1*29593Ssam /* Acall.c 1.1 86/07/20 */ 2*29593Ssam 3*29593Ssam #include "../tahoealign/align.h" 4*29593Ssam call(infop) 5*29593Ssam process_info *infop; 6*29593Ssam /* 7*29593Ssam /* Call a procedure with argument list on stack. 8*29593Ssam /* 9*29593Ssam /******************************************************/ 10*29593Ssam { 11*29593Ssam 12*29593Ssam register long removed, mask, new_address, i, next, temp_fp; 13*29593Ssam 14*29593Ssam printf("entering call\n"); 15*29593Ssam removed = operand(infop, 0)->data & 0xffff ; 16*29593Ssam printf("after first call to operand\n"); 17*29593Ssam new_address = operand(infop, 1)->address; 18*29593Ssam printf("in call, removed = 0x%x , new_address=0x%x \n",removed, new_address); 19*29593Ssam push (infop, fp); 20*29593Ssam temp_fp = sp; 21*29593Ssam mask = get_word (infop, new_address) & 0x1fff; /* Only bits 12-0 */ 22*29593Ssam printf("in call, mask = 0x%x , pc=0x%x \n",mask,pc); 23*29593Ssam push (infop, mask << 16 | removed); 24*29593Ssam push (infop, pc); /* Next opcode address */ 25*29593Ssam next = 12; /* Register # to save */ 26*29593Ssam for (i = 0x1000; i != 0; i = i >> 1) 27*29593Ssam { 28*29593Ssam if ( i & mask ) push (infop, Register (infop, next)); 29*29593Ssam next--; 30*29593Ssam } 31*29593Ssam fp = temp_fp; 32*29593Ssam pc = new_address + 2; /* Transfer control */ 33*29593Ssam } 34