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MCUME/MCUME_teensy/teensyspeccy/ConDebug.c

277 wiersze
7.7 KiB
C
Executable File
Czysty Bezpośredni odnośnik Wina Historia

/** Z80: portable Z80 emulator *******************************/
/** **/
/** ConDebug.c **/
/** **/
/** This file contains a console version of the built-in **/
/** debugger, using EMULib's Console.c. When -DCONDEBUG is **/
/** ommitted, ConDebug.c just includes the default command **/
/** line based debugger (Debug.c). **/
/** **/
/** Copyright (C) Marat Fayzullin 2005-2007 **/
/** You are not allowed to distribute this software **/
/** commercially. Please, notify me, if you make any **/
/** changes to this file. **/
/*************************************************************/
#ifdef DEBUG
#ifndef CONDEBUG
/** Normal DebugZ80() ****************************************/
/** When CONDEBUG #undefined, we use plain command line. **/
/*************************************************************/
#include "Debug.c"
#else
/** Console DebugZ80() ***************************************/
/** When CONDEBUG #defined, we use EMULib console. **/
/*************************************************************/
#include "Z80.h"
#include "Console.h"
#include <stdlib.h>
#define DebugZ80 OriginalDebugZ80
#include "Debug.c"
#undef DebugZ80
#define CLR_BACK PIXEL(255,255,255)
#define CLR_TEXT PIXEL(0,0,0)
#define CLR_DIALOG PIXEL(0,100,0)
#define CLR_PC PIXEL(255,0,0)
#define CLR_SP PIXEL(0,0,100)
static byte ChrDump(byte C)
{
return((C>=32)&&(C<128)? C:'.');
}
/** DebugZ80() ***********************************************/
/** This function should exist if DEBUG is #defined. When **/
/** Trace!=0, it is called after each command executed by **/
/** the CPU, and given the Z80 registers. **/
/*************************************************************/
byte DebugZ80(Z80 *R)
{
char S[1024];
word A,Addr,ABuf[20];
int J,I,K,X,Y,MemoryDump,DrawWindow,ExitNow;
/* If we don't have enough screen estate... */
if((VideoW<32*8)||(VideoH<23*8))
{
/* Show warning message */
CONMsg(
-1,-1,-1,-1,PIXEL(255,255,255),PIXEL(255,0,0),
"Error","Screen is\0too small!\0\0"
);
/* Continue emulation */
R->Trace=0;
return(1);
}
X = ((VideoW>>3)-32)>>1;
Y = ((VideoH>>3)-23)>>1;
Addr = R->PC.W;
A = ~Addr;
K = 0;
for(DrawWindow=1,MemoryDump=ExitNow=0;!ExitNow&&VideoImg;)
{
if(DrawWindow)
{
CONWindow(X,Y,32,23,CLR_TEXT,CLR_BACK,"Z80 Debugger");
sprintf(S,"PC %04X",R->PC.W);
CONSetColor(CLR_BACK,CLR_PC);
CONPrint(X+24,Y+18,S);
sprintf(S,"SP %04X",R->SP.W);
CONSetColor(CLR_BACK,CLR_SP);
CONPrint(X+24,Y+19,S);
CONSetColor(CLR_TEXT,CLR_BACK);
sprintf(S,
" %c%c%c%c%c%c\n\n"
"AF %04X\nBC %04X\nDE %04X\nHL %04X\nIX %04X\nIY %04X\n\n"
"AF'%04X\nBC'%04X\nDE'%04X\nHL'%04X\n\n"
"IR %02X%02X",
R->AF.B.l&0x80? 'S':'.',R->AF.B.l&0x40? 'Z':'.',R->AF.B.l&0x10? 'H':'.',
R->AF.B.l&0x04? 'P':'.',R->AF.B.l&0x02? 'N':'.',R->AF.B.l&0x01? 'C':'.',
R->AF.W,R->BC.W,R->DE.W,R->HL.W,
R->IX.W,R->IY.W,
R->AF1.W,R->BC1.W,R->DE1.W,R->HL1.W,
R->I,R->R
);
CONPrint(X+24,Y+2,S);
sprintf(S,
"%s %s",
R->IFF&0x04? "IM2":R->IFF&0x02? "IM1":"IM0",
R->IFF&0x01? "EI":"DI"
);
CONPrint(X+25,Y+21,S);
DrawWindow=0;
A=~Addr;
}
/* If top address has changed... */
if(A!=Addr)
{
/* Clear display */
CONBox((X+1)<<3,(Y+2)<<3,23*8,20*8,CLR_BACK);
if(MemoryDump)
{
/* Draw memory dump */
for(J=0,A=Addr;J<20;J++,A+=4)
{
if(A==R->PC.W) CONSetColor(CLR_BACK,CLR_PC);
else if(A==R->SP.W) CONSetColor(CLR_BACK,CLR_SP);
else CONSetColor(CLR_TEXT,CLR_BACK);
sprintf(S,"%04X%c",A,A==R->PC.W? CON_MORE:A==R->SP.W? CON_LESS:':');
CONPrint(X+1,Y+J+2,S);
CONSetColor(CLR_TEXT,CLR_BACK);
sprintf(S,
"%02X %02X %02X %02X %c%c%c%c",
RdZ80(A),RdZ80(A+1),RdZ80(A+2),RdZ80(A+3),
ChrDump(RdZ80(A)),ChrDump(RdZ80(A+1)),
ChrDump(RdZ80(A+2)),ChrDump(RdZ80(A+3))
);
CONPrint(X+7,Y+J+2,S);
}
}
else
{
/* Draw listing */
for(J=0,A=Addr;J<20;J++)
{
if(A==R->PC.W) CONSetColor(CLR_BACK,CLR_PC);
else if(A==R->SP.W) CONSetColor(CLR_BACK,CLR_SP);
else CONSetColor(CLR_TEXT,CLR_BACK);
sprintf(S,"%04X%c",A,A==R->PC.W? CON_MORE:A==R->SP.W? CON_LESS:':');
CONPrint(X+1,Y+J+2,S);
ABuf[J]=A;
A+=DAsm(S,A);
CONSetColor(CLR_TEXT,CLR_BACK);
CONPrintN(X+7,Y+J+2,S,23);
}
}
/* Display redrawn */
A=Addr;
}
/* Draw pointer */
CONChar(X+6,Y+K+2,CON_ARROW);
/* Show screen buffer */
ShowVideo();
/* Get key code */
I=WaitKey();
/* Clear pointer */
CONChar(X+6,Y+K+2,' ');
/* Get and process key code */
switch(I)
{
case 'H':
CONMsg(
-1,-1,-1,-1,
CLR_BACK,CLR_DIALOG,
"Debugger Help",
"ENTER - Execute next opcode\0"
" UP - Previous opcode\0"
" DOWN - Next opcode\0"
" LEFT - Page up\0"
"RIGHT - Page down\0"
" H - This help page\0"
" G - Go to address\0"
" D - Disassembler view\0"
" M - Memory dump view\0"
" S - Show stack\0"
" J - Jump to cursor\0"
" R - Run to cursor\0"
" C - Continue execution\0"
" Q - Quit emulator\0"
);
DrawWindow=1;
break;
case CON_UP:
if(K) --K;
else
if(MemoryDump) Addr-=4;
else for(--Addr;Addr+DAsm(S,Addr)>A;--Addr);
break;
case CON_DOWN:
if(K<19) ++K;
else
if(MemoryDump) Addr+=4;
else Addr+=DAsm(S,Addr);
break;
case CON_LEFT:
if(MemoryDump)
Addr-=4*20;
else
{
for(I=20,Addr=~A;(Addr>A)||((A^Addr)&~Addr&0x8000);++I)
for(J=0,Addr=A-I;J<20;++J) Addr+=DAsm(S,Addr);
Addr=A-I+1;
}
break;
case CON_RIGHT:
if(MemoryDump)
Addr+=4*20;
else
for(J=0;J<20;++J) Addr+=DAsm(S,Addr);
break;
case CON_OK:
ExitNow=1;
break;
case 'Q':
return(0);
case CON_EXIT:
case 'C':
R->Trap=0xFFFF;
R->Trace=0;
ExitNow=1;
break;
case 'R':
R->Trap=ABuf[K];
R->Trace=0;
ExitNow=1;
break;
case 'M':
MemoryDump=1;
A=~Addr;
break;
case 'S':
MemoryDump=1;
Addr=R->SP.W;
K=0;
A=~Addr;
break;
case 'D':
MemoryDump=0;
A=~Addr;
break;
case 'G':
if(CONInput(-1,-1,CLR_BACK,CLR_DIALOG,"Go to Address:",S,5|CON_HEX))
{ Addr=strtol(S,0,16);K=0; }
DrawWindow=1;
break;
case 'J':
R->PC.W=ABuf[K];
A=~Addr;
break;
}
}
/* Continue emulation */
return(1);
}
#endif /* CONDEBUG */
#endif /* DEBUG */
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