#ifdef GCC
#define __environment _CbC_environment
#define __return _CbC_return
#endif

/*
  test for CbC converted __code from C
*/

#include <stdio.h>
#include <stdlib.h>


typedef void *stack;

void *stack0;      /* size of void* == 1 */

struct cont_save { /* General Return Continuation */
  __code (*ret)(int,void*);
};

/*
  __code g(int,void *);
  __code f_g0(int ,int ,void *);
  __code f_g1(int,void *);
*/

struct f_g0_save {  /* Specialized Return Continuation */
  __code (*ret)(int,void*);
  int ii,kk,jj;
};

__code g(int i,void *sp) {
  goto (* ((struct cont_save *)sp)->ret)(i+4,sp);
}

__code f_g1(int j,void *sp) {  /* Continuation  */
  int k;
  struct f_g0_save *c;

  c = sp;
  k = c->kk;
  sp += sizeof(struct f_g0_save);
  goto (* ((struct cont_save *)sp)->ret)(k+4+j,sp);
}

__code f(int i,void *sp) {
  int k,j;
  struct f_g0_save *c;
  printf("#0047:f 0 sp: %lx\n",sp-stack0);

  k = 3+i;

  printf("#0051:f 1 sp: %lx\n",sp-stack0);
  sp -= sizeof(struct f_g0_save);
  printf("#0053:f 2 sp: %lx\n",sp-stack0);
  c = sp;
  c->kk = k;
  c->ii = i;
  c->jj = j;
  c->ret = f_g1;
  goto g(i,sp);
}



struct f0_save {  /* Specialized Return Continuation */
  __code (*ret)();
  __code (*exit1)();
  void *exit1env;
  int jj;
};

__code f1(int i,void *sp) ;
__code f0(int i,int j,__code(*exit2)(), void *exit2env,void *sp)
{
  struct f0_save *c;
  printf("#0075:f0 1 sp: %lx\n",sp-stack0);
  sp -= sizeof(struct f0_save);
  printf("#0077:f0 2 sp: %lx\n",sp-stack0);
  c = sp;
  c->jj = j;
  c->exit1 = exit2;
  c->exit1env = exit2env;
  c->ret = f1;
  printf("#0083:f0 3 sp: %lx\n",sp-stack0);
  goto f(i,sp);
}

__code print(int i,int j,__code (*exit1)(),void*exit1env);

__code f1(int i,void *sp) {
  int j;
  int *exit2env;
  __code (*exit2)();
  struct f0_save *c;

  c = sp;
  j = c->jj;
  exit2 = c->exit1;
  exit2env = c->exit1env;

  sp += sizeof(struct f0_save);
  goto print(i,j,exit2,exit2env);
}

int main( int ac, char *av[])
{
  int i,j;
  int *sp;

  // i = atoi(av[1]);
  i = 1;
  stack0 = ((char *)malloc(1024)+1024);
  sp = stack0;
  j = i;
    
  printf("#0115:sp: %lx %lx\n",sp-(int*)stack0,sizeof(*stack0));
  goto f0(i,j,__return,__environment,sp);
}

__code print(int i,int j,__code (*exit1)(int,void*),void*exit1env)
{
  printf("#0121:%d %d\n",i,j);
  goto (*exit1)(0,exit1env);
}