int main(void)
{
ResetCPU() ;
/* the above call should never return */
printf("resetCPU: Failed to reset the system\n") ;
return(0) ;
}
int PASCAL WinMain(HANDLE hInst,HANDLE hPrev,LPSTR lpszCmdLine,int nCmdShow)
{
WNDCLASS wc;
MSG Msg;
BOOL QuitMsg;
int n;
hInstance = hInst;
if (hPrev == NULL)
{
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC)MainWndProc;
wc.cbWndExtra = 0;
wc.cbClsExtra = 0;
wc.hInstance = hInst;
wc.hIcon = LoadIcon(hInst,MAKEINTRESOURCE(900));
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.hbrBackground = GetStockObject(BLACK_BRUSH);
wc.lpszMenuName = MAKEINTRESOURCE(999);
wc.lpszClassName = "Studio2Class";
RegisterClass(&wc);
}
lstrcpy(szCartridge,lpszCmdLine);
hWndMain = CreateWindow("Studio2Class",
"WinSTEM",
WS_OVERLAPPEDWINDOW | WS_BORDER,
CW_USEDEFAULT,CW_USEDEFAULT,
128*SCALE,96*SCALE,
NULL,
NULL,
hInst,NULL);
DragAcceptFiles(hWndMain,TRUE);
ShowWindow(hWndMain,nCmdShow);
EXTInitialise(hInst,hWndMain);
ResetCPU(szCartridge);
SendMessage(hWndMain,WMU_SETTITLE,0,0L);
QuitMsg = FALSE;
while (!QuitMsg)
{
if (PeekMessage(&Msg, NULL, 0, 0, PM_REMOVE))
{
if (Msg.message == WM_QUIT) QuitMsg = TRUE;
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
else
{
CompleteFrame(szCartridge);
CompleteFrame(szCartridge);
CompleteFrame(szCartridge);
}
}
EXTTerminate();
return(0);
}
LRESULT CALLBACK MainWndProc(HWND hWnd,unsigned iMessage,WORD wParam,LONG lParam)
{
LONG lRet = 0L;
HMENU hMenu;
int Scale;
RECT rc,rcc;
OPENFILENAME ofn;
char szBuffer[128],szName[MAXFILE+10];
switch(iMessage)
{
case WM_COMMAND:
switch(wParam)
{
case 101: ResetCPU(szCartridge);
break;
case 103: SendMessage(hWnd,WM_CLOSE,0,0L);
break;
case 102: MessageBox(hWnd,"WinSTEM Studio II Emulator\n\nWritten by Paul Robson 2000","About...",MB_OK | MB_ICONINFORMATION);
break;
case 104:
case 106: hMenu = GetMenu(hWnd);
CheckMenuItem(hMenu,104,MF_BYCOMMAND | ((wParam == 104) ? MF_CHECKED : MF_UNCHECKED));
CheckMenuItem(hMenu,106,MF_BYCOMMAND | ((wParam == 106) ? MF_CHECKED : MF_UNCHECKED));
_EXTSetColour(wParam == 104);
break;
case 108:
case 109: Scale = (wParam == 108) ? 4 : 1 ;
GetWindowRect(hWnd,&rc);
GetClientRect(hWnd,&rcc);
SetWindowPos(hWnd,
NULL,
rc.left,
rc.top,
(rc.right-rc.left)-rcc.right+rcc.right*Scale/2,
(rc.bottom-rc.top)-rcc.bottom+rcc.bottom*Scale/2,
SWP_NOZORDER);
break;
case 105:
SetupDialog(hWnd,&ofn);
if (GetOpenFileName(&ofn) != 0)
{
ResetCPU(szCartridge);
SendMessage(hWndMain,WMU_SETTITLE,0,0L);
}
break;
}
break;
case WM_DROPFILES:
DragQueryFile( (HANDLE)wParam,0,szCartridge,sizeof(szCartridge));
ResetCPU(szCartridge);
SendMessage(hWndMain,WMU_SETTITLE,0,0L);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WMU_SETTITLE:
if (lstrlen(szCartridge) == 0)
SetWindowText(hWnd,"WinStem");
else
{
fnsplit(szCartridge,szBuffer,szBuffer,szName,szBuffer);
strlwr(szName);
szName[0] = toupper(szName[0]);
lstrcat(szName," - WinStem");
SetWindowText(hWnd,szName);
}
break;
default:
lRet = DefWindowProc(hWnd,iMessage,wParam,lParam);
break;
}
return(lRet);
}
int main(int argc, const char* argv[])
{
ARM_CPU cpu;
ARM_NAND nand;
ARM_Memory mem;
ARM_Exception exp;
uint32_t *pc;
uint32_t instr_arm;
uint16_t instr_thumb;
int type;
char cmd[10];
SDL_Event e;
int quit;
unsigned long numcycles;
if(argc != 2){
printf("Usage: %s <foo.rom>\n", argv[0]);
return 0;
}
memset(cmd, '\0', sizeof(char) * 10);
ResetCPU(&cpu);
InitNAND(&nand, argv[1]);
InitMemory(&nand, &mem, 0x02000000);
DestroyNAND(&nand);
quit = 0;
/* stack cheat*/
*cpu.reg[3][SP] = 0x01000000;
numcycles = 0;
while(!quit)
{
#if 0
scanf("%s", cmd);
if(strcmp(cmd, "next") && strcmp(cmd, "n"))
break;
memset(cmd, '\0', sizeof(char) * 10);
#endif
if(!cpu.cpubusywait){
pc = GetProgramCounter(&cpu);
instr_arm = ReadInstruction32(&cpu, &mem);
type = ARMV4_ParseInstruction((ARM_Word)instr_arm);
// PrintInstruction(&cpu, type, *pc);
cpu.cpubusywait = ARMV4_ExecuteInstruction(&cpu, &mem, (ARMV4_Instruction)instr_arm, type);
cpu.cpubusywait = 0; /* test */
++numcycles; /* test */
#if 1
if(cpu.exception) /* test */
break;
#endif
exp = HandleException(&cpu); /*undefined, interrupt, SWI, data abort, etc */
if(exp == ARM_Exception_Unpredictable){
printf("Unpredictable behaviour at address %u!\n",*pc);
break;
}
if(!cpu.shouldflush)
*pc += 4; /* cpu->cpsr.f.thumb ? 2 : 4; */
else
cpu.shouldflush = 0;
}
else
--cpu.cpubusywait;
while(SDL_PollEvent(&e)){
if(e.type == SDL_QUIT)
quit = 1;
if(e.type == SDL_KEYDOWN)
quit = 1;
}
if(*pc & 0x3)
break;
}
DestroyMemory(&mem);
printf("Time elapsed: %f\n", (float)SDL_GetTicks() * 0.001f);
printf("Instructions executed: %lu\n", numcycles);
printf("MIPS: %f\n",((float)numcycles / ((float)SDL_GetTicks() * 0.001f)) * 0.000001f);
return 0;
}