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/*
* Simulator of microcontrollers (tlcs.src/inst_jmp.cc)
*
* Copyright (C) 2016,16 Drotos Daniel, Talker Bt.
*
* To contact author send email to drdani@mazsola.iit.uni-miskolc.hu
*
*/
/* This file is part of microcontroller simulator: ucsim.
UCSIM is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
UCSIM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with UCSIM; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/*@1@*/
/* $Id: inst_jump.cc 549 2016-12-13 11:15:58Z drdani $ */
#include "tlcscl.h"
// 1e
int
cl_tlcs::inst_ret()
{
t_mem pushed_pc;
exec_ret(PC-1, &pushed_pc);
PC= pushed_pc;
return resGO;
}
// 1f
int
cl_tlcs::inst_reti()
{
t_mem pushed_pc, pushed_af;
exec_pop(PC-1, &pushed_af);
exec_reti(PC-1, &pushed_pc);
reg.af= pushed_af;
PC= pushed_pc;
return resGO;
}
// CALL
int
cl_tlcs::inst_call(t_addr PC_of_inst, u16_t addr)
{
exec_call(PC_of_inst, addr, PC);
PC= addr;
return resGO;
}
// DJNZ
int
cl_tlcs::inst_djnz_b(i8_t d)
{
reg.rbc.b--;
if (reg.rbc.b != 0)
PC+= d;
return resGO;
}
// DJNZ BC
int
cl_tlcs::inst_djnz_bc(i8_t d)
{
reg.bc--;
if (reg.bc != 0)
PC+= d;
return resGO;
}
/* End of tlcs.src/inst_jmp.cc */
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