_SLT, match_opcode, INSN_ALIAS }, {"sgtu", 0, INSN_CLASS_I, "d,t,s", MATCH_SLTU, MASK_SLTU, match_opcode, INSN_ALIAS }, +{"sb", 0, INSN_CLASS_ZCB, "Ct,Wcb(Cs)", MATCH_C_SB, MASK_C_SB, match_opcode, INSN_DREF|INSN_1_BYTE|INSN_ALIAS }, {"sb", 0, INSN_CLASS_I, "t,q(s)", MATCH_SB, MASK_SB, match_opcode, INSN_DREF|INSN_1_BYTE }, {"sb", 0, INSN_CLASS_I, "t,A,s", 0, (int) M_SB, match_never, INSN_MACRO }, +{"sh", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_SH, MASK_C_SH, match_opcode, INSN_DREF|INSN_2_BYTE|INSN_ALIAS }, {"sh", 0, INSN_CLASS_I, "t,q(s)", MATCH_SH, MASK_SH, match_opcode, INSN_DREF|INSN_2_BYTE }, {"sh", 0, INSN_CLASS_I, "t,A,s", 0, (int) M_SH, match_never, INSN_MACRO }, {"sw", 0, INSN_CLASS_C, "CV,CM(Cc)", MATCH_C_SWSP, MASK_C_SWSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE }, @@ -626,6 +634,7 @@ const struct riscv_opcode riscv_opcodes[] = {"amominu.d.aqrl", 64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_D|MASK_AQRL, MASK_AMOMINU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE }, /* Multiply/Divide instruction subset. */ +{"mul", 0, INSN_CLASS_ZCB_AND_ZMMUL, "Cs,Cw,Ct", MATCH_C_MUL, MASK_C_MUL, match_opcode, INSN_ALIAS }, {"mul", 0, INSN_CLASS_ZMMUL, "d,s,t", MATCH_MUL, MASK_MUL, match_opcode, 0 }, {"mulh", 0, INSN_CLASS_ZMMUL, "d,s,t", MATCH_MULH, MASK_MULH, match_opcode, 0 }, {"mulhu", 0, INSN_CLASS_ZMMUL, "d,s,t", MATCH_MULHU, MASK_MULHU, match_opcode, 0 }, @@ -1016,10 +1025,13 @@ const struct riscv_opcode riscv_opcodes[] = {"max", 0, INSN_CLASS_ZBB, "d,s,t", MATCH_MAX, MASK_MAX, match_opcode, 0 }, {"minu", 0, INSN_CLASS_ZBB, "d,s,t", MATCH_MINU, MASK_MINU, match_opcode, 0 }, {"maxu", 0, INSN_CLASS_ZBB, "d,s,t", MATCH_MAXU, MASK_MAXU, match_opcode, 0 }, +{"sext.b", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs,Cw", MATCH_C_SEXT_B, MASK_C_SEXT_B, match_opcode, INSN_ALIAS }, {"sext.b", 0, INSN_CLASS_ZBB, "d,s", MATCH_SEXT_B, MASK_SEXT_B, match_opcode, 0 }, {"sext.b", 0, INSN_CLASS_I, "d,s", 0, (int) M_SEXTB, match_never, INSN_MACRO }, +{"sext.h", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs,Cw", MATCH_C_SEXT_H, MASK_C_SEXT_H, match_opcode, INSN_ALIAS }, {"sext.h", 0, INSN_CLASS_ZBB, "d,s", MATCH_SEXT_H, MASK_SEXT_H, match_opcode, 0 }, {"sext.h", 0, INSN_CLASS_I, "d,s", 0, (int) M_SEXTH, match_never, INSN_MACRO }, +{"zext.h", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs,Cw", MATCH_C_ZEXT_H, MASK_C_ZEXT_H, match_opcode, INSN_ALIAS }, {"zext.h", 32, INSN_CLASS_ZBB, "d,s", MATCH_PACK, MASK_PACK | MASK_RS2, match_opcode, 0 }, {"zext.h", 64, INSN_CLASS_ZBB, "d,s", MATCH_PACKW, MASK_PACKW | MASK_RS2, match_opcode, 0 }, {"zext.h", 0, INSN_CLASS_I, "d,s", 0, (int) M_ZEXTH, match_never, INSN_MACRO }, @@ -1055,6 +1067,7 @@ const struct riscv_opcode riscv_opcodes[] = {"sh1add.uw", 64, INSN_CLASS_ZBA, "d,s,t", MATCH_SH1ADD_UW, MASK_SH1ADD_UW, match_opcode, 0 }, {"sh2add.uw", 64, INSN_CLASS_ZBA, "d,s,t", MATCH_SH2ADD_UW, MASK_SH2ADD_UW, match_opcode, 0 }, {"sh3add.uw", 64, INSN_CLASS_ZBA, "d,s,t", MATCH_SH3ADD_UW, MASK_SH3ADD_UW, match_opcode, 0 }, +{"zext.w", 64, INSN_CLASS_ZCB_AND_ZBA, "Cs,Cw", MATCH_C_ZEXT_W, MASK_C_ZEXT_W, match_opcode, INSN_ALIAS }, {"zext.w", 64, INSN_CLASS_ZBA, "d,s", MATCH_ADD_UW, MASK_ADD_UW | MASK_RS2, match_opcode, INSN_ALIAS }, {"zext.w", 64, INSN_CLASS_I, "d,s", 0, (int) M_ZEXTW, match_never, INSN_MACRO }, {"add.uw", 64, INSN_CLASS_ZBA, "d,s,t", MATCH_ADD_UW, MASK_ADD_UW, match_opcode, 0 }, @@ -1939,6 +1952,21 @@ const struct riscv_opcode riscv_opcodes[] = {"vsm3c.vi", 0, INSN_CLASS_ZVKSH, "Vd,Vt,Vj", MATCH_VSM3C_VI, MASK_VSM3C_VI, match_opcode, 0}, {"vsm3me.vv", 0, INSN_CLASS_ZVKSH, "Vd,Vt,Vs", MATCH_VSM3ME_VV, MASK_VSM3ME_VV, match_opcode, 0}, +/* ZCB instructions. */ +{"c.lbu", 0, INSN_CLASS_ZCB, "Ct,Wcb(Cs)", MATCH_C_LBU, MASK_C_LBU, match_opcode, INSN_DREF|INSN_1_BYTE }, +{"c.lhu", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_LHU, MASK_C_LHU, match_opcode, INSN_DREF|INSN_2_BYTE }, +{"c.lh", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_LH, MASK_C_LH, match_opcode, INSN_DREF|INSN_2_BYTE }, +{"c.sb", 0, INSN_CLASS_ZCB, "Ct,Wcb(Cs)", MATCH_C_SB, MASK_C_SB, match_opcode, INSN_DREF|INSN_1_BYTE }, +{"c.sh", 0, INSN_CLASS_ZCB, "Ct,Wch(Cs)", MATCH_C_SH, MASK_C_SH, match_opcode, INSN_DREF|INSN_2_BYTE }, +{"c.not", 0, INSN_CLASS_ZCB, "Cs", MATCH_C_NOT, MASK_C_NOT, match_opcode, 0 }, +{"c.mul", 0, INSN_CLASS_ZCB_AND_ZMMUL, "Cs,Ct", MATCH_C_MUL, MASK_C_MUL, match_opcode, 0 }, +{"c.sext.b", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs", MATCH_C_SEXT_B, MASK_C_SEXT_B, match_opcode, 0 }, +{"c.sext.h", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs", MATCH_C_SEXT_H, MASK_C_SEXT_H, match_opcode, 0 }, +{"c.zext.h", 0, INSN_CLASS_ZCB_AND_ZBB, "Cs", MATCH_C_ZEXT_H, MASK_C_ZEXT_H, match_opcode, 0 }, +{"c.zext.w", 64, INSN_CLASS_ZCB_AND_ZBA, "Cs", MATCH_C_ZEXT_W, MASK_C_ZEXT_W, match_opcode, 0 }, +{"c.zext.b", 0, INSN_CLASS_ZCB, "Cs", MATCH_C_ZEXT_B, MASK_C_ZEXT_B, match_opcode, 0 }, +{"c.sext.w", 64, INSN_CLASS_ZCB, "d", MATCH_C_ADDIW, MASK_C_ADDIW|MASK_RVC_IMM, match_rd_nonzero, INSN_ALIAS }, + /* Supervisor instructions. */ {"csrr", 0, INSN_CLASS_ZICSR, "d,E", MATCH_CSRRS, MASK_CSRRS|MASK_RS1, match_opcode, INSN_ALIAS }, {"csrw", 0, INSN_CLASS_ZICSR, "E,s", MATCH_CSRRW, MASK_CSRRW|MASK_RD, match_opcode, INSN_ALIAS }, -- cgit v1.1