RISC-V: Add support for Zimop extension

This implements the Zimop (May-Be-Operations) extension, as of version 1.0.

View detailed information in:
<https://github.com/riscv/riscv-isa-manual/blob/main/src/zimop.adoc>

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_multi_subset_supports): Handle Zimop
	(riscv_multi_subset_supports_ext): Ditto.

gas/ChangeLog:

	* NEWS: Updated.
	* testsuite/gas/riscv/march-help.l: Ditto.
	* testsuite/gas/riscv/zimop.d: New test.
	* testsuite/gas/riscv/zimop.s: New test.

include/ChangeLog:

	* opcode/riscv-opc.h (DECLARE_INSN): New declarations for Zimop.
	(MATCH_MOP_R_0, MATCH_MOP_R_1, MATCH_MOP_R_2, MATCH_MOP_R_3,
	MATCH_MOP_R_4, MATCH_MOP_R_5, MATCH_MOP_R_6, MATCH_MOP_R_7,
	MATCH_MOP_R_8, MATCH_MOP_R_9, MATCH_MOP_R_10, MATCH_MOP_R_11,
	MATCH_MOP_R_12, MATCH_MOP_R_13, MATCH_MOP_R_14, MATCH_MOP_R_15,
	MATCH_MOP_R_16, MATCH_MOP_R_17, MATCH_MOP_R_18, MATCH_MOP_R_19,
	MATCH_MOP_R_20, MATCH_MOP_R_21, MATCH_MOP_R_22, MATCH_MOP_R_23,
	MATCH_MOP_R_24, MATCH_MOP_R_25, MATCH_MOP_R_26, MATCH_MOP_R_27,
	MATCH_MOP_R_28, MATCH_MOP_R_29, MATCH_MOP_R_30, MATCH_MOP_R_31,
	MATCH_MOP_RR_0, MATCH_MOP_RR_1, MATCH_MOP_RR_2, MATCH_MOP_RR_3,
	MATCH_MOP_RR_4, MATCH_MOP_RR_5, MATCH_MOP_RR_6, MATCH_MOP_RR_7): Define.
	(MASK_MOP_R_0, MASK_MOP_R_1, MASK_MOP_R_2, MASK_MOP_R_3, MASK_MOP_R_4,
	MASK_MOP_R_5, MASK_MOP_R_6, MASK_MOP_R_7, MASK_MOP_R_8, MASK_MOP_R_9,
	MASK_MOP_R_10, MASK_MOP_R_11, MASK_MOP_R_12, MASK_MOP_R_13,
	MASK_MOP_R_14, MASK_MOP_R_15, MASK_MOP_R_16, MASK_MOP_R_17,
	MASK_MOP_R_18, MASK_MOP_R_19, MASK_MOP_R_20, MASK_MOP_R_21,
	MASK_MOP_R_22, MASK_MOP_R_23, MASK_MOP_R_24, MASK_MOP_R_25,
	MASK_MOP_R_26, MASK_MOP_R_27, MASK_MOP_R_28, MASK_MOP_R_29,
	MASK_MOP_R_30, MASK_MOP_R_31, MASK_MOP_RR_0, MASK_MOP_RR_1,
	MASK_MOP_RR_2, MASK_MOP_RR_3, MASK_MOP_RR_4, MASK_MOP_RR_5,
	MASK_MOP_RR_6, MASK_MOP_RR_7): Ditto.
	* opcode/riscv.h (enum riscv_insn_class): Add INSN_CLASS_ZIMOP.

opcodes/ChangeLog:

	* riscv-opc.c: Add Zimop instructions.

8 files changed, 264 insertions, 0 deletions

diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index b8f314d..164a11c 100644
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -1344,6 +1344,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] =
   {"zihintntl",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zihintpause",	ISA_SPEC_CLASS_DRAFT,		2, 0,  0 },
   {"zihpm",		ISA_SPEC_CLASS_DRAFT,		2, 0,  0 },
+  {"zimop",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zmmul",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"za64rs",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"za128rs",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
@@ -2556,6 +2557,8 @@ riscv_multi_subset_supports (riscv_parse_subset_t *rps,
 		  || riscv_subset_supports (rps, "zca")));
     case INSN_CLASS_ZIHINTPAUSE:
       return riscv_subset_supports (rps, "zihintpause");
+    case INSN_CLASS_ZIMOP:
+      return riscv_subset_supports (rps, "zimop");
     case INSN_CLASS_M:
       return riscv_subset_supports (rps, "m");
     case INSN_CLASS_ZMMUL:
@@ -2803,6 +2806,8 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps,
 	return _("c' or `zca");
     case INSN_CLASS_ZIHINTPAUSE:
       return "zihintpause";
+    case INSN_CLASS_ZIMOP:
+      return "zimop";
     case INSN_CLASS_M:
       return "m";
     case INSN_CLASS_ZMMUL:
diff --git a/gas/NEWS b/gas/NEWS
index b9d742a..96077f8 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -1,5 +1,7 @@
 -*- text -*-
 
+* Add support for RISC-V Zimop extension with version 1.0.
+
 Changes in 2.43:
 
 * Add support for LoongArch .option for fine-grained control of assembly
diff --git a/gas/testsuite/gas/riscv/march-help.l b/gas/testsuite/gas/riscv/march-help.l
index 97521c7..cb8590a 100644
--- a/gas/testsuite/gas/riscv/march-help.l
+++ b/gas/testsuite/gas/riscv/march-help.l
@@ -25,6 +25,7 @@ All available -march extensions for RISC-V:
 	zihintntl                               1.0
 	zihintpause                             2.0
 	zihpm                                   2.0
+	zimop                                   1.0
 	zmmul                                   1.0
 	za64rs                                  1.0
 	za128rs                                 1.0
diff --git a/gas/testsuite/gas/riscv/zimop.d b/gas/testsuite/gas/riscv/zimop.d
new file mode 100644
index 0000000..becb72c
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zimop.d
@@ -0,0 +1,48 @@
+#as: -march=rv64i_zimop
+#objdump: -d
+
+.*:[ 	]+file format .*
+
+Disassembly of section .text:
+
+0+000 <target>:
+[ 	]+[0-9a-f]+:[ 	]+81c5c573[ 	]+mop.r.0[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+81d5c573[ 	]+mop.r.1[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+81e5c573[ 	]+mop.r.2[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+81f5c573[ 	]+mop.r.3[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+85c5c573[ 	]+mop.r.4[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+85d5c573[ 	]+mop.r.5[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+85e5c573[ 	]+mop.r.6[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+85f5c573[ 	]+mop.r.7[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+89c5c573[ 	]+mop.r.8[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+89d5c573[ 	]+mop.r.9[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+89e5c573[ 	]+mop.r.10[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+89f5c573[ 	]+mop.r.11[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+8dc5c573[ 	]+mop.r.12[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+8dd5c573[ 	]+mop.r.13[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+8de5c573[ 	]+mop.r.14[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+8df5c573[ 	]+mop.r.15[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c1c5c573[ 	]+mop.r.16[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c1d5c573[ 	]+mop.r.17[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c1e5c573[ 	]+mop.r.18[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c1f5c573[ 	]+mop.r.19[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c5c5c573[ 	]+mop.r.20[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c5d5c573[ 	]+mop.r.21[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c5e5c573[ 	]+mop.r.22[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c5f5c573[ 	]+mop.r.23[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c9c5c573[ 	]+mop.r.24[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c9d5c573[ 	]+mop.r.25[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c9e5c573[ 	]+mop.r.26[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+c9f5c573[ 	]+mop.r.27[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+cdc5c573[ 	]+mop.r.28[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+cdd5c573[ 	]+mop.r.29[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+cde5c573[ 	]+mop.r.30[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+cdf5c573[ 	]+mop.r.31[ 	]+a0,a1
+[ 	]+[0-9a-f]+:[ 	]+82c5c573[ 	]+mop.rr.0[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+86c5c573[ 	]+mop.rr.1[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+8ac5c573[ 	]+mop.rr.2[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+8ec5c573[ 	]+mop.rr.3[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+c2c5c573[ 	]+mop.rr.4[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+c6c5c573[ 	]+mop.rr.5[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+cac5c573[ 	]+mop.rr.6[ 	]+a0,a1,a2
+[ 	]+[0-9a-f]+:[ 	]+cec5c573[ 	]+mop.rr.7[ 	]+a0,a1,a2
diff --git a/gas/testsuite/gas/riscv/zimop.s b/gas/testsuite/gas/riscv/zimop.s
new file mode 100644
index 0000000..d244c1f
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zimop.s
@@ -0,0 +1,43 @@
+target:
+	# mop.r.n
+	mop.r.0 a0, a1
+	mop.r.1 a0, a1
+	mop.r.2 a0, a1
+	mop.r.3 a0, a1
+	mop.r.4 a0, a1
+	mop.r.5 a0, a1
+	mop.r.6 a0, a1
+	mop.r.7 a0, a1
+	mop.r.8 a0, a1
+	mop.r.9 a0, a1
+	mop.r.10 a0, a1
+	mop.r.11 a0, a1
+	mop.r.12 a0, a1
+	mop.r.13 a0, a1
+	mop.r.14 a0, a1
+	mop.r.15 a0, a1
+	mop.r.16 a0, a1
+	mop.r.17 a0, a1
+	mop.r.18 a0, a1
+	mop.r.19 a0, a1
+	mop.r.20 a0, a1
+	mop.r.21 a0, a1
+	mop.r.22 a0, a1
+	mop.r.23 a0, a1
+	mop.r.24 a0, a1
+	mop.r.25 a0, a1
+	mop.r.26 a0, a1
+	mop.r.27 a0, a1
+	mop.r.28 a0, a1
+	mop.r.29 a0, a1
+	mop.r.30 a0, a1
+	mop.r.31 a0, a1
+	# mop.rr.n
+	mop.rr.0 a0, a1, a2
+	mop.rr.1 a0, a1, a2
+	mop.rr.2 a0, a1, a2
+	mop.rr.3 a0, a1, a2
+	mop.rr.4 a0, a1, a2
+	mop.rr.5 a0, a1, a2
+	mop.rr.6 a0, a1, a2
+	mop.rr.7 a0, a1, a2
diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h
index f0e1d99..9ef9c6f 100644
--- a/include/opcode/riscv-opc.h
+++ b/include/opcode/riscv-opc.h
@@ -2364,6 +2364,87 @@
 #define MASK_C_NTL_S1 0xffff
 #define MATCH_C_NTL_ALL 0x9016
 #define MASK_C_NTL_ALL 0xffff
+/* Zimop instructions.  */
+#define MATCH_MOP_R_0 0x81c04073
+#define MASK_MOP_R_0 0xfff0707f
+#define MATCH_MOP_R_1 0x81d04073
+#define MASK_MOP_R_1 0xfff0707f
+#define MATCH_MOP_R_2 0x81e04073
+#define MASK_MOP_R_2 0xfff0707f
+#define MATCH_MOP_R_3 0x81f04073
+#define MASK_MOP_R_3 0xfff0707f
+#define MATCH_MOP_R_4 0x85c04073
+#define MASK_MOP_R_4 0xfff0707f
+#define MATCH_MOP_R_5 0x85d04073
+#define MASK_MOP_R_5 0xfff0707f
+#define MATCH_MOP_R_6 0x85e04073
+#define MASK_MOP_R_6 0xfff0707f
+#define MATCH_MOP_R_7 0x85f04073
+#define MASK_MOP_R_7 0xfff0707f
+#define MATCH_MOP_R_8 0x89c04073
+#define MASK_MOP_R_8 0xfff0707f
+#define MATCH_MOP_R_9 0x89d04073
+#define MASK_MOP_R_9 0xfff0707f
+#define MATCH_MOP_R_10 0x89e04073
+#define MASK_MOP_R_10 0xfff0707f
+#define MATCH_MOP_R_11 0x89f04073
+#define MASK_MOP_R_11 0xfff0707f
+#define MATCH_MOP_R_12 0x8dc04073
+#define MASK_MOP_R_12 0xfff0707f
+#define MATCH_MOP_R_13 0x8dd04073
+#define MASK_MOP_R_13 0xfff0707f
+#define MATCH_MOP_R_14 0x8de04073
+#define MASK_MOP_R_14 0xfff0707f
+#define MATCH_MOP_R_15 0x8df04073
+#define MASK_MOP_R_15 0xfff0707f
+#define MATCH_MOP_R_16 0xc1c04073
+#define MASK_MOP_R_16 0xfff0707f
+#define MATCH_MOP_R_17 0xc1d04073
+#define MASK_MOP_R_17 0xfff0707f
+#define MATCH_MOP_R_18 0xc1e04073
+#define MASK_MOP_R_18 0xfff0707f
+#define MATCH_MOP_R_19 0xc1f04073
+#define MASK_MOP_R_19 0xfff0707f
+#define MATCH_MOP_R_20 0xc5c04073
+#define MASK_MOP_R_20 0xfff0707f
+#define MATCH_MOP_R_21 0xc5d04073
+#define MASK_MOP_R_21 0xfff0707f
+#define MATCH_MOP_R_22 0xc5e04073
+#define MASK_MOP_R_22 0xfff0707f
+#define MATCH_MOP_R_23 0xc5f04073
+#define MASK_MOP_R_23 0xfff0707f
+#define MATCH_MOP_R_24 0xc9c04073
+#define MASK_MOP_R_24 0xfff0707f
+#define MATCH_MOP_R_25 0xc9d04073
+#define MASK_MOP_R_25 0xfff0707f
+#define MATCH_MOP_R_26 0xc9e04073
+#define MASK_MOP_R_26 0xfff0707f
+#define MATCH_MOP_R_27 0xc9f04073
+#define MASK_MOP_R_27 0xfff0707f
+#define MATCH_MOP_R_28 0xcdc04073
+#define MASK_MOP_R_28 0xfff0707f
+#define MATCH_MOP_R_29 0xcdd04073
+#define MASK_MOP_R_29 0xfff0707f
+#define MATCH_MOP_R_30 0xcde04073
+#define MASK_MOP_R_30 0xfff0707f
+#define MATCH_MOP_R_31 0xcdf04073
+#define MASK_MOP_R_31 0xfff0707f
+#define MATCH_MOP_RR_0 0x82004073
+#define MASK_MOP_RR_0 0xfe00707f
+#define MATCH_MOP_RR_1 0x86004073
+#define MASK_MOP_RR_1 0xfe00707f
+#define MATCH_MOP_RR_2 0x8a004073
+#define MASK_MOP_RR_2 0xfe00707f
+#define MATCH_MOP_RR_3 0x8e004073
+#define MASK_MOP_RR_3 0xfe00707f
+#define MATCH_MOP_RR_4 0xc2004073
+#define MASK_MOP_RR_4 0xfe00707f
+#define MATCH_MOP_RR_5 0xc6004073
+#define MASK_MOP_RR_5 0xfe00707f
+#define MATCH_MOP_RR_6 0xca004073
+#define MASK_MOP_RR_6 0xfe00707f
+#define MATCH_MOP_RR_7 0xce004073
+#define MASK_MOP_RR_7 0xfe00707f
 /* Zacas instructions.  */
 #define MATCH_AMOCAS_W 0x2800202f
 #define MASK_AMOCAS_W 0xf800707f
@@ -4014,6 +4095,47 @@ DECLARE_INSN(c_ntl_p1, MATCH_C_NTL_P1, MASK_C_NTL_P1)
 DECLARE_INSN(c_ntl_pall, MATCH_C_NTL_PALL, MASK_C_NTL_PALL)
 DECLARE_INSN(c_ntl_s1, MATCH_C_NTL_S1, MASK_C_NTL_S1)
 DECLARE_INSN(c_ntl_all, MATCH_C_NTL_ALL, MASK_C_NTL_ALL)
+/* Zimop instructions.  */
+DECLARE_INSN(MOP_R_0, MATCH_MOP_R_0, MASK_MOP_R_0)
+DECLARE_INSN(MOP_R_1, MATCH_MOP_R_1, MASK_MOP_R_1)
+DECLARE_INSN(MOP_R_2, MATCH_MOP_R_2, MASK_MOP_R_2)
+DECLARE_INSN(MOP_R_3, MATCH_MOP_R_3, MASK_MOP_R_3)
+DECLARE_INSN(MOP_R_4, MATCH_MOP_R_4, MASK_MOP_R_4)
+DECLARE_INSN(MOP_R_5, MATCH_MOP_R_5, MASK_MOP_R_5)
+DECLARE_INSN(MOP_R_6, MATCH_MOP_R_6, MASK_MOP_R_6)
+DECLARE_INSN(MOP_R_7, MATCH_MOP_R_7, MASK_MOP_R_7)
+DECLARE_INSN(MOP_R_8, MATCH_MOP_R_8, MASK_MOP_R_8)
+DECLARE_INSN(MOP_R_9, MATCH_MOP_R_9, MASK_MOP_R_9)
+DECLARE_INSN(MOP_R_10, MATCH_MOP_R_10, MASK_MOP_R_10)
+DECLARE_INSN(MOP_R_11, MATCH_MOP_R_11, MASK_MOP_R_11)
+DECLARE_INSN(MOP_R_12, MATCH_MOP_R_12, MASK_MOP_R_12)
+DECLARE_INSN(MOP_R_13, MATCH_MOP_R_13, MASK_MOP_R_13)
+DECLARE_INSN(MOP_R_14, MATCH_MOP_R_14, MASK_MOP_R_14)
+DECLARE_INSN(MOP_R_15, MATCH_MOP_R_15, MASK_MOP_R_15)
+DECLARE_INSN(MOP_R_16, MATCH_MOP_R_16, MASK_MOP_R_16)
+DECLARE_INSN(MOP_R_17, MATCH_MOP_R_17, MASK_MOP_R_17)
+DECLARE_INSN(MOP_R_18, MATCH_MOP_R_18, MASK_MOP_R_18)
+DECLARE_INSN(MOP_R_19, MATCH_MOP_R_19, MASK_MOP_R_19)
+DECLARE_INSN(MOP_R_20, MATCH_MOP_R_20, MASK_MOP_R_20)
+DECLARE_INSN(MOP_R_21, MATCH_MOP_R_21, MASK_MOP_R_21)
+DECLARE_INSN(MOP_R_22, MATCH_MOP_R_22, MASK_MOP_R_22)
+DECLARE_INSN(MOP_R_23, MATCH_MOP_R_23, MASK_MOP_R_23)
+DECLARE_INSN(MOP_R_24, MATCH_MOP_R_24, MASK_MOP_R_24)
+DECLARE_INSN(MOP_R_25, MATCH_MOP_R_25, MASK_MOP_R_25)
+DECLARE_INSN(MOP_R_26, MATCH_MOP_R_26, MASK_MOP_R_26)
+DECLARE_INSN(MOP_R_27, MATCH_MOP_R_27, MASK_MOP_R_27)
+DECLARE_INSN(MOP_R_28, MATCH_MOP_R_28, MASK_MOP_R_28)
+DECLARE_INSN(MOP_R_29, MATCH_MOP_R_29, MASK_MOP_R_29)
+DECLARE_INSN(MOP_R_30, MATCH_MOP_R_30, MASK_MOP_R_30)
+DECLARE_INSN(MOP_R_31, MATCH_MOP_R_31, MASK_MOP_R_31)
+DECLARE_INSN(MOP_RR_0, MATCH_MOP_RR_0, MASK_MOP_RR_0)
+DECLARE_INSN(MOP_RR_1, MATCH_MOP_RR_1, MASK_MOP_RR_1)
+DECLARE_INSN(MOP_RR_2, MATCH_MOP_RR_2, MASK_MOP_RR_2)
+DECLARE_INSN(MOP_RR_3, MATCH_MOP_RR_3, MASK_MOP_RR_3)
+DECLARE_INSN(MOP_RR_4, MATCH_MOP_RR_4, MASK_MOP_RR_4)
+DECLARE_INSN(MOP_RR_5, MATCH_MOP_RR_5, MASK_MOP_RR_5)
+DECLARE_INSN(MOP_RR_6, MATCH_MOP_RR_6, MASK_MOP_RR_6)
+DECLARE_INSN(MOP_RR_7, MATCH_MOP_RR_7, MASK_MOP_RR_7)
 /* Zacas instructions.  */
 DECLARE_INSN(amocas_w, MATCH_AMOCAS_W, MASK_AMOCAS_W)
 DECLARE_INSN(amocas_d, MATCH_AMOCAS_D, MASK_AMOCAS_D)
diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h
index fedd478..6793d99 100644
--- a/include/opcode/riscv.h
+++ b/include/opcode/riscv.h
@@ -437,6 +437,7 @@ enum riscv_insn_class
   INSN_CLASS_ZIHINTNTL,
   INSN_CLASS_ZIHINTNTL_AND_C,
   INSN_CLASS_ZIHINTPAUSE,
+  INSN_CLASS_ZIMOP,
   INSN_CLASS_ZMMUL,
   INSN_CLASS_ZAAMO,
   INSN_CLASS_ZALRSC,
diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c
index 14ec290..7e32627 100644
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -1124,6 +1124,48 @@ const struct riscv_opcode riscv_opcodes[] =
 {"czero.eqz",  0, INSN_CLASS_ZICOND, "d,s,t", MATCH_CZERO_EQZ, MASK_CZERO_EQZ, match_opcode, 0 },
 {"czero.nez",  0, INSN_CLASS_ZICOND, "d,s,t", MATCH_CZERO_NEZ, MASK_CZERO_NEZ, match_opcode, 0 },
 
+/* Zimop instructions.  */
+{"mop.r.0",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_0,  MASK_MOP_R_0,  match_opcode, 0 },
+{"mop.r.1",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_1,  MASK_MOP_R_1,  match_opcode, 0 },
+{"mop.r.2",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_2,  MASK_MOP_R_2,  match_opcode, 0 },
+{"mop.r.3",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_3,  MASK_MOP_R_3,  match_opcode, 0 },
+{"mop.r.4",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_4,  MASK_MOP_R_4,  match_opcode, 0 },
+{"mop.r.5",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_5,  MASK_MOP_R_5,  match_opcode, 0 },
+{"mop.r.6",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_6,  MASK_MOP_R_6,  match_opcode, 0 },
+{"mop.r.7",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_7,  MASK_MOP_R_7,  match_opcode, 0 },
+{"mop.r.8",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_8,  MASK_MOP_R_8,  match_opcode, 0 },
+{"mop.r.9",    0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_9,  MASK_MOP_R_9,  match_opcode, 0 },
+{"mop.r.10",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_10, MASK_MOP_R_10, match_opcode, 0 },
+{"mop.r.11",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_11, MASK_MOP_R_11, match_opcode, 0 },
+{"mop.r.12",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_12, MASK_MOP_R_12, match_opcode, 0 },
+{"mop.r.13",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_13, MASK_MOP_R_13, match_opcode, 0 },
+{"mop.r.14",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_14, MASK_MOP_R_14, match_opcode, 0 },
+{"mop.r.15",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_15, MASK_MOP_R_15, match_opcode, 0 },
+{"mop.r.16",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_16, MASK_MOP_R_16, match_opcode, 0 },
+{"mop.r.17",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_17, MASK_MOP_R_17, match_opcode, 0 },
+{"mop.r.18",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_18, MASK_MOP_R_18, match_opcode, 0 },
+{"mop.r.19",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_19, MASK_MOP_R_19, match_opcode, 0 },
+{"mop.r.20",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_20, MASK_MOP_R_20, match_opcode, 0 },
+{"mop.r.21",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_21, MASK_MOP_R_21, match_opcode, 0 },
+{"mop.r.22",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_22, MASK_MOP_R_22, match_opcode, 0 },
+{"mop.r.23",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_23, MASK_MOP_R_23, match_opcode, 0 },
+{"mop.r.24",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_24, MASK_MOP_R_24, match_opcode, 0 },
+{"mop.r.25",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_25, MASK_MOP_R_25, match_opcode, 0 },
+{"mop.r.26",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_26, MASK_MOP_R_26, match_opcode, 0 },
+{"mop.r.27",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_27, MASK_MOP_R_27, match_opcode, 0 },
+{"mop.r.28",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_28, MASK_MOP_R_28, match_opcode, 0 },
+{"mop.r.29",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_29, MASK_MOP_R_29, match_opcode, 0 },
+{"mop.r.30",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_30, MASK_MOP_R_30, match_opcode, 0 },
+{"mop.r.31",   0, INSN_CLASS_ZIMOP, "d,s",    MATCH_MOP_R_31, MASK_MOP_R_31, match_opcode, 0 },
+{"mop.rr.0",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_0, MASK_MOP_RR_0, match_opcode, 0 },
+{"mop.rr.1",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_1, MASK_MOP_RR_1, match_opcode, 0 },
+{"mop.rr.2",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_2, MASK_MOP_RR_2, match_opcode, 0 },
+{"mop.rr.3",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_3, MASK_MOP_RR_3, match_opcode, 0 },
+{"mop.rr.4",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_4, MASK_MOP_RR_4, match_opcode, 0 },
+{"mop.rr.5",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_5, MASK_MOP_RR_5, match_opcode, 0 },
+{"mop.rr.6",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_6, MASK_MOP_RR_6, match_opcode, 0 },
+{"mop.rr.7",   0, INSN_CLASS_ZIMOP, "d,s,t",  MATCH_MOP_RR_7, MASK_MOP_RR_7, 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 },