diff --git a/compiler/m68k/cpubase.pas b/compiler/m68k/cpubase.pas
index 0d777f32ea..4f40c6b987 100644
--- a/compiler/m68k/cpubase.pas
+++ b/compiler/m68k/cpubase.pas
@@ -67,7 +67,7 @@ unit cpubase;
          { mc64040 instructions }
          a_move16,
          { coldfire v4 instructions }
-         a_mov3q,a_mvz,a_mvs,a_sats,
+         a_mov3q,a_mvz,a_mvs,a_sats,a_byterev,a_ff1,
          { fpu processor instructions - directly supported only. }
          { ieee aware and misc. condition codes not supported   }
          a_fabs,a_fadd,
diff --git a/compiler/m68k/cpuinfo.pas b/compiler/m68k/cpuinfo.pas
index 3517317f05..4ca68ed8ad 100644
--- a/compiler/m68k/cpuinfo.pas
+++ b/compiler/m68k/cpuinfo.pas
@@ -108,7 +108,8 @@ type
       CPUM68K_HAS_CAS,       { CPU supports the CAS instruction                          }
       CPUM68K_HAS_TAS,       { CPU supports the TAS instruction                          }
       CPUM68K_HAS_BRAL,      { CPU supports the BRA.L/Bcc.L instructions                 }
-      CPUM68K_HAS_ROLROR     { CPU supports the ROL/ROR and ROXL/ROXR instructions       }
+      CPUM68K_HAS_ROLROR,    { CPU supports the ROL/ROR and ROXL/ROXR instructions       }
+      CPUM68K_HAS_BYTEREV    { CPU supports the BYTEREV instruction                      }
      );
 
 const
@@ -118,9 +119,9 @@ const
       { cpu_68020    } [CPUM68K_HAS_DBRA,CPUM68K_HAS_CAS,CPUM68K_HAS_TAS,CPUM68K_HAS_BRAL,CPUM68K_HAS_ROLROR],
       { cpu_68040    } [CPUM68K_HAS_DBRA,CPUM68K_HAS_CAS,CPUM68K_HAS_TAS,CPUM68K_HAS_BRAL,CPUM68K_HAS_ROLROR],
       { cpu_isaa     } [],
-      { cpu_isaap    } [CPUM68K_HAS_BRAL],
+      { cpu_isaap    } [CPUM68K_HAS_BRAL,CPUM68K_HAS_BYTEREV],
       { cpu_isab     } [CPUM68K_HAS_TAS,CPUM68K_HAS_BRAL],
-      { cpu_isac     } [CPUM68K_HAS_TAS]
+      { cpu_isac     } [CPUM68K_HAS_TAS,CPUM68K_HAS_BYTEREV]
     );
 
   { all CPUs commonly called "coldfire" }
diff --git a/compiler/m68k/itcpugas.pas b/compiler/m68k/itcpugas.pas
index cfe77aae22..4e134a3e70 100644
--- a/compiler/m68k/itcpugas.pas
+++ b/compiler/m68k/itcpugas.pas
@@ -61,7 +61,7 @@ interface
          { mc64040 instructions }
          'move16',
          { coldfire v4 instructions }
-         'mov3q','mvz','mvs','sats',
+         'mov3q','mvz','mvs','sats','byterev','ff1',
          { fpu processor instructions - directly supported only. }
          { ieee aware and misc. condition codes not supported   }
          'fabs','fadd',