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https://github.com/trudnai/Steve2.git
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Prelimenary Breakpoints
This commit is contained in:
tudnai
parent
e338d7fd89
commit
02dc720709
@ -226,6 +226,8 @@
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32C8233A2908822E0018438F /* DebuggerWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 32C823392908822E0018438F /* DebuggerWindowController.swift */; };
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32C82356290888C50018438F /* DebuggerWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 32C823392908822E0018438F /* DebuggerWindowController.swift */; };
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32C82360290888D10018438F /* CheatMenu.swift in Sources */ = {isa = PBXBuildFile; fileRef = 32100A8A2875387300D894EE /* CheatMenu.swift */; };
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32D0897C291A44F200F2B486 /* 6502_bp.c in Sources */ = {isa = PBXBuildFile; fileRef = 32D0897B291A44F200F2B486 /* 6502_bp.c */; };
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32D0897D291A44F200F2B486 /* 6502_bp.c in Sources */ = {isa = PBXBuildFile; fileRef = 32D0897B291A44F200F2B486 /* 6502_bp.c */; };
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32E3126624A7193700E61891 /* disk_ii_arm.sfx in Resources */ = {isa = PBXBuildFile; fileRef = 32E3126424A7193700E61891 /* disk_ii_arm.sfx */; };
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32E3126724A7194900E61891 /* disk_ii_arm.sfx in Copy SFX Files */ = {isa = PBXBuildFile; fileRef = 32E3126424A7193700E61891 /* disk_ii_arm.sfx */; };
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32E3126924A98B9300E61891 /* dsk2woz.c in Sources */ = {isa = PBXBuildFile; fileRef = 32E3126824A98B9300E61891 /* dsk2woz.c */; };
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@ -742,6 +744,8 @@
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32C4532D233345420000EBA1 /* MonitorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MonitorView.swift; sourceTree = "<group>"; };
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32C6995127C5439300D0F25D /* Debugger.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Debugger.swift; sourceTree = "<group>"; };
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32C823392908822E0018438F /* DebuggerWindowController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DebuggerWindowController.swift; sourceTree = "<group>"; };
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32D0897B291A44F200F2B486 /* 6502_bp.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = 6502_bp.c; sourceTree = "<group>"; };
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32D08987291A450400F2B486 /* 6502_bp.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = 6502_bp.h; sourceTree = "<group>"; };
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32DBF7632334657900DD50E7 /* HiRes.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HiRes.swift; sourceTree = "<group>"; };
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32DBF76723373FB400DD50E7 /* disassembler.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = disassembler.h; sourceTree = "<group>"; };
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32E21BE62491BF8B006C0C72 /* apple-rainbow.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "apple-rainbow.png"; sourceTree = "<group>"; };
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@ -990,6 +994,8 @@
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32439F7422ECD8AD0077AAE0 /* 6502.c */,
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325B7652290A32CC00B29605 /* 6502_debugger.h */,
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325B75DF2909F95000B29605 /* 6502_debugger.c */,
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32D08987291A450400F2B486 /* 6502_bp.h */,
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32D0897B291A44F200F2B486 /* 6502_bp.c */,
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320F2A8924CFFBE300671B35 /* 6502_std.h */,
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320F2A8A24D0001600671B35 /* 6502_und.h */,
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320F2A8B24D0828600671B35 /* 6502_C.h */,
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@ -1657,6 +1663,7 @@
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32799F86264B1A5700255669 /* HiRes.swift in Sources */,
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32799F87264B1A5700255669 /* LoRes.swift in Sources */,
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32C6995327C5439300D0F25D /* Debugger.swift in Sources */,
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32D0897D291A44F200F2B486 /* 6502_bp.c in Sources */,
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325B761B290A0C4200B29605 /* 6502_debugger.c in Sources */,
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327B75D829064FDC00A86A71 /* DebuggerViewController.swift in Sources */,
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32799F88264B1A5700255669 /* RepeatingTimer.swift in Sources */,
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@ -1676,6 +1683,7 @@
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32E3126D24AC033A00E61891 /* ToolBarController.swift in Sources */,
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323D043024898AB70086A901 /* PreferencesViewController.swift in Sources */,
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32100A9F28753AAA00D894EE /* SubMenu.swift in Sources */,
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32D0897C291A44F200F2B486 /* 6502_bp.c in Sources */,
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32BCCCE9264DBDC8002151C5 /* 6502.c in Sources */,
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323D04332489BFD80086A901 /* PreferencesWindowController.swift in Sources */,
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32E3126924A98B9300E61891 /* dsk2woz.c in Sources */,
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@ -29,6 +29,7 @@
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#import "6502.h"
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#import "6502_bp.h"
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#import "6502_debugger.h"
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#import "disassembler.h"
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#import "speaker.h" // So we can access to speaker stuff from Swift
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@ -39,6 +39,8 @@ class DebuggerWindowController: NSWindowController, NSWindowDelegate {
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if isWindowFullscreen {
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window?.toggleFullScreen(self)
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}
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m6502_dbg_init()
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}
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@ -1267,7 +1267,7 @@ class ViewController: NSViewController {
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let UpdateSemaphore = DispatchSemaphore(value: 1)
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func Update() {
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if UpdateSemaphore.wait(timeout: DispatchTime.now() + 0.001) == .timedOut {
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if UpdateSemaphore.wait(timeout: .now() + 0.001) == .timedOut {
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// get back here next time...
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print("UpdateSemaphore.wait")
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return
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@ -39,6 +39,7 @@
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#include <string.h>
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#include <time.h>
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#include "6502.h"
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#include "6502_bp.h"
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#include "speaker.h"
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@ -435,6 +436,12 @@ void m6502_Debug(void) {
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}
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}
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if ( m6502_dbg_bp_is_exists(m6502.PC) ) {
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cpuState = cpuState_halted;
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m6502.debugger.wMask = 0;
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return;
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}
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for ( clk_6502_per_frm_max = clk_6502_per_frm; m6502.clkfrm < clk_6502_per_frm_max ; m6502.clkfrm += m6502_Step() ) {
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switch (m6502.interrupt) {
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case HALT:
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118
src/cpu/6502_bp.c
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118
src/cpu/6502_bp.c
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@ -0,0 +1,118 @@
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//
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// main.c
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// 6502
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//
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// Created by Tamas Rudnai on 7/14/19.
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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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// Documentations:
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//
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// http://nesdev.com/6502_cpu.txt
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// http://www.oxyron.de/html/opcodes02.html
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// https://macgui.com/kb/article/46
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// https://www.masswerk.at/6502/6502_instruction_set.html
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//
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#include <string.h>
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#include "6502_bp.h"
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uint16_t breakpoints[DEBUG_MAX_BREAKPOINTS];
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int bp_idx = 0;
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/// m6502_dbg_bp_get_empty
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/// Get an empty slot in the bp astorage
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/// @return Index of the empty breakpoint or -1 if error
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int m6502_dbg_bp_get_empty() {
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for (int i = 0; i < DEBUG_MAX_BREAKPOINTS; i++) {
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if ( breakpoints[i] == 0 ) {
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return i;
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}
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}
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// no empty slots
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return -1;
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}
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/// m6502_dbg_bp_get_first
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/// Get first valid BP
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/// @return addr of BP or 0 if non
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uint16_t m6502_dbg_bp_get_next() {
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while ( bp_idx < DEBUG_MAX_BREAKPOINTS ) {
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uint16_t addr = breakpoints[++bp_idx];
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if (addr) {
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return addr;
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}
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}
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// no empty slots
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return 0;
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}
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/// m6502_dbg_bp_get_first
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/// Get first valid BP
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/// @return addr of BP or 0 if non
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uint16_t m6502_dbg_bp_get_first() {
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bp_idx = -1;
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return m6502_dbg_bp_get_next();
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}
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/// m6502_dbg_bp_get_first
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/// Get first valid BP
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/// @return addr of BP or 0 if non
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uint16_t m6502_dbg_bp_is_exists(uint16_t addr) {
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for (uint16_t bp = m6502_dbg_bp_get_first(); bp; bp = m6502_dbg_bp_get_next()) {
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if ( bp == addr) {
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// found it!
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return bp;
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}
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}
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return 0;
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}
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/// m6502_dbg_bp_add
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/// Add breakpoint
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/// @param addr address to add
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/// @return Index of breakpoint or -1 if error
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int m6502_dbg_bp_add(uint16_t addr) {
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int i = m6502_dbg_bp_get_empty();
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if ( i >= 0 ) {
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breakpoints[i] = addr;
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return i;
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}
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// no empty slots
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return -1;
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}
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void m6502_dbg_bp_init(void) {
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bp_idx = 0;
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memset(breakpoints, 0, sizeof(breakpoints));
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m6502_dbg_bp_add(0xC28B); // keyin DOS 3.3
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}
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void m6502_dbg_init(void) {
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m6502_dbg_bp_init();
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}
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22
src/cpu/6502_bp.h
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22
src/cpu/6502_bp.h
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@ -0,0 +1,22 @@
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//
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// 6502_debugger.h
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// A2Mac
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//
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// Created by Tamas Rudnai on 10/26/22.
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// Copyright © 2022 GameAlloy. All rights reserved.
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//
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#ifndef _6502_bp_h
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#define _6502_bp_h
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#include <stdint.h>
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#define DEBUG_MAX_BREAKPOINTS 256
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extern uint16_t breakpoints[DEBUG_MAX_BREAKPOINTS];
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extern void m6502_dbg_init(void);
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extern int m6502_dbg_bp_add(uint16_t addr);
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extern uint16_t m6502_dbg_bp_is_exists(uint16_t addr);
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#endif /* _6502_bp_h */
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@ -74,6 +74,7 @@ typedef struct {
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**/
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#include "6502_debugger.h"
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#include "6502_instructions.h"
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INLINE int m6502_Disass_1_Instr(void) {
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@ -33,8 +33,14 @@ INLINE flags_t getFlags2(void) {
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void _disHexB( char ** s, const uint8_t b ) {
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// if ( m6502.dbgLevel.trace ) {
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if ( (*s >= disassembly.opcode) && (*s < disassembly.opcode + sizeof(disassembly.opcode)) ) {
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snprintf(*s, 4, "%02X ", b);
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*s += 3;
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}
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else {
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fprintf(stderr, "_disHexB *s is WRONG! (%p vs %p)\n", *s, disassembly.opcode);
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}
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// }
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}
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