added option "display_tags_in_all_columns" - ranger - mirror of ranger

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author	hut <hut@lavabit.com>	2011-05-08 17:07:08 +0200
committer	hut <hut@lavabit.com>	2011-05-08 17:07:08 +0200
commit	e690d4e989cb52a73cfd3c141a6388aded4b4a8c (patch)
tree	6955a01eec0020cdc818f07909adc42d7d75fdb7 /doc/TODO
parent	efcdbb775a468c4c815ef56ada7320beda9dd931 (diff)
download	ranger-e690d4e989cb52a73cfd3c141a6388aded4b4a8c.tar.gz

added option "display_tags_in_all_columns"

Diffstat (limited to 'doc/TODO')

0 files changed, 0 insertions, 0 deletions

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# _write: write to a file descriptor (fd)

== 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

Entry:  # just exit; can't test _write just yet
    # . syscall(exit, 0)
    bb/copy-to-ebx  0/imm32
    b8/copy-to-eax  1/imm32/exit
    cd/syscall  0x80/imm8

_write:  # fd : int, s : (address array byte)
    # . 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
    53/push-ebx
    # syscall(write, fd, (data) s+4, (size) *s)
    # . fd : ebx
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           3/r32/ebx   8/disp8         .                 # copy *(ebp+8) to ebx
    # . data : ecx = s+4
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           1/r32/ecx   0xc/disp8       .                 # copy *(ebp+12) to ecx
    81          0/subop/add         3/mod/direct    1/rm32/ecx    .           .             .           .           .               4/imm32           # add to ecx
    # . size : edx = *s
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           2/r32/edx   0xc/disp8       .                 # copy *(ebp+12) to edx
    8b/copy                         0/mod/indirect  2/rm32/edx    .           .             .           2/r32/edx   .               .                 # copy *edx to edx
    # . syscall
    b8/copy-to-eax  4/imm32/write
    cd/syscall  0x80/imm8
    # if (eax < 0) abort
    3d/compare-eax-with  0/imm32
    0f 8c/jump-if-lesser  $_write:abort/disp32
$_write:end:
    # . restore registers
    5b/pop-to-ebx
    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

$_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)
    bb/copy-to-ebx  0xff/imm32
    b8/copy-to-eax  1/imm32/exit
    cd/syscall  0x80/imm8
    # never gets here

# . . vim:nowrap:textwidth=0


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