Néstor Soriano Konamiman

The MSX SD-ROM format

Specification version 1 — draft

1. Introduction

1.1 Purpose

SD-ROM is a way to distribute MSX software, mainly games, on SD cards or other modern storage media. It mimics the environment of a ROM cartridge game. A cartridge with an SD card slot and an SD-ROM BIOS can run any SD-ROM game by just swapping the card, much as Bee Cards worked in the 1980s. The same format also allows cartridges with an embedded card that look like a regular ROM cartridge to users (dedicated cartridges, see 6.8), and cartridges that combine an SD-ROM BIOS with other firmware such as Nextor.

Zenbu: an all-in-one MSX cartridge

Status: design proposal. Nothing has been built yet. This document describes the intended design so that MSX users can judge whether it's worth having and hardware people can judge whether it's worth building. Part numbers, prices and register layouts are proposals and may change during validation and prototyping. Feedback is welcome.

	#!/usr/bin/env bash
	#
	# Create a draft GitHub release from pull requests targeting a milestone.
	#
	# Usage: create-github-release <repo> <milestone> [options]
	#
	# Arguments:
	# repo Repository URL or user/repo format
	# milestone Milestone name to collect PRs from
	#

	#!/bin/bash

	# chgcount.sh - Count lines added/modified and deleted in git diff
	#
	# Usage: chgcount.sh [OPTIONS]
	#
	# Options:
	# -p, --pattern PATTERN File pattern to check (default: all files)
	# Use **/ prefix for recursive matching in subdirectories
	# -f, --files FILES Explicit space-separated list of files to check

	<?php
	/**
	* Simple file-based WordPress object cache implementation.
	*
	* Drop this file in wp-content/ to enable persistent object caching.
	* Each cache group stores its data in a separate file using PHP serialization.
	* Files will go in WP_CONTENT_DIR . '/cache/object-cache', or if
	* no WP_CONTENT_DIR constant is defined, in '/tmp/wp-object-cache'.
	*
	* This file is provided as-is without warranty of any kind.

	#!/bin/bash

	# WooCommerce Worktree Management Script
	# By Konamiman (and Claude)

	set -e

	WOO_REPO="$HOME/woocommerce"
	WOO_CORE="$WOO_REPO/plugins/woocommerce"
	WOO_WORKTREES="$HOME/worktrees"

	<?php

	/**
	* Apply a diff to a text composed of multiple lines.
	*
	* The diff is expected to be in unified format (https://www.gnu.org/software/diffutils/manual/html_node/Unified-Format.html)
	* but for a single file (so there are no file names and the first line starts with "@@" already).
	*
	* The approach followed is probably not the most efficient possible, but the code is small and gets the job done.
	*

	using System;
	using System.Globalization;
	using System.Linq;
	using System.Numerics;
	using System.Security.Cryptography;

	class Example
	{
	public static void Main()
	{

Z80	74HC688	CH376
5V	5V	5V
GND	GND	GND
D7...D0		D7...D0
RD		RD
WR		WR
A0		A0

Néstor Soriano Konamiman

The MSX SD-ROM format

1. Introduction

1.1 Purpose

Zenbu: an all-in-one MSX cartridge

Contents