From: Christoph Müllner Date: Tue, 21 Jun 2022 13:30:56 +0000 (+0200) Subject: RISC-V: Add Zawrs ISA extension support X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eb668e50036;p=binutils-gdb.git RISC-V: Add Zawrs ISA extension support This patch adds support for the Zawrs ISA extension ("wrs.nto" and "wrs.sto" instructions). The specification can be found here: https://github.com/riscv/riscv-zawrs/blob/main/zawrs.adoc Signed-off-by: Christoph Müllner --- diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c index 1c2efb171bb..fa393c7c427 100644 --- a/bfd/elfxx-riscv.c +++ b/bfd/elfxx-riscv.c @@ -1162,6 +1162,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] = {"zifencei", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, {"zihintpause", ISA_SPEC_CLASS_DRAFT, 2, 0, 0 }, {"zmmul", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, + {"zawrs", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"zfh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"zfhmin", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"zfinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, @@ -2309,6 +2310,8 @@ riscv_multi_subset_supports (riscv_parse_subset_t *rps, return riscv_subset_supports (rps, "zmmul"); case INSN_CLASS_A: return riscv_subset_supports (rps, "a"); + case INSN_CLASS_ZAWRS: + return riscv_subset_supports (rps, "zawrs"); case INSN_CLASS_F: return riscv_subset_supports (rps, "f"); case INSN_CLASS_D: @@ -2446,6 +2449,8 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps, return _ ("m' or `zmmul"); case INSN_CLASS_A: return "a"; + case INSN_CLASS_ZAWRS: + return "zawrs"; case INSN_CLASS_F: return "f"; case INSN_CLASS_D: diff --git a/gas/testsuite/gas/riscv/zawrs-32.d b/gas/testsuite/gas/riscv/zawrs-32.d new file mode 100644 index 00000000000..32e3a07fb3a --- /dev/null +++ b/gas/testsuite/gas/riscv/zawrs-32.d @@ -0,0 +1,11 @@ +#as: -march=rv32i_zawrs +#source: zawrs.s +#objdump: -dr + +.*:[ ]+file format .* + +Disassembly of section .text: + +0+000 : +[ ]+[0-9a-f]+:[ ]+00d00073[ ]+wrs.nto +[ ]+[0-9a-f]+:[ ]+01d00073[ ]+wrs.sto diff --git a/gas/testsuite/gas/riscv/zawrs.d b/gas/testsuite/gas/riscv/zawrs.d new file mode 100644 index 00000000000..9fe44f7e359 --- /dev/null +++ b/gas/testsuite/gas/riscv/zawrs.d @@ -0,0 +1,11 @@ +#as: -march=rv64i_zawrs +#source: zawrs.s +#objdump: -dr + +.*:[ ]+file format .* + +Disassembly of section .text: + +0+000 : +[ ]+[0-9a-f]+:[ ]+00d00073[ ]+wrs.nto +[ ]+[0-9a-f]+:[ ]+01d00073[ ]+wrs.sto diff --git a/gas/testsuite/gas/riscv/zawrs.s b/gas/testsuite/gas/riscv/zawrs.s new file mode 100644 index 00000000000..138b7b5ca77 --- /dev/null +++ b/gas/testsuite/gas/riscv/zawrs.s @@ -0,0 +1,3 @@ +target: + wrs.nto + wrs.sto diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h index 43a6bef5863..e40592159cd 100644 --- a/include/opcode/riscv-opc.h +++ b/include/opcode/riscv-opc.h @@ -2113,6 +2113,11 @@ #define MASK_CBO_INVAL 0xfff07fff #define MATCH_CBO_ZERO 0x40200f #define MASK_CBO_ZERO 0xfff07fff +/* Zawrs intructions. */ +#define MATCH_WRS_NTO 0x00d00073 +#define MASK_WRS_NTO 0xffffffff +#define MATCH_WRS_STO 0x01d00073 +#define MASK_WRS_STO 0xffffffff /* Vendor-specific (T-Head) XTheadBa instructions. */ #define MATCH_TH_ADDSL 0x0000100b #define MASK_TH_ADDSL 0xf800707f @@ -3066,6 +3071,9 @@ DECLARE_INSN(cbo_clean, MATCH_CBO_CLEAN, MASK_CBO_CLEAN); DECLARE_INSN(cbo_flush, MATCH_CBO_FLUSH, MASK_CBO_FLUSH); DECLARE_INSN(cbo_inval, MATCH_CBO_INVAL, MASK_CBO_INVAL); DECLARE_INSN(cbo_zero, MATCH_CBO_ZERO, MASK_CBO_ZERO); +/* Zawrs instructions. */ +DECLARE_INSN(wrs_nto, MATCH_WRS_NTO, MASK_WRS_NTO) +DECLARE_INSN(wrs_sto, MATCH_WRS_STO, MASK_WRS_STO) /* Vendor-specific (T-Head) XTheadBa instructions. */ DECLARE_INSN(th_addsl, MATCH_TH_ADDSL, MASK_TH_ADDSL) /* Vendor-specific (T-Head) XTheadBb instructions. */ diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h index 1b329ef1557..dd2569f6d55 100644 --- a/include/opcode/riscv.h +++ b/include/opcode/riscv.h @@ -385,6 +385,7 @@ enum riscv_insn_class INSN_CLASS_ZIFENCEI, INSN_CLASS_ZIHINTPAUSE, INSN_CLASS_ZMMUL, + INSN_CLASS_ZAWRS, INSN_CLASS_F_OR_ZFINX, INSN_CLASS_D_OR_ZDINX, INSN_CLASS_Q_OR_ZQINX, diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c index c1bcdb7b6b9..83fcc68c375 100644 --- a/opcodes/riscv-opc.c +++ b/opcodes/riscv-opc.c @@ -950,6 +950,10 @@ const struct riscv_opcode riscv_opcodes[] = {"cbo.inval", 0, INSN_CLASS_ZICBOM, "0(s)", MATCH_CBO_INVAL, MASK_CBO_INVAL, match_opcode, 0 }, {"cbo.zero", 0, INSN_CLASS_ZICBOZ, "0(s)", MATCH_CBO_ZERO, MASK_CBO_ZERO, match_opcode, 0 }, +/* Zawrs instructions. */ +{"wrs.nto", 0, INSN_CLASS_ZAWRS, "", MATCH_WRS_NTO, MASK_WRS_NTO, match_opcode, 0 }, +{"wrs.sto", 0, INSN_CLASS_ZAWRS, "", MATCH_WRS_STO, MASK_WRS_STO, match_opcode, 0 }, + /* Zbb or zbkb instructions. */ {"clz", 0, INSN_CLASS_ZBB, "d,s", MATCH_CLZ, MASK_CLZ, match_opcode, 0 }, {"ctz", 0, INSN_CLASS_ZBB, "d,s", MATCH_CTZ, MASK_CTZ, match_opcode, 0 },