nickdesaulniers

// Compile me with: clang -c mul.c -o mul.o
int mul (int a, int b) {
  return a * b;
}

nickdesaulniers

$ gobjdump -j .text -d mul.o -M intel

Disassembly of section .text:

0000000000000000 <_mul>:
   0:  55                   	push   rbp
   1:	48 89 e5             	mov    rbp,rsp
   4:	89 7d fc             	mov    DWORD PTR [rbp-0x4],edi
   7:	89 75 f8             	mov    DWORD PTR [rbp-0x8],esi
   a:	8b 75 fc             	mov    esi,DWORD PTR [rbp-0x4]

nickdesaulniers

#include <stdio.h> // printf
#include <string.h> // memcpy
#include <sys/mman.h> // mmap, munmap

int main () {
  // Hexadecimal x86_64 machine code for: int mul (int a, int b) { return a * b; }
  unsigned char code [] = {
    0x55,                   // push rbp
    0x48, 0x89, 0xe5,       // mov  rbp, rsp
    0x89, 0x7d, 0xfc,       // mov  DWORD PTR [rbp-0x4],edi

nickdesaulniers

n add_three (x: int) -> int {
  3 + x
}

fn double (x: int) -> int {
  2 * x
}

#[no_mangle]
pub extern fn meaning_of_life () -> int {

nickdesaulniers

undefined:175
    return typeData.flatSize*8;
                   ^
TypeError: Cannot read property 'flatSize' of undefined
    at getBits (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:175:20)
    at isIllegalType (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:181:14)
    at parseNumerical (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:809:39)
    at parseParamTokens (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:391:28)
    at Object.substrate.addActor.processItem (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:553:20)
    at Object._lineSplitter [as processItem] (eval at globalEval (/Users/Nicholas/mozilla/emscripten/src/compiler.js:105:8), <anonymous>:118:35)

nickdesaulniers

; ModuleID = 'hello_world.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin"

%tydesc = type { i64, i64, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, void ({}*, %tydesc**, i8*)*, i8*, i8* }

@_rust_crate_map_toplevel = global { i32, i8*, i64, [2 x i64] } { i32 1, i8* bitcast ({} ({ i64, %tydesc*, i8*, i8*, i8 } addrspace(1)*)* @_ZN7cleanup10annihilate17_c17425bfbdabf8296_07preE to i8*), i64 ptrtoint ([1 x { i64, i64 }]* @_rust_mod_map to i64), [2 x i64] [i64 ptrtoint (i64* @_rust_crate_map_std_0.7-pre_c3ca5d77d81b46c1 to i64), i64 0] }
@_rust_crate_map_std_0.7-pre_c3ca5d77d81b46c1 = external global i64
@_rust_mod_map = internal global [1 x { i64, i64 }] zeroinitializer
@rust_abi_version = constant i64 1

nickdesaulniers

EMCC_DEBUG=1 emcc hello_world.bc -s EXPORTED_FUNCTIONS="['_meaning_of_life']"

DEBUG    emcc: invocation: /usr/local/bin/emcc hello_world.bc -s EXPORTED_FUNCTIONS=['_meaning_of_life']
WARNING  root: LLVM version appears incorrect (seeing "Apple LLVM version 4.2 (clang-425.0.27) (based on LLVM 3.2svn)", expected "clang version 3.2")
INFO     root: (Emscripten: Running sanity checks)
DEBUG    emcc: compiling to bitcode
DEBUG    emcc: copying bitcode file: hello_world.bc
DEBUG    emcc: will generate JavaScript
DEBUG    emcc: considering libcxx: we need set([]) and have set([])
DEBUG    emcc: considering libcextra: we need set([]) and have set([])

nickdesaulniers

http = require 'http'
csv = require 'csv'

if process.argv.length is 2
  url = 'http://ichart.finance.yahoo.com/table.csv?s=TSLA&a=07&b=28&c=2013&d=07&e=29&f=2013&g=d'
else if process.argv.length is 5
  [_, _, symbol, start, end] = process.argv
  [[a, b, c], [d, e, f]] = [start.split('-'), end.split('-')]
  console.log a, b, c, d, e, f
  url = "http://ichart.finance.yahoo.com/table.csv?s=#{symbol}&a=#{--a}&b=#{b}&c=#{c}&d=#{--d}&e=#{e}&f=#{f}&g=d"

nickdesaulniers

; ModuleID = 'Crystal'

%String.0 = type { i32, i8 }
%MatchData = type { %String.0*, %String.0*, i32, i32*, i32 }
%StringBuilder.1 = type { i32, %"Array(String).2"* }
%"Array(String).2" = type { i32, i32, %String.0** }
%"struct.ABI::UnwindException" = type { i64, i64, i64, i64, i64, i32 }
%"Nil | UInt64" = type <{ i32, [2 x i32] }>

@symbol_table = internal global [0 x %String.0*] zeroinitializer

nickdesaulniers

var lastKnownLanguage = navigator.language;

document.addEventListener("visibilitychange", function () {
  if (document.visibilityState === "visible" &&
      navigator.language !== lastKnownLanguage) {
    // retranslate
  }
});