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Luigi Thirty 2017-08-10 18:59:55 -04:00
parent 6a149b3365
commit cfb764b85a
5 changed files with 30 additions and 15 deletions
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33
FruitMachine/AppleII/AppleIIBase.swift
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@ -142,30 +142,37 @@ class AppleIIBase: NSObject, EmulatedSystem {
videoMode = getCurrentVideoMode(switches: videoSoftswitches)
let videoMemoryStart: Address
if(videoSoftswitches.PAGE_2) {
videoMemoryStart = 0x800
} else {
videoMemoryStart = 0x400
}
if(videoMode == .Text)
{
//Text mode: Get character codes from $0400-$07FF
putGlyphs(buffer: buf!, start: 0x400, end: 0x7F8)
putGlyphs(buffer: buf!, start: videoMemoryStart, end: videoMemoryStart + 0x3F8)
}
else if(videoMode == .Lores)
{
putLoresPixels(buffer: buf!, start: 0x400, end: 0x7F8)
putLoresPixels(buffer: buf!, start: videoMemoryStart, end: videoMemoryStart + 0x3F8)
}
else if(videoMode == .MixedLores) {
//Draw the lores pixel rows.
putLoresPixels(buffer: buf!, start: 0x400, end: 0x650)
putLoresPixels(buffer: buf!, start: 0x680, end: 0x6A8)
putLoresPixels(buffer: buf!, start: 0x700, end: 0x728)
putLoresPixels(buffer: buf!, start: 0x780, end: 0x7A8)
putLoresPixels(buffer: buf!, start: 0x6A8, end: 0x6D0)
putLoresPixels(buffer: buf!, start: 0x728, end: 0x750)
putLoresPixels(buffer: buf!, start: 0x7A8, end: 0x7D0)
putLoresPixels(buffer: buf!, start: videoMemoryStart, end: videoMemoryStart + 0x250)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x280, end: videoMemoryStart + 0x2A8)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x300, end: videoMemoryStart + 0x328)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x380, end: videoMemoryStart + 0x3A8)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x2A8, end: videoMemoryStart + 0x2D0)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x328, end: videoMemoryStart + 0x350)
putLoresPixels(buffer: buf!, start: videoMemoryStart + 0x3A8, end: videoMemoryStart + 0x3D0)
//Draw the bottom 4 text rows.
putGlyphs(buffer: buf!, start: 0x650, end: 0x678)
putGlyphs(buffer: buf!, start: 0x6D0, end: 0x6F8)
putGlyphs(buffer: buf!, start: 0x750, end: 0x778)
putGlyphs(buffer: buf!, start: 0x7D0, end: 0x7F8)
putGlyphs(buffer: buf!, start: videoMemoryStart + 0x250, end: videoMemoryStart + 0x278)
putGlyphs(buffer: buf!, start: videoMemoryStart + 0x2D0, end: videoMemoryStart + 0x2F8)
putGlyphs(buffer: buf!, start: videoMemoryStart + 0x350, end: videoMemoryStart + 0x378)
putGlyphs(buffer: buf!, start: videoMemoryStart + 0x3D0, end: videoMemoryStart + 0x3F8)
} else {
print("Unimplemented video mode!")
}

2
FruitMachine/AppleII/SoftswitchOverrides.swift
View File

@ -75,7 +75,7 @@ extension AppleIIBase {
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? {
EmulatedSystemInstance!.videoSoftswitches.MIX_MODE = true
EmulatedSystemInstance!.videoSoftswitches.PAGE_2 = true
return 0x00
}

1
FruitMachine/AppleII/Video/Modes/LoresMode.swift
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@ -12,6 +12,7 @@ extension AppleIIBase {
class LoresMode: NSObject {
static func putLoresPixel(buffer: UnsafeMutablePointer<BitmapPixelsLE555.PixelData>?, pixel: UInt8, address: UInt16) {
let pageOffset = address - 0x400
let pixelPosition = VideoHelpers.getPixelOffset(memoryOffset: Int(pageOffset))
if(pixelPosition.x == -1 && pixelPosition.y == -1) {

6
FruitMachine/AppleII/Video/Modes/TextMode.swift
View File

@ -25,7 +25,11 @@ extension AppleIIBase {
}
//Calculate the offset to reach the desired position.
let baseOffset = EmulatedSystemInstance!.emulatorViewDelegate.scanlineOffsets[Int(pixelPosition.y)] + Int(pixelPosition.x)
var baseOffset = EmulatedSystemInstance!.emulatorViewDelegate.scanlineOffsets[Int(pixelPosition.y) % 192] + Int(pixelPosition.x)
if(EmulatedSystemInstance!.videoSoftswitches.PAGE_2) {
baseOffset += 0x400
}
for charY in 0..<AppleII.A2CharacterGenerator.CHAR_HEIGHT {
let offset = baseOffset + (AppleII.ScreenDelegate.PIXEL_WIDTH * charY)

3
FruitMachine/AppleII/Video/Modes/VideoModes.swift
View File

@ -10,6 +10,9 @@ import Cocoa
extension AppleIIBase {
static let PAGE1_BASE: Address = 0x400
static let PAGE2_BASE: Address = 0x800
typealias Softswitch = Bool
struct VideoSoftswitches {