hires starting

FruitMachine.xcodeproj/project.pbxproj

@@ -9,6 +9,7 @@
 /* Begin PBXBuildFile section */
 		2A044E2C1F37D65A000E8085 /* LanguageCard16K.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A044E2B1F37D65A000E8085 /* LanguageCard16K.swift */; };
 		2A044E2E1F382CA9000E8085 /* AppleIIPlus.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A044E2D1F382CA9000E8085 /* AppleIIPlus.swift */; };
+		2A07857D1F3D273E008736D2 /* HiresMode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A07857C1F3D273E008736D2 /* HiresMode.swift */; };
 		2A0D0C691F3C09990000913B /* Types.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A0D0C681F3C09990000913B /* Types.swift */; };
 		2A16ADBB1F33C341004A0333 /* DiskImage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A16ADBA1F33C341004A0333 /* DiskImage.swift */; };
 		2A2126841F2A9FA300E43DC1 /* DebuggerWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2A2126831F2A9FA300E43DC1 /* DebuggerWindowController.swift */; };
@@ -61,6 +62,7 @@
 /* Begin PBXFileReference section */
 		2A044E2B1F37D65A000E8085 /* LanguageCard16K.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LanguageCard16K.swift; sourceTree = "<group>"; };
 		2A044E2D1F382CA9000E8085 /* AppleIIPlus.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppleIIPlus.swift; sourceTree = "<group>"; };
+		2A07857C1F3D273E008736D2 /* HiresMode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HiresMode.swift; sourceTree = "<group>"; };
 		2A0D0C681F3C09990000913B /* Types.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Types.swift; sourceTree = "<group>"; };
 		2A16ADBA1F33C341004A0333 /* DiskImage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DiskImage.swift; sourceTree = "<group>"; };
 		2A2126831F2A9FA300E43DC1 /* DebuggerWindowController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DebuggerWindowController.swift; sourceTree = "<group>"; };
@@ -148,6 +150,7 @@
 				2A86FB981F32694A00AD0C68 /* VideoModes.swift */,
 				2A63C2321F32C39300D4F4F8 /* TextMode.swift */,
 				2A63C2341F32C4F700D4F4F8 /* LoresMode.swift */,
+				2A07857C1F3D273E008736D2 /* HiresMode.swift */,
 			);
 			path = Modes;
 			sourceTree = "<group>";
@@ -442,6 +445,7 @@
 				2AE42E0A1F28521E00C4900E /* WriteOverride.swift in Sources */,
 				2A6DC7ED1F30492C0066FE0D /* ScreenDelegate.swift in Sources */,
 				2A044E2C1F37D65A000E8085 /* LanguageCard16K.swift in Sources */,
+				2A07857D1F3D273E008736D2 /* HiresMode.swift in Sources */,
 				2A5BC5191F29A28D008C03BE /* AppleIScreenView.swift in Sources */,
 				2A63C2371F32C55100D4F4F8 /* VideoHelpers.swift in Sources */,
 				2A63C23A1F32CCE900D4F4F8 /* DiskII.swift in Sources */,

FruitMachine/AppleII/Video/Modes/HiresMode.swift

@@ -0,0 +1,55 @@
+//
+//  HiresMode.swift
+//  FruitMachine
+//
+//  Created by Christopher Rohl on 8/10/17.
+//  Copyright © 2017 Christopher Rohl. All rights reserved.
+//
+
+import Cocoa
+
+class HiresMode: NSObject {
+    static func putHiresPixel(buffer: UnsafeMutablePointer<BitmapPixelsLE555.PixelData>?, pixel: UInt8, address: UInt16) {
+        let pageBase: Address
+        
+        if(EmulatedSystemInstance!.videoSoftswitches.PAGE_2) {
+            pageBase = 0x4000
+        } else {
+            pageBase = 0x2000
+        }
+        
+        //Convert the address into an (X,Y) pixel coordinate.
+        var offset = address - 0x2000
+        if(offset >= 0x2000) { //Page 2 address
+            offset -= 0x2000
+        }
+        
+        //Find the row number.
+        var rowNumber = offset / 0x80
+        let lowByte = offset & 0x0FF
+        
+        if(0x28 ... 0x4F ~= lowByte || 0xA8 ... 0xCF ~= lowByte) {
+            //Middle third.
+            rowNumber += 64
+            //cellX = (lowByte & ~(0x80)) - 0x28
+        }
+        else if(0x50 ... 0x77 ~= lowByte || 0xD0 ... 0xF7 ~= lowByte) {
+            //Bottom third.
+            rowNumber += 64
+            //cellX = (lowByte & ~(0x80)) - 0x50
+        }
+        else if(0x78 ... 0x7F ~= lowByte || 0xF8 ... 0xFF ~= lowByte) {
+            //Discard.
+        }
+        else {
+            //Top third.
+            rowNumber += 0
+            //cellX = (lowByte & ~(0x80))
+        }
+        
+        rowNumber += offset / 0x400
+        
+        let columnByte = (offset & 0x0007)
+        
+    }
+}