Mu - 125write-stream-data.subx

From 3350c34a74844e21ea69077e01efff3bae64bdcd Mon Sep 17 00:00:00 2001 From: Kartik Agaram Date: Tue, 23 Mar 2021 17:31:08 -0700 Subject: . --- html/125write-stream-data.subx.html | 177 ------------------------------------ 1 file changed, 177 deletions(-) delete mode 100644 html/125write-stream-data.subx.html (limited to 'html/125write-stream-data.subx.html') diff --git a/html/125write-stream-data.subx.html b/html/125write-stream-data.subx.html deleted file mode 100644 index bae56597..00000000 --- a/html/125write-stream-data.subx.html +++ /dev/null @@ -1,177 +0,0 @@ - - - - -Mu - 125write-stream-data.subx - - - - - - - - - - -https://github.com/akkartik/mu/blob/main/125write-stream-data.subx -

-  1 == code
-  2 #   instruction                     effective address                                                   register    displacement    immediate
-  3 # . op          subop               mod             rm32          base        index         scale       r32
-  4 # . 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
-  5 
-  6 # write an entire stream's contents to a buffered-file
-  7 # ways to do this:
-  8 #   - construct a 'maximal slice' and pass it to write-slice-buffered
-  9 #   - flush the buffered-file and pass the stream directly to its fd (disabling buffering)
- 10 # we'll go with the first way for now
- 11 write-stream-data:  # f: (addr buffered-file), s: (addr stream byte)
- 12     # . prologue
- 13     55/push-ebp
- 14     89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
- 15     # . save registers
- 16     50/push-eax
- 17     51/push-ecx
- 18     56/push-esi
- 19     # esi = s
- 20     8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           6/r32/esi   0xc/disp8       .                 # copy *(ebp+12) to esi
- 21     # var slice/ecx: slice = {s->data, &s->data[s->write]}
- 22     # . push &s->data[s->write]
- 23     8b/copy                         0/mod/indirect  6/rm32/esi    .           .             .           0/r32/eax   .               .                 # copy *esi to eax
- 24     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
- 25     50/push-eax
- 26     # . push s->data
- 27     8d/copy-address                 1/mod/*+disp8   6/rm32/esi    .           .             .           0/r32/eax   0xc/disp8       .                 # copy esi+12 to eax
- 28     50/push-eax
- 29     # . ecx = esp
- 30     89/copy                         3/mod/direct    1/rm32/ecx    .           .             .           4/r32/esp   .               .                 # copy esp to ecx
- 31     # write-slice-buffered(f, slice)
- 32     # . . push args
- 33     51/push-ecx
- 34     ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
- 35     # . . call
- 36     e8/call  write-slice-buffered/disp32
- 37     # . . discard args
- 38     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
- 39 $write-stream-data:end:
- 40     # . restore locals
- 41     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
- 42     # . restore registers
- 43     5e/pop-to-esi
- 44     59/pop-to-ecx
- 45     58/pop-to-eax
- 46     # . epilogue
- 47     89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
- 48     5d/pop-to-ebp
- 49     c3/return
- 50 
- 51 test-write-stream-data:
- 52     # . prologue
- 53     55/push-ebp
- 54     89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
- 55     # setup
- 56     # . clear-stream(_test-output-stream)
- 57     # . . push args
- 58     68/push  _test-output-stream/imm32
- 59     # . . call
- 60     e8/call  clear-stream/disp32
- 61     # . . discard args
- 62     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
- 63     # . clear-stream($_test-output-buffered-file->buffer)
- 64     # . . push args
- 65     68/push  $_test-output-buffered-file->buffer/imm32
- 66     # . . call
- 67     e8/call  clear-stream/disp32
- 68     # . . discard args
- 69     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
- 70     # . clear-stream(_test-input-stream)
- 71     # . . push args
- 72     68/push  _test-input-stream/imm32
- 73     # . . call
- 74     e8/call  clear-stream/disp32
- 75     # . . discard args
- 76     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
- 77     # initialize input
- 78     # . write(_test-input-stream, "abcd")
- 79     # . . push args
- 80     68/push  "abcd"/imm32
- 81     68/push  _test-input-stream/imm32
- 82     # . . call
- 83     e8/call  write/disp32
- 84     # . . discard args
- 85     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
- 86     # write-stream-data(_test-output-buffered-file, _test-input-stream)
- 87     # . . push args
- 88     68/push  _test-input-stream/imm32
- 89     68/push  _test-output-buffered-file/imm32
- 90     # . . call
- 91     e8/call  write-stream-data/disp32
- 92     # . . discard args
- 93     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
- 94     # check that the write happened as expected
- 95     # . flush(_test-output-buffered-file)
- 96     # . . push args
- 97     68/push  _test-output-buffered-file/imm32
- 98     # . . call
- 99     e8/call  flush/disp32
-100     # . . discard args
-101     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
-102     # . check-stream-equal(_test-output-stream, "abcd", msg)
-103     # . . push args
-104     68/push  "F - test-write-stream-data"/imm32
-105     68/push  "abcd"/imm32
-106     68/push  _test-output-stream/imm32
-107     # . . call
-108     e8/call  check-stream-equal/disp32
-109     # . . discard args
-110     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
-111     # . epilogue
-112     89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
-113     5d/pop-to-ebp
-114     c3/return
-

- - - -- cgit 1.4.1-2-gfad0