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authorelioat <{ID}+{username}@users.noreply.github.com>2024-06-13 15:58:39 -0400
committerelioat <{ID}+{username}@users.noreply.github.com>2024-06-13 15:58:39 -0400
commit4b1fb59f84a586cab926dec491e75e3174bae541 (patch)
tree84f0743bf8c652d0e7088b3081f83ecfa45e1f1a /js/magic-bird/imgs/extracted-1688-map/MapParts/towns/97.png
parent7bc40a35ef259798c9e76b1cf084f5b52b4ec64a (diff)
downloadtour-4b1fb59f84a586cab926dec491e75e3174bae541.tar.gz
*
Diffstat (limited to 'js/magic-bird/imgs/extracted-1688-map/MapParts/towns/97.png')
0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-20 02:48:10 +0000


 


d.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
# String comparison: return 1 iff the two args passed in at the commandline are equal.
#
# To run:
#   $ ./bootstrap translate init.linux apps/ex10.subx -o apps/ex10
#   $ ./bootstrap run apps/ex10 abc abd
# Expected result:
#   $ echo $?
#   0  # false

== 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:  # return argv-equal(argv[1], argv[2])
#       At the start of a SubX program:
#         argc: *esp
#         argv[0]: *(esp+4)
#         argv[1]: *(esp+8)
#         ...
    # . prologue
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # argv-equal(argv[1], argv[2])
    # . . push argv[2]
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           0xc/disp8       .                 # push *(ebp+12)
    # . . push argv[1]
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call argv-equal/disp32
    # exit(eax)
    89/copy                         3/mod/direct    3/rm32/ebx    .           .             .           0/r32/eax   .               .                 # copy eax to ebx
    e8/call  syscall_exit/disp32

# compare two null-terminated ascii strings
# reason for the name: the only place we should have null-terminated ascii strings is from commandline args
argv-equal:  # (s1, s2): null-terminated ascii strings -> eax: boolean
    # initialize s1 (ecx) and s2 (edx)
    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/esp  4/index/none  .           1/r32/ecx   4/disp8         .                 # copy *(esp+4) to ecx
    8b/copy                         1/mod/*+disp8   4/rm32/sib    4/base/esp  4/index/none  .           2/r32/edx   8/disp8         .                 # copy *(esp+8) to edx
$argv-equal:loop:
    # c1/eax, c2/ebx = *s1, *s2
    b8/copy-to-eax  0/imm32
    8a/copy-byte                    0/mod/indirect  1/rm32/ecx    .           .             .           0/r32/AL    .               .                 # copy byte at *ecx to AL
    bb/copy-to-ebx  0/imm32
    8a/copy-byte                    0/mod/indirect  2/rm32/edx    .           .             .           3/r32/BL    .               .                 # copy byte at *edx to BL
    # if (c1 == 0) break
    3d/compare-eax-and  0/imm32/null
    74/jump-if-=  $argv-equal:break/disp8
    # if (c1 != c2) return false
    39/compare                      3/mod/direct    0/rm32/eax    .           .             .           3/r32/ebx   .               .                 # compare eax and ebx
    75/jump-if-!=  $argv-equal:false/disp8
    # ++s1, ++s2
    41/increment-ecx
    42/increment-edx
    # end while
    eb/jump  $argv-equal:loop/disp8
$argv-equal:break:
    # if (c2 == 0) return true
    81          7/subop/compare     3/mod/direct    3/rm32/ebx    .           .             .           .           .               0/imm32/null      # compare ebx
    75/jump-if-!=  $argv-equal:false/disp8
$argv-equal:success:
    b8/copy-to-eax  1/imm32
    c3/return
    # return false
$argv-equal:false:
    b8/copy-to-eax  0/imm32
    c3/return

# . . vim:nowrap:textwidth=0