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// C64 sprite example with llvm-mos.
// Jukka Jylänki. Released to public domain.
// Build with -Oz -DNDEBUG for smallest code size (640 bytes).
#include <stdint.h>
#include <stdio.h>

static void TestAssert(bool condition, const char *str, const char *file, int line, const char *func)
{
#ifndef NDEBUG // Build with -DNDEBUG to remove this bloating code size
  if (!condition) {

juj

#include <stdarg.h>

#include "c64/c64_kernal.h"

// Prints the given uint16 to CHROUT.
static void chrout_u16(uint16_t num)
{
  uint8_t zp0, zp1, zp2;
  __asm__(R"(
    SED // Enter BCD mode (affects ADC commands below)

juj

#pragma once

// C64 KERNAL ROM functions

#include <stdint.h>
#include "mystdio.h"

#ifdef __C64__

// TODO: Might want to use this form, but can't due to https://github.com/llvm-mos/llvm-mos/issues/392

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struct Sphere
{
  float2 pos;
  float radius;
};

struct ArcSector
{
  float2 pos;
  float radius;

juj

mergeInto(LibraryManager.library, {
  preloaded_audio: {},
  preload_audio__deps: ['preloaded_audio'],
  preload_audio: function(id, url) {
    let audio = new Audio(UTF8ToString(url));
    _preloaded_audio[id] = audio;
    audio.preload = 'auto';
  },
  play_audio: function(id, loop) {
    let audio = _preloaded_audio[id];

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#include <emscripten/webaudio.h>
#include <emscripten/em_math.h>
float phase = 0.f;
EM_BOOL ProcessAudio(int numInputs, const AudioSampleFrame *inputs,
                     int numOutputs, AudioSampleFrame *outputs,
                     int numParams, const AudioParamFrame *params, void *userData) {
  for(int i = 0; i < 128; ++i) {
    outputs[0].data[i] = emscripten_math_sin(phase);
    phase = emscripten_math_fmod(phase + 0.05f, 2.f * EM_MATH_PI);
  }

juj

// License: public domain.

#include <dos.h>
#include <conio.h>

void set_video_mode(int mode)
{
	union REGS regs;
	regs.x.ax = mode;
	int86(0x10, &regs, &regs);

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# Usage: python cube_folding.py input.txt
import math, sys

lines = open(sys.argv[1] if len(sys.argv) > 1 else 'input.txt', 'r').read().split('\n')

# Remove instructions line from input
lines = lines[:-1]
if len(lines[-1]) == 0: lines.pop() # Remove possible empty line between map and instructions

# Compute cube surface area

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#include <stdio.h>
#include <stdlib.h>
#include <memory.h>

char *read_file_to_string(const char *filename)
{
  FILE *handle = fopen(filename, "r");
  fseek(handle, 0, SEEK_END);
  long size = ftell(handle);
  fseek(handle, 0, SEEK_SET);

juj

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

char *read_file_to_string(const char *filename)
{
  FILE *handle = fopen(filename, "r");
  fseek(handle, 0, SEEK_END);
  long size = ftell(handle);
  fseek(handle, 0, SEEK_SET);