diff options
Diffstat (limited to 'src/memmenu.c')
| -rw-r--r-- | src/memmenu.c | 301 |
1 files changed, 272 insertions, 29 deletions
diff --git a/src/memmenu.c b/src/memmenu.c index 9e1726b..807e49f 100644 --- a/src/memmenu.c +++ b/src/memmenu.c @@ -53,6 +53,13 @@ static const char ident_h[]=ESPEC_MEMMENU_H; #define GREEN GFXRGB(100,255,100) #define BLUE GFXRGB(100,100,255) +#define TRACE "trace" + + +/* ---------------------------------------- STATIC DATA +*/ +FILE *trace=NULL; + /* ---------------------------------------- PRIVATE FUNCTIONS */ @@ -68,7 +75,9 @@ static void DisplayMenu(void) { "1. Disassemble/Hex dump", "2. Disassemble to file ", - "3. Return ", + "3. Start/Stop trace log", + "4. Playback trace log ", + "5. Return ", NULL }; @@ -77,13 +86,13 @@ static void DisplayMenu(void) GFXClear(BLACK); Centre("MEMORY MENU",0,WHITE); - Centre("Select an option",8,WHITE); + Centre("Select an option",10,RED); f=0; while(menu[f]) { - Centre(menu[f],20+f*10,WHITE); + Centre(menu[f],25+f*10,WHITE); f++; } } @@ -105,6 +114,30 @@ static const char *FlagString(Z80Byte flag) } +void DisplayZ80State(Z80State *s, int y, Uint32 col) +{ + GFXPrintPaper(0,y,col,BLACK, + "PC=%4.4x A=%2.2x F=%s", + s->PC,s->AF>>8,FlagString(s->AF&0xff)); + y+=8; + GFXPrintPaper(0,y,col,BLACK, + "BC=%4.4x DE=%4.4x HL=%4.4x", + s->BC,s->DE,s->HL); + y+=8; + GFXPrintPaper(0,y,col,BLACK, + "IX=%4.4x IY=%4.4x SP=%4.4x", + s->IX,s->IY,s->SP); + y+=8; + GFXPrintPaper(0,y,col,BLACK, + "I=%2.2x IM=%2.2x R=%2.2x", + s->I,s->IM,s->R); + y+=8; + GFXPrintPaper(0,y,col,BLACK, + "IFF1=%2.2x IFF2=%2.2x", + s->IFF1,s->IFF2); +} + + static int StrEq(const char *a, const char *b) { while(*a && *b && tolower(*a)==tolower(*b)) @@ -173,6 +206,17 @@ static int EnterAddress(const char *prompt, Z80 *z80, Z80Word *w) } +static void EnterLong(const char *prompt, long *l) +{ + const char *p; + + p=GUIInputString(prompt ? prompt : "Value?",""); + + if (*p) + *l=strtol(p,NULL,0); +} + + static void DoDisassem(Z80 *z80, const Z80State *s) { static int hexmode=FALSE; @@ -188,7 +232,8 @@ static void DoDisassem(Z80 *z80, const Z80State *s) GFXClear(BLACK); - Centre("Press F1 for help",0,RED); + Centre("DISASSEMBLY",0,WHITE); + Centre("Press F1 for help",9,RED); curr=pc; @@ -198,7 +243,7 @@ static void DoDisassem(Z80 *z80, const Z80State *s) char *p; int y; - y=16+f*8; + y=24+f*8; GFXPrint(0,y,GREEN,"%4.4x",curr); @@ -336,6 +381,214 @@ static void DoDisassemFile(Z80 *z80, const Z80State *s) } +static int Instruction(Z80 *z80, Z80Val data) +{ + Z80State s; + + Z80GetState(z80,&s); + fwrite(&s,sizeof s,1,trace); + + return TRUE; +} + + +static void EnableTrace(Z80 *z80, Z80State *s) +{ + if (!trace) + { + trace=fopen(TRACE,"wb"); + + if (trace) + { + GUIMessage("NOTICE","Created trace log"); + Z80LodgeCallback(z80,Z80_Instruction,Instruction); + } + else + { + GUIMessage("ERROR","Failed to create trace log"); + } + } +} + + +static void DisableTrace(Z80 *z80) +{ + if (trace) + { + GUIMessage("NOTICE","Closing current trace log"); + fclose(trace); + trace=NULL; + Z80LodgeCallback(z80,Z80_Instruction,NULL); + } +} + + +static void PlaybackTrace(Z80 *z80) +{ + FILE *fp; + int quit; + long prev_pos; + long pos; + long max_pos; + Z80Word pc; + Z80State s; + + fp=fopen(TRACE,"rb"); + + if (!fp) + { + GUIMessage("ERROR","Couldn't open tracefile: " TRACE); + return; + } + + fseek(fp,0,SEEK_END); + + max_pos=ftell(fp)/sizeof s; + + if (max_pos==0) + { + GUIMessage("ERROR","Empty tracefile: " TRACE); + fclose(fp); + return; + } + + pos=0; + prev_pos=pos; + pc=0; + quit=FALSE; + + while(!quit) + { + SDL_Event *e; + size_t rd; + int f; + + GFXClear(BLACK); + + Centre("TRACE PLAYBACK",0,WHITE); + Centre("Press F1 for help",9,RED); + + fseek(fp,pos*sizeof s,SEEK_SET); + fread(&s,sizeof s,1,fp); + + DisplayZ80State(&s,136,WHITE); + + for(f=0;f<10;f++) + { + char str[80]; + char *p; + int paper; + int y; + + y=24+f*8; + + if (f==0) + paper=RED; + else + paper=BLACK; + + GFXPrintPaper(0,y,GREEN,paper,"%4.4x ",s.PC); + + strcpy(str,Z80Disassemble(z80,&s.PC)); + p=strtok(str,";"); + GFXPrintPaper(40,y,WHITE,paper,"%s",str); + } + + GFXPrint(0,112,GREEN,"Current step: %ld",pos+1); + GFXPrint(0,120,GREEN,"Total steps : %ld",max_pos); + + prev_pos=pos; + + GFXEndFrame(FALSE); + + e=GFXWaitKey(); + + switch(e->key.keysym.sym) + { + case SDLK_F1: + GUIMessage + ("PLAYBACK HELP","%s", + "ESC - Exit\n" + "Enter - Step number to display\n" + "P - Search for PC\n" + "Cursor Up - Prev step\n" + "Cursor Down - Next step\n" + "Page Up - Back 50 steps\n" + "Page Down - Forward 50 steps\n" + "Cursor Left - Back 1000 steps\n" + "Cursor Right - Forward 1000 steps\n \n" + "NOTE: Disassembly is as memory is NOW"); + break; + + case SDLK_ESCAPE: + quit=TRUE; + break; + + case SDLK_RETURN: + case SDLK_KP_ENTER: + EnterLong("Step number?",&pos); + pos--; + break; + + case SDLK_p: + if (EnterAddress("PC to search for?",z80,&pc)) + { + while((rd=fread(&s,sizeof s,1,fp))==1) + { + pos++; + if (s.PC==pc) + break; + } + + if (rd!=1) + { + GUIMessage("NOTICE","Address not found"); + pos=prev_pos; + } + } + break; + + case SDLK_UP: + pos--; + break; + + case SDLK_DOWN: + pos++; + break; + + case SDLK_PAGEUP: + pos-=50; + break; + + case SDLK_PAGEDOWN: + pos+=50; + break; + + case SDLK_LEFT: + pos-=1000; + break; + + case SDLK_RIGHT: + pos+=1000; + break; + + default: + break; + } + + /* Check position before next loop + */ + if (pos<0) + pos=0; + + if (pos>=max_pos) + pos=max_pos-1; + } + + fclose(fp); +} + + /* ---------------------------------------- EXPORTED INTERFACES */ void MemoryMenu(Z80 *z80) @@ -366,8 +619,20 @@ void MemoryMenu(Z80 *z80) DoDisassemFile(z80,&s); break; - case SDLK_ESCAPE: case SDLK_3: + if (!trace) + EnableTrace(z80,&s); + else + DisableTrace(z80); + break; + + case SDLK_4: + DisableTrace(z80); + PlaybackTrace(z80); + break; + + case SDLK_ESCAPE: + case SDLK_5: quit=TRUE; break; @@ -383,31 +648,9 @@ void MemoryMenu(Z80 *z80) void DisplayState(Z80 *z80) { Z80State s; - int y; Z80GetState(z80,&s); - - y=136; - - GFXPrintPaper(0,y,RED,BLACK,"PC=%4.4x A=%2.2x F=%s", - s.PC,s.AF>>8,FlagString(s.AF&0xff)); - y+=8; - - GFXPrintPaper(0,y,RED,BLACK,"BC=%4.4x DE=%4.4x HL=%4.4x",s.BC,s.DE,s.HL); - y+=8; - - GFXPrintPaper(0,y,RED,BLACK,"IX=%4.4x IY=%4.4x SP=%4.4x",s.IX,s.IY,s.SP); - y+=8; - - GFXPrintPaper(0,y,RED,BLACK,"I=%2.2x IM=%2.2x R=%2.2x",s.I,s.IM,s.R); - y+=8; - - GFXPrintPaper(0,y,RED,BLACK,"IFF1=%2.2x IFF2=%2.2x",s.IFF1,s.IFF2); - y+=8; - - y+=8; - GFXPrintPaper(0,y,RED,BLACK,"%s\n",SPECInfo(z80)); - y+=8; + DisplayZ80State(&s,136,RED); } |