diff --git a/arch/inst/I/pseudo/fence.tso.yaml b/arch/inst/I/pseudo/fence.tso.yaml
new file mode 100644
index 000000000..b0b640319
--- /dev/null
+++ b/arch/inst/I/pseudo/fence.tso.yaml
@@ -0,0 +1,20 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: fence.tso
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: I
+assembly: xs1, xd
+origin_instruction: fence
+encoding:
+  match: 100000110011-----000-----0001111
+  variables:
+  - name: rs1
+    location: 19-15
+  - name: rd
+    location: 11-7
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/ntl.all.yaml b/arch/inst/I/pseudo/ntl.all.yaml
new file mode 100644
index 000000000..f5e8501d2
--- /dev/null
+++ b/arch/inst/I/pseudo/ntl.all.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: ntl.all
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zihintntl
+assembly: ntl_all
+origin_instruction: add
+encoding:
+  match: '00000000010100000000000000110011'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/ntl.p1.yaml b/arch/inst/I/pseudo/ntl.p1.yaml
new file mode 100644
index 000000000..3765ce62d
--- /dev/null
+++ b/arch/inst/I/pseudo/ntl.p1.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: ntl.p1
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zihintntl
+assembly: ntl_p1
+origin_instruction: add
+encoding:
+  match: '00000000001000000000000000110011'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/ntl.pall.yaml b/arch/inst/I/pseudo/ntl.pall.yaml
new file mode 100644
index 000000000..57c8a52d9
--- /dev/null
+++ b/arch/inst/I/pseudo/ntl.pall.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: ntl.pall
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zihintntl
+assembly: ntl_pall
+origin_instruction: add
+encoding:
+  match: '00000000001100000000000000110011'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/ntl.s1.yaml b/arch/inst/I/pseudo/ntl.s1.yaml
new file mode 100644
index 000000000..4fefc8c2c
--- /dev/null
+++ b/arch/inst/I/pseudo/ntl.s1.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: ntl.s1
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zihintntl
+assembly: ntl_s1
+origin_instruction: add
+encoding:
+  match: '00000000010000000000000000110011'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/pause.yaml b/arch/inst/I/pseudo/pause.yaml
new file mode 100644
index 000000000..776b2a17d
--- /dev/null
+++ b/arch/inst/I/pseudo/pause.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: pause
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: I
+assembly: pause
+origin_instruction: fence
+encoding:
+  match: '00000001000000000000000000001111'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/prefetch.i.yaml b/arch/inst/I/pseudo/prefetch.i.yaml
new file mode 100644
index 000000000..8accb4ab9
--- /dev/null
+++ b/arch/inst/I/pseudo/prefetch.i.yaml
@@ -0,0 +1,21 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: prefetch.i
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zicbo
+assembly: xs1, imm
+origin_instruction: ori
+encoding:
+  match: -------00000-----110000000010011
+  variables:
+  - name: imm
+    location: 31-25
+    left_shift: 5
+  - name: rs1
+    location: 19-15
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/prefetch.r.yaml b/arch/inst/I/pseudo/prefetch.r.yaml
new file mode 100644
index 000000000..400c20c03
--- /dev/null
+++ b/arch/inst/I/pseudo/prefetch.r.yaml
@@ -0,0 +1,21 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: prefetch.r
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zicbo
+assembly: xs1, imm
+origin_instruction: ori
+encoding:
+  match: -------00001-----110000000010011
+  variables:
+  - name: imm
+    location: 31-25
+    left_shift: 5
+  - name: rs1
+    location: 19-15
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/prefetch.w.yaml b/arch/inst/I/pseudo/prefetch.w.yaml
new file mode 100644
index 000000000..7fb54dca9
--- /dev/null
+++ b/arch/inst/I/pseudo/prefetch.w.yaml
@@ -0,0 +1,21 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: prefetch.w
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: Zicbo
+assembly: xs1, imm
+origin_instruction: ori
+encoding:
+  match: -------00011-----110000000010011
+  variables:
+  - name: imm
+    location: 31-25
+    left_shift: 5
+  - name: rs1
+    location: 19-15
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/sbreak.yaml b/arch/inst/I/pseudo/sbreak.yaml
new file mode 100644
index 000000000..c6650aad5
--- /dev/null
+++ b/arch/inst/I/pseudo/sbreak.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: sbreak
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: I
+assembly: sbreak
+origin_instruction: ebreak
+encoding:
+  match: '00000000000100000000000001110011'
+  variables: []
+operation(): |
+      
diff --git a/arch/inst/I/pseudo/scall.yaml b/arch/inst/I/pseudo/scall.yaml
new file mode 100644
index 000000000..591301447
--- /dev/null
+++ b/arch/inst/I/pseudo/scall.yaml
@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=../../../schemas/inst_schema.json
+
+$schema: inst_schema.json#
+kind: pseudoinstruction
+name: scall
+long_name: No synopsis available.
+description: |
+      No description available.
+definedBy: I
+assembly: scall
+origin_instruction: ecall
+encoding:
+  match: '00000000000000000000000001110011'
+  variables: []
+operation(): |
+