rpi4-osdev/part12-wgt/samples/template.c

#include "include/wgt.h"
#include "include/mem.h"
#include "include/multicore.h"

// ######## REQUIRED FUNCTIONS ########

unsigned long state0 = 1000;
unsigned long state1 = 2000;

unsigned long rand(void)
{
    unsigned long s1 = state0;
    unsigned long s0 = state1;

    state0 = s0;
    s1 ^= s1 << 23;
    s1 ^= s1 >> 17;
    s1 ^= s0;
    s1 ^= s0 >> 26;
    state1 = s1;

    return state0 + state1;
}

// ######## STUB FUNCTIONS ########

unsigned int kb = 0;

unsigned int kbhit(void) {
    kb++;
    return kb / 500;
}

void getch(void) {
    wait_msec(0x500000);
    kb = 0;
}

// ######## WGT EXAMPLES ########

void wgt37()
{
  set_clock_rate(get_max_clock());
  mem_init();
  vga256 ();			/* Initialize graphics mode */

  start_core2(minit);           // Start the comms engine (core 2)
  while (!comms_up);            // Wait for comms up

  mdeinit ();                   /* Deinitialize the mouse handler */
}

void main()
{
    wgt37();
    while (1);
}