void debug_prompt()
{
char s[81] = { 0 };
UINT8 done = 0;
struct cpudef *cpu = get_cpu_struct(g_which_cpu);
unsigned int addr = cpu->getpc_callback(); // this function relies on addr being initialized to PC
g_break = 0; // once they get here, don't break anymore
// they have to issue a proper command to get out of the prompt
while (!done && !get_quitflag())
{
newline();
print_cpu_context(); // show registers and stuff
sprintf(s, "[#%u][%04x Command,'?']-> ", g_which_cpu, cpu->getpc_callback());
outstr(s);
con_getline(s, 80);
switch(toupper(s[0]))
{
case 'S':
// this might help with debugging *shrug*
g_ldp->pre_step_forward();
printline("Stepping forward one frame...");
break;
case 'C': // continue execution
g_cpu_trace = 0;
done = 1;
break;
case 'D': // disassemble
// if they entered in an address to disassemble at ...
if (strlen(s) > 1)
{
addr = (unsigned int) strtol(&s[1], NULL, 16); // convert base 16 text to a number
}
// else if they entered no parameters, disassemble from PC
debug_disassemble(addr);
break;
case 'F': // display current laserdisc frame
g_ldp->print_frame_info();
print_ldv1000_info();
break;
case 'I': // break at end of interrupt
printline("This feature not implemented yet =]");
break;
case '=': // set a new breakpoint
// if they entered in an address to disassemble at ...
if (strlen(s) > 1)
{
g_breakpoint = (UINT32) strtol(&s[1], NULL, 16); // convert base 16 text to a number
g_break = 1;
g_cpu_trace = 0;
done = 1;
}
// else if they entered no parameters, disassemble from PC
else
{
printline("You must specify an address to break at.");
}
break;
case 'M': // memory dump
if (strlen(s) > 1)
{
addr = (unsigned int) strtol(&s[1], NULL, 16);
}
print_memory_dump(addr);
break;
case 'N': // next CPU
g_which_cpu++;
// if we've run out of CPU's to debug, wrap back around to the first cpu
if (get_cpu_struct(g_which_cpu) == NULL) g_which_cpu = 0;
break;
case 0: // carriage return
g_cpu_trace = 1;
done = 1;
break;
case 'Q': // quit emulator
set_quitflag();
break;
case 'W': // write byte at address
if (strlen(s) > 1)
{
int i = 2; // skip the W and the first whitespace
Uint32 addr = 0;
Uint8 val = 0;
// find next whitespace
while (s[i] != ' ')
{
i++;
}
s[i] = 0; // terminate string so we can do a strtol
addr = (Uint32) strtol(&s[1], NULL, 16); // convert base 16 text to a number
val = (Uint8) strtol(&s[i+1], NULL, 16); // i+1 because we skip the NULL-terminator we added before
g_game->cpu_mem_write((Uint16) addr, val); // assume 16-bit for now
}
break;
case '?': // get menu
debug_menu();
break;
default:
printline("Unknown command, press ? to get a menu");
break;
}
} // end while
}
/******************************************************************************
* Name: main
* Description: Program entry point
*
* Returns: int - returns 0 if no errors
******************************************************************************/
int main() {
/* declare a network interface and network addresses */
struct netif *netif, server_netif;
struct ip_addr ipaddr, netmask, gw;
/* specify a unique MAC address for the board */
#ifdef XPAR_CPU_PPC440_CORE_CLOCK_FREQ_HZ /* set MAC on ML507 board */
unsigned char mac_ethernet_address[] = {0x00, 0x0a, 0x35, 0x01, 0xC9, 0x76};
#else /* set MAC on ML410 board */
unsigned char mac_ethernet_address[] = {0x00, 0x0a, 0x35, 0x01, 0x9A, 0xFE};
#endif
/* set the network interface pointer */
netif = &server_netif;
/* enable caches */
XCache_EnableICache( INSTR_CACHE );
XCache_EnableDCache( DATA_CACHE );
/* setup interrupts */
setup_interrupts();
/* initliaze network addresses to be used */
IP4_ADDR( &ipaddr, 192, 168, 1, 15 );
IP4_ADDR( &netmask, 255, 255, 255, 0 );
IP4_ADDR( &gw, 192, 168, 1, 1 );
/* print the application header and IP settings */
print_app_header();
print_ip_settings(&ipaddr, &netmask, &gw);
/* initialize lwip */
lwip_init();
/* add network interface to the netif_list, and set it as default */
if( !xemac_add( netif, &ipaddr, &netmask, &gw,
mac_ethernet_address, EMAC_BASEADDR ) ) {
xil_printf( "Error adding N/W interface\n\r" );
return -1;
}
netif_set_default( netif );
/* now enable interrupts */
enable_interrupts();
/* specify that the network if is up */
netif_set_up( netif );
/* start the application */
start_application();
/* print debug header if debug mode set */
#ifdef QMFIR_DEBUG
debug_menu();
while( 1) {
qmfir_debug();
}
#endif
/* receive and process packets */
while( 1 ) {
xemacif_input( netif );
}
/* disable caches */
XCache_DisableDCache();
XCache_DisableICache();
return 0;
} /* main */
