debug.cpp

/*
 * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
 *
 * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
 *                           Jerremy Koot (jkoot@snes9x.com)
 *
 * Super FX C emulator code 
 * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
 *                           Gary Henderson.
 * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
 *
 * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
 * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
 * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
 *
 * DOS port code contains the works of other authors. See headers in
 * individual files.
 *
 * Snes9x homepage: http://www.snes9x.com
 *
 * Permission to use, copy, modify and distribute Snes9x in both binary and
 * source form, for non-commercial purposes, is hereby granted without fee,
 * providing that this license information and copyright notice appear with
 * all copies and any derived work.
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event shall the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Snes9x is freeware for PERSONAL USE only. Commercial users should
 * seek permission of the copyright holders first. Commercial use includes
 * charging money for Snes9x or software derived from Snes9x.
 *
 * The copyright holders request that bug fixes and improvements to the code
 * should be forwarded to them so everyone can benefit from the modifications
 * in future versions.
 *
 * Super NES and Super Nintendo Entertainment System are trademarks of
 * Nintendo Co., Limited and its subsidiary companies.
 */
#include <string.h>

#include "snes9x.h"
#include "memmap.h"
#include "cpuops.h"
#include "cheats.h"
#include "ppu.h"
#include "cpuexec.h"
#include "debug.h"
#include "missing.h"
#include "display.h"
#include "apu.h"
#include "sa1.h"
#include "spc7110.h"

#ifdef DEBUGGER
static void WhatsMissing ();
static void WhatsUsed ();
EXTERN_C SDMA DMA[8];
extern struct SCheatData Cheat;

#ifdef SPCTOOL
#include "spctool/spc700.h"
extern "C" void TraceSPC (unsigned char *PC, unsigned short YA, unsigned char X,
			  SPCFlags PS, unsigned char *SP);
#endif

FILE *trace = NULL;
FILE *trace2 = NULL;
struct SBreakPoint S9xBreakpoint[6];
struct SDebug
{
    struct
    {
	uint8 Bank;
	uint16 Address;
    } Dump;
    struct
    {
	uint8 Bank;
	uint16 Address;
    } Unassemble;
} Debug =
{
    {
	0, 0
    },
    {
	0, 0
    }
};
char *HelpMessage[] = {
    "Command Help:",
    "?                 - Shows this Command Help",
    "r                 - Shows the Registers",
    "i                 - Shows the interrupt vectors",
    "t                 - Trace current instruction   [Step-into]",
    "T                 - Toggle CPU instruction tracing to trace.log",
    "D                 - Toggle DMA tracing to stdout",
    "H                 - Toggle H-DMA tracing to stdout",
    "P		       - Toggle DSP tracing to stdout",
    "U                 - Toggle unknown register read/write tracing",
    "V                 - Toggle non-DMA V-RAM read/write tracing",
    "R                 - Reset ROM.",
    "p                 - Proceed to next instruction [Step-over]",
    "s                 - Skip to next instruction    [Skip]",
    "S                 - dump sprite (OBJ) status",
    "g [Address]       - Go or Go to [Address]",
    "u [Address]       - Disassemble from PC or [Address]",
    "d [Address]       - Dump from PC or [Address]",
    "bv [Number]       - View Breakpoints or View Breakpoint [Number]",
    "bs [Number] [Address] - Enable/Disable Breakpoint",
    "                        [Enable example: BS #2 $02:8002]",
    "                        [Disable example: BS #2]",
    "c		       - Dump SNES colour palette", 
    "W		       - Show what SNES hardware features a ROM is using",
    "			 which might not be implemented yet.",
    "w		       - Show some SNES hardware features used so far in this frame",
    "q		       - Quit emulator",
    "",
    "[Address]             - $Bank:Address or $Address",
    "                        [For example: $01:8123]",
    "[Number]              - #Number",
    "                        [For example: #1]",
    "a                 - Show Sound CPU status",
    "A                 - Toggle sound CPU instruction tracing to aputrace.log",
    "B                 - Toggle sound DSP register tracing",
    "C		       - Dump sound sample addresses",
    "ad [Address]      - Dump sound CPU RAM from PC or [Address]",
    "", NULL};

char *S9xMnemonics[256] = {
    "BRK", "ORA", "COP", "ORA", "TSB", "ORA", "ASL", "ORA",
    "PHP", "ORA", "ASL", "PHD", "TSB", "ORA", "ASL", "ORA",
    "BPL", "ORA", "ORA", "ORA", "TRB", "ORA", "ASL", "ORA",
    "CLC", "ORA", "INC", "TCS", "TRB", "ORA", "ASL", "ORA",
    "JSR", "AND", "JSL", "AND", "BIT", "AND", "ROL", "AND",
    "PLP", "AND", "ROL", "PLD", "BIT", "AND", "ROL", "AND",
    "BMI", "AND", "AND", "AND", "BIT", "AND", "ROL", "AND",
    "SEC", "AND", "DEC", "TSC", "BIT", "AND", "ROL", "AND",
    "RTI", "EOR", "DB ", "EOR", "MVP", "EOR", "LSR", "EOR",
    "PHA", "EOR", "LSR", "PHK", "JMP", "EOR", "LSR", "EOR",
    "BVC", "EOR", "EOR", "EOR", "MVN", "EOR", "LSR", "EOR",
    "CLI", "EOR", "PHY", "TCD", "JMP", "EOR", "LSR", "EOR",
    "RTS", "ADC", "PER", "ADC", "STZ", "ADC", "ROR", "ADC",
    "PLA", "ADC", "ROR", "RTL", "JMP", "ADC", "ROR", "ADC",
    "BVS", "ADC", "ADC", "ADC", "STZ", "ADC", "ROR", "ADC",
    "SEI", "ADC", "PLY", "TDC", "JMP", "ADC", "ROR", "ADC",
    "BRA", "STA", "BRL", "STA", "STY", "STA", "STX", "STA",
    "DEY", "BIT", "TXA", "PHB", "STY", "STA", "STX", "STA",
    "BCC", "STA", "STA", "STA", "STY", "STA", "STX", "STA",
    "TYA", "STA", "TXS", "TXY", "STZ", "STA", "STZ", "STA",
    "LDY", "LDA", "LDX", "LDA", "LDY", "LDA", "LDX", "LDA",
    "TAY", "LDA", "TAX", "PLB", "LDY", "LDA", "LDX", "LDA",
    "BCS", "LDA", "LDA", "LDA", "LDY", "LDA", "LDX", "LDA",
    "CLV", "LDA", "TSX", "TYX", "LDY", "LDA", "LDX", "LDA",
    "CPY", "CMP", "REP", "CMP", "CPY", "CMP", "DEC", "CMP",
    "INY", "CMP", "DEX", "WAI", "CPY", "CMP", "DEC", "CMP",
    "BNE", "CMP", "CMP", "CMP", "PEI", "CMP", "DEC", "CMP",
    "CLD", "CMP", "PHX", "STP", "JML", "CMP", "DEC", "CMP",
    "CPX", "SBC", "SEP", "SBC", "CPX", "SBC", "INC", "SBC",
    "INX", "SBC", "NOP", "XBA", "CPX", "SBC", "INC", "SBC",
    "BEQ", "SBC", "SBC", "SBC", "PEA", "SBC", "INC", "SBC",
    "SED", "SBC", "PLX", "XCE", "JSR", "SBC", "INC", "SBC"
};
int AddrModes[256] = {
  //0   1  2   3  4  5  6   7  8   9  A  B   C   D   E   F
    3, 10, 3, 19, 6, 6, 6, 12, 0,  1,24, 0, 14, 14, 14, 17, //0
    4, 11, 9, 20, 6, 7, 7, 13, 0, 16,24, 0, 14, 15, 15, 18, //1
   14, 10,17, 19, 6, 6, 6, 12, 0,  1,24, 0, 14, 14, 14, 17, //2
    4, 11, 9, 20, 7, 7, 7, 13, 0, 16,24, 0, 15, 15, 15, 18, //3
    0, 10, 3, 19, 25,6, 6, 12, 0,  1,24, 0, 14, 14, 14, 17, //4
    4, 11, 9, 20, 25,7, 7, 13, 0, 16, 0, 0, 17, 15, 15, 18, //5
    0, 10, 5, 19, 6, 6, 6, 12, 0,  1,24, 0, 21, 14, 14, 17, //6
    4, 11, 9, 20, 7, 7, 7, 13, 0, 16, 0, 0, 23, 15, 15, 18, //7
    4, 10, 5, 19, 6, 6, 6, 12, 0,  1, 0, 0, 14, 14, 14, 17, //8
    4, 11, 9, 20, 7, 7, 8, 13, 0, 16, 0, 0, 14, 15, 15, 18, //9
    2, 10, 2, 19, 6, 6, 6, 12, 0,  1, 0, 0, 14, 14, 14, 17, //A
    4, 11, 9, 20, 7, 7, 8, 13, 0, 16, 0, 0, 15, 15, 16, 18, //B
    2, 10, 3, 19, 6, 6, 6, 12, 0,  1, 0, 0, 14, 14, 14, 17, //C
    4, 11, 9,  9, 0, 7, 7, 13, 0, 16, 0, 0, 22, 15, 15, 18, //D
    2, 10, 3, 19, 6, 6, 6, 12, 0,  1, 0, 0, 14, 14, 14, 17, //E
    4, 11, 9, 20,14, 7, 7, 13, 0, 16, 0, 0, 23, 15, 15, 18  //F
};

uint8 S9xOPrint (char *Line, uint8 Bank, uint16 Address)
{
    uint8 S9xOpcode;
    uint8 Operant[3];
    uint16 Word;
    uint8 Byte;
    uint8 Size = 0;
    char SByte;
    short SWord;

#if 0
    sprintf (Line, "%04X%04X%04X%04X%02X%04X%c%c%c%c%c%c%c%c%c%03d%03d",
	     Registers.A.W, Registers.X.W, Registers.Y.W,
	     Registers.D.W, Registers.DB, Registers.S.W,
	     CheckEmulation () ? 'E' : 'e',
	     CheckNegative () ? 'N' : 'n',
	     CheckOverflow () ? 'V' : 'v',
	     CheckMemory () ? 'M' : 'm',
	     CheckIndex () ? 'X' : 'x',
	     CheckDecimal () ? 'D' : 'd',
	     CheckIRQ () ? 'I' : 'i',
	     CheckZero () ? 'Z' : 'z',
	     CheckCarry () ? 'C' : 'c',
	     CPU.Cycles,
	     CPU.V_Counter);
    return (0);

#else
    uint32 Cycles = CPU.Cycles;
    uint8 *WaitAddress = CPU.WaitAddress;

    S9xOpcode = S9xGetByte ((Bank << 16) + Address);
    sprintf (Line, "$%02X:%04X %02X ", Bank, Address, S9xOpcode);
    Operant[0] = S9xGetByte ((Bank << 16) + Address + 1);
    Operant[1] = S9xGetByte ((Bank << 16) + Address + 2);
    Operant[2] = S9xGetByte ((Bank << 16) + Address + 3);

    switch (AddrModes[S9xOpcode])
    {
    case 0:
	//Implied
	    sprintf (Line, "%s         %s", Line, S9xMnemonics[S9xOpcode]);
	Size = 1;
	break;
    case 1:
	//Immediate[MemoryFlag]
	    if (!CheckFlag (MemoryFlag))
	{
	    //Accumulator 16 - Bit
		sprintf (Line, "%s%02X %02X    %s #$%02X%02X",
			 Line,
			 Operant[0],
			 Operant[1],
			 S9xMnemonics[S9xOpcode],
			 Operant[1],
			 Operant[0]);
	    Size = 3;
	}
	else
	{
	    //Accumulator 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 2:
	//Immediate[IndexFlag]
	    if (!CheckFlag (IndexFlag))
	{
	    //X / Y 16 - Bit
		sprintf (Line, "%s%02X %02X    %s #$%02X%02X",
			 Line,
			 Operant[0],
			 Operant[1],
			 S9xMnemonics[S9xOpcode],
			 Operant[1],
			 Operant[0]);
	    Size = 3;
	}
	else
	{
	    //X / Y 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 3:
	//Immediate[Always 8 - Bit]
	    if (1)
	{
	    //Always 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 4:
	//Relative
	    sprintf (Line, "%s%02X       %s $%02X",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	SByte = Operant[0];
	Word = Address;
	Word += SByte;
	Word += 2;
	sprintf (Line, "%-32s[$%04X]", Line, Word);
	Size = 2;
	break;
    case 5:
	//Relative Long
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	SWord = (Operant[1] << 8) | Operant[0];
	Word = Address;
	Word += SWord;
	Word += 3;
	sprintf (Line, "%-32s[$%04X]", Line, Word);
	Size = 3;
	break;
    case 6:
	//Direct
	    sprintf (Line, "%s%02X       %s $%02X",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 7:
	//Direct indexed (with x)
	    sprintf (Line, "%s%02X       %s $%02X,x",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Word += Registers.X.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 8:
	//Direct indexed (with y)
	    sprintf (Line, "%s%02X       %s $%02X,y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Word += Registers.Y.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 9:
	//Direct Indirect
	    sprintf (Line, "%s%02X       %s ($%02X)",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Word = S9xGetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 2;
	break;
    case 10:
	//Direct Indexed Indirect
	    sprintf (Line, "%s%02X       %s ($%02X,x)",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Word += Registers.X.W;
	Word = S9xGetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 2;
	break;
    case 11:
	//Direct Indirect Indexed
	    sprintf (Line, "%s%02X       %s ($%02X),y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Word = S9xGetWord (Word);
	Word += Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 2;
	break;
    case 12:
	//Direct Indirect Long
	    sprintf (Line, "%s%02X       %s [$%02X]",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Byte = S9xGetByte (Word + 2);
	Word = S9xGetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 2;
	break;
    case 13:
	//Direct Indirect Indexed Long
	    sprintf (Line, "%s%02X       %s [$%02X],y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += Registers.D.W;
	Byte = S9xGetByte (Word + 2);
	Word = S9xGetWord (Word);
	Word += Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 2;
	break;
    case 14:
	//Absolute
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 3;
	break;
    case 15:
	//Absolute Indexed (With X)
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X,x",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += Registers.X.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 3;
	break;
    case 16:
	//Absolute Indexed (With Y)
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X,y",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 3;
	break;
    case 17:
	//Absolute long
	 sprintf (Line, "%s%02X %02X %02X %s $%02X%02X%02X",
		   Line,
		   Operant[0],
		   Operant[1],
		   Operant[2],
		   S9xMnemonics[S9xOpcode],
		   Operant[2],
		   Operant[1],
		   Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Operant[2], Word);
	Size = 4;
	break;
    case 18:
	//Absolute Indexed long
	 sprintf (Line, "%s%02X %02X %02X %s $%02X%02X%02X,x",
		   Line,
		   Operant[0],
		   Operant[1],
		   Operant[2],
		   S9xMnemonics[S9xOpcode],
		   Operant[2],
		   Operant[1],
		   Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += Registers.X.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Operant[2], Word);
	Size = 4;
	break;
    case 19:
	//StackRelative
	    sprintf (Line, "%s%02X       %s $%02X,s",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Registers.S.W;
	Word += Operant[0];
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 20:
	//Stack Relative Indirect Indexed
	    sprintf (Line, "%s%02X       %s ($%02X,s),y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Registers.S.W;
	Word += Operant[0];
	Word = S9xGetWord (Word);
	Word += Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.DB, Word);
	Size = 2;
	break;
    case 21:
	//Absolute Indirect
	    sprintf (Line, "%s%02X %02X    %s ($%02X%02X)",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word = S9xGetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.PB, Word);
	Size = 3;
	break;
    case 22:
	//Absolute Indirect Long
	    sprintf (Line, "%s%02X %02X    %s [$%02X%02X]",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Byte = S9xGetByte (Word + 2);
	Word = S9xGetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 3;
	break;
    case 23:
	//Absolute Indexed Indirect
	    sprintf (Line, "%s%02X %02X    %s ($%02X%02X,x)",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += Registers.X.W;
	Word = S9xGetWord (ICPU.ShiftedPB + Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Registers.PB, Word);
	Size = 3;
	break;
    case 24:
	//Implied accumulator
	    sprintf (Line, "%s         %s A", Line, S9xMnemonics[S9xOpcode]);
	Size = 1;
	break;
    case 25:
	// MVN/MVP SRC DST
	    sprintf (Line, "%s         %s %02X %02X", Line, S9xMnemonics[S9xOpcode],
		     Operant[0], Operant[1]);
	Size = 3;
	break;
    }
// XXX:
    sprintf (Line, "%-44s A:%04X X:%04X Y:%04X D:%04X DB:%02X S:%04X P:%c%c%c%c%c%c%c%c%c HC:%03d VC:%03ld %02x",
	     Line, Registers.A.W, Registers.X.W, Registers.Y.W,
	     Registers.D.W, Registers.DB, Registers.S.W,
	     CheckEmulation () ? 'E' : 'e',
	     CheckNegative () ? 'N' : 'n',
	     CheckOverflow () ? 'V' : 'v',
	     CheckMemory () ? 'M' : 'm',
	     CheckIndex () ? 'X' : 'x',
	     CheckDecimal () ? 'D' : 'd',
	     CheckIRQ () ? 'I' : 'i',
	     CheckZero () ? 'Z' : 'z',
	     CheckCarry () ? 'C' : 'c',
	     Cycles,
	     CPU.V_Counter,
	     CPU.IRQActive);

    CPU.Cycles = Cycles;
    CPU.WaitAddress = WaitAddress;
    return Size;
#endif
}

uint8 S9xSA1OPrint (char *Line, uint8 Bank, uint16 Address)
{
    uint8 S9xOpcode;
    uint8 Operant[3];
    uint16 Word;
    uint8 Byte;
    uint8 Size = 0;
    char SByte;
    short SWord;

#if 0
    sprintf (Line, "%04X%04X%04X%04X%02X%04X%c%c%c%c%c%c%c%c%c%03d%03d",
	     SA1Registers.A.W, SA1Registers.X.W, SA1Registers.Y.W,
	     SA1Registers.D.W, SA1Registers.DB, SA1Registers.S.W,
	     SA1CheckEmulation () ? 'E' : 'e',
	     SA1CheckNegative () ? 'N' : 'n',
	     SA1CheckOverflow () ? 'V' : 'v',
	     SA1CheckMemory () ? 'M' : 'm',
	     SA1CheckIndex () ? 'X' : 'x',
	     SA1CheckDecimal () ? 'D' : 'd',
	     SA1CheckIRQ () ? 'I' : 'i',
	     SA1CheckZero () ? 'Z' : 'z',
	     SA1CheckCarry () ? 'C' : 'c',
	     CPU.Cycles,
	     CPU.V_Counter);
    return (0);

#else
    S9xOpcode = S9xSA1GetByte ((Bank << 16) + Address);
    sprintf (Line, "$%02X:%04X %02X ", Bank, Address, S9xOpcode);
    Operant[0] = S9xSA1GetByte ((Bank << 16) + Address + 1);
    Operant[1] = S9xSA1GetByte ((Bank << 16) + Address + 2);
    Operant[2] = S9xSA1GetByte ((Bank << 16) + Address + 3);

    switch (AddrModes[S9xOpcode])
    {
    case 0:
	//Implied
	    sprintf (Line, "%s         %s", Line, S9xMnemonics[S9xOpcode]);
	Size = 1;
	break;
    case 1:
	//Immediate[MemoryFlag]
	    if (!SA1CheckFlag (MemoryFlag))
	{
	    //Accumulator 16 - Bit
		sprintf (Line, "%s%02X %02X    %s #$%02X%02X",
			 Line,
			 Operant[0],
			 Operant[1],
			 S9xMnemonics[S9xOpcode],
			 Operant[1],
			 Operant[0]);
	    Size = 3;
	}
	else
	{
	    //Accumulator 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 2:
	//Immediate[IndexFlag]
	    if (!SA1CheckFlag (IndexFlag))
	{
	    //X / Y 16 - Bit
		sprintf (Line, "%s%02X %02X    %s #$%02X%02X",
			 Line,
			 Operant[0],
			 Operant[1],
			 S9xMnemonics[S9xOpcode],
			 Operant[1],
			 Operant[0]);
	    Size = 3;
	}
	else
	{
	    //X / Y 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 3:
	//Immediate[Always 8 - Bit]
	    if (1)
	{
	    //Always 8 - Bit
		sprintf (Line, "%s%02X       %s #$%02X",
			 Line,
			 Operant[0],
			 S9xMnemonics[S9xOpcode],
			 Operant[0]);
	    Size = 2;
	}
	break;
    case 4:
	//Relative
	    sprintf (Line, "%s%02X       %s $%02X",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	SByte = Operant[0];
	Word = Address;
	Word += SByte;
	Word += 2;
	sprintf (Line, "%-32s[$%04X]", Line, Word);
	Size = 2;
	break;
    case 5:
	//Relative Long
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	SWord = (Operant[1] << 8) | Operant[0];
	Word = Address;
	Word += SWord;
	Word += 3;
	sprintf (Line, "%-32s[$%04X]", Line, Word);
	Size = 3;
	break;
    case 6:
	//Direct
	    sprintf (Line, "%s%02X       %s $%02X",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 7:
	//Direct indexed (with x)
	    sprintf (Line, "%s%02X       %s $%02X,x",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Word += SA1Registers.X.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 8:
	//Direct indexed (with y)
	    sprintf (Line, "%s%02X       %s $%02X,y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Word += SA1Registers.Y.W;
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 9:
	//Direct Indirect
	    sprintf (Line, "%s%02X       %s ($%02X)",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Word = S9xSA1GetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 2;
	break;
    case 10:
	//Direct Indexed Indirect
	    sprintf (Line, "%s%02X       %s ($%02X,x)",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Word += SA1Registers.X.W;
	Word = S9xSA1GetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 2;
	break;
    case 11:
	//Direct Indirect Indexed
	    sprintf (Line, "%s%02X       %s ($%02X),y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Word = S9xSA1GetWord (Word);
	Word += SA1Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 2;
	break;
    case 12:
	//Direct Indirect Long
	    sprintf (Line, "%s%02X       %s [$%02X]",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Byte = S9xSA1GetByte (Word + 2);
	Word = S9xSA1GetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 2;
	break;
    case 13:
	//Direct Indirect Indexed Long
	    sprintf (Line, "%s%02X       %s [$%02X],y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = Operant[0];
	Word += SA1Registers.D.W;
	Byte = S9xSA1GetByte (Word + 2);
	Word = S9xSA1GetWord (Word);
	Word += SA1Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 2;
	break;
    case 14:
	//Absolute
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 3;
	break;
    case 15:
	//Absolute Indexed (With X)
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X,x",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += SA1Registers.X.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 3;
	break;
    case 16:
	//Absolute Indexed (With Y)
	    sprintf (Line, "%s%02X %02X    %s $%02X%02X,y",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += SA1Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 3;
	break;
    case 17:
	//Absolute long
	 sprintf (Line, "%s%02X %02X %02X %s $%02X%02X%02X",
		   Line,
		   Operant[0],
		   Operant[1],
		   Operant[2],
		   S9xMnemonics[S9xOpcode],
		   Operant[2],
		   Operant[1],
		   Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Operant[2], Word);
	Size = 4;
	break;
    case 18:
	//Absolute Indexed long
	 sprintf (Line, "%s%02X %02X %02X %s $%02X%02X%02X,x",
		   Line,
		   Operant[0],
		   Operant[1],
		   Operant[2],
		   S9xMnemonics[S9xOpcode],
		   Operant[2],
		   Operant[1],
		   Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += SA1Registers.X.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Operant[2], Word);
	Size = 4;
	break;
    case 19:
	//StackRelative
	    sprintf (Line, "%s%02X       %s $%02X,s",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = SA1Registers.S.W;
	Word += Operant[0];
	sprintf (Line, "%-32s[$00:%04X]", Line, Word);
	Size = 2;
	break;
    case 20:
	//Stack Relative Indirect Indexed
	    sprintf (Line, "%s%02X       %s ($%02X,s),y",
		     Line,
		     Operant[0],
		     S9xMnemonics[S9xOpcode],
		     Operant[0]);
	Word = SA1Registers.S.W;
	Word += Operant[0];
	Word = S9xSA1GetWord (Word);
	Word += SA1Registers.Y.W;
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.DB, Word);
	Size = 2;
	break;
    case 21:
	//Absolute Indirect
	    sprintf (Line, "%s%02X %02X    %s ($%02X%02X)",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word = S9xSA1GetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.PB, Word);
	Size = 3;
	break;
    case 22:
	//Absolute Indirect Long
	    sprintf (Line, "%s%02X %02X    %s [$%02X%02X]",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Byte = S9xSA1GetByte (Word + 2);
	Word = S9xSA1GetWord (Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, Byte, Word);
	Size = 3;
	break;
    case 23:
	//Absolute Indexed Indirect
	    sprintf (Line, "%s%02X %02X    %s ($%02X%02X,x)",
		     Line,
		     Operant[0],
		     Operant[1],
		     S9xMnemonics[S9xOpcode],
		     Operant[1],
		     Operant[0]);
	Word = (Operant[1] << 8) | Operant[0];
	Word += SA1Registers.X.W;
	Word = S9xSA1GetWord (SA1.ShiftedPB + Word);
	sprintf (Line, "%-32s[$%02X:%04X]", Line, SA1Registers.PB, Word);
	Size = 3;
	break;
    case 24:
	//Implied accumulator
	    sprintf (Line, "%s         %s A", Line, S9xMnemonics[S9xOpcode]);
	Size = 1;
	break;
    case 25:
	// MVN/MVP SRC DST
	    sprintf (Line, "%s         %s %02X %02X", Line, S9xMnemonics[S9xOpcode],
		     Operant[0], Operant[1]);
	Size = 3;
	break;
    }
    sprintf (Line, "%-44s A:%04X X:%04X Y:%04X D:%04X DB:%02X S:%04X P:%c%c%c%c%c%c%c%c%c HC:%03ld VC:%03ld",
	     Line, SA1Registers.A.W, SA1Registers.X.W, SA1Registers.Y.W,
	     SA1Registers.D.W, SA1Registers.DB, SA1Registers.S.W,
	     SA1CheckEmulation () ? 'E' : 'e',
	     SA1CheckNegative () ? 'N' : 'n',
	     SA1CheckOverflow () ? 'V' : 'v',
	     SA1CheckMemory () ? 'M' : 'm',
	     SA1CheckIndex () ? 'X' : 'x',
	     SA1CheckDecimal () ? 'D' : 'd',
	     SA1CheckIRQ () ? 'I' : 'i',
	     SA1CheckZero () ? 'Z' : 'z',
	     SA1CheckCarry () ? 'C' : 'c',
	     CPU.Cycles,
	     CPU.V_Counter);

    return Size;
#endif
}

/**********************************************************************************************/
/* DPrint()                                                                                   */
/* This function prints a line in the debug listbox and deletes upperlines if needed          */
/**********************************************************************************************/
void DPrint (char *Line)
{
    printf ("%s\n", Line);
}
/**********************************************************************************************/
/* GetNumber()                                                                                */
/* This function gets a number from a debug command                                           */
/**********************************************************************************************/
int GetNumber (char *Line, uint16 * Number)
{
    int i;
    if (sscanf (Line, " #%d", &i) == 1)
    {
	*Number = i;
	return (1);
    }
    return (-1);
}
/**********************************************************************************************/
/* GetStartAddress()                                                                          */
/* This function gets a starting address from a debug command                                 */
/**********************************************************************************************/
short GetStartAddress (char *Line, uint8 *Bank, uint32 *Address)
{
    int a, b;
    if (sscanf (Line + 1, " $%x:%x", &b, &a) != 2)
	return (-1);
    *Bank = b;
    *Address = a;
    return (1);
}
/**********************************************************************************************/
/* ProcessDebugCommand()                                                                      */
/* This function processes a debug command                                                    */
/**********************************************************************************************/
void ProcessDebugCommand (char *Line)
{
    uint8 Bank = Registers.PB;
    uint32 Address = CPU.PC - CPU.PCBase;
    uint16 Hold;
    uint16 Number;
    char String [512];
    short ErrorCode;

    if (strcasecmp (Line, "cheat") == 0)
    {
	S9xStartCheatSearch (&Cheat);
	printf ("Cheat Search Started\n");
	return;
    }
    if (strcasecmp (Line, "less") == 0)
    {
	S9xSearchForChange (&Cheat, S9X_LESS_THAN, S9X_8_BITS, FALSE, TRUE);
	printf ("Recorded all values that have decreased\n");
	return;
    }
    if (strcasecmp (Line, "print") == 0)
    {
	printf ("Cheat search results:\n");
	S9xOutputCheatSearchResults (&Cheat);
	return;
    }

    if (strncasecmp (Line, "constant", 8) == 0)
    {
	uint32 Byte;
	if (sscanf (&Line [8], "%x %x", &Address, &Byte) == 2)
	    S9xAddCheat (TRUE, TRUE, Address, Byte);
	return;
    }
    
    if (strncasecmp (Line, "dump", 4) == 0)
    {
	int Count;
	if (sscanf (&Line [4], "%x %d", &Address, &Count) == 2)
	{
	    sprintf (String, "%06x%05d.sd2", Address, Count);
	    FILE *fs = fopen (String, "wb");
	    if (fs)
	    {
		int i;
		for (i = 0; i < Count; i++)
		    putc (S9xGetByte (Address + i), fs);

		fclose (fs);
	    }
	    else
		printf ("Can't open %s for writing\n", String);
	}
	else
	    printf ("Usage: dump start_address_in_hex count_in_decimal\n");
	return;
    }
    if (Line[0] == 'i')
    {
	printf ("Vectors:\n");
	sprintf (String, "      8 Bit   16 Bit ");
	DPrint (String);
	sprintf (String, "ABT $00:%04X|$00:%04X", S9xGetWord (0xFFF8), S9xGetWord (0xFFE8));
	DPrint (String);
	sprintf (String, "BRK $00:%04X|$00:%04X", S9xGetWord (0xFFFE), S9xGetWord (0xFFE6));
	DPrint (String);
	sprintf (String, "COP $00:%04X|$00:%04X", S9xGetWord (0xFFF4), S9xGetWord (0xFFE4));
	DPrint (String);
	sprintf (String, "IRQ $00:%04X|$00:%04X", S9xGetWord (0xFFFE), S9xGetWord (0xFFEE));
	DPrint (String);
	sprintf (String, "NMI $00:%04X|$00:%04X", S9xGetWord (0xFFFA), S9xGetWord (0xFFEA));
	DPrint (String);
	sprintf (String, "RES     $00:%04X", S9xGetWord (0xFFFC));
	DPrint (String);
    }
    if (strncmp (Line, "ai", 2) == 0)
    {
	printf ("APU vectors:");
	for (int i = 0; i < 0x40; i += 2)
	{
	    if (i % 16 == 0)
		printf ("\n%04x ", 0xffc0 + i);
	    printf ("%04x ", APU.ExtraRAM [i]);
	}
	printf ("\n");
    }
    if (Line[0] == 's')
    {
	CPU.PC += S9xOPrint (String, Bank, Address);
	Bank = Registers.PB;
	Address = CPU.PC - CPU.PCBase;
	Line[0] = 'r';
    }
    if (Line[0] == 'z')
    {
	uint16 *p = (uint16 *) &Memory.VRAM [PPU.BG[2].SCBase << 1];
	for (int l = 0; l < 32; l++)
	{
	    for (int c = 0; c < 32; c++, p++)
	    {
		printf ("%04x,", *p++);
	    }
	    printf ("\n");
	}
    }
    if (*Line == 'c')
    {
	printf ("Colours:\n");
	for (int i = 0; i < 256; i++)
	{
	    printf ("%02x%02x%02x  ", PPU.CGDATA[i] & 0x1f,
		    (PPU.CGDATA[i] >> 5) & 0x1f,
		    (PPU.CGDATA[i] >> 10) & 0x1f);
	}
	printf ("\n");
    }
    if (*Line == 'S')
    {
	int SmallSize, LargeSize;
	switch ((Memory.FillRAM[0x2101] >> 5) & 7)
	{
	case 0:
	    SmallSize = 1;
	    LargeSize = 2;
	    break;
	case 1:
	    SmallSize = 1;
	    LargeSize = 4;
	    break;
	case 2:
	    SmallSize = 1;
	    LargeSize = 8;
	    break;
	case 3:
	    SmallSize = 2;
	    LargeSize = 4;
	    break;
	case 4:
	    SmallSize = 2;
	    LargeSize = 8;
	    break;
	case 5:
	default:
	    SmallSize = 4;
	    LargeSize = 8;
	    break;
	}
	printf ("Sprites: Small: %d, Large: %d, OAMAddr: 0x%04x, OBJNameBase: 0x%04x, OBJNameSelect: 0x%04x, First: %d\nVisible count - ",
		SmallSize, LargeSize, PPU.OAMAddr, PPU.OBJNameBase,
		PPU.OBJNameSelect, PPU.FirstSprite);
	for (int p = 0; p < 4; p++)
	{
	    int c = 0;
	    int i;
	    for (i = 0; GFX.OBJList [i] >= 0; i++)
	    {
		if (PPU.OBJ[GFX.OBJList [i]].Priority == p)
		    c++;
	    }
	    printf ("Priority %d: %03d, ", p, c);
	}
	printf ("\n");
	for (int i = 0; i < 128; i++)
	{
	    printf ("X:%3d Y:%3d %c%c%d%c ",
		    PPU.OBJ[i].HPos,
		    PPU.OBJ[i].VPos,
		    PPU.OBJ[i].VFlip ? 'V' : 'v',
		    PPU.OBJ[i].HFlip ? 'H' : 'h',
		    PPU.OBJ[i].Priority,
		    PPU.OBJ[i].Size ? 'S' : 's');
	    if (i % 4 == 3)
		printf ("\n");
	}
    }
    if (*Line == 'T')
    {
	if (Line [1] == 'S')
	{
	    SA1.Flags ^= TRACE_FLAG;
	    if (SA1.Flags & TRACE_FLAG)
	    {
		printf ("SA1 CPU instruction tracing enabled.\n");
		if (trace2 == NULL)
		    trace2 = fopen ("trace_sa1.log", "wb");
	    }
	    else
	    {
		printf ("SA1 CPU instruction tracing disabled.\n");
		fclose (trace2);
		trace2 = NULL;
	    }
	}
	else
	{
	    CPU.Flags ^= TRACE_FLAG;
	    if (CPU.Flags & TRACE_FLAG)
	    {
		printf ("CPU instruction tracing enabled.\n");
		if (trace == NULL)
		    trace = fopen ("trace.log", "wb");
	    }
	    else
	    {
		printf ("CPU instruction tracing disabled.\n");
		fclose (trace);
		trace = NULL;
	    }
	}
    }
    if (*Line == 'A')
    {
	APU.Flags ^= TRACE_FLAG;
	extern FILE *apu_trace;
	if (APU.Flags & TRACE_FLAG)
	{
#ifdef SPCTOOL
	    printf ("ENABLED\n");
	    _SetSPCDbg (TraceSPC);                   //Install debug handler
#endif
	    if (apu_trace == NULL)
		apu_trace = fopen ("aputrace.log", "wb");
	}
	else
	{
#ifdef SPCTOOL
	    _SetSPCDbg (NULL);
#endif
	    if (apu_trace)
	    {
		fclose (apu_trace);
		apu_trace = NULL;
	    }
	}
		
	printf ("APU tracing %s\n", APU.Flags & TRACE_FLAG ? "enabled" :
		"disabled");
    }
    if (*Line == 'B')
    {
	Settings.TraceSoundDSP ^= 1;
	printf ("Sound DSP register tracing %s\n", Settings.TraceSoundDSP ?
						   "enabled" : "disabled");
	S9xOpenCloseSoundTracingFile (Settings.TraceSoundDSP);
    }
    if (*Line == 'b')
	S9xPrintAPUState ();

    if (*Line == 'C')
    {
	printf ("SPC700 sample addresses at 0x%04x:\n", APU.DSP [APU_DIR] << 8);
	for (int i = 0; i < 256; i++)
	{
	    uint8 *dir = IAPU.RAM + 
		    (((APU.DSP [APU_DIR] << 8) +
		      i * 4) & 0xffff);
	    int addr = *dir + (*(dir + 1) << 8);
	    int addr2 = *(dir + 2) + (*(dir + 3) << 8);
	    printf ("%04X %04X;", addr, addr2);
	    if (i % 8 == 7)
		printf ("\n");
	}
    }
    if (*Line == 'R')
    {
	S9xReset ();
	printf ("SNES reset.\n");
	CPU.Flags |= DEBUG_MODE_FLAG;
    }
    if (strncmp (Line, "ad", 2) == 0)
    {
	int Count = 16;
	Address = 0;
	if (sscanf (Line+2, "%x,%x", &Address, &Count) != 2)
	{
	    if (sscanf (Line + 2, "%x", &Address) == 1)
		Count = 16;
	}
	printf ("APU RAM dump:\n");
	for (int l = 0; l < Count; l += 16)
	{
	    printf ("%04X ", Address);
	    for (int i = 0; i < 16; i++)
		printf ("%02X ", IAPU.RAM [Address++]);
	    printf ("\n");
	}
	*Line = 0;
    }
    if (*Line == 'a')
    {
	printf ("APU in-ports: %02X %02X %02X %02X\n",
		IAPU.RAM [0xF4], IAPU.RAM [0xF5], IAPU.RAM [0xF6], IAPU.RAM [0xF7]);
#ifdef SPCTOOL
	printf ("APU out-ports: %02X %02X %02X %02X\n",
		_SPCOutP [0], _SPCOutP [1], _SPCOutP [2], _SPCOutP [3]);
#else
	printf ("APU out-ports: %02X %02X %02X %02X\n",
		APU.OutPorts [0], APU.OutPorts [1], APU.OutPorts [2], APU.OutPorts [3]);
#endif
	printf ("ROM/RAM switch: %s\n", (IAPU.RAM [0xf1] & 0x80) ? "ROM" : "RAM");
	for (int i = 0; i < 3; i++)
	    if (APU.TimerEnabled [i])
		printf ("Timer%d enabled, Value: 0x%03X, 4-bit: 0x%02X, Target: 0x%03X\n",
			i, APU.Timer [i], IAPU.RAM [0xfd + i], APU.TimerTarget [i]);
    }
    if (*Line == 'P')
    {
	Settings.TraceDSP = !Settings.TraceDSP;
	printf ("DSP tracing %s\n", Settings.TraceDSP ? "enabled" : "disabled");
    }
    if (Line[0] == 'p')
    {
	S9xBreakpoint[5].Enabled = FALSE;
	Address += S9xOPrint (String, Bank, Address);
	if (strncmp (&String[18], "JMP", 3) != 0 &&
		strncmp (&String[18], "JML", 3) != 0 &&
		strncmp (&String[18], "RT", 2) != 0 &&
		strncmp (&String[18], "BRA", 3))
	{
	    S9xBreakpoint[5].Enabled = TRUE;
	    S9xBreakpoint[5].Bank = Bank;
	    S9xBreakpoint[5].Address = Address;
	}
	else
	{
	    CPU.Flags |= SINGLE_STEP_FLAG;
	    CPU.Flags &= ~DEBUG_MODE_FLAG;
	}
    }
    if (Line[0] == 'b')
    {
	if (Line[1] == 's')
	{
	    GetNumber (Line + 2, &Hold);
	    if (Hold > 4)
		Hold = 0;
	    if (Hold < 5)
		if (GetStartAddress (Line + 5, &Bank, &Address) == -1)
		{
		    //Clear S9xBreakpoint
		    S9xBreakpoint[Hold].Enabled = FALSE;
		}
		else
		{
		    //Set S9xBreakpoint
		    S9xBreakpoint[Hold].Enabled = TRUE;
		    S9xBreakpoint[Hold].Bank = Bank;
		    S9xBreakpoint[Hold].Address = Address;
		    CPU.Flags |= BREAK_FLAG;
		}
	    Line = "bv";
	}
	if (Line[1] == 'v')
	{
	    Number = 0;
	    if (GetNumber (Line + 2, &Number) == -1 &&
		    Number < 5)
	    {
		//Show All Breakpoints
		    DPrint ("Breakpoints:");
		for (Number = 0; Number != 5; Number++)
		{
		    if (S9xBreakpoint[Number].Enabled)
			sprintf (String, "%i @ $%02X:%04X", Number, S9xBreakpoint[Number].Bank, S9xBreakpoint[Number].Address);
		    else
			sprintf (String, "%i @ Disabled", Number);
		    DPrint (String);
		}
	    }
	    else
	    {
		//Show selected S9xBreakpoint
		    DPrint ("Breakpoint:");
		if (S9xBreakpoint[Number].Enabled)
		    sprintf (String, "%i @ $%02X:%04X", Number, S9xBreakpoint[Number].Bank, S9xBreakpoint[Number].Address);
		else
		    sprintf (String, "%i @ Disabled", Number);
		DPrint (String);
	    }
	}
    }
    if (Line[0] == '?' || strcasecmp (Line, "help") == 0)
    {
	for (short Counter = 0; HelpMessage[Counter] != NULL; Counter++)
	    DPrint (HelpMessage[Counter]);
    }
    if (Line[0] == 't')
    {
	CPU.Flags |= SINGLE_STEP_FLAG;
	CPU.Flags &= ~DEBUG_MODE_FLAG;
    }
    if (Line[0] == 'f')
    {
	CPU.Flags |= FRAME_ADVANCE_FLAG;
	CPU.Flags &= ~DEBUG_MODE_FLAG;
	// Render this frame
	IPPU.RenderThisFrame = TRUE;
	IPPU.FrameSkip = 0;
	if (sscanf (&Line [1], "%d", &ICPU.FrameAdvanceCount) != 1)
	    ICPU.Frame = 0;
    }

    if (Line[0] == 'g')
    {
	S9xBreakpoint[5].Enabled = FALSE;
	int i;
	bool8 found = FALSE;
	for (i = 0; i < 5; i++)
	{
	    if (S9xBreakpoint[i].Enabled)
	    {
		found = TRUE;
		if (S9xBreakpoint[i].Bank == Registers.PB &&
		    S9xBreakpoint[i].Address == CPU.PC - CPU.PCBase)
		{
		    S9xBreakpoint[i].Enabled = 2;
		    break;
		}
	    }
	}
	if (!found)
	    CPU.Flags &= ~BREAK_FLAG;
	ErrorCode = GetStartAddress (Line, &Bank, &Address);
	if (ErrorCode == 1)
	{
	    S9xBreakpoint[5].Enabled = TRUE;
	    S9xBreakpoint[5].Bank = Bank;
	    S9xBreakpoint[5].Address = Address;
	    CPU.Flags |= BREAK_FLAG;
	}
	CPU.Flags &= ~DEBUG_MODE_FLAG;
    }
    if (*Line == 'D')
    {
	Settings.TraceDMA = !Settings.TraceDMA;
	printf ("DMA tracing %s\n", Settings.TraceDMA ? "enabled" : "disabled");
    }
    if (*Line == 'V')
    {
	Settings.TraceVRAM = !Settings.TraceVRAM;
	printf ("Non-DMA VRAM write tracing %s\n", Settings.TraceVRAM ? "enabled" : "disabled");
    }
    if (*Line == 'H')
    {
	Settings.TraceHDMA = !Settings.TraceHDMA;
	printf ("H-DMA tracing %s\n", Settings.TraceHDMA ? "enabled" : "disabled");
    }
    if (*Line == 'U')
    {
	Settings.TraceUnknownRegisters = !Settings.TraceUnknownRegisters;
	printf ("Unknown registers read/write tracing %s\n",
		Settings.TraceUnknownRegisters ? "enabled" : "disabled");
    }
    if (Line[0] == 'd')
    {
	int CLine;
	int CByte;
	uint32 Cycles = CPU.Cycles;
	uint8 MemoryByte;

	if (Debug.Dump.Bank != 0 || Debug.Dump.Address != 0)
	{
	    Bank = Debug.Dump.Bank;
	    Address = Debug.Dump.Address;
	}
	ErrorCode = GetStartAddress (Line, &Bank, &Address);
	for (CLine = 0; CLine != 10; CLine++)
	{
	    sprintf (String, "$%02X:%04X", Bank, Address);
	    for (CByte = 0; CByte != 16; CByte++)
	    {
		if (Address + CByte == 0x2140 ||
		    Address + CByte == 0x2141 ||
		    Address + CByte == 0x2142 ||
		    Address + CByte == 0x2143 ||
		    Address + CByte == 0x4210)
		{
		    MemoryByte = 0;
		}
		else
		{
		    MemoryByte = S9xGetByte ((Bank << 16) + Address + CByte);
		}
		sprintf (String, "%s %02X", String, MemoryByte);
	    }
	    sprintf (String, "%s-", String);
	    for (CByte = 0; CByte != 16; CByte++)
	    {
		if (Address + CByte == 0x2140 ||
		    Address + CByte == 0x2141 ||
		    Address + CByte == 0x2142 ||
		    Address + CByte == 0x2143 ||
		    Address + CByte == 0x4210)
		{
		    MemoryByte = 0;
		}
		else
		{
		    MemoryByte = S9xGetByte ((Bank << 16) + Address + CByte);
		}
		if (MemoryByte < 32 || MemoryByte >= 127)
		    MemoryByte = '?';
		sprintf (String, "%s%c", String, MemoryByte);
	    }
	    Address += 16;
	    DPrint (String);
	}
	Debug.Dump.Bank = Bank;
	Debug.Dump.Address = Address;
	CPU.Cycles = Cycles;
    }

    if (*Line == 'q')
	S9xExit ();
    if (*Line == 'W')
	WhatsMissing ();
    if (*Line == 'w')
	WhatsUsed ();
    if (Line[0] == 'r')
    {
#if 0
	sprintf (String,
		 "A[%04X] X[%04X] Y[%04X] S[%04X] D[%04X] DB[%02X] P[%02X] F[%s %s %s %s %s %s %s %s / %s]",
		 Registers.A.W,
		 Registers.X.W,
		 Registers.Y.W,
		 Registers.S.W,
		 Registers.D.W,
		 Registers.DB,
		 Registers.PL,
		 (Registers.P.W & 128) != 0 ? "N" : "n",
		 (Registers.P.W & 64) != 0 ? "V" : "v",
		 (Registers.P.W & 32) != 0 ? "M" : "m",
		 (Registers.P.W & 16) != 0 ? "X" : "x",
		 (Registers.P.W & 8) != 0 ? "D" : "d",
		 (Registers.P.W & 4) != 0 ? "I" : "i",
		 (Registers.P.W & 2) != 0 ? "Z" : "z",
		 (Registers.P.W & 1) != 0 ? "C" : "c",
		 (Registers.P.W & 256) != 0 ? "E" : "e");
	DPrint (String);
#endif	
	S9xOPrint (String, Bank, Address);
	DPrint (String);
    }
    if (Line[0] == 'u')
    {
	if (Debug.Unassemble.Bank != 0 || Debug.Unassemble.Address != 0)
	{
	    Bank = Debug.Unassemble.Bank;
	    Address = Debug.Unassemble.Address;
	}
	ErrorCode = GetStartAddress (Line, &Bank, &Address);
	for (short Counter = 0; Counter != 10; Counter++)
	{
	    Address += S9xOPrint (String, Bank, Address);
	    DPrint (String);
	}
	Debug.Unassemble.Bank = Bank;
	Debug.Unassemble.Address = Address;
    }
    DPrint ("");
    return;
}
static void PrintWindow (uint8 * a)
{
    for (int i = 0; i < 6; i++)
	if (a[i])
	    switch (i)
	    {
	    case 0:
		printf ("Background 0, ");
		break;
	    case 1:
		printf ("Background 1, ");
		break;
	    case 2:
		printf ("Background 2, ");
		break;
	    case 3:
		printf ("Background 3, ");
		break;
	    case 4:
		printf ("Objects, ");
		break;
	    case 5:
		printf ("Colour window, ");
		break;
	    }
}
static char *ClipFn (int logic)
{
    switch (logic)
    {
    case CLIP_OR:
	return ("OR");
    case CLIP_AND:
	return ("AND");
    case CLIP_XOR:
	return ("XOR");
    case CLIP_XNOR:
	return ("XNOR");
    default:
	return ("???");
    }
}

static void WhatsUsed ()
{
    printf ("V-line: %ld, H-Pos: %ld\n", CPU.V_Counter, CPU.Cycles);
    printf ("Screen mode: %d, ", PPU.BGMode);
    if (PPU.BGMode <= 1 && (Memory.FillRAM [0x2105] & 8))
	printf ("(BG#2 Priority)");
    
    printf ("Brightness: %d", PPU.Brightness);
    if (Memory.FillRAM[0x2100] & 0x80)
	printf (" (screen blanked)");
    printf ("\n");
    if (Memory.FillRAM[0x2133] & 1)
	printf ("Interlace, ");
    if (Memory.FillRAM[0x2133] & 4)
	printf ("240 line visible, ");
    if (Memory.FillRAM[0x2133] & 8)
	printf ("Pseudo 512 pixels horizontal resolution, ");
    if (Memory.FillRAM[0x2133] & 0x40)
	printf ("Mode 7 priority per pixel, ");
    printf ("\n");
    if (PPU.BGMode == 7 && (Memory.FillRAM[0x211a] & 3))
	printf ("Mode 7 flipping, ");
    if (PPU.BGMode == 7)
	printf ("Mode 7 screen repeat: %d,", (Memory.FillRAM[0x211a] & 0xc0) >> 6);
    if (Memory.FillRAM[0x2130] & 1)
	printf ("32K colour mode, ");
    if (PPU.BGMode == 7)
    {
	// Sign extend 13 bit values to 16 bit values...
	if (PPU.CentreX & (1 << 12))
	    PPU.CentreX |= 0xe000;
	if (PPU.CentreY & (1 << 12))
	    PPU.CentreY |= 0xe000;

	printf ("\nMatrix A: %.3f, B: %.3f, C: %.3f, D: %.3f, Centre X: %d Y:%d\n",
		(double) PPU.MatrixA / 256, (double) PPU.MatrixB / 256,
		(double) PPU.MatrixC / 256, (double) PPU.MatrixD / 256,
		PPU.CentreX, PPU.CentreY);
    }
    if ((Memory.FillRAM[0x2106] & 0xf0) && (Memory.FillRAM[0x2106] & 0x0f))
    {
	printf ("\nMosaic effect(%d) on ", PPU.Mosaic);
	for (int i = 0; i < 4; i++)
	    if (Memory.FillRAM[0x2106] & (1 << i))
		printf ("BG%d,", i);
	printf (",");
    }
    if (PPU.HVBeamCounterLatched)
	printf ("V and H beam pos latched, ");
    if (Memory.FillRAM[0x4200] & 0x20)
	printf ("V-IRQ enabled at %d\n", PPU.IRQVBeamPos);
    if (Memory.FillRAM[0x4200] & 0x10)
	printf ("H-IRQ enabled at %d\n", PPU.IRQHBeamPos);
    if (Memory.FillRAM[0x4200] & 0x80)
	printf ("V-blank NMI enabled\n");
    int i;
    for (i = 0; i < 8; i++)
    {
	if (missing.hdma_this_frame & (1 << i))
	{
	    printf ("H-DMA %d [%d] 0x%02X%04X->0x21%02X %s %s 0x%02X%04X %s addressing\n",
		    i, DMA[i].TransferMode,
		    DMA[i].ABank, DMA[i].AAddress, DMA[i].BAddress,
		    DMA[i].AAddressDecrement ? "dec" : "inc",
		    DMA[i].Repeat ? "repeat" : "continue",
		    DMA[i].IndirectBank, DMA[i].IndirectAddress,
		    DMA[i].HDMAIndirectAddressing ? "indirect" : "absolute");
	}
    }
    for (i = 0; i < 8; i++)
    {
	if (missing.dma_this_frame & (1 << i))
	{
	    printf ("DMA %d %d 0x%02X%04X->0x21%02X Num: %d %s\n",
		    i, DMA[i].TransferMode, DMA[i].ABank, DMA[i].AAddress,
		    DMA[i].BAddress, DMA[i].TransferBytes,
		    DMA[i].AAddressFixed ? "fixed" :
		    (DMA[i].AAddressDecrement ? "dec" : "inc"));
	}
    }
    printf ("VRAM write address: 0x%04x(%s), Full Graphic: %d, Address inc: %d\n",
	    PPU.VMA.Address,
	    PPU.VMA.High  ? "Byte" : "Word",
	    PPU.VMA.FullGraphicCount, PPU.VMA.Increment);

    for (i = 0; i < 4; i++)
    {
	printf ("BG%d: VOffset:%d, HOffset:%d, W:%d, H:%d, TS:%d, BA:0x%04x, TA:0x%04X\n",
		i, PPU.BG[i].VOffset, PPU.BG[i].HOffset,
		(PPU.BG[i].SCSize & 1) * 32 + 32, 
		(PPU.BG[i].SCSize & 2) * 16 + 32,
		PPU.BG[i].BGSize * 8 + 8,
		PPU.BG[i].SCBase,
		PPU.BG[i].NameBase);
    }
    char *s = "";
    switch ((Memory.FillRAM [0x2130] & 0xc0) >> 6)
    {
    case 0: s = "always on";   break;
    case 1: s = "inside";   break;
    case 2: s = "outside";   break;
    case 3: s = "always off";   break;
    }
    printf ("Main screen (%s): ", s);
    for (i = 0; i < 5; i++)
	if (Memory.FillRAM[0x212c] & (1 << i))
	    switch (i)
	    {
	    case 0:
		printf ("BG0,");
		break;
	    case 1:
		printf ("BG1,");
		break;
	    case 2:
		printf ("BG2,");
		break;
	    case 3:
		printf ("BG3,");
		break;
	    case 4:
		printf ("OBJ,");
		break;
	    }
    
    switch ((Memory.FillRAM [0x2130] & 0x30) >> 4)
    {
    case 0: s = "always on";   break;
    case 1: s = "inside";   break;
    case 2: s = "outside";   break;
    case 3: s = "always off";   break;
    }
	
    printf ("\nSub-screen (%s): ", s);
    for (i = 0; i < 5; i++)
	if (Memory.FillRAM[0x212d] & (1 << i))
	    switch (i)
	    {
	    case 0:
		printf ("BG0,");
		break;
	    case 1:
		printf ("BG1,");
		break;
	    case 2:
		printf ("BG2,");
		break;
	    case 3:
		printf ("BG3,");
		break;
	    case 4:
		printf ("OBJ,");
		break;
	    }
    printf ("\n");
    if ((Memory.FillRAM[0x2131] & 0x3f))
    {
	if (Memory.FillRAM[0x2131] & 0x80)
	{
	    if (Memory.FillRAM[0x2130] & 0x02)
		printf ("Subscreen subtract");
	    else
		printf ("Fixed colour subtract");
	}
	else
	{
	    if (Memory.FillRAM[0x2130] & 0x02)
		printf ("Subscreen addition");
	    else
		printf ("Fixed colour addition");
	}
	if (Memory.FillRAM [0x2131] & 0x40)
	    printf ("(half):");
	else
	    printf (":");

	for (i = 0; i < 6; i++)
	    if (Memory.FillRAM[0x2131] & (1 << i))
	    {
		switch (i)
		{
		case 0:
		    printf ("BG0,");
		    break;
		case 1:
		    printf ("BG1,");
		    break;
		case 2:
		    printf ("BG2,");
		    break;
		case 3:
		    printf ("BG3,");
		    break;
		case 4:
		    printf ("OBJ,");
		    break;
		case 5:
		    printf ("BACK,");
		    break;
		}
	    }
	printf ("\n");
    }
    printf ("\nWindow 1 (%d, %d, %02x, %02x): ", PPU.Window1Left,
	    PPU.Window1Right, Memory.FillRAM [0x212e], Memory.FillRAM [0x212f]);
    for (i = 0; i < 6; i++)
	if (PPU.ClipWindow1Enable [i])
	    switch (i)
	    {
	    case 0:
		printf ("BG0(%s-%s),", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[0]));
		break;
	    case 1:
		printf ("BG1(%s-%s),", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[1]));
		break;
	    case 2:
		printf ("BG2(%s-%s),", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[2]));
		break;
	    case 3:
		printf ("BG3(%s-%s),", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[3]));
		break;
	    case 4:
		printf ("OBJ(%s-%s),", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[4]));
		break;
	    case 5:
		printf ("COL(%s-%s)", PPU.ClipWindow1Inside [i] ? "I" : "O",
			ClipFn (PPU.ClipWindowOverlapLogic[5]));
		break;
	    }

    printf ("\nWindow 2 (%d, %d): ", PPU.Window2Left,
	    PPU.Window2Right);
    for (i = 0; i < 6; i++)
	if (PPU.ClipWindow2Enable [i])
	    switch (i)
	    {
	    case 0:
		printf ("BG0(%s),", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    case 1:
		printf ("BG1(%s),", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    case 2:
		printf ("BG2(%s),", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    case 3:
		printf ("BG3(%s),", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    case 4:
		printf ("OBJ(%s),", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    case 5:
		printf ("COL(%s)", PPU.ClipWindow2Inside [i] ? "I" : "O");
		break;
	    }

    printf ("\nFixed colour: %02x%02x%02x\n", PPU.FixedColourRed,
	    PPU.FixedColourGreen, PPU.FixedColourBlue);
}

static void WhatsMissing ()
{
    printf ("Processor: ");
    if (missing.emulate6502)
	printf ("emulation mode, ");
    if (missing.decimal_mode)
	printf ("decimal mode,");
    if (missing.mv_8bit_index)
	printf ("MVP/MVN with 8bit index registers and XH or YH > 0,");
    if (missing.mv_8bit_acc)
	printf ("MVP/MVN with 8bit accumulator > 255");
    printf ("\nScreen modes used:");
    int i;
    for (i = 0; i < 8; i++)
	if (missing.modes[i])
	    printf (" %d,", i);
    printf ("\n");
    if (missing.interlace)
	printf ("Interlace, ");
    if (missing.pseudo_512)
	printf ("Pseudo 512 pixels horizontal resolution, ");
    if (missing.lines_239)
	printf ("240 lines visible,");
    if (missing.sprite_double_height)
	printf ("double-hight sprites,");
    printf ("\n");
    if (missing.mode7_fx)
	printf ("Mode 7 rotation/scaling, ");
    if (missing.matrix_read)
	printf ("Mode 7 read matrix registers, ");
    if (missing.mode7_flip)
	printf ("Mode 7 flipping, ");
    if (missing.mode7_bgmode)
	printf ("Mode 7 priority per pixel, ");
    if (missing.direct)
	printf ("Direct 32000 colour mode");
    printf ("\n");
    if (missing.mosaic)
	printf ("Mosaic effect, ");
    if (missing.subscreen)
	printf ("Subscreen enabled, ");
    if (missing.subscreen_add)
	printf ("Subscreen colour add, ");
    if (missing.subscreen_sub)
	printf ("Subscreen colour subtract, ");
    if (missing.fixed_colour_add)
	printf ("Fixed colour add, ");
    if (missing.fixed_colour_sub)
	printf ("Fixed colour subtract");
    printf ("\n");
    printf ("Window 1 enabled on:");
    PrintWindow (missing.window1);
    printf ("\nWindow 2 enabled on:");
    PrintWindow (missing.window2);
    printf ("\n");
    if (missing.bg_offset_read)
	printf ("BG offset read, ");
    if (missing.oam_address_read)
	printf ("OAM address read,");
    if (missing.sprite_priority_rotation)
	printf ("Sprite priority rotation, ");
    if (missing.fast_rom)
	printf ("Fast 3.58MHz ROM access enabled, ");
    if (missing.matrix_multiply)
	printf ("Matrix multiply 16bit by 8bit used");
    printf ("\n");
    if (missing.virq)
	printf ("V-position IRQ used at line %d, ", missing.virq_pos);
    if (missing.hirq)
	printf ("H-position IRQ used at position %d, ", missing.hirq_pos);
    printf ("\n");
    if (missing.h_v_latch)
	printf ("H and V-Pos latched, ");
    if (missing.h_counter_read)
	printf ("H-Pos read, ");
    if (missing.v_counter_read)
	printf ("V-Pos read");
    printf ("\n");
    if (missing.oam_read)
	printf ("OAM read, ");
    if (missing.vram_read)
	printf ("VRAM read, ");
    if (missing.cgram_read)
	printf ("CG-RAM read, ");
    if (missing.wram_read)
	printf ("WRAM read, ");
    if (missing.dma_read)
	printf ("DMA read,");
    if (missing.vram_inc)
	printf ("VRAM inc: %d,", missing.vram_inc);
    if (missing.vram_full_graphic_inc)
	printf ("VRAM full graphic inc: %d,", missing.vram_full_graphic_inc);
    printf ("\n");
    for (i = 0; i < 8; i++)
    {
	if (missing.hdma[i].used)
	{
	    printf ("HDMA %d, 0x%02X%04X->0x21%02X %s ", i,
		    missing.hdma[i].abus_bank, missing.hdma[i].abus_address,
		    missing.hdma[i].bbus_address,
		missing.hdma[i].indirect_address ? "indirect" : "absolute");
	    if (missing.hdma[i].force_table_address_write)
		printf ("Forced address write, ");
	    if (missing.hdma[i].force_table_address_read)
		printf ("Current address read, ");
	    if (missing.hdma[i].line_count_write)
		printf ("Line count write, ");
	    if (missing.hdma[i].line_count_read)
		printf ("Line count read");
	    printf ("\n");
	}
    }
    for (i = 0; i < 8; i++)
    {
	if (missing.dma_channels & (1 << i))
	{
	    printf ("DMA %d %d 0x%02X%04X->0x21%02X Num: %d %s\n",
		    i, DMA[i].TransferMode, DMA[i].ABank, DMA[i].AAddress,
		    DMA[i].BAddress, DMA[i].TransferBytes,
		    DMA[i].AAddressFixed ? "fixed" :
		    (DMA[i].AAddressDecrement ? "dec" : "inc"));
	}
    }
    if (missing.unknownppu_read)
	printf ("Read from unknown PPU register: $%04X\n", missing.unknownppu_read);
    if (missing.unknownppu_write)
	printf ("Write to unknown PPU register: $%04X\n", missing.unknownppu_write);
    if (missing.unknowncpu_read)
	printf ("Read from unknown CPU register: $%04X\n", missing.unknowncpu_read);
    if (missing.unknowncpu_write)
	printf ("Write to unknown CPU register: $%04X\n", missing.unknowncpu_write);
    if (missing.unknowndsp_read)
	printf ("Read from unknown DSP register: $%04X\n", missing.unknowndsp_read);
    if (missing.unknowndsp_write)
	printf ("Write to unknown DSP register: $%04X\n", missing.unknowndsp_write);
}

void S9xDoDebug ()
{
    char Line[513];
    Debug.Dump.Bank = 0;
    Debug.Dump.Address = 0;
    Debug.Unassemble.Bank = 0;
    Debug.Unassemble.Address = 0;
    S9xTextMode ();
    ProcessDebugCommand ("r");
    while (CPU.Flags & DEBUG_MODE_FLAG)
    {
	printf ("> ");
	fflush (stdout);
	fgets (Line, sizeof (Line) - 1, stdin);
	Line [strlen (Line) - 1] = 0;
	ProcessDebugCommand (Line);
    }
    if (!(CPU.Flags & SINGLE_STEP_FLAG))
	S9xGraphicsMode ();
}

void S9xTrace ()
{
	if(!trace)
		trace=fopen("trace.log", "a");
    char String [512];
    S9xOPrint (String, Registers.PB, CPU.PC - CPU.PCBase);
    fprintf (trace, "%s\n", String);
}

void S9xSA1Trace ()
{
    char String [512];
    S9xSA1OPrint (String, SA1Registers.PB, SA1.PC - SA1.PCBase);
    fprintf (trace2, "%s\n", String);
    fflush (trace2);
}

void S9xTraceMessage (const char *s)
{
	if(s)
	{
    if (trace)
	fprintf (trace, "%s\n", s);
    else
    if (trace2)
	fprintf (trace2, "%s\n", s);
	}
}

extern "C" void TraceSA1 ()
{
    SA1.Flags ^= TRACE_FLAG;
    if (SA1.Flags & TRACE_FLAG)
    {
	printf ("SA1 CPU instruction tracing enabled.\n");
	if (trace2 == NULL)
	    trace2 = fopen ("trace_sa1.log", "wb");
    }
    else
    {
	printf ("SA1 CPU instruction tracing disabled.\n");
	fclose (trace2);
	trace2 = NULL;
    }
}

extern "C" void Trace ()
{
    CPU.Flags ^= TRACE_FLAG;
    if (CPU.Flags & TRACE_FLAG)
    {
	if (trace == NULL)
	    trace = fopen ("trace.log", "wb");
	printf ("CPU instruction tracing enabled.\n");
    }
    else
    {
	printf ("CPU instruction tracing disabled.\n");
	fclose (trace);
	trace = NULL;
    }
}

#endif