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https://github.com/jart/cosmopolitan.git
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f4f4caab0e
I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
96 lines
7.8 KiB
ArmAsm
96 lines
7.8 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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.rodata
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.align 16
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.source __FILE__
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/ ibm cp437 unicode table w/ string literal safety
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/
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/ ░▄██▒▄█ ▐██ ░░░ ▀▀████▒▀█▄
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/ ▐███▓██░ ██▌ ▀████▄■█▄
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/ ▐█▓███▀█░██▀ ░ ░▀█████▓▄
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/ ▐█▓██▀▄█▒██▀ ▄▄░ ▄▄▄ ░░░ ░▀████▒▄
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/ ▐████▀▄█■█▀ ▀▀ ░█████░
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/ ▐█▓█▀████▀ ░ ▐▓███▒
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/ █░███▀▀ ░░░ ▄█ ░░░ █████
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/ ▐█▓█░▀▀ ░░▄█▄▄▄▄▄ ▀▄ ▌▄▄▄░▄▄▄▄▄ ▐████░
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/ ▐███▌ ▄▀█████████▄ ▌▐▄████████▄ ▐▓███░
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/ ▐███░░░▀▄█▀▄▄████▄▀░ ▐████████▒ ▀ ░███░
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/ ░████░ ▓▀ ▄███████▀▌ ▀▄■████▀▀█▀ ██▀█
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/ ▓███░ ░▄▀▀░░░ ▀ ░░▌ ▄▀▀▄░░▀░▄▀▄ ▐██▀▄
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/ ░███░ ▄▓▓▄▄░▀▀█▀█ ▌░░ ▀█▀█▀▀ ▐██▀
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/ █▀▄▐██ ▀░░ ▄▀ ▐ █ ▀ ▄▄▄░ ░▀▄█▄▀█
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/ ▌▄ █▓ ▒ ░ █▄█▄▀▄▄▄███▄▀▄ ░░ ░ ▀ █▌
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/ █▌▄░▌ ░░░▄▀█▀███████▄▀▄▀▄▀▀▄▄▄ █▀█░▐
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/ ██▄ ░░░▄█▄▀██▄█■██████▄█▄█▄■▀█░ ▐░▐
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/ ▀██░ ░▄██████████████████▄█▄█ ░█ ░ ▄▀
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/ ▀▓█▄▓░░ ▒█▀█████████████████████▒ ██▀
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/ ▀███ ▓▒ ██████████████▀▀▀▀█▄▀ ░▄█▒
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/ ▀███ ▀█▄▀▄█████▀▀ ▓▓▓▄░ ▐ ░▄██
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/ ▀██ ▄███████▄████████▀░░ ░▄██
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/ ▄██▀▀▄ █▄▀▄██▒▒███████████▀▀▀▄░ ░███░
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/ ▄██▀▄▄░░▀▐▄████▄ █████▀▄░░█▀▄▀░░ ▄██░
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/ █████▄▄▄███▀░█▌██▄▀▀█████▄▄░░░▄▄███▀██▄ ▄▀▀▀▄▄
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/ ▀██████▀■▄█▄▄ ░▀███████████████▓▓░░▄██▀▄████▄▄▀▄
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/
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/ █▀█ █ █▀█ █▀█ █▄▀ ▐▀█▀▌█▀█ █▀█ █▄ █ ▀█▀ █▀█ █▀▀
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/ █▀▄ █ █ █ █ █ ▀▄ █ █▀▄ █ █ █ ▀█ █ █ ▀▀█
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/ █▄█ █▄▌█▄█ █▄█ █ █ █ █ █ █▄█ █ █ ▄█▄ █▄█ █▄█
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/
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/ THERE WILL BE BLOCKS march 01 2017
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/
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/ @see libc/str/str.h
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/ @see kCp437i[]
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kCp437:
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.short 0x00a0,0x263a,0x263b,0x2665,0x2666,0x2663,0x2660,0x2022 #00: ☺☻♥♦♣♠•
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.short 0x25d8,0x25cb,0x25d9,0x2642,0x2640,0x266a,0x266b,0x263c #08:◘○◙♂♀♪♫☼
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.short 0x25ba,0x25c4,0x2195,0x203c,0x00b6,0x00a7,0x25ac,0x21a8 #10:►◄↕‼¶§▬↨
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.short 0x2191,0x2193,0x2192,0x2190,0x221f,0x2194,0x25b2,0x25bc #18:↑↓→←∟↔▲▼
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.short 0x0020,0x0021,0x201c,0x0023,0x0024,0x0025,0x0026,0x2018 #20: !“#$%&‘
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.short 0x0028,0x0029,0x002a,0x002b,0x002c,0x002d,0x002e,0x002f #28:()*+,-./
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.short 0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037 #30:01234567
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.short 0x0038,0x0039,0x003a,0x003b,0x003c,0x003d,0x003e,0x2047 #38:89:;<=>⁇
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.short 0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047 #40:@ABCDEFG
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.short 0x0048,0x0049,0x004a,0x004b,0x004c,0x004d,0x004e,0x004f #48:HIJKLMNO
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.short 0x0050,0x0051,0x0052,0x0053,0x0054,0x0055,0x0056,0x0057 #50:PQRSTUVW
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.short 0x0058,0x0059,0x005a,0x005b,0x005c,0x005d,0x005e,0x005f #58:XYZ[\]^_
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.short 0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067 #60:`abcdefg
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.short 0x0068,0x0069,0x006a,0x006b,0x006c,0x006d,0x006e,0x006f #68:hijklmno
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.short 0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077 #70:pqrstuvw
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.short 0x0078,0x0079,0x007a,0x007b,0x007c,0x007d,0x007e,0x2302 #78:xyz{|}~⌂
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.short 0x00c7,0x00fc,0x00e9,0x00e2,0x00e4,0x00e0,0x00e5,0x00e7 #80:Çüéâäàåç
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.short 0x00ea,0x00eb,0x00e8,0x00ef,0x00ee,0x00ec,0x00c4,0x00c5 #88:êëèïîìÄÅ
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.short 0x00c9,0x00e6,0x00c6,0x00f4,0x00f6,0x00f2,0x00fb,0x00f9 #90:ÉæÆôöòûù
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.short 0x00ff,0x00d6,0x00dc,0x00a2,0x00a3,0x00a5,0x20ac,0x0192 #98:ÿÖÜ¢£¥€ƒ
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.short 0x00e1,0x00ed,0x00f3,0x00fa,0x00f1,0x00d1,0x00aa,0x00ba #a0:áíóúñѪº
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.short 0x00bf,0x2310,0x00ac,0x00bd,0x00bc,0x00a1,0x00ab,0x00bb #a8:¿⌐¬½¼¡«»
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.short 0x2591,0x2592,0x2593,0x2502,0x2524,0x2561,0x2562,0x2556 #b0:░▒▓│┤╡╢╖
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.short 0x2555,0x2563,0x2551,0x2557,0x255d,0x255c,0x255b,0x2510 #b8:╕╣║╗╝╜╛┐
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.short 0x2514,0x2534,0x252c,0x251c,0x2500,0x253c,0x255e,0x255f #c0:└┴┬├─┼╞╟
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.short 0x255a,0x2554,0x2569,0x2566,0x2560,0x2550,0x256c,0x2567 #c8:╚╔╩╦╠═╬╧
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.short 0x2568,0x2564,0x2565,0x2559,0x2558,0x2552,0x2553,0x256b #d0:╨╤╥╙╘╒╓╫
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.short 0x256a,0x2518,0x250c,0x2588,0x2584,0x258c,0x2590,0x2580 #d8:╪┘┌█▄▌▐▀
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.short 0x03b1,0x00df,0x0393,0x03c0,0x03a3,0x03c3,0x03bc,0x03c4 #e0:αßΓπΣσμτ
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.short 0x03a6,0x0398,0x03a9,0x03b4,0x221e,0x03c6,0x03b5,0x2229 #e8:ΦΘΩδ∞φε∩
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.short 0x2261,0x00b1,0x2265,0x2264,0x2320,0x2321,0x00f7,0x2248 #f0:≡±≥≤⌠⌡÷≈
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.short 0x00b0,0x2219,0x00b7,0x221a,0x207f,0x00b2,0x25a0,0x03bb #f8:°∙·√ⁿ²■λ
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.endobj kCp437,globl
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.previous
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