diff --git a/subx/050_write.subx b/subx/050_write.subx
index a058a529..78fdecdd 100644
--- a/subx/050_write.subx
+++ b/subx/050_write.subx
@@ -6,8 +6,8 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
-  # syscall(exit, 0) -- can't test these functions just yet
+# main:
+  # syscall(exit, 0) -- can't test _write just yet
   bb/copy-to-EBX  0/imm32
   b8/copy-to-EAX  1/imm32
   cd/syscall  0x80/imm8
diff --git a/subx/052kernel_string_equal.subx b/subx/052kernel_string_equal.subx
index b22ad48f..6dabd032 100644
--- a/subx/052kernel_string_equal.subx
+++ b/subx/052kernel_string_equal.subx
@@ -20,7 +20,7 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
   # exit(Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
diff --git a/subx/054string_equal.subx b/subx/054string_equal.subx
index e132d0d2..fae2514b 100644
--- a/subx/054string_equal.subx
+++ b/subx/054string_equal.subx
@@ -6,7 +6,7 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
   # exit(Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
diff --git a/subx/055trace.subx b/subx/055trace.subx
index 27d5efc8..3482eb44 100644
--- a/subx/055trace.subx
+++ b/subx/055trace.subx
@@ -43,7 +43,7 @@ _test-trace-stream:
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
   # syscall(exit, Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
diff --git a/subx/056write.subx b/subx/056write.subx
index 5d3be45e..e751091d 100644
--- a/subx/056write.subx
+++ b/subx/056write.subx
@@ -21,7 +21,7 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
   # syscall(exit, Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
diff --git a/subx/057stop.subx b/subx/057stop.subx
index ea122aba..cc4788f0 100644
--- a/subx/057stop.subx
+++ b/subx/057stop.subx
@@ -31,9 +31,9 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
-#?   e8/call  test-stop-skips-returns-on-exit/disp32
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
+#?   e8/call  test-stop-skips-returns-on-exit/disp32
   # syscall(exit, Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
   b8/copy-to-EAX  1/imm32
diff --git a/subx/058read.subx b/subx/058read.subx
index 3b7bc792..ce4ac8b6 100644
--- a/subx/058read.subx
+++ b/subx/058read.subx
@@ -46,7 +46,7 @@
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
   # syscall(exit, Num-test-failures)
   8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           3/r32/EBX   Num-test-failures/disp32          # copy *Num-test-failures to EBX
diff --git a/subx/059read-byte.subx b/subx/059read-byte.subx
index e871fbb4..92393251 100644
--- a/subx/059read-byte.subx
+++ b/subx/059read-byte.subx
@@ -32,7 +32,7 @@ Stdin:
 # op          subop               mod             rm32          base        index         scale       r32
 # 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
-# main:  (manual test if this is the last file loaded)
+# main:
   e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
 #?   e8/call  test-read-byte-multiple/disp32
   # syscall(exit, Num-test-failures)