diff --git a/osaca/data/zen1.yml b/osaca/data/zen1.yml
index a4abc50..e6fed4b 100644
--- a/osaca/data/zen1.yml
+++ b/osaca/data/zen1.yml
@@ -2,8 +2,8 @@ osaca_version: 0.3.0
 micro_architecture: "AMD Zen (family 17h)"
 arch_code: "ZEN1"
 isa: "x86"
-hidden_loads: true
-ports: ["0", "1", "2", "3", "3DV", "4", "5", "6", "7", "8", "8D", "9", "9D"]
+hidden_loads: false
+ports: ["0", "1", "2", "3", "3DV", "4", "5", "6", "7", "8", "9", "8D", "9D", "ST"]
 port_model_scheme: |
     ┌--------------------------------------┐  ┌-----------------------------------------------┐
     |       96 entries OoO scheduler       |  |           84 entries OoO scheduler            |
@@ -32,8 +32,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: add
       operands:
         - class: "register"
@@ -41,8 +41,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1    #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: addl
       operands:
         - class: "immediate"
@@ -50,8 +50,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: addq
       operands:
         - class: "immediate"
@@ -59,8 +59,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: cmpl
       operands:
         - class: "register"
@@ -68,8 +68,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: cmpq
       operands:
         - class: "register"
@@ -77,8 +77,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: cmpq
       operands:
         - class: "register"
@@ -89,20 +89,20 @@ instruction_forms:
           index: ~
           scale: 1
       throughput: 0.25
-      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: ja
       operands:
         - class: 'identifier'
       throughput: 0.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: jne
       operands:
         - class: 'identifier'
       throughput: 0.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: movl
       operands:
         - class: "memory"
@@ -113,8 +113,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.5
-      latency: 3.0
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+      latency: 3.0   # 0    1    2    3   3DV   4     5    6   7   8     9   8LD  9LD  ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5, 0.0]
     - name: mulsd
       operands:
         - class: "register"
@@ -122,8 +122,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: mulss
       operands:
         - class: "register"
@@ -131,8 +131,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: rcpss
       operands:
         - class: "register"
@@ -140,8 +140,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: ~ #1.0
-      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: sqrtsd
       operands:
         - class: "register"
@@ -149,8 +149,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: ~ #8.0
-      latency: 23.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 23.0 #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: sqrtss
       operands:
         - class: "register"
@@ -158,8 +158,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: ~ #5.0
-      latency: 17.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 17.0 #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: subq
       operands:
         - class: "register"
@@ -167,8 +167,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: subq
       operands:
         - class: "immediate"
@@ -176,8 +176,8 @@ instruction_forms:
         - class: "register"
           name: "gpr"
       throughput: 0.25
-      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vaddpd
       operands:
         - class: "register"
@@ -187,8 +187,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vaddpd
       operands:
         - class: "memory"
@@ -201,8 +201,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vaddpd
       operands:
         - class: "memory"
@@ -215,8 +215,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vaddsd
       operands:
         - class: "register"
@@ -226,8 +226,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vaddss
       operands:
         - class: "register"
@@ -237,8 +237,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vdivsd
       operands:
         - class: "register"
@@ -248,8 +248,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 4.0
-      latency: 13.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 1.0, 4.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 13.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 1.0, 4.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vdivss
       operands:
         - class: "register"
@@ -259,8 +259,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 3.0
-      latency: 10.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 1.0, 3.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 10.0 #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 1.0, 3.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vfmadd213pd
       operands:
         - class: "memory"
@@ -273,8 +273,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vfmadd213pd
       operands:
         - class: "memory"
@@ -287,8 +287,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vfmadd231pd
       operands:
         - class: "memory"
@@ -301,8 +301,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]   
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]   
     - name: vfmadd231pd
       operands:
         - class: "memory"
@@ -315,8 +315,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vfmadd132pd
       operands:
         - class: "memory"
@@ -329,8 +329,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vfmadd132pd
       operands:
         - class: "memory"
@@ -343,8 +343,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vmulsd
       operands:
         - class: "register"
@@ -354,8 +354,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vmulss
       operands:
         - class: "register"
@@ -365,8 +365,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vmulpd
       operands:
         - class: "memory"
@@ -379,8 +379,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5, 0.0]
     - name: vmulpd
       operands:
         - class: "memory"
@@ -393,8 +393,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5, 0.0]
     - name: vmulpd
       operands:
         - class: "register"
@@ -404,8 +404,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
     - name: vmulpd
       operands:
         - class: "memory"
@@ -418,8 +418,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vmulpd
       operands:
         - class: "memory"
@@ -432,8 +432,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vmovapd
       operands:
         - class: "memory"
@@ -444,8 +444,8 @@ instruction_forms:
         - class: "register"
           name: "xmm"
       throughput: 0.5
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5, 0.0]
     - name: vmovapd
       operands:
         - class: "register"
@@ -456,8 +456,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 1.0
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 1.0]
     - name: vmovapd
       operands:
         - class: "memory"
@@ -468,8 +468,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vmovapd
       operands:
         - class: "memory"
@@ -480,8 +480,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 1.0
-      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.0]
     - name: vmovapd
       operands:
         - class: "register"
@@ -492,8 +492,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 2.0
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 2.0]
     - name: vmovapd
       operands:
         - class: "register"
@@ -504,8 +504,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 2.0
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 2.0]
     - name: vmovaps
       operands:
         - class: "register"
@@ -516,8 +516,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 1.0
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 1.0]
     - name: vmovaps
       operands:
         - class: "register"
@@ -528,8 +528,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 1.0
-      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 1.0]
     - name: vmovupd
       operands:
         - class: "register"
@@ -540,8 +540,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 2.0
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 2.0]
     - name: vmovupd
       operands:
         - class: "register"
@@ -552,8 +552,8 @@ instruction_forms:
           index: "gpr"
           scale: 1
       throughput: 2.0
-      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 2.0]
     - name: vmovupd
       operands:
         - class: "memory"
@@ -564,8 +564,8 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 2.0
-      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 2.0]
     - name: vmovupd
       operands:
         - class: "memory"
@@ -576,5 +576,5 @@ instruction_forms:
         - class: "register"
           name: "ymm"
       throughput: 2.0
-      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
-      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8    9   8D   9D   ST
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0]
diff --git a/osaca/frontend.py b/osaca/frontend.py
index 357437a..16c3421 100755
--- a/osaca/frontend.py
+++ b/osaca/frontend.py
@@ -79,10 +79,9 @@ class Frontend(object):
     def _get_separator_list(self, separator, separator_2=' '):
         separator_list = []
         for i in range(len(self._data['ports']) - 1):
-            if (
-                re.search(r'\d+', self._data['ports'][i]).group()
-                == re.search(r'\d+', self._data['ports'][i + 1]).group()
-            ):
+            match_1 = re.search(r'\d+', self._data['ports'][i])
+            match_2 = re.search(r'\d+', self._data['ports'][i + 1])
+            if match_1 is not None and match_2 is not None and match_1.group() == match_2.group():
                 separator_list.append(separator_2)
             else:
                 separator_list.append(separator)
diff --git a/tests/test_files/hidden_load_machine_model.yml b/tests/test_files/hidden_load_machine_model.yml
new file mode 100644
index 0000000..a4abc50
--- /dev/null
+++ b/tests/test_files/hidden_load_machine_model.yml
@@ -0,0 +1,580 @@
+osaca_version: 0.3.0
+micro_architecture: "AMD Zen (family 17h)"
+arch_code: "ZEN1"
+isa: "x86"
+hidden_loads: true
+ports: ["0", "1", "2", "3", "3DV", "4", "5", "6", "7", "8", "8D", "9", "9D"]
+port_model_scheme: |
+    ┌--------------------------------------┐  ┌-----------------------------------------------┐
+    |       96 entries OoO scheduler       |  |           84 entries OoO scheduler            |
+    └--------------------------------------┘  └-----------------------------------------------┘
+       0 |        1 |       2 |       3 |        4 |     5 |     6 |     7 |      8 |     9 |
+         ▼         ▼         ▼         ▼          ▼       ▼       ▼       ▼        ▼       ▼
+     ┌-------┐ ┌-------┐ ┌-------┐ ┌-------┐  ┌------┐ ┌-----┐ ┌-----┐ ┌------┐ ┌-----┐ ┌-----┐
+     |SSE ALU| |SSE ALU| |SSE ALU| |SSE ALU|  | ALU  | | ALU | | ALU | | ALU  | | AGU | | AGU |
+     └-------┘ └-------┘ └-------┘ └-------┘  └------┘ └-----┘ └-----┘ └------┘ └-----┘ └-----┘
+     ┌-------┐ ┌-------┐ ┌-------┐ ┌-------┐  ┌------┐ ┌-----┐ ┌-----┐ ┌------┐    |       |
+     |SSE MUL| |SSE MUL| |SSE ADD| |SSE ADD|  |BRANCH| | MUL | | MUL | |BRANCH|    ▼       ▼
+     └-------┘ └-------┘ └-------┘ └-------┘  └------┘ └-----┘ └-----┘ └------┘ ┌-------------┐ 
+     ┌-------┐ ┌-------┐ ┌-------┐ ┌-------┐                                    |    LOAD     |
+     |SSE FMA| |SSE FMA| |  SSE  | |SSE DIV|                                    └-------------┘
+     └-------┘ └-------┘ |  SHUF | └-------┘                                    ┌-------------┐ 
+               ┌-------┐ └-------┘                                              |    LOAD     |
+               |  SSE  |                                                        └-------------┘
+               |  SHUF |                                                        ┌-------------┐
+               └-------┘                                                        |    STORE    |
+                                                                                └-------------┘
+instruction_forms:
+    - name: add
+      operands:
+        - class: "immediate"
+          imd: "int"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: add
+      operands:
+        - class: "register"
+          name: "gpr"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: addl
+      operands:
+        - class: "immediate"
+          imd: "int"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: addq
+      operands:
+        - class: "immediate"
+          imd: "int"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1.0  #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: cmpl
+      operands:
+        - class: "register"
+          name: "gpr"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: cmpq
+      operands:
+        - class: "register"
+          name: "gpr"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: cmpq
+      operands:
+        - class: "register"
+          name: "gpr"
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: ~
+          scale: 1
+      throughput: 0.25
+      latency: ~    #  0    1    2    3   3DV   4     5     6     7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: ja
+      operands:
+        - class: 'identifier'
+      throughput: 0.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: jne
+      operands:
+        - class: 'identifier'
+      throughput: 0.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: movl
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: ~
+          scale: 1
+        - class: "register"
+          name: "gpr"
+      throughput: 0.5
+      latency: 3.0
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+    - name: mulsd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: mulss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: rcpss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: ~ #1.0
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: sqrtsd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: ~ #8.0
+      latency: 23.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: sqrtss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: ~ #5.0
+      latency: 17.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: subq
+      operands:
+        - class: "register"
+          name: "gpr"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: subq
+      operands:
+        - class: "immediate"
+          imd: "int"
+        - class: "register"
+          name: "gpr"
+      throughput: 0.25
+      latency: 1.0  #  0    1    2    3   3DV    4     5     6    7     8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.25, 0.25, 0.25, 0.0, 0.0, 0.0, 0.0]
+    - name: vaddpd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vaddpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vaddpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vaddsd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vaddss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vdivsd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 4.0
+      latency: 13.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 1.0, 4.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vdivss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 3.0
+      latency: 10.0 #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 1.0, 3.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vfmadd213pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vfmadd213pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vfmadd231pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]   
+    - name: vfmadd231pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vfmadd132pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vfmadd132pd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: ~    #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vmulsd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vmulss
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vmulpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+    - name: vmulpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "xmm"
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 8.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.5, 0.5, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+    - name: vmulpd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+    - name: vmulpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vmulpd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 9.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vmovapd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "xmm"
+      throughput: 0.5
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.5, 0.5]
+    - name: vmovapd
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+      throughput: 1.0
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+    - name: vmovapd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vmovapd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+      throughput: 1.0
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]
+    - name: vmovapd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+      throughput: 2.0
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+    - name: vmovapd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+      throughput: 2.0
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+    - name: vmovaps
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+      throughput: 1.0
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+    - name: vmovaps
+      operands:
+        - class: "register"
+          name: "xmm"
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+      throughput: 1.0
+      latency: 4.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.5, 1.0, 0.5, 1.0]
+    - name: vmovupd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+      throughput: 2.0
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+    - name: vmovupd
+      operands:
+        - class: "register"
+          name: "ymm"
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+      throughput: 2.0
+      latency: 3.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+    - name: vmovupd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: ~
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+      throughput: 2.0
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
+    - name: vmovupd
+      operands:
+        - class: "memory"
+          base: "gpr"
+          offset: "imd"
+          index: "gpr"
+          scale: 1
+        - class: "register"
+          name: "ymm"
+      throughput: 2.0
+      latency: 5.0  #  0    1    2    3   3DV   4    5    6    7    8   8D    9   9D
+      port_pressure: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 1.0, 2.0]
diff --git a/tests/test_semantics.py b/tests/test_semantics.py
index 441c0f0..09be398 100755
--- a/tests/test_semantics.py
+++ b/tests/test_semantics.py
@@ -154,19 +154,22 @@ class TestSemanticTools(unittest.TestCase):
             dg.get_dependent_instruction_forms()
 
     def test_hidden_load(self):
-        machine_model_zen = MachineModel(arch='ZEN1')
-        semantics_zen = SemanticsAppender(machine_model_zen)
-        kernel_zen = self.parser_x86.parse_file(self.code_x86)
-        kernel_zen_2 = self.parser_x86.parse_file(self.code_x86)
-        kernel_zen_2 = self.parser_x86.parse_file(self.code_x86)[-3:]
-        kernel_zen_3 = self.parser_x86.parse_file(self.code_x86)[5:8]
-        semantics_zen.add_semantics(kernel_zen)
-        semantics_zen.add_semantics(kernel_zen_2)
-        semantics_zen.add_semantics(kernel_zen_3)
+        machine_model_hld = MachineModel(
+            path_to_yaml=self._find_file('hidden_load_machine_model.yml')
+        )
+        self.assertTrue(machine_model_hld.has_hidden_loads())
+        semantics_hld = SemanticsAppender(machine_model_hld)
+        kernel_hld = self.parser_x86.parse_file(self.code_x86)
+        kernel_hld_2 = self.parser_x86.parse_file(self.code_x86)
+        kernel_hld_2 = self.parser_x86.parse_file(self.code_x86)[-3:]
+        kernel_hld_3 = self.parser_x86.parse_file(self.code_x86)[5:8]
+        semantics_hld.add_semantics(kernel_hld)
+        semantics_hld.add_semantics(kernel_hld_2)
+        semantics_hld.add_semantics(kernel_hld_3)
 
-        num_hidden_loads = len([x for x in kernel_zen if INSTR_FLAGS.HIDDEN_LD in x['flags']])
-        num_hidden_loads_2 = len([x for x in kernel_zen_2 if INSTR_FLAGS.HIDDEN_LD in x['flags']])
-        num_hidden_loads_3 = len([x for x in kernel_zen_3 if INSTR_FLAGS.HIDDEN_LD in x['flags']])
+        num_hidden_loads = len([x for x in kernel_hld if INSTR_FLAGS.HIDDEN_LD in x['flags']])
+        num_hidden_loads_2 = len([x for x in kernel_hld_2 if INSTR_FLAGS.HIDDEN_LD in x['flags']])
+        num_hidden_loads_3 = len([x for x in kernel_hld_3 if INSTR_FLAGS.HIDDEN_LD in x['flags']])
         self.assertEqual(num_hidden_loads, 1)
         self.assertEqual(num_hidden_loads_2, 0)
         self.assertEqual(num_hidden_loads_3, 1)
@@ -322,7 +325,6 @@ class TestSemanticTools(unittest.TestCase):
         self.assertEqual(self.machine_model_csx.get_data_ports(), data_ports_csx)
 
         self.assertFalse(self.machine_model_tx2.has_hidden_loads())
-        self.assertTrue(self.machine_model_zen.has_hidden_loads())
 
         self.assertEqual(MachineModel.get_isa_for_arch('CSX'), 'x86')
         self.assertEqual(MachineModel.get_isa_for_arch('VuLcAn'), 'aarch64')