static void BreakRet( mad_trace_data *td, mad_disasm_data *dd, const mad_registers *mr )
{
address sp;
union {
addr32_off off32;
addr48_off off48;
} off;
sp = GetRegSP( mr );
switch( dd->ins.type ) {
case DI_X86_iret:
MCReadMem( sp, sizeof( off.off32 ), &off.off32 );
sp.mach.offset += sizeof( off.off32 );
td->brk.mach.offset = off.off32;
MCReadMem( sp, sizeof( td->brk.mach.segment ), &td->brk.mach.segment );
sp.mach.offset += sizeof( td->brk.mach.segment );
break;
case DI_X86_iretd:
MCReadMem( sp, sizeof( off.off48 ), &off.off48 );
sp.mach.offset += sizeof( off.off48 );
td->brk.mach.offset = off.off48;
MCReadMem( sp, sizeof( td->brk.mach.segment ), &td->brk.mach.segment );
sp.mach.offset += sizeof( td->brk.mach.segment );
break;
default:
if( dd->characteristics & X86AC_BIG ) {
MCReadMem( sp, sizeof( off.off48 ), &off.off48 );
sp.mach.offset += sizeof( off.off48 );
td->brk.mach.offset = off.off48;
} else {
MCReadMem( sp, sizeof( off.off32 ), &off.off32 );
sp.mach.offset += sizeof( off.off32 );
td->brk.mach.offset = off.off32;
}
switch( td->prev_ins_type ) {
case DI_X86_call:
case DI_X86_call2:
case DI_X86_ret:
case DI_X86_ret2:
td->brk.mach.segment = mr->x86.cpu.cs;
break;
case DI_X86_call3:
case DI_X86_call4:
case DI_X86_int:
case DI_X86_into:
case DI_X86_iret:
case DI_X86_iretd:
case DI_X86_retf:
case DI_X86_retf2:
MCReadMem( sp, sizeof( td->brk.mach.segment ), &td->brk.mach.segment );
sp.mach.offset += sizeof( td->brk.mach.segment );
break;
default:
break;
}
}
MCAddrSection( &td->brk );
}
char *ToSegStr( addr_off value, addr_seg seg, addr_off addr )
{
address memaddr;
mad_type_handle th;
addr = addr;
memaddr.mach.segment = seg;
memaddr.mach.offset = value;
MCAddrSection( &memaddr );
th = BIG_SEG( memaddr ) ? X86T_F32_PTR : X86T_F16_PTR;
MCAddrToString( memaddr, th, MLK_MEMORY, sizeof( ScratchBuff ) - 1, ScratchBuff );
return( ScratchBuff );
}
