4949

1 files changed, 0 insertions, 243 deletions

diff --git a/subx/060write-stream.subx b/subx/060write-stream.subx
deleted file mode 100644
index f112dee9..00000000
--- a/subx/060write-stream.subx
+++ /dev/null
@@ -1,243 +0,0 @@
-# write-stream: like write, but write streams rather than strings
-
-== 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
-
-# main:
-    # manual test
-#?     # write-stream(stdout, _test-stream2)
-#?     68/push  _test-stream2/imm32
-#?     68/push  1/imm32/stdout
-#?     e8/call write-stream/disp32
-    # automatic test
-#?     e8/call test-write-stream-appends/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)
-    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/exit
-    cd/syscall  0x80/imm8
-
-write-stream:  # f : fd or (address stream), s : (address stream) -> <void>
-    # . prolog
-    55/push-EBP
-    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
-    # if (f < 0x08000000) _write-stream(f, s), return  # f can't be a user-mode address, so treat it as a kernel file descriptor
-    81          7/subop/compare     1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         0x08000000/imm32  # compare *(EBP+8)
-    7d/jump-if-greater-or-equal  $write-stream:fake/disp8
-    # . . push args
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           0xc/disp8       .                 # push *(EBP+12)
-    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
-    # . . call
-    e8/call  _write-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    eb/jump  $write-stream:end/disp8
-$write-stream:fake:
-    # otherwise, treat 'f' as a stream to append to
-    # . save registers
-    50/push-EAX
-    56/push-ESI
-    57/push-EDI
-    # EDI = f
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .                         7/r32/EDI   8/disp8         .                 # copy *(EBP+8) to EDI
-    # ESI = s
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .                         6/r32/ESI   0xc/disp8       .                 # copy *(EBP+12) to ESI
-    # EAX = _append-4(&f->data[f->write], &f->data[f->length], &s->data[s->read], &s->data[s->write])
-    # . . push &s->data[s->write]
-    8b/copy                         0/mod/indirect  6/rm32/ESI    .           .             .           0/r32/EAX   .               .                 # copy *ESI to EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  0/index/EAX   .           0/r32/EAX   0xc/disp8       .                 # copy ESI+EAX+12 to EAX
-    50/push-EAX
-    # . . push &s->data[s->read]
-    8b/copy                         1/mod/*+disp8   6/rm32/ESI    .           .             .           0/r32/EAX   4/disp8         .                 # copy *(ESI+4) to EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  0/index/EAX   .           0/r32/EAX   0xc/disp8       .                 # copy ESI+EAX+12 to EAX
-    50/push-EAX
-    # . . push &f->data[f->length]
-    8b/copy                         1/mod/*+disp8   7/rm32/EDI    .           .             .           0/r32/EAX   8/disp8         .                 # copy *(EDI+8) to EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    7/base/EDI  0/index/EAX   .           0/r32/EAX   0xc/disp8       .                 # copy EDI+EAX+12 to EAX
-    50/push-EAX
-    # . . push &f->data[f->write]
-    8b/copy                         0/mod/indirect  7/rm32/EDI    .           .             .           0/r32/EAX   .               .                 # copy *EDI to EAX
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    7/base/EDI  0/index/EAX   .           0/r32/EAX   0xc/disp8       .                 # copy EDI+EAX+12 to EAX
-    50/push-EAX
-    # . . call
-    e8/call  _append-4/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0x10/imm32        # add to ESP
-    # f->write += EAX
-    01/add                          0/mod/indirect  7/rm32/EDI    .           .             .           0/r32/EAX   .               .                 # add EAX to *EDI
-    # s->read += EAX
-    01/add                          1/mod/*+disp8   6/rm32/ESI    .           .             .           0/r32/EAX   4/disp8         .                 # add EAX to *(ESI+4)
-    # . restore registers
-    5f/pop-to-EDI
-    5e/pop-to-ESI
-    58/pop-to-EAX
-$write-stream:end:
-    # . epilog
-    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
-    5d/pop-to-EBP
-    c3/return
-
-_write-stream:  # fd : int, s : (address stream) -> <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
-    52/push-EDX
-    53/push-EBX
-    56/push-ESI
-    57/push-EDI
-    # ESI = s
-    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .             .           6/r32/ESI   0xc/disp8       .                 # copy *(EBP+12) to ESI
-    # EDI = s->read
-    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)
-    # . . 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]
-    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    6/base/ESI  7/index/EDI   .           1/r32/ECX   0xc/disp8       .                 # copy ESI+EDI+12 to ECX
-    # . . size : EDX = s->write - s->read
-    29/subtract                     3/mod/direct    2/rm32/EDX    .           .             .           7/r32/EDI   .               .                 # subtract EDI from EDX
-    # . . syscall
-    b8/copy-to-EAX  4/imm32/write
-    cd/syscall  0x80/imm8
-    # . restore registers
-    5f/pop-to-EDI
-    5e/pop-to-ESI
-    5b/pop-to-EBX
-    5a/pop-to-EDX
-    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
-
-test-write-stream-single:
-    # setup
-    # . clear-stream(_test-stream)
-    # . . push args
-    68/push  _test-stream/imm32
-    # . . call
-    e8/call  clear-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # . clear-stream(_test-stream2)
-    # . . push args
-    68/push  _test-stream2/imm32
-    # . . call
-    e8/call  clear-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # . write(_test-stream2, "Ab")
-    # . . push args
-    68/push  "Ab"/imm32
-    68/push  _test-stream2/imm32
-    # . . call
-    e8/call  write/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # write-stream(_test-stream, _test-stream2)
-    # . . push args
-    68/push  _test-stream2/imm32
-    68/push  _test-stream/imm32
-    # . . call
-    e8/call  write-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # check-ints-equal(*_test-stream->data, 41/A 62/b 00 00, msg)
-    # . . push args
-    68/push  "F - test-write-stream-single"/imm32
-    68/push  0x006241/imm32/Ab
-    # . . push *_test-stream->data
-    b8/copy-to-EAX  _test-stream/imm32
-    ff          6/subop/push        1/mod/*+disp8   0/rm32/EAX    .           .             .           .           0xc/disp8       .                 # push *(EAX+12)
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . end
-    c3/return
-
-test-write-stream-appends:
-    # setup
-    # . clear-stream(_test-stream)
-    # . . push args
-    68/push  _test-stream/imm32
-    # . . call
-    e8/call  clear-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # . clear-stream(_test-stream2)
-    # . . push args
-    68/push  _test-stream2/imm32
-    # . . call
-    e8/call  clear-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
-    # . write(_test-stream2, "C")
-    # . . push args
-    68/push  "C"/imm32
-    68/push  _test-stream2/imm32
-    # . . call
-    e8/call  write/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # first write
-    # . write-stream(_test-stream, _test-stream2)
-    # . . push args
-    68/push  _test-stream2/imm32
-    68/push  _test-stream/imm32
-    # . . call
-    e8/call  write-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # second write
-    # . write(_test-stream2, "D")
-    # . . push args
-    68/push  "D"/imm32
-    68/push  _test-stream2/imm32
-    # . . call
-    e8/call  write/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # . write-stream(_test-stream, _test-stream2)
-    # . . push args
-    68/push  _test-stream2/imm32
-    68/push  _test-stream/imm32
-    # . . call
-    e8/call  write-stream/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
-    # check-ints-equal(*_test-stream->data, 43/C 44/D 00 00, msg)
-    # . . push args
-    68/push  "F - test-write-stream-appends"/imm32
-    68/push  0x00004443/imm32/C-D
-    # . . push *_test-stream->data
-    b8/copy-to-EAX  _test-stream/imm32
-    ff          6/subop/push        1/mod/*+disp8   0/rm32/EAX    .           .             .           .           0xc/disp8       .                 # push *(EAX+12)
-    # . . call
-    e8/call  check-ints-equal/disp32
-    # . . discard args
-    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
-    # . end
-    c3/return
-
-== data
-
-_test-stream2:
-    # current write index
-    04 00 00 00
-    # current read index
-    01 00 00 00
-    # length (= 8)
-    08 00 00 00
-    # data
-    41 42 43 44 00 00 00 00  # 8 bytes
-
-# . . vim:nowrap:textwidth=0