From 13ef425825cef5fa30f7eb68688b6d114ecbe554 Mon Sep 17 00:00:00 2001
From: "Kartik K. Agaram" <vc@akkartik.com>
Date: Tue, 20 Jul 2021 07:30:59 -0700
Subject: .

---
 linux/101_write.subx              |   4 +-
 linux/102test.subx                |   2 +-
 linux/103kernel-string-equal.subx |   2 +-
 linux/104new-segment.subx         |   2 +-
 linux/105string-equal.subx        |   2 +-
 linux/107trace.subx               |   2 +-
 linux/110stop.subx                |   2 +-
 linux/110stop.subx.               | 231 --------------------------------------
 linux/110stop.subx.0              | 206 ---------------------------------
 linux/111read.subx                |   2 +-
 linux/112read-byte.subx           |   2 +-
 linux/113write-stream.subx        |   6 +-
 linux/115write-byte.subx          |   2 +-
 linux/118parse-hex-int.subx       |   2 +-
 linux/119error-byte.subx          |   2 +-
 linux/120allocate.subx            |   8 +-
 linux/121new-stream.subx          |   2 +-
 linux/122read-line.subx           |   4 +-
 linux/123slice.subx               |   4 +-
 linux/126write-int-decimal.subx   |   4 +-
 linux/131table.subx               |  14 +--
 linux/132slurp.subx               |   2 +-
 linux/202write-int.subx           |   2 +-
 linux/203stack.subx               |   6 +-
 linux/apps/ex11.subx              |   2 +-
 linux/apps/ex5.subx               |   2 +-
 linux/assort.subx                 |   4 +-
 linux/braces.subx                 |   4 +-
 linux/calls.subx                  |  20 ++--
 linux/dquotes.subx                |   4 +-
 linux/hex.subx                    |   4 +-
 linux/labels_baremetal.subx       |   8 +-
 linux/mu.subx                     |   6 +-
 linux/pack.subx                   |   4 +-
 linux/random.subx                 |   6 +-
 linux/sigils.subx                 |  20 ++--
 linux/survey_baremetal.subx       |   8 +-
 linux/survey_elf.subx             |  14 +--
 linux/tests.subx                  |   4 +-
 39 files changed, 94 insertions(+), 531 deletions(-)
 delete mode 100644 linux/110stop.subx.
 delete mode 100644 linux/110stop.subx.0

diff --git a/linux/101_write.subx b/linux/101_write.subx
index 2567f444..e1d64756 100644
--- a/linux/101_write.subx
+++ b/linux/101_write.subx
@@ -18,7 +18,7 @@ _write:  # fd: int, s: (addr array byte)
     51/push-ecx
     52/push-edx
     53/push-ebx
-    # syscall(write, fd, (data) s+4, (size) *s)
+    # syscall_write(fd, (data) s+4, (size) *s)
     # . ebx = fd
     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           3/r32/ebx   8/disp8         .                 # copy *(ebp+8) to ebx
     # . var data/ecx: (addr byte) = s+4
@@ -45,7 +45,7 @@ $_write:end:
 
 $_write:abort:
     # can't write a message here for risk of an infinite loop, so we'll use a special exit code instead
-    # . syscall(exit, 255)
+    # . syscall_exit(255)
     bb/copy-to-ebx  0xff/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/102test.subx b/linux/102test.subx
index 04fbea24..90207e29 100644
--- a/linux/102test.subx
+++ b/linux/102test.subx
@@ -15,7 +15,7 @@ Entry:  # manual test
     e8/call  check-ints-equal/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
     e8/call  syscall_exit/disp32
 
diff --git a/linux/103kernel-string-equal.subx b/linux/103kernel-string-equal.subx
index 842bf671..29dbb6e2 100644
--- a/linux/103kernel-string-equal.subx
+++ b/linux/103kernel-string-equal.subx
@@ -24,7 +24,7 @@
 
 Entry:  # run all tests
     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)
+    # 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
     e8/call  syscall_exit/disp32
 
diff --git a/linux/104new-segment.subx b/linux/104new-segment.subx
index 4c249abe..723e1afb 100644
--- a/linux/104new-segment.subx
+++ b/linux/104new-segment.subx
@@ -33,7 +33,7 @@ Entry:   # manual test
     8b/copy                         0/mod/indirect  1/rm32/ecx    .           .             .           0/r32/eax   .               .                 # copy *ecx to eax
     # write to *eax to check that we have access to the newly-allocated segment
     c7          0/subop/copy        0/mod/direct    0/rm32/eax    .           .             .           .           .               0x34/imm32        # copy to *eax
-    # syscall(exit, eax)
+    # syscall_exit(eax)
     89/copy                         3/mod/direct    3/rm32/ebx    .           .             .           0/r32/eax   .               .                 # copy eax to ebx
     e8/call  syscall_exit/disp32
 
diff --git a/linux/105string-equal.subx b/linux/105string-equal.subx
index d3f11402..ae753855 100644
--- a/linux/105string-equal.subx
+++ b/linux/105string-equal.subx
@@ -8,7 +8,7 @@
 Entry:  # run all tests
 #?     e8/call test-compare-equal-strings/disp32
     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)
+    # 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
     e8/call  syscall_exit/disp32
 
diff --git a/linux/107trace.subx b/linux/107trace.subx
index 457b77a0..b94746a5 100644
--- a/linux/107trace.subx
+++ b/linux/107trace.subx
@@ -947,7 +947,7 @@ $_append-4:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/110stop.subx b/linux/110stop.subx
index f6cb6fae..6b81e526 100644
--- a/linux/110stop.subx
+++ b/linux/110stop.subx
@@ -110,7 +110,7 @@ $stop:end1:
     # never gets here
     c3/return  # doesn't return to caller
 $stop:real:
-    # . syscall(exit, value)
+    # . syscall_exit(value)
     8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/esp  4/index/none  .           3/r32/ebx   8/disp8         .                 # copy *(esp+8) to ebx
     e8/call  syscall_exit/disp32
 $stop:end2:
diff --git a/linux/110stop.subx. b/linux/110stop.subx.
deleted file mode 100644
index 965d7ae5..00000000
--- a/linux/110stop.subx.
+++ /dev/null
@@ -1,231 +0,0 @@
-# stop: dependency-injected wrapper around the exit() syscall
-#
-# We'd like to be able to write tests for functions that call exit(), and to
-# make assertions about whether they exit() or not in a given situation. To
-# achieve this we'll call exit() via a smarter wrapper called 'stop'.
-#
-# In the context of a test, calling a function X that calls 'stop' (directly
-# or through further intervening calls) will unwind the stack until X returns,
-# so that we can say check any further assertions after the execution of X. To
-# achieve this end, we'll pass the return address of X as a 'target' argument
-# into X, plumbing it through to 'stop'. When 'stop' gets a non-null target it
-# unwinds the stack until the target. If it gets a null target it calls
-# exit().
-#
-# We'd also like to get the exit status out of 'stop', so we'll combine the
-# input target with an output status parameter into a type called 'exit-descriptor'.
-#
-# So the exit-descriptor looks like this:
-#   target : address  # return address for 'stop' to unwind to
-#   value : int  # exit status stop was called with
-#
-# 'stop' thus takes two parameters: an exit-descriptor and the exit status.
-#
-# 'stop' won't bother cleaning up any other processor state besides the stack,
-# such as registers. Only ESP will have a well-defined value after 'stop'
-# returns. (This is a poor man's setjmp/longjmp, if you know what that is.)
-#
-# Before you can call any function that may call 'stop', you need to pass in an
-# exit-descriptor to it. The value will initially be empty. What should the
-# target be? The simplest way to compute the target requires violating the
-# usual pattern of function calls.
-#
-# Normally function calls follow this pattern:
-#   * push all args on the stack
-#   * call
-#   * increment ESP to pop all args off the stack
-#
-# When passing in a new exit descriptor, the process of calling looks like this:
-#   * allocate space for the exit descriptor on the stack
-#   * assign the exit descriptor to some register 'r'
-#   ... some time later ...
-#   * push all args on the stack, including register 'r'
-#   * save ESP to *r (the target of the exit descriptor)
-#
-# The value saved to the target isn't quite right, so stop needs to adjust its
-# exit-descriptor argument 'ed':
-#   copy *ed to ESP
-#   decrement ESP by 4 (from last arg to return address)
-#   ret
-#
-# Performing the decrement inside 'stop' reduces our overhead for creating exit
-# descriptors to a single 2-byte instruction.
-# We only adjust the target if we ever actually call 'stop'.
-#
-# There's no good way to abstract away the target computation, since it depends
-# on the number of args a function is called with.
-
-== code
-#   instruction                     effective address                                                   register    displacement    immediate
-# . 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
-
-# Configure an exit-descriptor for a call pushing 'nbytes' bytes of args to
-# the stack.
-# Ugly that we need to know the size of args, but so it goes.
-tailor-exit-descriptor:  # ed : (address exit-descriptor), nbytes : int -> <void>
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # . save registers
-    50/push-EAX
-    51/push-ECX
-    # EAX = nbytes
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .             .           0/r32/EAX   0xc/disp8       .                 # copy *(EBP+12) to EAX
-    # Let X be the value of ESP in the caller, before the call to tailor-exit-descriptor.
-    # The return address for a call in the caller's body will be at:
-    #   X-8 if the caller takes 4 bytes of args for the exit-descriptor (add 4 bytes for the return address)
-    #   X-12 if the caller takes 8 bytes of args
-    #   ..and so on
-    # That's the value we need to return: X-nbytes-4
-    #
-    # However, we also need to account for the perturbance to ESP caused by the
-    # call to tailor-exit-descriptor. It pushes 8 bytes of args followed by 4
-    # bytes for the return address and 4 bytes to push EBP above.
-    # So EBP at this point is X-16.
-    #
-    # So the return address for the next call in the caller is:
-    #   EBP+8 if the caller takes 4 bytes of args
-    #   EBP+4 if the caller takes 8 bytes of args
-    #   EBP if the caller takes 12 bytes of args
-    #   EBP-4 if the caller takes 16 bytes of args
-    #   ..and so on
-    # That's EBP+12-nbytes.
-    # option 1: 6 + 3 bytes
-#?     2d/subtract                     3/mod/direct    0/rm32/EAX    .           .             .           .           .               8/imm32           # subtract from EAX
-#?     8d/copy-address                 0/mod/indirect  4/rm32/sib    5/base/EBP  0/index/EAX   .           0/r32/EAX   .               .                 # copy EBP+EAX to EAX
-    # option 2: 2 + 4 bytes
-    f7          3/subop/negate      3/mod/direct    0/rm32/EAX    .           .             .           .           .               .                 # negate EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    5/base/EBP  0/index/EAX   .           0/r32/EAX   0xc/disp8         .               # copy EBP+EAX+12 to EAX
-    # copy EAX to ed->target
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .             .           1/r32/ECX   8/disp8         .                 # copy *(EBP+8) to ECX
-    89/copy                         0/mod/indirect  1/rm32/ECX    .           .             .           0/r32/EAX   .               .                 # copy EAX to *ECX
-    # initialize ed->value
-    c7          0/subop/copy        1/mod/*+disp8   1/rm32/ECX    .           .             .           .           4/disp8         0/imm32           # copy to *(ECX+4)
-$tailor-exit-descriptor:end:
-    # . restore registers
-    59/pop-to-ECX
-    58/pop-to-EAX
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-stop:  # ed : (address exit-descriptor), value : int
-    # no prolog; one way or another, we're going to clobber registers
-    # EAX = ed
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           0/r32/EAX   4/disp8         .                 # copy *(ESP+4) to EAX
-    # if (ed->target == 0) really exit
-    81          7/subop/compare     0/mod/indirect  0/rm32/EAX    .           .             .           .           .               0/imm32           # compare *EAX
-    75/jump-if-not-equal  $stop:fake/disp8
-    # . syscall(exit, value)
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           3/r32/EBX   8/disp8         .                 # copy *(ESP+8) to EBX
-    b8/copy-to-EAX  1/imm32/exit
-    cd/syscall  0x80/imm8
-$stop:fake:
-    # otherwise:
-    # ed->value = value+1
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           1/r32/ECX   8/disp8         .                 # copy *(ESP+8) to ECX
-    41/increment-ECX
-    89/copy                         1/mod/*+disp8   0/rm32/EAX    .           .             .           1/r32/ECX   4/disp8         .                 # copy ECX to *(EAX+4)
-    # perform a non-local jump to ed->target
-    8b/copy                         0/mod/indirect  0/rm32/EAX    .           .             .           4/r32/ESP   .               .                 # copy *EAX to ESP
-$stop:end:
-    c3/return  # doesn't return to caller
-
-test-stop-skips-returns-on-exit:
-    # This looks like the standard prolog, but is here for different reasons.
-    # A function calling 'stop' can't rely on EBP persisting past the call.
-    #
-    # Use EBP here as a stable base to refer to locals and arguments from in the
-    # presence of push/pop/call instructions.
-    # *Don't* use EBP as a way to restore ESP.
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # Make room for an exit descriptor on the stack. That's almost always the
-    # right place for it, available only as long as it's legal to use. Once this
-    # containing function returns we'll need a new exit descriptor.
-    # var ed/EAX : (address exit-descriptor)
-    81          5/subop/subtract    3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # subtract from ESP
-    89/copy                         3/mod/direct    0/rm32/EAX    .           .             .           4/r32/ESP   .               .                 # copy ESP to EAX
-    # Size the exit-descriptor precisely for the next call below, to _test-stop-1.
-    # tailor-exit-descriptor(ed, 4)
-    # . . push args
-    68/push  4/imm32/nbytes-of-args-for-_test-stop-1
-    50/push-EAX
-    # . . call
-    e8/call  tailor-exit-descriptor/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # call/ed(ed) _test-stop-1(ed)
-    # w/exit(ed) _test-stop-1(ed)
-    # . _test-stop-1(ed)
-    # . . push args
-    50/push-EAX
-    # . . call
-    e8/call  _test-stop-1/disp32
-    # registers except ESP may be clobbered at this point
-    # restore args
-    58/pop-to-EAX
-    # check that _test-stop-1 tried to call exit(1)
-    # check-ints-equal(ed->value, 2, msg)  # i.e. stop was called with value 1
-    # . . push args
-    68/push  "F - test-stop-skips-returns-on-exit"/imm32
-    68/push  2/imm32
-    # . . push ed->value
-    ff          6/subop/push        1/mod/*+disp8   0/rm32/EAX    .           .             .           .           4/disp8         .                 # push *(EAX+4)
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . epilog
-    # don't restore ESP from EBP; manually reclaim locals
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    5d/pop-to-EBP
-    c3/return
-
-_test-stop-1:  # ed : (address exit-descriptor)
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # _test-stop-2(ed)
-    # . . push args
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
-    # . . call
-    e8/call  _test-stop-2/disp32
-    # should never get past this point
-$_test-stop-1:dead-end:
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # signal test failed: check-ints-equal(1, 0, msg)
-    # . . push args
-    68/push  "F - test-stop-skips-returns-on-exit"/imm32
-    68/push  0/imm32
-    68/push  1/imm32
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-_test-stop-2:  # ed : (address exit-descriptor)
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # . stop(ed, 1)
-    # . . push args
-    68/push  1/imm32
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
-    # . . call
-    e8/call  stop/disp32
-    # should never get past this point
-$_test-stop-2:dead-end:
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-# . . vim:nowrap:textwidth=0
diff --git a/linux/110stop.subx.0 b/linux/110stop.subx.0
deleted file mode 100644
index dbe8a663..00000000
--- a/linux/110stop.subx.0
+++ /dev/null
@@ -1,206 +0,0 @@
-# stop: dependency-injected wrapper around the exit() syscall
-#
-# We'd like to be able to write tests for functions that call exit(), and to
-# make assertions about whether they exit() or not in a given situation. To
-# achieve this we'll call exit() via a smarter wrapper called 'stop'.
-#
-# In the context of a test, calling a function X that calls 'stop' (directly
-# or through further intervening calls) will unwind the stack until X returns,
-# so that we can say check any further assertions after the execution of X. To
-# achieve this end, we'll pass the return address of X as a 'target' argument
-# into X, plumbing it through to 'stop'. When 'stop' gets a non-null target it
-# unwinds the stack until the target. If it gets a null target it calls
-# exit().
-#
-# We'd also like to get the exit status out of 'stop', so we'll combine the
-# input target with an output status parameter into a type called 'exit-descriptor'.
-#
-# So the exit-descriptor looks like this:
-#   target : address  # return address for 'stop' to unwind to
-#   value : int  # exit status stop was called with
-#
-# 'stop' thus takes two parameters: an exit-descriptor and the exit status.
-#
-# 'stop' won't bother cleaning up any other processor state besides the stack,
-# such as registers. Only ESP will have a well-defined value after 'stop'
-# returns. (This is a poor man's setjmp/longjmp, if you know what that is.)
-#
-# Before you can call any function that may call 'stop', you need to pass in an
-# exit-descriptor to it. To create an exit-descriptor use 'tailor-exit-descriptor'
-# below. It's not the most pleasant abstraction in the world.
-#
-# An exit-descriptor's target is its input, computed during 'tailor-exit-descriptor'.
-# Its value is its output, computed during stop and available to the test.
-
-== code
-#   instruction                     effective address                                                   register    displacement    immediate
-# . 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
-
-# Configure an exit-descriptor for a call pushing 'nbytes' bytes of args to
-# the stack.
-# Ugly that we need to know the size of args, but so it goes.
-tailor-exit-descriptor:  # ed : (address exit-descriptor), nbytes : int -> <void>
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # . save registers
-    50/push-EAX
-    51/push-ECX
-    # EAX = nbytes
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .             .           0/r32/EAX   0xc/disp8       .                 # copy *(EBP+12) to EAX
-    # Let X be the value of ESP in the caller, before the call to tailor-exit-descriptor.
-    # The return address for a call in the caller's body will be at:
-    #   X-8 if the caller takes 4 bytes of args for the exit-descriptor (add 4 bytes for the return address)
-    #   X-12 if the caller takes 8 bytes of args
-    #   ..and so on
-    # That's the value we need to return: X-nbytes-4
-    #
-    # However, we also need to account for the perturbance to ESP caused by the
-    # call to tailor-exit-descriptor. It pushes 8 bytes of args followed by 4
-    # bytes for the return address and 4 bytes to push EBP above.
-    # So EBP at this point is X-16.
-    #
-    # So the return address for the next call in the caller is:
-    #   EBP+8 if the caller takes 4 bytes of args
-    #   EBP+4 if the caller takes 8 bytes of args
-    #   EBP if the caller takes 12 bytes of args
-    #   EBP-4 if the caller takes 16 bytes of args
-    #   ..and so on
-    # That's EBP+12-nbytes.
-    # option 1: 6 + 3 bytes
-#?     2d/subtract                     3/mod/direct    0/rm32/EAX    .           .             .           .           .               8/imm32           # subtract from EAX
-#?     8d/copy-address                 0/mod/indirect  4/rm32/sib    5/base/EBP  0/index/EAX   .           0/r32/EAX   .               .                 # copy EBP+EAX to EAX
-    # option 2: 2 + 4 bytes
-    f7          3/subop/negate      3/mod/direct    0/rm32/EAX    .           .             .           .           .               .                 # negate EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    5/base/EBP  0/index/EAX   .           0/r32/EAX   0xc/disp8         .               # copy EBP+EAX+12 to EAX
-    # copy EAX to ed->target
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .             .           1/r32/ECX   8/disp8         .                 # copy *(EBP+8) to ECX
-    89/copy                         0/mod/indirect  1/rm32/ECX    .           .             .           0/r32/EAX   .               .                 # copy EAX to *ECX
-    # initialize ed->value
-    c7          0/subop/copy        1/mod/*+disp8   1/rm32/ECX    .           .             .           .           4/disp8         0/imm32           # copy to *(ECX+4)
-$tailor-exit-descriptor:end:
-    # . restore registers
-    59/pop-to-ECX
-    58/pop-to-EAX
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-stop:  # ed : (address exit-descriptor), value : int
-    # no prolog; one way or another, we're going to clobber registers
-    # EAX = ed
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           0/r32/EAX   4/disp8         .                 # copy *(ESP+4) to EAX
-    # if (ed->target == 0) really exit
-    81          7/subop/compare     0/mod/indirect  0/rm32/EAX    .           .             .           .           .               0/imm32           # compare *EAX
-    75/jump-if-not-equal  $stop:fake/disp8
-    # . syscall(exit, value)
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           3/r32/EBX   8/disp8         .                 # copy *(ESP+8) to EBX
-    b8/copy-to-EAX  1/imm32/exit
-    cd/syscall  0x80/imm8
-$stop:fake:
-    # otherwise:
-    # ed->value = value+1
-    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/ESP  4/index/none  .           1/r32/ECX   8/disp8         .                 # copy *(ESP+8) to ECX
-    41/increment-ECX
-    89/copy                         1/mod/*+disp8   0/rm32/EAX    .           .             .           1/r32/ECX   4/disp8         .                 # copy ECX to *(EAX+4)
-    # perform a non-local jump to ed->target
-    8b/copy                         0/mod/indirect  0/rm32/EAX    .           .             .           4/r32/ESP   .               .                 # copy *EAX to ESP
-$stop:end:
-    c3/return  # doesn't return to caller
-
-test-stop-skips-returns-on-exit:
-    # This looks like the standard prolog, but is here for different reasons.
-    # A function calling 'stop' can't rely on EBP persisting past the call.
-    #
-    # Use EBP here as a stable base to refer to locals and arguments from in the
-    # presence of push/pop/call instructions.
-    # *Don't* use EBP as a way to restore ESP.
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # Make room for an exit descriptor on the stack. That's almost always the
-    # right place for it, available only as long as it's legal to use. Once this
-    # containing function returns we'll need a new exit descriptor.
-    # var ed/EAX : (address exit-descriptor)
-    81          5/subop/subtract    3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # subtract from ESP
-    89/copy                         3/mod/direct    0/rm32/EAX    .           .             .           4/r32/ESP   .               .                 # copy ESP to EAX
-    # Size the exit-descriptor precisely for the next call below, to _test-stop-1.
-    # tailor-exit-descriptor(ed, 4)
-    # . . push args
-    68/push  4/imm32/nbytes-of-args-for-_test-stop-1
-    50/push-EAX
-    # . . call
-    e8/call  tailor-exit-descriptor/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # . _test-stop-1(ed)
-    # . . push args
-    50/push-EAX
-    # . . call
-    e8/call  _test-stop-1/disp32
-    # registers except ESP may be clobbered at this point
-    # restore args
-    58/pop-to-EAX
-    # check that _test-stop-1 tried to call exit(1)
-    # check-ints-equal(ed->value, 2, msg)  # i.e. stop was called with value 1
-    # . . push args
-    68/push  "F - test-stop-skips-returns-on-exit"/imm32
-    68/push  2/imm32
-    # . . push ed->value
-    ff          6/subop/push        1/mod/*+disp8   0/rm32/EAX    .           .             .           .           4/disp8         .                 # push *(EAX+4)
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . epilog
-    # don't restore ESP from EBP; manually reclaim locals
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    5d/pop-to-EBP
-    c3/return
-
-_test-stop-1:  # ed : (address exit-descriptor)
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # _test-stop-2(ed)
-    # . . push args
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
-    # . . call
-    e8/call  _test-stop-2/disp32
-    # should never get past this point
-$_test-stop-1:dead-end:
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # signal test failed: check-ints-equal(1, 0, msg)
-    # . . push args
-    68/push  "F - test-stop-skips-returns-on-exit"/imm32
-    68/push  0/imm32
-    68/push  1/imm32
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-_test-stop-2:  # ed : (address exit-descriptor)
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # . stop(ed, 1)
-    # . . push args
-    68/push  1/imm32
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
-    # . . call
-    e8/call  stop/disp32
-    # should never get past this point
-$_test-stop-2:dead-end:
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-# . . vim:nowrap:textwidth=0
diff --git a/linux/111read.subx b/linux/111read.subx
index 1f5a557d..43426fde 100644
--- a/linux/111read.subx
+++ b/linux/111read.subx
@@ -210,7 +210,7 @@ _read:  # fd: int, s: (addr stream byte) -> num-bytes-read/eax: int
     8b/copy                         0/mod/indirect  6/rm32/esi    .           .             .           0/r32/eax   .               .                 # copy *esi to eax
     # edx = s->size
     8b/copy                         1/mod/*+disp8   6/rm32/esi    .           .             .           2/r32/edx   8/disp8         .                 # copy *(esi+8) to edx
-    # syscall(read, fd, &s->data[s->write], s->size - s->write)
+    # syscall_read(fd, &s->data[s->write], s->size - s->write)
     # . . fd: ebx
     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           3/r32/ebx   8/disp8         .                 # copy *(ebp+8) to ebx
     # . . data: ecx = &s->data[s->write]
diff --git a/linux/112read-byte.subx b/linux/112read-byte.subx
index 7510a9e8..ea6700b9 100644
--- a/linux/112read-byte.subx
+++ b/linux/112read-byte.subx
@@ -307,7 +307,7 @@ $read-byte:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/113write-stream.subx b/linux/113write-stream.subx
index d7e975c0..a217f052 100644
--- a/linux/113write-stream.subx
+++ b/linux/113write-stream.subx
@@ -10,7 +10,7 @@
 #?     68/push  _test-stream2/imm32
 #?     68/push  1/imm32/stdout
 #?     e8/call write-stream/disp32
-#?     # syscall(exit, Num-test-failures)
+#?     # 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
 #?     e8/call  syscall_exit/disp32
 
@@ -91,7 +91,7 @@ _write-stream:  # fd: int, s: (addr stream byte)
     8b/copy                         1/mod/*+disp8   6/rm32/esi    .           .             .           7/r32/edi   4/disp8         .                 # copy *(esi+4) to edi
     # edx = s->write
     8b/copy                         0/mod/indirect  6/rm32/esi    .           .             .           2/r32/edx   .               .                 # copy *esi to edx
-    # syscall(write, fd, &s->data[s->read], s->write - s->read)
+    # syscall_write(fd, &s->data[s->read], s->write - s->read)
     # . . fd: ebx
     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           3/r32/ebx   8/disp8         .                 # copy *(ebp+8) to ebx
     # . . data: ecx = &s->data[s->read]
@@ -126,7 +126,7 @@ $_write-stream:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/115write-byte.subx b/linux/115write-byte.subx
index d38db24c..08d656e8 100644
--- a/linux/115write-byte.subx
+++ b/linux/115write-byte.subx
@@ -247,7 +247,7 @@ $append-byte:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/118parse-hex-int.subx b/linux/118parse-hex-int.subx
index ac911d97..c37d14ce 100644
--- a/linux/118parse-hex-int.subx
+++ b/linux/118parse-hex-int.subx
@@ -930,7 +930,7 @@ $from-hex-char:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/119error-byte.subx b/linux/119error-byte.subx
index 1ce0a3d6..0e4f1c59 100644
--- a/linux/119error-byte.subx
+++ b/linux/119error-byte.subx
@@ -18,7 +18,7 @@
 #?     68/push  Stderr/imm32
 #?     50/push-eax
 #?     e8/call  error-byte/disp32
-#?     # . syscall(exit, Num-test-failures)
+#?     # . 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
 #?     e8/call  syscall_exit/disp32
 
diff --git a/linux/120allocate.subx b/linux/120allocate.subx
index 11de944b..254c5f33 100644
--- a/linux/120allocate.subx
+++ b/linux/120allocate.subx
@@ -57,7 +57,7 @@ Entry:
 
     e8/call  run-tests/disp32  # 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.
 $array-equal-main:end:
-    # syscall(exit, Num-test-failures)
+    # 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
     e8/call  syscall_exit/disp32
 
@@ -161,7 +161,7 @@ $allocate-raw:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -292,7 +292,7 @@ $lookup:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32/exit-status
     e8/call  syscall_exit/disp32
 
@@ -574,7 +574,7 @@ $allocate-region:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/121new-stream.subx b/linux/121new-stream.subx
index 41d1c31b..83bb9a2b 100644
--- a/linux/121new-stream.subx
+++ b/linux/121new-stream.subx
@@ -66,7 +66,7 @@ $new-stream:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/122read-line.subx b/linux/122read-line.subx
index 02dcc0fd..fecd2942 100644
--- a/linux/122read-line.subx
+++ b/linux/122read-line.subx
@@ -102,7 +102,7 @@ $read-line-buffered:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -286,7 +286,7 @@ $read-line:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/123slice.subx b/linux/123slice.subx
index c3a4943a..f23abc24 100644
--- a/linux/123slice.subx
+++ b/linux/123slice.subx
@@ -856,7 +856,7 @@ $write-slice:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1120,7 +1120,7 @@ $slice-to-string:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/126write-int-decimal.subx b/linux/126write-int-decimal.subx
index bff585a7..04f8b021 100644
--- a/linux/126write-int-decimal.subx
+++ b/linux/126write-int-decimal.subx
@@ -122,7 +122,7 @@ $write-int32-decimal:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -458,7 +458,7 @@ $to-decimal-digit:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/131table.subx b/linux/131table.subx
index 018e37ef..aa47204b 100644
--- a/linux/131table.subx
+++ b/linux/131table.subx
@@ -122,7 +122,7 @@ $get:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -313,7 +313,7 @@ $get-slice:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -530,7 +530,7 @@ $get-or-insert:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -816,7 +816,7 @@ $get-or-insert-handle:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1133,7 +1133,7 @@ $get-or-insert-slice:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1434,7 +1434,7 @@ $get-or-stop:stop:
 $get-or-stop:terminus:
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 1)
+    # syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
 
@@ -1660,7 +1660,7 @@ $get-slice-or-stop:stop:
 $get-slice-or-stop:terminus:
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 1)
+    # syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
 
diff --git a/linux/132slurp.subx b/linux/132slurp.subx
index ed590fa0..b4043d9e 100644
--- a/linux/132slurp.subx
+++ b/linux/132slurp.subx
@@ -98,7 +98,7 @@ $slurp:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/202write-int.subx b/linux/202write-int.subx
index 97e681c7..745c34ef 100644
--- a/linux/202write-int.subx
+++ b/linux/202write-int.subx
@@ -45,7 +45,7 @@ $write-int:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/203stack.subx b/linux/203stack.subx
index 965f7301..039aca08 100644
--- a/linux/203stack.subx
+++ b/linux/203stack.subx
@@ -158,7 +158,7 @@ $push:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -276,7 +276,7 @@ $pop:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -377,7 +377,7 @@ $top:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/apps/ex11.subx b/linux/apps/ex11.subx
index 434d824d..67eb790f 100644
--- a/linux/apps/ex11.subx
+++ b/linux/apps/ex11.subx
@@ -316,7 +316,7 @@ write-stderr:  # s: (addr array byte) -> <void>
     51/push-ecx
     52/push-edx
     53/push-ebx
-    # syscall(write, 2/stderr, (data) s+4, (size) *s)
+    # syscall_write(2/stderr, (data) s+4, (size) *s)
     # . . fd = 2 (stderr)
     bb/copy-to-ebx  2/imm32
     # . . x = s+4
diff --git a/linux/apps/ex5.subx b/linux/apps/ex5.subx
index d7bab0ce..f9bbc661 100644
--- a/linux/apps/ex5.subx
+++ b/linux/apps/ex5.subx
@@ -24,7 +24,7 @@ Entry:
     # . syscall
     e8/call  syscall_read/disp32
 
-    # syscall(write, stdout, x, 1)
+    # syscall_write(stdout, x, 1)
     # . fd = 1 (stdout)
     bb/copy-to-ebx  1/imm32
     # . data = x (location to read from)
diff --git a/linux/assort.subx b/linux/assort.subx
index d69a3bd9..2e656429 100644
--- a/linux/assort.subx
+++ b/linux/assort.subx
@@ -55,7 +55,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-assort-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-assort-main:end/disp8
 $subx-assort-main:interactive:
@@ -76,7 +76,7 @@ $subx-assort-main:interactive:
     e8/call  subx-assort/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0x10/imm32        # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-assort-main:end:
     e8/call  syscall_exit/disp32
diff --git a/linux/braces.subx b/linux/braces.subx
index 58e3ec59..6fa698e9 100644
--- a/linux/braces.subx
+++ b/linux/braces.subx
@@ -64,12 +64,12 @@ Entry:  # run tests if necessary, a REPL if not
     74/jump-if-= $subx-braces-main:interactive/disp8
     #
     (run-tests)
-    # syscall(exit, *Num-test-failures)
+    # syscall_exit(*Num-test-failures)
     8b/-> *Num-test-failures 3/r32/ebx
     eb/jump $subx-braces-main:end/disp8
 $subx-braces-main:interactive:
     (subx-braces Stdin Stdout)
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx 0/imm32
 $subx-braces-main:end:
     e8/call syscall_exit/disp32
diff --git a/linux/calls.subx b/linux/calls.subx
index 2c962e77..cb93e0d1 100644
--- a/linux/calls.subx
+++ b/linux/calls.subx
@@ -56,7 +56,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-= $subx-calls-main:interactive/disp8
     # run-tests()
     e8/call run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # syscall_exit(*Num-test-failures)
     8b/-> *Num-test-failures 3/r32/ebx
     eb/jump $subx-calls-main:end/disp8
 $subx-calls-main:interactive:
@@ -69,7 +69,7 @@ $subx-calls-main:interactive:
     e8/call subx-calls/disp32
     # . . discard args
     81 0/subop/add %esp 8/imm32
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx 0/imm32
 $subx-calls-main:end:
     e8/call syscall_exit/disp32
@@ -590,7 +590,7 @@ $emit-call:error1:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1079,7 +1079,7 @@ $next-word-string-or-expression-without-metadata:error0:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1117,7 +1117,7 @@ $next-word-string-or-expression-without-metadata:error1:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1155,7 +1155,7 @@ $next-word-string-or-expression-without-metadata:error2:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1193,7 +1193,7 @@ $next-word-string-or-expression-without-metadata:error3:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1231,7 +1231,7 @@ $next-word-string-or-expression-without-metadata:error4a:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1269,7 +1269,7 @@ $next-word-string-or-expression-without-metadata:error4:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
@@ -1307,7 +1307,7 @@ $next-word-string-or-expression-without-metadata:error5:
     e8/call flush/disp32
     # . . discard args
     81 0/subop/add %esp 4/imm32
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx 1/imm32
     e8/call syscall_exit/disp32
     # never gets here
diff --git a/linux/dquotes.subx b/linux/dquotes.subx
index 2fb65d42..6a5c917f 100644
--- a/linux/dquotes.subx
+++ b/linux/dquotes.subx
@@ -51,7 +51,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-dquotes-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-dquotes-main:end/disp8
 $subx-dquotes-main:interactive:
@@ -72,7 +72,7 @@ $subx-dquotes-main:interactive:
     e8/call  subx-dquotes/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0x10/imm32        # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-dquotes-main:end:
     e8/call  syscall_exit/disp32
diff --git a/linux/hex.subx b/linux/hex.subx
index 242dc5d4..29ac3b5c 100644
--- a/linux/hex.subx
+++ b/linux/hex.subx
@@ -49,7 +49,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-hex-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-hex-main:end/disp8
 $subx-hex-main:interactive:
@@ -64,7 +64,7 @@ $subx-hex-main:interactive:
     e8/call  subx-hex/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0x10/imm32        # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-hex-main:end:
     e8/call  syscall_exit/disp32
diff --git a/linux/labels_baremetal.subx b/linux/labels_baremetal.subx
index e4a29b62..a4ea991d 100644
--- a/linux/labels_baremetal.subx
+++ b/linux/labels_baremetal.subx
@@ -80,7 +80,7 @@ Entry:  # run tests if necessary, convert stdin if not
     # run-tests()
 #?     e8/call  test-emit-output-with-padding/disp32
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-labels-main:end/disp8
 $subx-labels-main:interactive:
@@ -118,7 +118,7 @@ $subx-labels-main:interactive:
 #?     e8/call  write-stream/disp32
 #?     # . . discard args
 #?     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-labels-main:end:
     e8/call  syscall_exit/disp32
@@ -1135,7 +1135,7 @@ $emit-output:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2162,7 +2162,7 @@ $stream-add2:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/mu.subx b/linux/mu.subx
index c90df5ba..4f69e96a 100644
--- a/linux/mu.subx
+++ b/linux/mu.subx
@@ -493,7 +493,7 @@ Entry:
       74/jump-if-= break/disp8
       #
       (run-tests)
-      # syscall(exit, *Num-test-failures)
+      # syscall_exit(*Num-test-failures)
       8b/-> *Num-test-failures 3/r32/ebx
       eb/jump $mu-main:end/disp8
     }
@@ -501,7 +501,7 @@ Entry:
     (write-buffered Stdout "== code\n")
     (convert-mu Stdin Stdout Stderr 0)
     (flush Stdout)
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx 0/imm32
 $mu-main:end:
     e8/call syscall_exit/disp32
@@ -18450,7 +18450,7 @@ check-no-tokens-left:  # line: (addr stream byte)
     (write-stream 2 %ecx)
     (write-buffered Stderr "'\n")
     (flush Stderr)
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call syscall_exit/disp32
     # never gets here
diff --git a/linux/pack.subx b/linux/pack.subx
index 7ed01c5e..e50a5b9b 100644
--- a/linux/pack.subx
+++ b/linux/pack.subx
@@ -50,7 +50,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-pack-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-pack-main:end/disp8
 $subx-pack-main:interactive:
@@ -63,7 +63,7 @@ $subx-pack-main:interactive:
     e8/call  subx-pack/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0x8/imm32         # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-pack-main:end:
     e8/call  syscall_exit/disp32
diff --git a/linux/random.subx b/linux/random.subx
index 639638cc..d7bc03ac 100644
--- a/linux/random.subx
+++ b/linux/random.subx
@@ -10,7 +10,7 @@
 # . 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
 
 Entry:
-    # stream/esi = syscall(open, "/dev/null", O_RDONLY, 0)  # we can't use 'fd' because it looks like a hex byte
+    # stream/esi = syscall_open("/dev/null", O_RDONLY, 0)  # we can't use 'fd' because it looks like a hex byte
     bb/copy-to-ebx  Filename/imm32
     b9/copy-to-ecx  0/imm32/rdonly
     ba/copy-to-edx  0x180/imm32/fixed-perms
@@ -20,7 +20,7 @@ Entry:
 
 $loop:
 
-    # syscall(read, Stream, N, 4)
+    # syscall_read(Stream, N, 4)
     89/copy                         3/mod/direct    3/rm32/ebx    .           .             .           6/r32/esi   .               .                 # copy esi to ebx
     b9/copy-to-ecx  N/imm32
     ba/copy-to-edx  4/imm32/size
@@ -44,7 +44,7 @@ $loop:
 
     eb/jump  $loop/disp8
 
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
     e8/call  syscall_exit/disp32
 
diff --git a/linux/sigils.subx b/linux/sigils.subx
index dd53efbe..ae2fc576 100644
--- a/linux/sigils.subx
+++ b/linux/sigils.subx
@@ -87,7 +87,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-sigils-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-sigils-main:end/disp8
 $subx-sigils-main:interactive:
@@ -100,7 +100,7 @@ $subx-sigils-main:interactive:
     e8/call  subx-sigils/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-sigils-main:end:
     e8/call  syscall_exit/disp32
@@ -427,7 +427,7 @@ $subx-sigils:error1:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1803,7 +1803,7 @@ $next-word-or-expression:error1:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -1841,7 +1841,7 @@ $next-word-or-expression:error2:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2569,7 +2569,7 @@ $parse-effective-address:error1:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2607,7 +2607,7 @@ $parse-effective-address:error2:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2645,7 +2645,7 @@ $parse-effective-address:error3:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2683,7 +2683,7 @@ $parse-effective-address:error4:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -4155,7 +4155,7 @@ $next-hex-int:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/survey_baremetal.subx b/linux/survey_baremetal.subx
index d1d62906..5a8f46af 100644
--- a/linux/survey_baremetal.subx
+++ b/linux/survey_baremetal.subx
@@ -72,7 +72,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-survey-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-survey-main:end/disp8
 $subx-survey-main:interactive:
@@ -93,7 +93,7 @@ $subx-survey-main:interactive:
 #?     e8/call  write-stream/disp32
 #?     # . . discard args
 #?     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-survey-main:end:
     e8/call  syscall_exit/disp32
@@ -764,7 +764,7 @@ $compute-addresses:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -778,7 +778,7 @@ $compute-addresses:error-bad-segment-address:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/survey_elf.subx b/linux/survey_elf.subx
index bfa76830..838feb88 100644
--- a/linux/survey_elf.subx
+++ b/linux/survey_elf.subx
@@ -79,7 +79,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-survey-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-survey-main:end/disp8
 $subx-survey-main:interactive:
@@ -100,7 +100,7 @@ $subx-survey-main:interactive:
 #?     e8/call  write-stream/disp32
 #?     # . . discard args
 #?     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-survey-main:end:
     e8/call  syscall_exit/disp32
@@ -935,7 +935,7 @@ $compute-offsets:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2336,7 +2336,7 @@ $emit-segments:imm8-abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -2366,7 +2366,7 @@ $emit-segments:abort:
     e8/call  flush/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -3514,7 +3514,7 @@ $stream-add5:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
@@ -3609,7 +3609,7 @@ $stream-add6:abort:
     e8/call  _write/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # . syscall(exit, 1)
+    # . syscall_exit(1)
     bb/copy-to-ebx  1/imm32
     e8/call  syscall_exit/disp32
     # never gets here
diff --git a/linux/tests.subx b/linux/tests.subx
index 1075b113..1c2d7068 100644
--- a/linux/tests.subx
+++ b/linux/tests.subx
@@ -48,7 +48,7 @@ Entry:  # run tests if necessary, convert stdin if not
     74/jump-if-=  $subx-tests-main:interactive/disp8
     # run-tests()
     e8/call  run-tests/disp32
-    # syscall(exit, *Num-test-failures)
+    # 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
     eb/jump  $subx-tests-main:end/disp8
 $subx-tests-main:interactive:
@@ -61,7 +61,7 @@ $subx-tests-main:interactive:
     e8/call  subx-gen-run-tests/disp32
     # . . discard args
     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
-    # syscall(exit, 0)
+    # syscall_exit(0)
     bb/copy-to-ebx  0/imm32
 $subx-tests-main:end:
     e8/call  syscall_exit/disp32
-- 
cgit 1.4.1-2-gfad0