mirror of
https://github.com/trudnai/Steve2.git
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299 lines
8.3 KiB
Swift
299 lines
8.3 KiB
Swift
//
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// PreferencesViewController.swift
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// Steve ][
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//
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// Created by Tamas Rudnai on 6/4/20.
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// Copyright © 2019, 2020 Tamas Rudnai. All rights reserved.
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//
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// This file is part of Steve ][ -- The Apple ][ Emulator.
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//
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// Steve ][ is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Steve ][ is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Steve ][. If not, see <https://www.gnu.org/licenses/>.
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//
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import Cocoa
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class DebuggerViewController: NSViewController, NSTextFieldDelegate {
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static var shared : DebuggerViewController? = nil
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@IBOutlet var CPU_Display: DisplayView!
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@IBOutlet var Stack_Display: DisplayView!
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@IBOutlet var Mem1_Display: DisplayView!
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@IBOutlet var Disass_Display: DisplayView!
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// required init?(coder: NSCoder) {
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// super.init(coder: coder)
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// DebuggerViewController.shared = self
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// }
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override func viewDidLoad() {
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super.viewDidLoad()
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self.preferredContentSize = NSMakeSize(self.view.frame.size.width, self.view.frame.size.height)
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DebuggerViewController.shared = self
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}
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override func viewDidAppear() {
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super.viewDidAppear()
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// // Update window title with the active TableView Title
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// self.parent?.view.window?.title = self.title!
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Update()
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DebuggerWindowController.current?.ContinuePauseButtonState()
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}
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override func scrollWheel(with event: NSEvent) {
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super.scrollWheel(with: event)
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// if view.window?.firstResponder?.textView?.delegate === Stack_Display {
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// print("scroll deltaY", event.deltaY, event.scrollingDeltaY)
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// Stack_Display.scroll(Stack_Display.enclosingScrollView!.visibleRect, by: NSSize(width: 0, height: event.scrollingDeltaY) )
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// }
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var scrollTo = Disass_Display.visibleRect.origin
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let lineSpacing = CGFloat(1.5)
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let lineHeight = Disass_Display.font!.pointSize * lineSpacing
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// print("lineHeight:", lineHeight, "fontSize:", Stack_Display.font?.pointSize)
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let y1 = round( (scrollTo.y + round(event.scrollingDeltaY) * lineHeight) / lineHeight) * lineHeight
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let y2 = round( scrollTo.y / lineHeight + event.scrollingDeltaY ) * lineHeight
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if y1 != y2 {
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print("NOT EQ", y1, y2)
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}
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scrollTo.y = y1
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Disass_Display.scroll(scrollTo)
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}
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func bin(n : UInt8, sp : String = "", mid : String = " ") -> String {
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var str = ""
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var n = n
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for i in 1...8 {
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if n & 0x80 == 0 {
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str += "0"
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}
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else {
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str += "1"
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}
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str += sp
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if i == 4 {
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str += mid
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}
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n <<= 1
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}
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return str
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}
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func DisplayRegisters() {
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let registers = String(format:"""
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A: %02X %3u %@
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X: %02X %3u %@
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Y: %02X %3u %@
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SP: %02X
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PC: %04X
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N V - B D I Z C
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%d %d %d %d %d %d %d %d
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""",
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m6502.A, m6502.A, bin(n: m6502.A),
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m6502.X, m6502.X, bin(n: m6502.X),
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m6502.Y, m6502.Y, bin(n: m6502.Y),
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m6502.SP,
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m6502.PC,
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m6502.N != 0, m6502.V != 0, m6502.res != 0, m6502.B != 0, m6502.D != 0, m6502.I != 0, m6502.Z != 0, m6502.C != 0
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)
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DispatchQueue.main.async {
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self.CPU_Display.string = registers
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}
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}
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func DisplayStack() {
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var stack = ""
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for i : UInt16 in (0x100...0x1FF).reversed() {
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stack += String(format:"%03X: %02X\n", i, getMEM(i))
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}
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DispatchQueue.main.async {
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self.Stack_Display.string = stack
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}
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}
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func hexLine16(addr : UInt16) -> String {
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var line = String(format: "%04X: ", addr)
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for i : UInt16 in 0...15 {
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line += String(format: "%02X ", getMEM(addr + i))
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}
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return line
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}
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let txtClear = [Character](repeating: " ", count: 16)
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func textLine16(addr : UInt16) -> String {
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var unicodeTextArray = NSArray(array: txtClear, copyItems: true) as! [Character]
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// render the rest of the text screen
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for i in 0 ... 15 {
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let byte = getMEM(addr + UInt16(i))
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let idx = Int(byte);
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let chr = ViewController.charConvTbl[idx]
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unicodeTextArray[i] = chr
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}
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return String(unicodeTextArray)
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}
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func DisplayMemory() {
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var memory = ""
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for i : UInt16 in stride(from: 0x400, to: 0x4FF, by: 16) {
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memory += hexLine16(addr: i) + " " + textLine16(addr: i) + "\n"
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}
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DispatchQueue.main.async {
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self.Mem1_Display.string = memory
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}
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}
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func invertLine(line : String) -> String {
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var converted = ""
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for chr in line {
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converted.append(ViewController.charConvTbl[Int(chr.asciiValue!)])
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}
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return converted
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}
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let disass_addr_min : UInt16 = 320
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let disass_addr_max : UInt16 = 170
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var disass_addr : UInt16 = 0
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var line_number = 0
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var current_line_number = 0
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let lines_to_disass = 300
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func get_scroll_line(view: DisplayView) -> Int {
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let scrollPos = view.visibleRect.origin.y
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let lineSpacing = CGFloat(1.5)
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let lineHeight = view.font!.pointSize * lineSpacing
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return Int(scrollPos / lineHeight)
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}
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func scroll_to(view: DisplayView, line: Int) {
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var scrollTo = view.visibleRect.origin
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let lineSpacing = CGFloat(1.5)
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let lineHeight = view.font!.pointSize * lineSpacing
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scrollTo.y = CGFloat(line) * lineHeight
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view.scroll(scrollTo)
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}
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func DisplayDisassembly() {
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let m6502_saved = m6502
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var disass = ""
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line_number = 0
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current_line_number = 0
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if m6502.PC > disass_addr && m6502.PC < disass_addr + disass_addr_max {
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m6502.PC = disass_addr
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}
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else {
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disass_addr = m6502.PC
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m6502.PC -= disass_addr_min + 20
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// try to sync disassembly code
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while m6502.PC < disass_addr - disass_addr_min {
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m6502_Disass_1_Instr()
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// line_number += 1
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}
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// hopefully instruction address is in sync
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disass_addr = m6502.PC
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}
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// normal disassembly
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for _ in 1...lines_to_disass {
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let isCurrentLine = m6502.PC == m6502_saved.PC
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m6502_Disass_1_Instr()
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line_number += 1
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var line = String(cString: disassemblyLine( isCurrentLine )!)
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if isCurrentLine {
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line = invertLine(line: line)
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current_line_number = line_number
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}
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disass += line + "\n"
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}
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DispatchQueue.main.async {
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// let isEmpty = self.Disass_Display.string.isEmpty
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self.Disass_Display.string = disass
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let currentScrollLine = self.get_scroll_line(view: self.Disass_Display) + 1
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if self.current_line_number <= currentScrollLine || self.current_line_number > currentScrollLine + 35 {
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self.scroll_to(view: self.Disass_Display, line: self.current_line_number - 5)
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// at the beginning it takes a while to fill up the buffer -- maybe allocation issue?
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if currentScrollLine == 1 {
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// so we need to scroll a bit later when the string is already populated
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
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self.scroll_to(view: self.Disass_Display, line: self.current_line_number - 5)
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}
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}
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}
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}
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
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// your code here
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}
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m6502 = m6502_saved
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}
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func Update() {
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DisplayRegisters()
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DisplayStack()
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DisplayMemory()
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DisplayDisassembly()
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}
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}
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