Robert Hargreaves rhargreaves

A comprehensive view of the SEGA Mega Drive's address space of itself and popular add-ons, for purposes of identifying clashes.

Component	Function	Address Start	Address End
Console	ROM Bank 0	0x000000	0x07FFFF
	ROM Bank 1	0x080000	0x0FFFFF
	ROM Bank 2	0x100000	0x17FFFF
	ROM Bank 3	0x180000	0x1FFFFF
	ROM Bank 4	0x200000	0x27FFFF
	ROM Bank 5	0x280000	0x2FFFFF

Mega EverDrive PRO Overview

The Mega EverDrive PRO has a USB port (much like the EverDrive X7) which allows you to send arbitary data to the Mega Drive over USB. With the X7 you could simply send data to the USB serial device and pick it up at a specific memory mapped location on the Mega Drive. With the PRO, however, you need to wrap the data in a "command" and send it over the USB serial device, so that it will be available to the Mega Drive.

The following information was obtained by reading the source contained in the MEGA-PRO repo.

Command Message Format

Keybase proof

I hereby claim:

I am rhargreaves on github.
I am roberthargreaves (https://keybase.io/roberthargreaves) on keybase.
I have a public key ASAcaSxUcY9cWa45izkCTVp5efiThJ7GzTqOPgEdMcmO9Ao

To claim this, I am signing this object:

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd>
	<plist version="1.0">
	<dict>
	<key>Label</key>
	<string>org.samba</string>
	<key>ProgramArguments</key>
	<array>
	<string>/opt/samba/sbin/smbd</string>
	<string>-s</string>


	it 'loads the page' do
	visit @site_url
	expect(page).to have_content 'clouds'
	end


	# 1) Place following in 'context' block
	# START ---

	it 'has up-to-date counter' do
	api_counter_value = get_counter_value_from_api
	page_counter_value = get_counter_value_from_page
	puts "API counter is #{api_counter_value}, Page is #{page_counter_value}"
	expect(page_counter_value).to be >= api_counter_value
	end


	it 'loads the page fully in under 2 seconds' do
	stopwatch = Stopwatch.new
	visit @site_url
	expect(stopwatch.elapsed_time).to be < 2
	end