diff --git a/src/vendorcode/amd/agesa/f10/gcccar.inc b/src/vendorcode/amd/agesa/f10/gcccar.inc
index 61a8d3ee71..11f50dbae6 100644
--- a/src/vendorcode/amd/agesa/f10/gcccar.inc
+++ b/src/vendorcode/amd/agesa/f10/gcccar.inc
@@ -827,7 +827,7 @@ fam14_disable_stack_hook_exit:
 
     LOCAL   node_core_f14_exit
 
-    cmp     $0x-1, %si                      # Has node/core already been discovered?
+    cmp     $-1, %si                    # Has node/core already been discovered?
     jnz     node_core_f14_exit          # Br if yes
 
     AMD_CPUID   $CPUID_MODEL
diff --git a/src/vendorcode/amd/agesa/f12/gcccar.inc b/src/vendorcode/amd/agesa/f12/gcccar.inc
index d7da81d1fc..22564cbdcc 100644
--- a/src/vendorcode/amd/agesa/f12/gcccar.inc
+++ b/src/vendorcode/amd/agesa/f12/gcccar.inc
@@ -821,7 +821,7 @@ fam14_disable_stack_hook_exit:
 
     LOCAL   node_core_f14_exit
 
-    cmp     $0x-1, %si                      # Has node/core already been discovered?
+    cmp     $-1, %si                    # Has node/core already been discovered?
     jnz     node_core_f14_exit          # Br if yes
 
     AMD_CPUID   $CPUID_MODEL
diff --git a/src/vendorcode/amd/agesa/f14/gcccar.inc b/src/vendorcode/amd/agesa/f14/gcccar.inc
index 703734479b..40e0e31ce7 100644
--- a/src/vendorcode/amd/agesa/f14/gcccar.inc
+++ b/src/vendorcode/amd/agesa/f14/gcccar.inc
@@ -835,7 +835,7 @@ fam14_disable_stack_hook_exit:
 
     LOCAL   node_core_f14_exit
 
-    cmp     $0x-1, %si                      # Has node/core already been discovered?
+    cmp     $-1, %si                    # Has node/core already been discovered?
     jnz     node_core_f14_exit          # Br if yes
 
     AMD_CPUID   $CPUID_MODEL
diff --git a/src/vendorcode/amd/agesa/f15/gcccar.inc b/src/vendorcode/amd/agesa/f15/gcccar.inc
index b20c77e575..c88709c7c4 100644
--- a/src/vendorcode/amd/agesa/f15/gcccar.inc
+++ b/src/vendorcode/amd/agesa/f15/gcccar.inc
@@ -842,7 +842,7 @@ fam14_disable_stack_hook_exit:
 
     LOCAL   node_core_f14_exit
 
-    cmp     $0x-1, %si                      # Has node/core already been discovered?
+    cmp     $-1, %si                    # Has node/core already been discovered?
     jnz     node_core_f14_exit          # Br if yes
 
     AMD_CPUID   $CPUID_MODEL
diff --git a/src/vendorcode/amd/agesa/f15tn/gcccar.inc b/src/vendorcode/amd/agesa/f15tn/gcccar.inc
index c76ad163d6..d6dd49aff0 100644
--- a/src/vendorcode/amd/agesa/f15tn/gcccar.inc
+++ b/src/vendorcode/amd/agesa/f15tn/gcccar.inc
@@ -875,7 +875,7 @@ fam14_disable_stack_hook_exit:
 
     LOCAL   node_core_f14_exit
 
-    cmp     $0x-1, %si                      # Has node/core already been discovered?
+    cmp     $-1, %si                    # Has node/core already been discovered?
     jnz     node_core_f14_exit          # Br if yes
 
     AMD_CPUID   $CPUID_MODEL