andersonsp

Papers

• https://www.cs.unm.edu/~crowley/papers/sds.pdf
• https://web.mit.edu/2.998/www/QuaternionReport1.pdf
• https://people.freebsd.org/~lstewart/articles/programming_from_the_ground_up.pdf

Floating point

• https://fgiesen.wordpress.com/2012/03/28/half-to-float-done-quic/
• https://www.corsix.org/content/converting-fp32-to-fp16
• http://www.cburch.com/books/float/

andersonsp

Basic Neovim Configuration from scratch

The directory structure

nvim/
  after/
  | ftplugin/
  |   lua.lua
 | rb.lua

andersonsp

program : statement_seq

statement_seq : statement {sep statement}

statement : var_decl
          | class_decl
          | method_decl
          | "if" expression opt_then statement_seq ["else" statement_seq] "end"
          | "while" expression opt_do statement_seq "end"
          | "return" expression

andersonsp

// Compiler
//
static void endScope() {
    current->scopeDepth--;

    while (current->localCount > 0 &&
                 current->locals[current->localCount - 1].depth >
                        current->scopeDepth) {

        if (current->locals[current->localCount - 1].isCaptured) {

andersonsp

Rails React GraphQL Typescript Apollo [^1] [^2] [^3] [^4] [^5]

Base installation

# Create a new rails project
$ rails new my_app -j esbuild -c tailwind
$ cd my_app

# Add Sorbet
$ bundle add sorbet-static-and-runtime

andersonsp

Commands

Insert

• 'i': Insert text before cursor
• 'I': Insert at beginning of line
• 'a': Append text after cursor
• 'A': Append thext at end of line
• 'o': Add new line after current
• 'O': Add new line before current

andersonsp

package io.andersonsp.ulid

import scala.util.{Failure, Success, Try}
import java.security.SecureRandom

//  The components are encoded as 16 octets. Each component is encoded with the Most Significant Byte first (network byte order).
//  0                   1                   2                   3
//  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
//  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
//  |                      32_bit_uint_time_high                    |

andersonsp

// Uncompressed version of
// https://gist.github.com/munificent/b1bcd969063da3e6c298be070a22b604

#include <time.h>    // Robert Nystrom
#include <stdio.h>   // @munificentbob
#include <stdlib.h>  //      for Ginny
#include <stdbool.h> //      2008-2019

const int HEIGHT = 40;
const int WIDTH = 80;

andersonsp

# roxlu - 2019-08-04 - Blender 2.8
# ------------------------------------------------
# Very basic script that exports the vertices of the selected object
# to a .h and .cpp that you can use into your graphics app directly.
# Vertices are rotated to Y-up, -Z forward, following common OpenGL.
#
#
# Version:
# ------------------------------------------------
# v0.0.0  - 2019-08-04:   First release 

andersonsp

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

enum {
  CW_LIT, CW_COMPILE, CW_CALL, CW_JMP,
  CW_DEF, CW_IMM, CW__TOK, CW__EXEC, CW_EXIT, CW_ECHO,
  CW_LAST
};