diff --git a/src/cmd/internal/obj/arm64/asm7.go b/src/cmd/internal/obj/arm64/asm7.go
index 68f0921d4d9aa4..f4111f4f5cd389 100644
--- a/src/cmd/internal/obj/arm64/asm7.go
+++ b/src/cmd/internal/obj/arm64/asm7.go
@@ -1184,7 +1184,7 @@ func (c *ctxt7) addpool128(p *obj.Prog, al, ah *obj.Addr) {
 	q := c.newprog()
 	q.As = ADWORD
 	q.To.Type = obj.TYPE_CONST
-	q.To.Offset = al.Offset
+	q.To.Offset = al.Offset // q.Pc is lower than t.Pc, so al.Offset is stored in q.
 
 	t := c.newprog()
 	t.As = ADWORD
diff --git a/src/cmd/internal/obj/arm64/doc.go b/src/cmd/internal/obj/arm64/doc.go
index 14f0f4c616f227..1234a3e8187eca 100644
--- a/src/cmd/internal/obj/arm64/doc.go
+++ b/src/cmd/internal/obj/arm64/doc.go
@@ -89,12 +89,12 @@ In the following example, PCALIGN at the entry of the function Add will align it
 7. Move large constants to vector registers.
 
 Go asm uses VMOVQ/VMOVD/VMOVS to move 128-bit, 64-bit and 32-bit constants into vector registers, respectively.
-And for a 128-bit interger, it take two 64-bit operands, for the high and low parts separately.
+And for a 128-bit interger, it take two 64-bit operands, for the low and high parts separately.
 
   Examples:
     VMOVS $0x11223344, V0
     VMOVD $0x1122334455667788, V1
-    VMOVQ $0x1122334455667788, $8877665544332211, V2   // V2=0x11223344556677888877665544332211
+    VMOVQ $0x1122334455667788, $0x99aabbccddeeff00, V2   // V2=0x99aabbccddeeff001122334455667788
 
 8. Move an optionally-shifted 16-bit immediate value to a register.