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[/] [scarm/] [trunk/] [src/] [scB.cpp] - Blame information for rev 8

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1 5 zhong 
// scB.cpp: implementation of the scB class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "scB.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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scB::scB(uint32_t i)
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{
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  ir.offset=i;
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  ir.link=(i>>24);
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  ir.pad =(i>>25);
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  ir.cond=(i>>28);
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}
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scB::~scB()
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{
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}
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const char * scB::kind_string_b="B";
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const char * scB::kind_string_bl="BL";
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const char * scB::kind()
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{
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        if(ir.link==1)
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        {
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                return kind_string_bl;
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                cout<<"link"<<endl;
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        }
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        else
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                return kind_string_b;
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}
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uint32_t scB::A()
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{
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  return R_PC;
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}
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REGS scB::Rd()
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{
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  return R_PC;
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}
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bool scB::is_shift()
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{
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  return true;
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}
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bool scB::is_ls()
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{
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  return false;
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}
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bool scB::is_word()
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{
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  return true;
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}
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bool scB::is_mult()
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{
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  return false;
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}
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bool scB::is_rs()
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{
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  return false;
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}
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uint32_t scB::B()
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{
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  //24bit  offset Sign extension
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  uint32_t temp=ir.offset;
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  if((temp&(0x00800000))!=0)
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  {
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     temp=(temp|0xFF000000);
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  }
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  return temp;
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}
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uint32_t scB::dist()
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{
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  return 2;
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}
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OPCODE scB::op()
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{
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  return OP_ADD;
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}
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SHIFT scB::shift_type()
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{
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  return S_LSL;
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}
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COND scB::cond()
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{
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  return COND(ir.cond);
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}
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bool scB::is_imm()
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{
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  return true;
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}
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bool scB::wb()
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{
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 return ir.link;
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}
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REGS scB::Rn()
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{
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  return R_PC;
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}
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bool scB::pre()
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{
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  return 0;
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}
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bool scB::load()
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{
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  return false;
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}
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bool scB::is_branch()
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{
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 return true;
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}
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bool scB::set( )
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{
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 return false;
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}
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bool scB::is_link()
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{
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  return ir.link;
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}

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