FruitMachine-Swift/FruitMachine/AppleII/SoftswitchOverrides.swift
Luigi Thirty ab3c32af3d attached the Disk II ROM
peripherals
2017-08-03 00:31:12 -04:00

98 lines
5.7 KiB
Swift

//
// SoftswitchOverrides.swift
// FruitMachine
//
// Created by Christopher Rohl on 8/1/17.
// Copyright © 2017 Christopher Rohl. All rights reserved.
//
import Cocoa
extension AppleII {
class SoftswitchOverrides: NSObject {
/* Keyboard port */
static let readKeyboard = ReadOverride(start: 0xC000, end: 0xC000, readAnyway: false, action: SoftswitchOverrides.actionReadKeyboard)
static func actionReadKeyboard(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
//let b = CPU.sharedInstance.memoryInterface.readByte(offset: 0xC000, bypassOverrides: true)
//CPU.sharedInstance.memoryInterface.writeByte(offset: 0xC000, value: b)
//return b
return AppleII.sharedInstance.keyboardController.KEYBOARD
}
static let clearKeypressStrobeR = ReadOverride(start: 0xC010, end: 0xC010, readAnyway: false, action: SoftswitchOverrides.actionClearKeypressStrobe)
static let clearKeypressStrobeW = WriteOverride(start: 0xC010, end: 0xC010, writeAnyway: false, action: SoftswitchOverrides.actionClearKeypressStrobe)
static func actionClearKeypressStrobe(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
//Clears b7 of $C000 on write.
//let b = CPU.sharedInstance.memoryInterface.readByte(offset: 0xC000, bypassOverrides: true)
//CPU.sharedInstance.memoryInterface.writeByte(offset: 0xC000, value: b & 0x7F, bypassOverrides: true)
//CPU.sharedInstance.memoryInterface.writeByte(offset: 0xC010, value: b & 0x7F, bypassOverrides: true)
//return b
let b = AppleII.sharedInstance.keyboardController.KEYBOARD
AppleII.sharedInstance.keyboardController.KEYBOARD = b & 0x7F
AppleII.sharedInstance.keyboardController.STROBE = b & 0x7F
return b
}
/* Video settings */
static let switchC050R = ReadOverride(start: 0xC050, end: 0xC050, readAnyway: false, action: SoftswitchOverrides.actionSwitchC050)
static let switchC050W = WriteOverride(start: 0xC050, end: 0xC050, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC050)
static func actionSwitchC050(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.TEXT_MODE = false
return 0x00
}
static let switchC051R = ReadOverride(start: 0xC051, end: 0xC051, readAnyway: false, action: SoftswitchOverrides.actionSwitchC051)
static let switchC051W = WriteOverride(start: 0xC051, end: 0xC051, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC051)
static func actionSwitchC051(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.TEXT_MODE = true
return 0x00
}
static let switchC052R = ReadOverride(start: 0xC052, end: 0xC052, readAnyway: false, action: SoftswitchOverrides.actionSwitchC052)
static let switchC052W = WriteOverride(start: 0xC052, end: 0xC052, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC052)
static func actionSwitchC052(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.MIX_MODE = false
return 0x00
}
static let switchC053R = ReadOverride(start: 0xC053, end: 0xC053, readAnyway: false, action: SoftswitchOverrides.actionSwitchC053)
static let switchC053W = WriteOverride(start: 0xC053, end: 0xC053, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC053)
static func actionSwitchC053(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.MIX_MODE = true
return 0x00
}
static let switchC054R = ReadOverride(start: 0xC054, end: 0xC054, readAnyway: false, action: SoftswitchOverrides.actionSwitchC054)
static let switchC054W = WriteOverride(start: 0xC054, end: 0xC054, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC054)
static func actionSwitchC054(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.PAGE_2 = false
return 0x00
}
static let switchC055R = ReadOverride(start: 0xC055, end: 0xC055, readAnyway: false, action: SoftswitchOverrides.actionSwitchC055)
static let switchC055W = WriteOverride(start: 0xC055, end: 0xC055, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC055)
static func actionSwitchC055(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.MIX_MODE = true
return 0x00
}
static let switchC056R = ReadOverride(start: 0xC056, end: 0xC056, readAnyway: false, action: SoftswitchOverrides.actionSwitchC056)
static let switchC056W = WriteOverride(start: 0xC056, end: 0xC056, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC056)
static func actionSwitchC056(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.HIRES_MODE = false
return 0x00
}
static let switchC057R = ReadOverride(start: 0xC057, end: 0xC057, readAnyway: false, action: SoftswitchOverrides.actionSwitchC057)
static let switchC057W = WriteOverride(start: 0xC057, end: 0xC057, writeAnyway: false, action: SoftswitchOverrides.actionSwitchC057)
static func actionSwitchC057(dummy: AnyObject, address: UInt16, byte: UInt8?) -> UInt8? {
AppleII.sharedInstance.videoSoftswitches.HIRES_MODE = true
return 0x00
}
}
}