arc/.traces/channel-write


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c{0: 0 (((1 channel-address)) <- ((init-channel)) ((3 literal))) -- nil
c{0: 1 (((2 integer)) <- ((copy)) ((34 literal))) -- nil
c{0: 2 (((3 tagged-value)) <- ((save-type)) ((2 integer))) -- nil
c{0: 3 (((1 channel-address) (deref)) <- ((write)) ((1 channel-address)) ((3 tagged-value))) -- nil
c{0: 4 (((5 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-full offset))) -- nil
c{0: 5 (((6 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-free offset))) -- nil
c{1: 0 ✓ (((1 channel-address)) <- ((init-channel)) ((3 literal)))
c{1: 1 ✓ (((2 integer)) <- ((copy)) ((34 literal)))
c{1: 2 ✓ (((3 tagged-value)) <- ((save-type)) ((2 integer)))
c{1: 3 ✓ (((1 channel-address) (deref)) <- ((write)) ((1 channel-address)) ((3 tagged-value)))
c{1: 4 ✓ (((5 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-full offset)))
c{1: 5 ✓ (((6 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-free offset)))
cn0: convert-names in main
cn0: (((1 channel-address)) <- ((init-channel)) ((3 literal))) nil nil
cn0: checking arg ((3 literal))
cn0: checking oarg ((1 channel-address))
maybe-add: ((1 channel-address))
cn0: (((2 integer)) <- ((copy)) ((34 literal))) nil nil
cn0: checking arg ((34 literal))
cn0: checking oarg ((2 integer))
maybe-add: ((2 integer))
cn0: (((3 tagged-value)) <- ((save-type)) ((2 integer))) nil nil
cn0: checking arg ((2 integer))
maybe-add: ((2 integer))
cn0: checking oarg ((3 tagged-value))
maybe-add: ((3 tagged-value))
cn0: (((1 channel-address) (deref)) <- ((write)) ((1 channel-address)) ((3 tagged-value))) nil nil
cn0: checking arg ((1 channel-address))
maybe-add: ((1 channel-address))
cn0: checking arg ((3 tagged-value))
maybe-add: ((3 tagged-value))
cn0: checking oarg ((1 channel-address) (deref))
maybe-add: ((1 channel-address) (deref))
cn0: (((5 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-full offset))) nil nil
cn0: field-access first-full in 1channel-addressderef of type channel
cn0: new field; computing location
cn0: field location 0
cn0: checking arg ((1 channel-address) (deref))
maybe-add: ((1 channel-address) (deref))
cn0: checking arg ((first-full offset))
cn0: checking oarg ((5 integer))
maybe-add: ((5 integer))
cn0: (((6 integer)) <- ((get)) ((1 channel-address) (deref)) ((first-free offset))) ((first-full 0)) ((first-full t))
cn0: field-access first-free in 1channel-addressderef of type channel
cn0: new field; computing location
cn0: field location 1
cn0: checking arg ((1 channel-address) (deref))
maybe-add: ((1 channel-address) (deref))
cn0: checking arg ((first-free offset))
cn0: checking oarg ((6 integer))
maybe-add: ((6 integer))
cn1: (((1 channel-address)) <- ((init-channel)) ((3 literal)))
cn1: (((2 integer)) <- ((copy)) ((34 literal)))
cn1: (((3 tagged-value)) <- ((save-type)) ((2 integer)))
cn1: (((1 channel-address) (deref)) <- ((write)) ((1 channel-address)) ((3 tagged-value)))
cn1: (((5 integer)) <- ((get)) ((1 channel-address) (deref)) ((0 offset)))
cn1: (((6 integer)) <- ((get)) ((1 channel-address) (deref)) ((1 offset)))
schedule: main
run: main 0: (((1 channel-address)) <- ((init-channel)) ((3 literal)))
run: init-channel/main 0: (((default-space space-address)) <- ((new)) ((space literal)) ((30 literal)))
run: init-channel/main 0: 1000 => ((default-space space-address))
run: init-channel/main 1: (((1 channel-address)) <- ((new)) ((channel literal)))
run: init-channel/main 1: 1031 => ((1 channel-address))
mem: ((1 channel-address)): 1002 <= 1031
run: init-channel/main 2: (((2 integer-address)) <- ((get-address)) ((1 channel-address) (deref)) ((0 offset)))
run: init-channel/main 2: 1031 => ((2 integer-address))
mem: ((2 integer-address)): 1003 <= 1031
run: init-channel/main 3: (((2 integer-address) (deref)) <- ((copy)) ((0 literal)))
run: init-channel/main 3: 0 => ((2 integer-address) (deref))
mem: ((2 integer-address) (deref)): 1031 <= 0
run: init-channel/main 4: (((3 integer-address)) <- ((get-address)) ((1 channel-address) (deref)) ((1 offset)))
run: init-channel/main 4: 1032 => ((3 integer-address))
mem: ((3 integer-address)): 1004 <= 1032
run: init-channel/main 5: (((3 integer-address) (deref)) <- ((copy)) ((0 literal)))
run: init-channel/main 5: 0 => ((3 integer-address) (deref))
mem: ((3 integer-address) (deref)): 1032 <= 0
run: init-channel/main 6: (((4 integer)) <- ((next-input)))
arg: nil 0 (3)
run: init-channel/main 6: 3 => ((4 integer))
mem: ((4 integer)): 1005 <= 3
run: init-channel/main 7: (((4 integer)) <- ((add)) ((4 integer)) ((1 literal)))
mem: ((4 integer)) => 3
run: init-channel/main 7: 4 => ((4 integer))
mem: ((4 integer)): 1005 <= 4
run: init-channel/main 8: (((5 tagged-value-array-address-address)) <- ((get-address)) ((1 channel-address) (deref)) ((2 offset)))
run: init-channel/main 8: 1033 => ((5 tagged-value-array-address-address))
mem: ((5 tagged-value-array-address-address)): 1006 <= 1033
run: init-channel/main 9: (((5 tagged-value-array-address-address) (deref)) <- ((new)) ((tagged-value-array literal)) ((4 integer)))
mem: ((4 integer)) => 4
run: init-channel/main 9: 1034 => ((5 tagged-value-array-address-address) (deref))
mem: ((5 tagged-value-array-address-address) (deref)): 1033 <= 1034
run: init-channel/main 10: (((reply)) ((1 channel-address)))
mem: ((1 channel-address)) => 1031
run: main 0: 1031 => ((1 channel-address))
mem: ((1 channel-address)): 1 <= 1031
run: main 1: (((2 integer)) <- ((copy)) ((34 literal)))
run: main 1: 34 => ((2 integer))
mem: ((2 integer)): 2 <= 34
run: main 2: (((3 tagged-value)) <- ((save-type)) ((2 integer)))
mem: ((2 integer)) => 34
run: main 2: #(tagged record (integer 34)) => ((3 tagged-value))
mem: ((3 tagged-value)): 3 <= integer
mem: ((3 tagged-value)): 4 <= 34
run: main 3: (((1 channel-address) (deref)) <- ((write)) ((1 channel-address)) ((3 tagged-value)))
mem: ((1 channel-address)) => 1031
mem: ((3 tagged-value)) => #(tagged record (integer 34 . nil))
run: write/main 0: (((default-space space-address)) <- ((new)) ((space literal)) ((30 literal)))
run: write/main 0: 1043 => ((default-space space-address))
run: write/main 1: (((1 channel-address)) <- ((next-input)))
arg: nil 0 (1031 #(tagged record (integer 34 . nil)))
run: write/main 1: 1031 => ((1 channel-address))
mem: ((1 channel-address)): 1045 <= 1031
run: write/main 2: (((2 tagged-value)) <- ((next-input)))
arg: nil 1 (1031 #(tagged record (integer 34 . nil)))
run: write/main 2: #(tagged record (integer 34 . nil)) => ((2 tagged-value))
mem: ((2 tagged-value)): 1046 <= integer
mem: ((2 tagged-value)): 1047 <= 34
run: write/main 3: (((4 boolean)) <- ((full?)) ((1 channel-address) (deref)))
mem: ((1 channel-address) (deref)) => #(tagged record (0 0 1034 . nil))
run: full?/write/main 0: (((default-space space-address)) <- ((new)) ((space literal)) ((30 literal)))
run: full?/write/main 0: 1074 => ((default-space space-address))
run: full?/write/main 1: (((1 channel)) <- ((next-input)))
arg: nil 0 (#(tagged record (0 0 1034 . nil)))
run: full?/write/main 1: #(tagged record (0 0 1034 . nil)) => ((1 channel))
mem: ((1 channel)): 1076 <= 0
mem: ((1 channel)): 1077 <= 0
mem: ((1 channel)): 1078 <= 1034
run: full?/write/main 2: (((4 integer)) <- ((get)) ((1 channel)) ((1 offset)))
mem: ((1077 integer) (raw)) => 0
run: full?/write/main 2: 0 => ((4 integer))
mem: ((4 integer)): 1079 <= 0
run: full?/write/main 3: (((4 integer)) <- ((add)) ((4 integer)) ((1 literal)))
mem: ((4 integer)) => 0
run: full?/write/main 3: 1 => ((4 integer))
mem: ((4 integer)): 1079 <= 1
run: full?/write/main 4: (((5 integer)) <- ((capacity)) ((1 channel)))
mem: ((1 channel)) => #(tagged record (0 0 1034 . nil))
run: capacity/full?/write/main 0: (((default-space space-address)) <- ((new)) ((space literal)) ((30 literal)))
run: capacity/full?/write/main 0: 1105 => ((default-space space-address))
run: capacity/full?/write/main 1: (((1 channel)) <- ((next-input)))
arg: nil 0 (#(tagged record (0 0 1034 . nil)))
run: capacity/full?/write/main 1: #(tagged record (0 0 1034 . nil)) => ((1 channel))
mem: ((1 channel)): 1107 <= 0
mem: ((1 channel)): 1108 <= 0
mem: ((1 channel)): 1109 <= 1034
run: capacity/full?/write/main 2: (((4 tagged-value-array-address)) <- ((get)) ((1 channel)) ((2 offset)))
mem: ((1109 tagged-value-array-address) (raw)) => 1034
run: capacity/full?/write/main 2: 1034 => ((4 tagged-value-array-address))
mem: ((4 tagged-value-array-address)): 1110 <= 1034
run: capacity/full?/write/main 3: (((5 integer)) <- ((length)) ((4 tagged-value-array-address) (deref)))
array-len: ((4 tagged-value-array-address) (deref))
mem: ((1034 integer) (raw)) => 4
run: capacity/full?/write/main 3: 4 => ((5 integer))
mem: ((5 integer)): 1111 <= 4
run: capacity/full?/write/main 4: (((reply)) ((5 integer)))
mem: ((5 integer)) => 4
run: full?/write/main 4: 4 => ((5 integer))
mem: ((5 integer)): 1080 <= 4
run: full?/write/main 5: (((6 boolean)) <- ((less-than)) ((4 integer)) ((5 integer)))
mem: ((4 integer)) => 1
mem: ((5 integer)) => 4
run: full?/write/main 5: t => ((6 boolean))
mem: ((6 boolean)): 1081 <= t
run: full?/write/main 6: (((jump-if)) ((6 boolean)) ((1 offset)))
mem: ((6 boolean)) => t
run: full?/write/main 8: (((7 integer)) <- ((get)) ((1 channel)) ((0 offset)))
mem: ((1076 integer) (raw)) => 0
run: full?/write/main 8: 0 => ((7 integer))
mem: ((7 integer)): 1082 <= 0
run: full?/write/main 9: (((8 boolean)) <- ((equal)) ((7 integer)) ((4 integer)))
mem: ((7 integer)) => 0
mem: ((4 integer)) => 1
run: full?/write/main 9: nil => ((8 boolean))
mem: ((8 boolean)): 1083 <= nil
run: full?/write/main 10: (((reply)) ((8 boolean)))
mem: ((8 boolean)) => nil
run: write/main 3: nil => ((4 boolean))
mem: ((4 boolean)): 1048 <= nil
run: write/main 4: (((jump-unless)) ((4 boolean)) ((2 offset)))
mem: ((4 boolean)) => nil
run: write/main 7: (((6 tagged-value-array-address)) <- ((get)) ((1 channel-address) (deref)) ((2 offset)))
mem: ((1033 tagged-value-array-address) (raw)) => 1034
run: write/main 7: 1034 => ((6 tagged-value-array-address))
mem: ((6 tagged-value-array-address)): 1050 <= 1034
run: write/main 8: (((7 integer-address)) <- ((get-address)) ((1 channel-address) (deref)) ((1 offset)))
run: write/main 8: 1032 => ((7 integer-address))
mem: ((7 integer-address)): 1051 <= 1032
run: write/main 9: (((8 tagged-value-address)) <- ((index-address)) ((6 tagged-value-array-address) (deref)) ((7 integer-address) (deref)))
mem: ((7 integer-address) (deref)) => 0
array-len: ((1034 tagged-value-array) (raw))
mem: ((1034 integer) (raw)) => 4
run: write/main 9: 1035 => ((8 tagged-value-address))
mem: ((8 tagged-value-address)): 1052 <= 1035
run: write/main 10: (((8 tagged-value-address) (deref)) <- ((copy)) ((2 tagged-value)))
mem: ((2 tagged-value)) => #(tagged record (integer 34 . nil))
run: write/main 10: #(tagged record (integer 34 . nil)) => ((8 tagged-value-address) (deref))
mem: ((8 tagged-value-address) (deref)): 1035 <= integer
mem: ((8 tagged-value-address) (deref)): 1036 <= 34
run: write/main 11: (((7 integer-address) (deref)) <- ((add)) ((7 integer-address) (deref)) ((1 literal)))
mem: ((7 integer-address) (deref)) => 0
run: write/main 11: 1 => ((7 integer-address) (deref))
mem: ((7 integer-address) (deref)): 1032 <= 1
run: write/main 12: (((9 integer)) <- ((length)) ((6 tagged-value-array-address) (deref)))
array-len: ((6 tagged-value-array-address) (deref))
mem: ((1034 integer) (raw)) => 4
run: write/main 12: 4 => ((9 integer))
mem: ((9 integer)): 1053 <= 4
run: write/main 13: (((10 boolean)) <- ((less-than)) ((7 integer-address) (deref)) ((9 integer)))
mem: ((7 integer-address) (deref)) => 1
mem: ((9 integer)) => 4
run: write/main 13: t => ((10 boolean))
mem: ((10 boolean)): 1054 <= t
run: write/main 14: (((jump-if)) ((10 boolean)) ((1 offset)))
mem: ((10 boolean)) => t
run: write/main 16: (((reply)) ((1 channel-address) (deref) (same-as-arg 0)))
mem: ((1 channel-address) (deref) (same-as-arg 0)) => #(tagged record (0 1 1034 . nil))
run: main 3: #(tagged record (0 1 1034 . nil)) => ((1 channel-address) (deref))
mem: ((1 channel-address) (deref)): 1031 <= 0
mem: ((1 channel-address) (deref)): 1032 <= 1
mem: ((1 channel-address) (deref)): 1033 <= 1034
run: main 4: (((5 integer)) <- ((get)) ((1 channel-address) (deref)) ((0 offset)))
mem: ((1031 integer) (raw)) => 0
run: main 4: 0 => ((5 integer))
mem: ((5 integer)): 5 <= 0
run: main 5: (((6 integer)) <- ((get)) ((1 channel-address) (deref)) ((1 offset)))
mem: ((1032 integer) (raw)) => 1
run: main 5: 1 => ((6 integer))
mem: ((6 integer)): 6 <= 1
schedule: done with routine nil
== 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

# read all bytes from 'f' and store them into 's'
# abort if 's' is too small
slurp:  # f : (address buffered-file), s : (address stream byte)
    # pseudocode:
    #   while true
    #     if (s->write >= s->length) abort
    #     if (f->read >= f->write) populate stream from file
    #     if (f->write == 0) break
    #     AL = f->data[f->read]
    #     s->data[s->write] = AL
    #     ++f->read
    #     ++s->write
    # . prologue
    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
    56/push-esi
    57/push-edi
    # esi = f
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           6/r32/esi   8/disp8         .                 # copy *(ebp+8) to esi
    # ecx = f->read
    8b/copy                         1/mod/*+disp8   6/rm32/esi    .           .             .           1/r32/ecx   8/disp8         .                 # copy *(esi+8) to ecx
    # edi = s
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           7/r32/edi   0xc/disp8       .                 # copy *(ebp+12) to edi
    # edx = s->write
    8b/copy                         0/mod/indirect  7/rm32/edi    .           .             .           2/r32/edx   .               .                 # copy *edi to edx
$slurp:loop:
    # if (s->write >= s->length) abort
    3b/compare                      1/mod/*+disp8   7/rm32/edi    .           .             .           2/r32/edx   8/disp8         .                 # compare edx with *(edi+8)
    7d/jump-if-greater-or-equal  $slurp:abort/disp8
    # if (f->read >= f->write) populate stream from file
    3b/compare                      1/mod/*+disp8   6/rm32/esi    .           .             .           1/r32/ecx   4/disp8         .                 # compare ecx with *(esi+4)
    7c/jump-if-lesser  $slurp:from-stream/disp8
    # . clear-stream(stream = f+4)
    # . . push args
    8d/copy-address                 1/mod/*+disp8   6/rm32/esi    .           .             .           0/r32/eax   4/disp8         .                 # copy esi+4 to eax
    50/push-eax
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . f->read must now be 0; update its cache at ecx
    31/xor                          3/mod/direct    1/rm32/ecx    .           .             .           1/r32/ecx   .               .                 # clear ecx
    # . eax = read(f->fd, stream = f+4)
    # . . push args
    50/push-eax
    ff          6/subop/push        0/mod/indirect  6/rm32/esi    .           .             .           .           .               .                 # push *esi
    # . . call
    e8/call  read/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # if (f->write == 0) break
    # since f->read was initially 0, eax is the same as f->write
    # . if (eax == 0) return true
    3d/compare-eax-and  0/imm32
    74/jump-if-equal  $slurp:end/disp8
$slurp:from-stream:
    # var c/eax : byte = f->data[f->read]
    31/xor                          3/mod/direct    0/rm32/eax    .           .             .           0/r32/eax   .               .                 # clear eax
    8a/copy-byte                    1/mod/*+disp8   4/rm32/sib    6/base/esi  1/index/ecx   .           0/r32/AL    0x10/disp8      .                 # copy byte at *(esi+ecx+16) to AL
    # s->data[s->write] = c
    88/copy-byte                    1/mod/*+disp8   4/rm32/sib    7/base/edi  2/index/edx   .           0/r32/AL    0xc/disp8       .                 # copy AL to *(edi+edx+12)
    # ++f->read
    41/increment-ecx
    # ++s->write
    42/increment-edx
    eb/jump  $slurp:loop/disp8
$slurp:end:
    # save f->read
    89/copy                         1/mod/*+disp8   6/rm32/esi    .           .             .           1/r32/ecx   8/disp8         .                 # copy ecx to *(esi+8)
    # save s->write
    89/copy                         0/mod/indirect  7/rm32/edi    .           .             .           2/r32/edx   .               .                 # copy edx to *edi
    # . restore registers
    5f/pop-to-edi
    5e/pop-to-esi
    5a/pop-to-edx
    59/pop-to-ecx
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

$slurp:abort:
    # . _write(2/stderr, error)
    # . . push args
    68/push  "slurp: destination too small\n"/imm32
    68/push  2/imm32/stderr
    # . . call
    e8/call  _write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # . syscall(exit, 1)
    bb/copy-to-ebx  1/imm32
    b8/copy-to-eax  1/imm32/exit
    cd/syscall  0x80/imm8
    # never gets here

test-slurp:
    # 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-buffered-file->buffer)
    # . . push args
    68/push  $_test-buffered-file->buffer/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-tmp-stream)
    # . . push args
    68/push  _test-tmp-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
    # write(_test-stream, "ab\ncd")
    # . . push args
    68/push  "ab\ncd"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # read a line from _test-stream (buffered by _test-buffered-file) into _test-tmp-stream
    # . eax = slurp(_test-buffered-file, _test-tmp-stream)
    # . . push args
    68/push  _test-tmp-stream/imm32
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  slurp/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # check-stream-equal(_test-tmp-stream, "ab\ncd", msg)
    # . . push args
    68/push  "F - test-slurp"/imm32
    68/push  "ab\ncd"/imm32
    68/push  _test-tmp-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # end
    c3/return

# . . vim:nowrap:textwidth=0