1*45699Sbostic /* Acall.c 1.2 90/12/04 */ 229593Ssam 3*45699Sbostic #include "align.h" 429593Ssam call(infop) 529593Ssam process_info *infop; 629593Ssam /* 729593Ssam /* Call a procedure with argument list on stack. 829593Ssam /* 929593Ssam /******************************************************/ 1029593Ssam { 1129593Ssam 1229593Ssam register long removed, mask, new_address, i, next, temp_fp; 1329593Ssam 1429593Ssam printf("entering call\n"); 1529593Ssam removed = operand(infop, 0)->data & 0xffff ; 1629593Ssam printf("after first call to operand\n"); 1729593Ssam new_address = operand(infop, 1)->address; 1829593Ssam printf("in call, removed = 0x%x , new_address=0x%x \n",removed, new_address); 1929593Ssam push (infop, fp); 2029593Ssam temp_fp = sp; 2129593Ssam mask = get_word (infop, new_address) & 0x1fff; /* Only bits 12-0 */ 2229593Ssam printf("in call, mask = 0x%x , pc=0x%x \n",mask,pc); 2329593Ssam push (infop, mask << 16 | removed); 2429593Ssam push (infop, pc); /* Next opcode address */ 2529593Ssam next = 12; /* Register # to save */ 2629593Ssam for (i = 0x1000; i != 0; i = i >> 1) 2729593Ssam { 2829593Ssam if ( i & mask ) push (infop, Register (infop, next)); 2929593Ssam next--; 3029593Ssam } 3129593Ssam fp = temp_fp; 3229593Ssam pc = new_address + 2; /* Transfer control */ 3329593Ssam } 34