diff --git a/bfd/cpu-arm.c b/bfd/cpu-arm.c
index 8d6977aee47fa11514298d43f027523e152dabbc..76a8f9a4a9a9f02365c4fb77806eca4c1dee379a 100644
--- a/bfd/cpu-arm.c
+++ b/bfd/cpu-arm.c
@@ -150,6 +150,8 @@ processors[] =
   { bfd_mach_arm_8,	  "cortex-a76"	    },
   { bfd_mach_arm_8,	  "cortex-a76ae"    },
   { bfd_mach_arm_8,	  "cortex-a77"	    },
+  { bfd_mach_arm_8,	  "cortex-a78"	    },
+  { bfd_mach_arm_8,	  "cortex-a78ae"    },
   { bfd_mach_arm_6SM,	  "cortex-m0"	    },
   { bfd_mach_arm_6SM,	  "cortex-m0plus"   },
   { bfd_mach_arm_6SM,	  "cortex-m1"	    },
diff --git a/gas/NEWS b/gas/NEWS
index 12f5f4baae7be46b92c43cfce64c502314367f0f..8394f7466ca25bcbd8c39d04604627f57bf73a5b 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -1,4 +1,6 @@
 -*- text -*-
+* Add support for Cortex-A78 and Cortex-A78AE for ARM.
+
 * Add support for Cortex-A78 and Cortex-A78AE for AArch64.
 
 * Add support for ETMv4 (Embedded Trace Macrocell) system registers for
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 7d154e75929ceacfb242dfebc9a3e7a88943316f..d5a0811c4fdc72a1e5c5afe275a570e8e267f227 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -31540,6 +31540,12 @@ static const struct arm_cpu_option_table arm_cpus[] =
   ARM_CPU_OPT ("cortex-a77",    "Cortex-A77",	       ARM_ARCH_V8_2A,
 	       ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
 	       FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
+  ARM_CPU_OPT ("cortex-a78",   "Cortex-A78",	       ARM_ARCH_V8_2A,
+	       ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST | ARM_EXT2_SB),
+	       FPU_ARCH_DOTPROD_NEON_VFP_ARMV8),
+  ARM_CPU_OPT ("cortex-a78ae",   "Cortex-A78AE",	   ARM_ARCH_V8_2A,
+	       ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST | ARM_EXT2_SB),
+	       FPU_ARCH_DOTPROD_NEON_VFP_ARMV8),
   ARM_CPU_OPT ("ares",    "Ares",	       ARM_ARCH_V8_2A,
 	       ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
 	       FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD),
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index f8ed8bb904e61b08e91d4ba6ed954c6ddb9370cf..a3d6a5d3af07a2c746e9e335320de508db44a11a 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -131,6 +131,8 @@ recognized:
 @code{cortex-a76},
 @code{cortex-a76ae},
 @code{cortex-a77},
+@code{cortex-a78},
+@code{cortex-a78ae},
 @code{ares},
 @code{cortex-r4},
 @code{cortex-r4f},
diff --git a/gas/testsuite/gas/arm/cpu-cortex-a78.d b/gas/testsuite/gas/arm/cpu-cortex-a78.d
new file mode 100644
index 0000000000000000000000000000000000000000..47b54425958f9793fe8d8051fa661f72a1afa4f6
--- /dev/null
+++ b/gas/testsuite/gas/arm/cpu-cortex-a78.d
@@ -0,0 +1,6 @@
+# name: Assemble and dump for cortex-a78 CPU
+# source: nop-asm.s
+# as: -mcpu=cortex-a78
+# objdump: -d -mcortex-a78
+
+#...
diff --git a/gas/testsuite/gas/arm/cpu-cortex-a78ae.d b/gas/testsuite/gas/arm/cpu-cortex-a78ae.d
new file mode 100644
index 0000000000000000000000000000000000000000..00a769e1220d18297e55100ef9e084b2197c73e6
--- /dev/null
+++ b/gas/testsuite/gas/arm/cpu-cortex-a78ae.d
@@ -0,0 +1,6 @@
+# name: Assemble and dump for cortex-a78ae CPU
+# source: nop-asm.s
+# as: -mcpu=cortex-a78ae
+# objdump: -d -mcortex-a78ae
+
+#...