diff --git a/src/internal/runtime/atomic/atomic_386.s b/src/internal/runtime/atomic/atomic_386.s
index 58a56e63c073aa..c961e4db114c18 100644
--- a/src/internal/runtime/atomic/atomic_386.s
+++ b/src/internal/runtime/atomic/atomic_386.s
@@ -12,6 +12,7 @@
 //		return 1;
 //	}else
 //		return 0;
+//  }
 TEXT ·Cas(SB), NOSPLIT, $0-13
 	MOVL	ptr+0(FP), BX
 	MOVL	old+4(FP), AX
diff --git a/src/internal/runtime/atomic/atomic_amd64.s b/src/internal/runtime/atomic/atomic_amd64.s
index d6dc7a32d668fe..c79bf9d2b9825a 100644
--- a/src/internal/runtime/atomic/atomic_amd64.s
+++ b/src/internal/runtime/atomic/atomic_amd64.s
@@ -26,6 +26,7 @@ TEXT ·Loadint64(SB), NOSPLIT, $0-16
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB),NOSPLIT,$0-17
 	MOVQ	ptr+0(FP), BX
 	MOVL	old+8(FP), AX
@@ -59,6 +60,7 @@ TEXT ·Cas64(SB), NOSPLIT, $0-25
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Casp1(SB), NOSPLIT, $0-25
 	MOVQ	ptr+0(FP), BX
 	MOVQ	old+8(FP), AX
diff --git a/src/internal/runtime/atomic/atomic_arm.s b/src/internal/runtime/atomic/atomic_arm.s
index 85cee049af9993..25eb48391aed2d 100644
--- a/src/internal/runtime/atomic/atomic_arm.s
+++ b/src/internal/runtime/atomic/atomic_arm.s
@@ -13,6 +13,7 @@
 //		return 1;
 //	}else
 //		return 0;
+//  }
 //
 // To implement ·cas in sys_$GOOS_arm.s
 // using the native instructions, use:
diff --git a/src/internal/runtime/atomic/atomic_arm64.s b/src/internal/runtime/atomic/atomic_arm64.s
index 09f3b53c5cdd18..38d5a41abbf528 100644
--- a/src/internal/runtime/atomic/atomic_arm64.s
+++ b/src/internal/runtime/atomic/atomic_arm64.s
@@ -199,6 +199,7 @@ load_store_loop:
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB), NOSPLIT, $0-17
 	MOVD	ptr+0(FP), R0
 	MOVW	old+8(FP), R1
diff --git a/src/internal/runtime/atomic/atomic_loong64.s b/src/internal/runtime/atomic/atomic_loong64.s
index 5222b77e77fa77..0433a7549ca559 100644
--- a/src/internal/runtime/atomic/atomic_loong64.s
+++ b/src/internal/runtime/atomic/atomic_loong64.s
@@ -12,6 +12,7 @@
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB), NOSPLIT, $0-17
 	MOVV	ptr+0(FP), R4
 	MOVW	old+8(FP), R5
@@ -126,6 +127,7 @@ TEXT ·Xaddint64(SB), NOSPLIT, $0-24
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Casp1(SB), NOSPLIT, $0-25
 	JMP	·Cas64(SB)
 
diff --git a/src/internal/runtime/atomic/atomic_mips64x.s b/src/internal/runtime/atomic/atomic_mips64x.s
index ce0b5c2f73c539..4d5075e36620e9 100644
--- a/src/internal/runtime/atomic/atomic_mips64x.s
+++ b/src/internal/runtime/atomic/atomic_mips64x.s
@@ -15,6 +15,7 @@
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB), NOSPLIT, $0-17
 	MOVV	ptr+0(FP), R1
 	MOVW	old+8(FP), R2
@@ -110,6 +111,7 @@ TEXT ·Xaddint64(SB), NOSPLIT, $0-24
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Casp1(SB), NOSPLIT, $0-25
 	JMP ·Cas64(SB)
 
diff --git a/src/internal/runtime/atomic/atomic_mipsx.s b/src/internal/runtime/atomic/atomic_mipsx.s
index b725016f7bc114..8436b62f1bf58c 100644
--- a/src/internal/runtime/atomic/atomic_mipsx.s
+++ b/src/internal/runtime/atomic/atomic_mipsx.s
@@ -13,6 +13,7 @@
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB),NOSPLIT,$0-13
 	MOVW	ptr+0(FP), R1
 	MOVW	old+4(FP), R2
diff --git a/src/internal/runtime/atomic/atomic_ppc64x.s b/src/internal/runtime/atomic/atomic_ppc64x.s
index 184a30c970c0c7..a7d804d956093d 100644
--- a/src/internal/runtime/atomic/atomic_ppc64x.s
+++ b/src/internal/runtime/atomic/atomic_ppc64x.s
@@ -85,6 +85,7 @@ TEXT ·LoadAcq64(SB),NOSPLIT|NOFRAME,$-8-16
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Cas(SB), NOSPLIT, $0-17
 	MOVD	ptr+0(FP), R3
 	MOVWZ	old+8(FP), R4
@@ -203,6 +204,7 @@ TEXT ·Xaddint64(SB), NOSPLIT, $0-24
 //		return 1;
 //	} else
 //		return 0;
+//  }
 TEXT ·Casp1(SB), NOSPLIT, $0-25
 	BR ·Cas64(SB)
 
diff --git a/src/internal/runtime/atomic/sys_nonlinux_arm.s b/src/internal/runtime/atomic/sys_nonlinux_arm.s
index b55bf908a26056..061b7852432c55 100644
--- a/src/internal/runtime/atomic/sys_nonlinux_arm.s
+++ b/src/internal/runtime/atomic/sys_nonlinux_arm.s
@@ -14,6 +14,7 @@
 //		return 1;
 //	}else
 //		return 0;
+//  }
 TEXT	·Cas(SB),NOSPLIT,$0
 	JMP	·armcas(SB)